IMPORTANT! SmartReader Plus Data Loggers Reference Guide Copyright © 2010 ACR Systems Inc. All Rights Reserved.
SmartReader Plus Data Loggers Copyright © 2010 ACR Systems Inc. All Rights Reserved. All rights reserved. No parts of this work may be reproduced in any form or by any means - graphic, electronic, or mechanical, including photocopying, recording, taping, or information storage and retrieval systems - without the written permission of ACR Systems Inc. Products that are referred to in this document may be either trademarks and/or registered trademarks of the respective owners.
TRADEMARK NOTICES SmartReader Plus is a Registered Trademark of ACR Systems Inc.
LIMITED WARRANTY ACR Systems Inc. warrants the hardware to be free from defects in workmanship and components for one year from the date of purchase, provided they are not abused or subjected to detrimental conditions. Software is warranted for one year from the date of purchase, to operate in accordance with its programmed instructions. It is not warranted to be error-free.
Contents I Table of Contents Section I SmartReader Plus Data Logger 1 1 Introduction ............................................................................................................................................ to SmartReader Plus Data Loggers 1 Features ........................................................................................................................................................... 1 Description .................................................................
II SmartReader Plus Data Loggers Voltage Channels ........................................................................................................................................................... 35 ........................................................................................................................................................... Current Probes and Accessories 36 ............................................................................................................
Contents III Specifications ........................................................................................................................................................... 63 13 SmartReader ............................................................................................................................................ Plus 10 RTD Temperature Logger 65 Description .......................................................................................................................
IV Index SmartReader Plus Data Loggers 105 Copyright © 2010 ACR Systems Inc. All Rights Reserved.
WELCOME Congratulations on your purchase of a SmartReader Plus data logger. We are confident that you will find it to be a most valuable and useful tool for your data collection applications. This Reference Guide is designed to be used hand-in-hand with TrendReader 2.0 software and frequently refers to TrendReader 2.0 conventions and procedures. To get the most from your logger, please take time to familiarize yourself with TrendReader 2.0 and its Reference Guide.
1 SmartReader Plus Data Loggers SECTION 1 SmartReader Plus Data Logger 1.1 Introduction to SmartReader Plus Data Loggers SmartReader Plus data loggers are easy-to-use, battery-powered data loggers. Pocket-sized and rugged, they can be used in a wide range of environmental and industrial applications. Different SmartReader Plus models are available to directly measure and record variables such as temperature, relative humidity, pressure, electric current, analog voltage, current loop and pulses.
SmartReader Plus Data Logger 2 long-life lithium battery that will provide years of reliable operation, your SmartReader Plus can work independently from any external power supply or computer. When you are ready to look at the data it has collected, it can transfer all information to your computer through the use of TrendReader software.
3 SmartReader Plus Data Loggers the sample rate the logger begins to average readings before saving them to memory. To do this the logger takes a reading every eight seconds, but instead of transferring this directly to the logger's memory, it stores the readings in a buffer (a temporary memory) where it is retained until the sampling interval is over. When you backup a logger's data to your computer, the correct time and date are referenced to each reading.
SmartReader Plus Data Logger 4 must be connected to the data logger. Making External Connections If you are using your SmartReader Plus data logger to monitor external modules, sensors, or circuitry, make sure the connections are tight. Also, make sure the terminal block is snapped securely into the logger. For permanent applications, wiring connections can first be made to the logger's removable terminal block. The terminal block can then be attached (with glue for example) to a permanent fixture.
5 SmartReader Plus Data Loggers Cold or Humid Environments Make sure that the environment you will be placing your logger into will be acceptable by referring to the Specifications in this chapter. If conditions are not adequate for the logger, consider using a protective enclosure. For humid conditions you can protect your logger simply by placing it in a zip-lock plastic bag.
SmartReader Plus Data Logger 6 Memory Sizes: Model Readings Bytes 32 KB 21,500 32 KB 128 KB 87,000 128 KB 1.5 MB 1,048,000 1.5 MB* *See specific model for availability. Sampling Methods: 1. Continuous (First-in, First-out)* 2. Stop when full (Fill-then-stop) *Not available with sample rates faster than 8 seconds. Sample Rates: User-selectable rates from 25 per second to every 8 hours. (BP-101 battery pack required for sample rates less than 8 seconds).
7 1.1.7 SmartReader Plus Data Loggers Product Approvals Meets Part 15 for Digital Devices of the Code of Federal Regulations of the Federal Communications Commission (FCC). Meets Class A radiated and conducted emission requirements of Section 2 of the Radio Interference Regulations of Communications Canada, IEC801-2, 3, 4 and EN55011 covering ESD, RFI Immunity, EFT/Burst and Radiated Emissions respectively for the Commission of the European Communities (CE). Copyright © 2010 ACR Systems Inc.
SmartReader Plus Data Logger 1.2 8 SmartReader Plus Software Driver TrendReader software uses a software driver to communicate with SmartReader Plus data loggers. The software driver takes the form of two windows. The Status window, shown when you contact the logger, is used to display the settings currently stored in the data logger. The Setup window, shown when you select Edit Setup, is used to alter the current settings and apply the changes to the data logger.
9 SmartReader Plus Data Loggers open, thereby allowing you to make changes in other features. NOTE: SmartReader Plus data loggers can be connected together in a network. For information on networks, see Appendix F Connecting Multiple Loggers. 1.2.1 Logger Status When you contact the logger, the logger status is displayed. The Status line indicates whether the data logger is actively logging, waiting to start or dormant.
SmartReader Plus Data Logger 1.2.1.1 10 Logger Sampling The sample rate is the frequency with which a logger takes readings. The Sampling subsection indicates if the data logger is performing in a regular or fast sampling mode and what the sample rate is. In normal sampling, the rates available are from once every 8 seconds to once every 8 hours, while in fast sampling, the rates can be as quick as 25 times per second. To set the logger for regular sampling, click on the Mode field and select Normal.
11 SmartReader Plus Data Loggers *Note that the logger will stop recording (go dormant) when you communicate with it. Therefore, if you want to perform fast sampling with the logger connected to your computer, you need to turn off Realtime. To ensure that the logger takes data at the correct time, it is best to use the delayed start feature. The logger will begin to take readings when you connect the power source, providing the start delay has expired.
SmartReader Plus Data Logger 12 Full. To set when the logger will start recording click on the Start Time field. Next, click on the small button that appears at the right. This will pop up a form allowing you to set the date and time. Highlight the date or time and enter the appropriate value. You can also click on the drop-down list arrow to bring up a calendar. You can set the logger's starting time for up to 6 days, 1 hour, and 39 minutes ahead. To set how long to record, click on the End Time field.
13 SmartReader Plus Data Loggers appears at the right. This will pop up a form allowing you to set the date and time or the capacity. Just like entering the start time, you can highlight the date or time and enter the appropriate value or you can also click on the drop-down list arrow to bring up a calendar. If you want to record a specific number of readings, simply drag the usage bar to adjust the number of readings to take. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
SmartReader Plus Data Logger 1.2.1.3 14 Logger Alarms Alarms are used to indicate when any reading has exceeded preset alarm thresholds. When an alarm condition occurs, the logger dials the stored number, typically for a phone or a pager, and leaves the remote site's phone number as a message. As such, alarms are very useful for monitoring loggers installed at remote locations. Note that alarms must be enabled for each channel that is monitored.
15 1.2.1.3.1 SmartReader Plus Data Loggers Delay Before First Call The Delay Before the First Call is the length of time that a logger will wait before dialing out once an alarm condition has occurred. If you do not want the remote logger to dial out immediately when one or more of its channels go into an alarm condition, you can set the Call Delay to designate the number of seconds the logger has to wait before dialing. The maximum time for this delay is 2040 seconds.
SmartReader Plus Data Logger 16 To set this delay, click on the Delay Between Calls field and enter the value. 1.2.1.3.3 Delay After Backup The Delay After Backup is the period of time that the alarm feature is temporarily disabled after the logger has been backed up. The delay begins when you acknowledge the alarm by backing up the logger that dialed out. The Delay After Backup deactivates the alarm, giving you time to fix the problem that caused the alarm. The maximum delay is 720 minutes.
17 SmartReader Plus Data Loggers To set this delay, click on the Delay After Backup field and enter the value. 1.2.1.3.4 Baud Rate The Baud Rate determines the data rate that the logger uses to communicate with the modem that performs the dialing out. The baud rates available range from 1200 to 57,600. To set the baud rate, click on the Baud Rate field and select the value from the drop-down list. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
SmartReader Plus Data Logger 1.2.1.3.5 18 Alarm Dialout String The Alarm Dialout String contains the phone number to dial, along with any modem commands or messages. To set this string, click on the Alarm Dialout String field and enter the value. Calling a Telephone Remember that the telephone receiving the alarm call must have caller ID to display the remote site's phone number, otherwise you will have no way of knowing where the call came from. 1.
19 SmartReader Plus Data Loggers For example, if you want to dial a pager number, pause for several seconds, and then send the serial number of the data logger, you would type: ATDT 123-555-2222,,,,,12345 1.2.2 Logger Channels The Channels section indicates what channels are enabled (there is a check mark beside the channel number) and provides information specific to each channel.
SmartReader Plus Data Logger 20 To set the description, click on the Description field and enter the name. The logger collects and stores raw data readings. An equation is used to transform the raw data into measurement units, such as °C, with the current reading shown as a Realtime value. You can use built-in equations or you can create your own custom equations. See Equations in the TrendReader guide for further information.
21 1.2.2.2 SmartReader Plus Data Loggers Channel Alarms The Alarm subsection shows the high and low alarm thresholds and whether the high and low alarms are enabled. See Logger Alarms for a description of the logger alarms. To set each alarm, first enable the alarm, then click on the Alarm field and enter the value. For some channels, such as RH, the sensor output depends on the temperature and the equation needs to compensate for this.
SmartReader Plus Data Logger 1.2.3 22 Logger Connection Settings If you are using a wireless or RF modem, with an RFA adapter cable, then you will have to change the Cable type and possibly the Block size. Cable Type 1. If you have not yet saved a connection setting for the RF modem, select the Connections view in the Shortcuts Bar of TrendReader. Otherwise skip to step 4. 2. Select the COM port to which the RF modem is attached. 3.
23 SmartReader Plus Data Loggers 8. Select only the SRPLogger. Click OK. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
SmartReader Plus Data Logger 9. 24 Click on the SRPLogger node. 10. Click on the Cable Type field to pop up the Cable Type form and select the RFA cable. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
25 SmartReader Plus Data Loggers Click OK. Block Size The Block size you use depends on the buffer size of your modem minus the overhead of the logger, which is 14. For example, if your RF modem has a block size of 256, then a reasonable value for the Block size would be 240. 11. Click on the Block Size field to pop up the Block Size form and enter in the value. Click OK.
SmartReader Plus Data Logger 1.3 26 SmartReader Plus 1 Temperature Logger The SmartReader Plus 1 is an easy-to-use logger for recording temperature in a wide range of applications such as HVAC testing/balancing, property management studies, and transportation of perishable goods. Figure 1-1: SmartReader Plus 1 1.3.1 Description The SmartReader Plus 1 has an on-board thermistor temperature sensor and an external temperature sensor channel for remote measurements with an optional probe. 1.3.
27 SmartReader Plus Data Loggers Other Applications For information on how you can monitor resistance or switch status with your SmartReader Plus 1, refer to Appendix A Monitoring Resistance and Switch Status. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
SmartReader Plus Data Logger 1.4 28 SmartReader Plus 2 Temperature & Relative Humidity Logger A self-contained "air-quality" logger, the SmartReader Plus 2 can be used easily in a wide variety of applications to collect temperature and relative humidity data. Figure 2-1: SmartReader Plus 2 1.4.1 Description The SmartReader Plus 2 includes an on-board thermistor temperature sensor and a plug-in RH Sensor plus two input channels for an optional remote temperature and relative humidity probe.
29 SmartReader Plus Data Loggers 0 Internal Temperature 45 1 Internal Relative Humidity 71 2 External Temperature Appendix C 3 External Relative Humidity 71 NOTE: When you activate either RH channel, you must also enable its corresponding temperature channel, as well, in order to temperature compensate the RH sensors.
SmartReader Plus Data Logger 30 Figure 2-2: EH-020A Connection The EH-020A is applicable for measurements between -20 and 40°C (-4 and 104°F) and 10 to 90% RH. The accurate measurement of temperature and humidity depends primarily on the information supplied by a particular sensor. SmartReader Plus 2 data loggers use temperature and humidity sensors with rugged qualities designed for minimal or no maintenance (under normal operating conditions).
31 SmartReader Plus Data Loggers That is because the body readily gives off heat and moisture that is especially noticeable at lower RH levels. · The time taken between slinging the psychrometer and reading it can exhibit several degrees of inaccuracy in the wet bulb reading. Air currents around the body, whether it is slung in the shade of a building or in sunlight, not knowing how to tie the wet sock, its condition, and the purity of water used, all contribute to error.
SmartReader Plus Data Logger 32 decrease the speed of response. Chemical Tolerances: Limits for different chemical groups 1. Organic solvents typically 1,000...10,000 ppm 2. Corrosive agents (strong acids S02, H2SO4, Cl2, HCl, H2S etc.) typically 1...10 ppm 3. Weak acids typically 100...1,000 ppm 4. Bases typically 10,000...100,000 ppm Specifications are subject to change without notice. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
33 1.5 SmartReader Plus Data Loggers SmartReader Plus 3 Current, Voltage and Temperature Logger The SmartReader Plus 3 is a versatile equipment performance logger. It monitors and records AC current and voltage. Figure 3-1: SmartReader Plus 3 1.5.1 Description The SmartReader Plus 3 has four current-monitoring channels, three 0-5 VDC inputs for connection to AC voltage transducers, and one internal thermistor temperature channel.
SmartReader Plus Data Logger 1.5.2 34 Setup to Measure Current The procedure for setting up your SmartReader Plus 3 is as follows: 1. Connect one or more current probes, specified above, to the current channel inputs on your SmartReader Plus 3. Make sure to observe polarity when making connections. Connect the current probe's red (+) wire to the channel's "+ Red" input. Connect the current probe's black wire to the channel's "- Black" input. Figure 3-2: Current Probe Connection 2.
35 SmartReader Plus Data Loggers 7 Current 4 64 A60FL / A65FL Switch Range Equation 5 0.5 to 5 A 63 25 2.5 to 25 A 64 100 10 to 100 A 65 250 25 to 250 A 66 A70FL / A75FL Switch Range Equation 10 1 to 10 A 67 50 5 to 50 A 68 250 25 to 250 A 69 500 50 to 500 A 70 Precautions 1. DANGER: High voltage may be present! Do not clamp a current probe around a conductor without the logger connected to it. This avoids sparking and prevents the connectors from prematurely deteriorating.
SmartReader Plus Data Logger 1.5.4 36 Current Probes and Accessories Each SmartReader Plus 3 has four pairs of input connections for use with the Current Probes from Amprobe Instruments. These clamps can be used with a number of accessories to fit most typical applications. Low Currents To log very low currents (such as monitoring the operation of electrical appliances), the probe can be used with a Line Splitter.
37 1.5.6 SmartReader Plus Data Loggers Troubleshooting The SmartReader Plus 3 seems to give wrong readings. What is wrong? · If the graphs seem incorrect, check the equation number assigned to the graph file. This equation number must correspond to the model number and setting of the current probe used. Refer to Setup in this chapter for a table of equations to use with the various current probes and settings.
SmartReader Plus Data Logger 1.6 38 SmartReader Plus 4 Pressure, Temperature and RH Logger The SmartReader Plus 4 is a general purpose logger that can monitor pressure, temperature and in some models, relative humidity. Figure 4-1: SmartReader Plus 4 1.6.1 Description There are two models of the SmartReader Plus 4 data logger: · The Standard Model.
39 SmartReader Plus Data Loggers · The Low Pressure Model. This model has an internal pressure channel with 0 to 10" water column sensor and an internal temperature sensor. 1.6.2 Setup Using the Standard Pressure Channel 1. If you are going to measure pressure, you will need the appropriate fittings to tie into the system or equipment you intend to monitor. 2. Use TrendReader software to enable the pressure channel. Then assign the correct pressure equation for the model you are using.
SmartReader Plus Data Logger 40 and humidity channels. To connect the EH-020A probe to your SmartReader Plus 4, follow instruction notes packed with each RH probe set -- see Figure 4-2. Remote Thermistor Temperature Probe You can monitor temperature remotely using an ET series temperature probe with your SmartReader Plus 4 by connecting the probe's two wires to the Temperature and Common terminals. Make sure the External Temperature channel is activated and the proper equation is selected. 1.6.
41 1.6.4 SmartReader Plus Data Loggers Specifications The following specifications apply to the pressure sensors used in the SmartReader Plus 4: Type: Silicon piezoresistive strain gauge Max. Pressure: 4 x FS Media: Noncorrosive gases and dry air Temp. Range: Operating: Compensated: -40 to 70°C (-40 to 158°F) 0 to 70°C (32 to 158°F) Accuracy: 0.5% FS @ 25°C (77°F) Thermal: 10" H20 5 PSI 30 PSI 100 PSI over Compensated Range ±3% FS ±1.5% FS ±0.5% FS ±0.
SmartReader Plus Data Logger 1.7 42 SmartReader Plus 4 Low Pressure Differential and Temperature Logger The SmartReader Plus 4 is a logger that can monitor low gauge and differential pressures and temperature. Figure 4-3: SmartReader Plus 4 Low Pressure Differential 1.7.1 Description The SmartReader Plus 4 LPD is a two-channel data logger with internal pressure and temperature sensors. The low-pressure sensor is built into the logger and is capable of measuring low gauge and differential pressure. 1.
43 SmartReader Plus Data Loggers TrendReader guide for more information.) 5. 1.7.3 Save the new setup. SRP4 LPD Pressure Specifications Type: Silicon piezoresistive strain gauge Max. Pressure: Four times full scale Media: Non-corrosive gases and dry air Temp. Range: Operating: Compensated: -40 to 70°C (-40 to 158°F) 0 to 70°C (32 to 158°F) Thermals Accuracy: ±0.5% FS (over compensated range) Nonlinearity: ±0.05% FS (best fit straight line) Hysteresis and Repeatability: ±0.
SmartReader Plus Data Logger 1.8 44 SmartReader Plus 5 Thermocouple Logger The SmartReader Plus 5 Thermocouple Logger can monitor and record temperatures from J, K, T, S or E type thermocouples. Figure 5-1: SmartReader Plus 5 1.8.1 Description The SmartReader Plus 5 has two external thermocouple temperature channels and one internal thermistor channel.
45 SmartReader Plus Data Loggers other (positive) wire to the "+" terminal. The following table lists the ANSI color code for the thermocouple wires: Thermocouple Type Positive (+) Wire Negative (-) Wire J White Red K Yellow Red T Blue Red S Black Red E Violet Red Figure 5-2: SmartReader Plus 5 Thermocouple Connection 2. Connect the logger to your computer and run TrendReader. Select the equation number for each active thermocouple channel (refer to the Specifications section). 3.
SmartReader Plus Data Logger 1.8.4 46 Specifications Accuracy: ±0.5% of range plus resolution Thermocouple Range Resolution Equation J -50 to 600°C (-55 to 1100°F) 0.30°C (0.55°F) 50 K -100 to 1150°C (-145 to 2100°F) 0.50°C (0.90°F) 52 T -200 to 400°C (-325 to 750°F) 0.40°C (0.75°F) 54 S 0 to 1450°C (32 to 2642°F) 1.0°C (1.8°F) 74 E -50 to 680°C (-58 to 1250°F) 0.24°C (0.44°F) 90 Specifications are subject to change without notice. 1.8.
47 1.9 SmartReader Plus Data Loggers SmartReader Plus 6 Thermocouple Logger The SmartReader Plus 6 Thermocouple Logger can monitor and record temperatures from J, K, T, S or E type thermocouples. Figure 6-1: SmartReader Plus 6 1.9.1 Description The SmartReader Plus 6 has seven external thermocouple temperature channels and one internal thermistor temperature channel for cold-junction compensation. 1.9.
SmartReader Plus Data Logger 1.9.3 48 Use 1. Connect a J, K, T, S or E type thermocouple to one or more channels. Make sure that you observe polarity when making connections. To do this, connect a thermocouple's negative wire (usually red) to the "-" terminal of the channel you want to use. Connect the other (positive) wire to the "+" terminal.
49 1.9.5 SmartReader Plus Data Loggers Manual Calibration A simple way to manually adjust the calibration values on a SmartReader Plus 6 thermocouple logger follows. For each active channel: 1. Install the thermocouple and set the proper equation number for that thermocouple type. Set the TrendReader software into Realtime mode. 2.
SmartReader Plus Data Logger 1.10 50 SmartReader Plus 7 Process Signal Logger A multi-channel, multi-purpose logger, the SmartReader Plus 7 provides a versatile means of logging a wide variety of measurement signals. It features seven input channels configured for easy interface with common transducer and transmitter outputs. Figure 7-1: SmartReader Plus 7 1.10.
51 SmartReader Plus Data Loggers 2. Determine what sensors, transducers or transmitters you need to do the job (if not already present). Compatible transducers for monitoring temperature, relative humidity, pressure, speed, and many more variables are available through a wide variety of vendors (see Selecting Transducers and Transmitters). 3. Modify the channels externally (using resistors), if required, for maximum resolution (see Customizing Input Ranges). 4.
SmartReader Plus Data Logger 52 Avoiding Ground Loops Take special care to avoid ground loop problems when you use your SmartReader Plus 7. A ground loop can occur when there is more than one path to ground in your logger-transducer circuit. Ground loops can damage your SmartReader Plus 7 as well as your transducers. To avoid ground loop problems in your SmartReader Plus 7 circuit: 1. Do not use more than one grounded power supply to excite your transducers. 2.
53 SmartReader Plus Data Loggers 1.10.4 Customizing Input Ranges The standard input ranges on the SmartReader Plus 7 should be suitable for most process signal applications but occasionally you may require measurement of non-standard input levels where resolution is a primary concern. Ranges can be adapted easily by using either one or two external resistors. TrendReader software has Equation functions that can be used to scale the data to the new input levels.
SmartReader Plus Data Logger 54 Since you will not always be able to get the exact resistor value that you calculated, you can determine the logger's actual input range by plugging the value of the resistor (R) you obtain back into the equation. For example, if the closest resistor you could obtain was 1.05M ohms, then the actual voltage input range would be: Ein = (R + 1,020,000) / 102,000 (1,050,000+1,020,000) / 102,000 = 20.
55 SmartReader Plus Data Loggers marked "10k" must be 10,000 ohms ±1% or better. Figure 7-4: Modified 200mV Channel The value of the resistor (R) and final Range can be calculated with the following equations: R = 40,000 x Ein - 10,000 Ein = (R + 10,000) / 40,000 25mA Channel The 25 milliamp channel can be modified to span higher ranges (greater than 25mA DC) by adding a single resistor across the input terminals as shown in Figure 7-5.
SmartReader Plus Data Logger 56 power rating greater or equal to 0.1 watts. Therefore, a quarter watt resistor will do fine. Figure 7-5: Modified 25mA Channel You can also modify the 200mV channel to log current loop signals with greater sensitivity than the two 25 mA channels. Put a 100 ohm resistor across the "200mV" and "Common" terminals and you will be able to log currents from 0 to 2.0mA with approximately ten times the resolution of the 25mA channels.
57 SmartReader Plus Data Loggers Orange 3 Yellow 4 Green 5 Blue 6 Violet 7 Grey 8 White 9 Gold 5% J Silver 10% K None 20% WARNING: Using resistors with tolerances looser than 1%, poor temperature coefficients and long-term drift characteristics will create undesirable measurement errors. 1.10.5 Selecting Transducers and Transmitters A transducer is defined as a device that receives energy from one system and retransmits it, in a different form, to another system.
SmartReader Plus Data Logger 58 impedance. This simply refers to how much resistance your instrumentation (for example, the SmartReader Plus 7) can have before it will begin to cause problems. For voltage inputs, a very high impedance is usually required (greater than 10k ohms). This prevents the unnecessary draining of current from the transducer circuit. The SmartReader Plus 7's voltage inputs are all high impedance (greater than 1M ohms).
59 SmartReader Plus Data Loggers Overload Protection: Voltage channels: ±40V Current channels: ±70mA (both are reverse-polarity protected) Transducer Restrictions: The use of one power supply common only is recommended to avoid ground loops or use loop isolators. Specifications are subject to change without notice. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
SmartReader Plus Data Logger 1.11 60 SmartReader Plus 8 Eight-Channel Temperature Logger The SmartReader Plus 8 is a versatile logger for recording temperatures in a wide range of environmental and industrial applications. It can record up to eight temperature channels simultaneously. Figure 8-1: SmartReader Plus 8 1.11.1 Description The SmartReader Plus 8 has seven external temperature channels (for remote temperature probes) and one internal thermistor sensor. 1.11.
61 SmartReader Plus Data Loggers any Common terminal. Figure 8-2: Connecting External Temperature Probes Accessories The ET Series Temperature sensors are thermistor probes that can be used easily with your SmartReader Plus 8 for remote temperature measurements.
SmartReader Plus Data Logger 1.12 62 SmartReader Plus 9 Pulse Logger The SmartReader Plus 9 is a two-channel multi-purpose counter and logger. With it you can monitor a wide variety of measurement parameters. Figure 9-1: SmartReader Plus 9 1.12.1 Description Featuring two input channels configured for easy interface with common switch and transducer outputs, the SmartReader Plus 9 has the capability to count and record voltage pulses and switch contact closure frequency.
63 SmartReader Plus Data Loggers instead of the logger supplying the voltage potential, the logger detects the voltage level of the pulse. The pulse must have a low level voltage less than 0.5 volts DC and the high level voltage must be from 4.5 to 24 volts DC. The minimum pulse length and minimum interval between pulses must be 2 milliseconds for the slow input and 10 microseconds for the fast input.
SmartReader Plus Data Logger 64 >4.0K for Vin>5V Min. Pulse Width 50% Duty Cycle: Slow input:2 milliseconds Fast input:10 microseconds Restrictions: Maximum frequency over sample interval must not exceed channel range (the total count will stop at 4095) Connections: Removable screw-type terminal strip Switch Inputs Input-type: Uncommitted "dry" contacts (relay or switch) Excitation: 5 microamps contact current 3.
65 1.13 SmartReader Plus Data Loggers SmartReader Plus 10 RTD Temperature Logger The SmartReader Plus 10 is a temperature logger with four channels: an internal thermistor channel and three external channels specifically designed for use with RTD (Resistance Temperature Detector) temperature probes. Figure 10-1: SmartReader Plus 10 1.13.1 Description Two, three, and four-wire RTDs may be used with the SmartReader Plus 10, however, four-wire RTDs produce the highest accuracy.
SmartReader Plus Data Logger For the internal channel, use equation 45 For the 100 ohm probes, use equation 86 For the 1000 ohm probes, use equation 87 For results in resistance (ohms): For the internal channel, use equation 45 For the 100 ohm probes, use equation 84 For the 1000 ohm probes, use equation 85 NOTE: Even equation numbers are for 100 W probes and odd equation numbers are for 1000 W probes. 4. 1.13.3 Adjust the remaining setup options as desired then save the setup.
67 1.14 SmartReader Plus Data Loggers Conservation Logger Temperature, RH and 5V Input Logger The Conservation Logger is a self-contained temperature and relative humidity logger with two external channels for use with a variety of sensors. Figure 11-1: Conservation Logger 1.14.1 Description The Conservation Logger is designed to monitor temperature and humidity (internal or external) and determine if the readings measured are out of tolerance based on preset thresholds.
SmartReader Plus Data Logger 1.14.2 68 Setup Make sure to enable each channel you want to use. If you are not using a channel, disable it in order to save memory. Channel Description Equation 0 Internal Temperature 45 1 Internal Relative Humidity 71 2 External 5VDC 18 3 External 5VDC 18 NOTE: When you activate the RH channel, you must also enable its corresponding temperature channel, as well, in order to temperature compensate the RH sensors.
69 SmartReader Plus Data Loggers Interchangeable replacement RH sensors for loggers are available through your dealer. For best accuracy, it is recommended these be calibrated together with the logger - consult your ACR representative for price and availability of this service. 1.14.5 Troubleshooting If you are getting what appear to be wrong readings, consider the following before recalibrating the sensors. Sensors sample the atmosphere (or medium) in the immediate vicinity of the sensors themselves.
SmartReader Plus Data Logger 70 Range: 0 to 95% RH Accuracy: ±3% RH from 10 to 90% (-20 to 40°C [-4 to 104°F]) Resolution: Better than 0.04% RH between 25 and 60% RH at 25°C (77°F) Environmental Conditions: The RH sensor is relatively immune to chemical contamination but when exposed to extreme environmental conditions, accuracy degradation could result.
71 1.15 SmartReader Plus Data Loggers APPENDIX A Monitoring Resistance and Switch Status Monitoring Resistance and Switch Status 1.15.1 Measuring Resistance You can also use your SmartReader Plus 1, 2, 4 and 8 model loggers to monitor resistance, instead of just temperatures. This capability allows you to monitor devices other than just thermistors (for example, potentiometers, level indicators or any other device that varies resistance in accordance with a known parameter).
SmartReader Plus Data Logger 72 TrendReader software. Figure A-1: Monitoring Switch Status When monitoring the status of a switch with your data logger, keep in mind that the logger will not detect more than one change per sample period. For this reason, use a fast sample rate if you expect the switch to open and close frequently.
73 1.16 SmartReader Plus Data Loggers APPENDIX B Temperature and Relative Humidity Calibration Temperature and Relative Humidity Calibration 1.16.1 Temperature and Relative Humidity Calibration This chapter provides instructions on how you can recalibrate your RH modules, EH-020A External Temperature and Relative Humidity probes and any thermistor temperature probes. 1.16.
SmartReader Plus Data Logger 74 4. Insert the thermometer and the thermistor probes into the bucket ensuring that they do not touch the side or bottom of the bucket. Make sure the thermistor probes' leads are long enough for you to easily take resistance readings. 5. Cover the bucket with foam chips or another suitable insulating material. Let sit for at least five minutes while the temperature stabilizes and the thermistor has a chance to respond.
75 SmartReader Plus Data Loggers place in refrigeration chamber of known temperature. For 25°C, place logger in insulated box at a known temperature close to 25°C. For 60°C, place the logger in a watertight bag and place in a warm water bath of known temperature. For all the rest, let the logger sit for about 2 hours to acclimatize. Record the times and the known temperature for each. 4. Download the logger After the tests are done, download the logger and graph the data.
SmartReader Plus Data Logger 1.16.3 76 Relative Humidity Calibration If you want to confirm the calibration of your RH sensor or EH-020A Temperature and Relative Humidity probe, you can simply return it to your authorized sales representative or perform your own field test using the special adjustment provisions in TrendReader software. Recommended methods of calibration include using an accurate relative humidity test chamber or by mixing saturated salt solutions.
77 SmartReader Plus Data Loggers 13. If the results are satisfactory, save the calibration changes to the logger (remember to set the RH channel's equation number back to 71). Saturated Salt Test Using saturated salt solutions is the most accurate field technique for RH calibration.
SmartReader Plus Data Logger 78 4. Place the logger with sensor or EH-020A module into the jar containing the LiCl solution (RH = 11%) overnight to eliminate any hysteresis effects. 5. Quickly insert the logger (or module) into the next solution by swapping the lids. Transfers should always be made in the direction of higher RH conditions. The jar should be well sealed. Allow at least two hours to get within three percent of the equilibrium RH. Repeat for next solution. Salt MgCl2 NaCl RH 33% 75% 6.
79 1.17 SmartReader Plus Data Loggers APPENDIX C Thermistor Temperature Probes Thermistor Temperature Probes 1.17.1 Thermistor Temperature Probes The SmartReader Plus 1, 2, 4 and 8 data loggers can record temperature from a wide variety of external thermistor temperature probes. You can use the standard thermistor probes ACR makes available or you can use your own. 1.17.2 What are Thermistors? Thermistors are temperature-sensitive resistors.
SmartReader Plus Data Logger 80 ranges in order to maximize measurement accuracy and resolution. In addition, some thermistor probes are constructed to accommodate special environmental or application conditions. There are six different types of ET Series Temperature Probes available that cover a wide range of operation. · ET-016 General Purpose Temperature Probe is best suited for general purpose temperature measurements centered on ambient room temperature.
81 SmartReader Plus Data Loggers Extending Cable Lengths If you find the standard length of your ET Series Temperature Probe cable is not long enough for your intended application, you can extend the cable yourself up to 30m (100ft). Use 2-conductor 22-gauge shielded wire. To prevent measurement errors, make sure the connections are properly insulated and well protected from moisture. Applications The ET Series Temperature Probes lend themselves to a wide range of applications.
SmartReader Plus Data Logger 82 red and black leads are stripped and tinned. Figure C-1: ET-016 Probe Resolution ET-016: Extended exposure to temperatures above 70°C may result in permanent resistance drift, resulting in loss of ±0.2°C tolerance over the 0 to 70°C temperature range. Extended exposure to temperatures below 0°C may result in some mechanical damage due to thermal contraction effects.
83 SmartReader Plus Data Loggers and black leads are stripped and tinned. Figure C-2: ET-004 Probe Resolution ET-081 High Temperature Probe Description: NTC thermistor and cable potted into the end of a 22mm (7/8") long by 5mm (3/16") diameter nickel-plated eyelet. R25 Value: 100k ohms Equation: 47 Range: 10 to 170°C (50 to 335°F) Max. Temp.: 190°C (375°F) Resolution: Refer to Figure C-3 Accuracy: ±0.5°C (0.
SmartReader Plus Data Logger 84 wire; red and white leads are stripped and tinned. Figure C-3: ET-081 Probe Resolution ET-086 Oven Temperature Probe Description: NTC thermistor and cable potted into the end of a 22mm (7/8") long by 5.5mm (7/32") diameter nickel-plated eyelet. R125 Value: 26,266 ohms Equation: 48 Range: 70 to 255°C (155 to 490°F) Max. Temp.: 275°C (525°F) Resolution: Refer to Figure C-4 Accuracy: ±1°C (1.
85 SmartReader Plus Data Loggers tinned. Figure C-4: ET-086 Probe Resolution 1.17.6 Resistance vs. Temperature Tables The following table lists the Resistance vs. Temperature characteristics of the ET series thermistor probes as they relate to use with the SmartReader Plus 1, 2, 4 and 8 loggers. For each thermistor probe model the table documents the complete set of temperature readings and corresponding thermistor resistances possible for the logger's eight most significant bits.
SmartReader Plus Data Logger Table C-1: Temperature-Resistance Values for ET Series Probes Copyright © 2010 ACR Systems Inc. All Rights Reserved.
87 SmartReader Plus Data Loggers Copyright © 2010 ACR Systems Inc. All Rights Reserved.
SmartReader Plus Data Logger Copyright © 2010 ACR Systems Inc. All Rights Reserved.
89 SmartReader Plus Data Loggers Copyright © 2010 ACR Systems Inc. All Rights Reserved.
SmartReader Plus Data Logger 1.17.7 90 Custom Probes Obtaining thermistors through specialty suppliers allows you wider flexibility in the number of possible probe assemblies for your specific applications. That way, if you have a special surface, penetration, pipe well or immersion sensing applications, you can usually get off-the-shelf or even custom probes to suit. Contact your dealer for recommendations.
91 1.18 SmartReader Plus Data Loggers APPENDIX D Typical SmartReader Plus 3 Connection Diagram Typical SmartReader Plus 3 Connection Diagram 1.18.1 AC Current and AC Voltage Recording ACR Systems stocks voltage transducers. These devices connect directly to AC voltage sources, and produce a linear output of 0-5V DC directly proportional to the input voltage. They are average-sensing transducers calibrated to indicate the RMS voltage.
SmartReader Plus Data Logger 1.18.2 AC Voltage Transducer Specifications Voltage Input Single phase 3-phase Nominal: 120V 480V Range: 0-150V 0-600V Overload Continuous: 180V 600V Burden per Element: 2.5VA at 120V 2.5VA at 480V Rated Output (RO): 0-5VDC Can be changed to 0-1mA by removing the 5k ohms resistor Accuracy: ±(0.15% Reading + 0.1% RO) Temp Effect on Accuracy: Load with 0-1mA Output: ±0.01% / °C 0-10,000 ohms Load with 0-5VDC Output: 5M ohms minimum Output Ripple Peak: < 0.
93 SmartReader Plus Data Loggers 3588-2-RS: 4.4"W x 3.8"D x 4.7"H (112 x 97 x 119mm) Figure D-2: 120V Voltage Transducer Figure D-3: 480V Voltage Transducer Copyright © 2010 ACR Systems Inc. All Rights Reserved.
SmartReader Plus Data Logger 1.19 94 APPENDIX E Sample Rates Sample Rates 1.19.1 How a Data Logger Stores Readings The sample rate of your data logger is the frequency with which it stores readings in its memory. A selected sample will apply for all channels on a SmartReader Plus. If you set your data logger's sample rate to eight seconds, it reads its input channels and stores the readings once every eight seconds.
95 SmartReader Plus Data Loggers 2 sec. 0 11 56 40 5 sec. 1 5 51 40 8 sec. 1 23 46 40 20 sec. 4 23 26 40 1 min. 14 22 20 0 2 min. 29 20 40 0 5 min. 74 15 40 0 10 min. 149 7 20 0 30 min. 447 22 0 0 1 hr. 895 20 0 0 2 hrs. 1791 16 0 0 4 hrs. 3583 8 0 0 Table F-2: SmartReader Plus-32K Sample Rate Table - Two Channels Enabled Sample Rate Days Hours Minutes Seconds 0.04 sec. 0 0.1 sec. 0 0 7 10 0 17 55 0.2 sec. 0 0 35 50 0.5 sec.
SmartReader Plus Data Logger 0.1 sec. 0 0 11 56 0.2 sec. 0 0 23 53 0.5 sec. 0 0 59 43 1 sec. 0 1 59 26 2 sec. 0 3 58 53 5 sec. 0 9 57 13 8 sec. 0 15 55 33 20 sec. 1 15 48 53 1 min. 4 23 26 40 2 min. 9 22 53 20 5 min. 24 21 13 20 10 min. 49 18 26 40 30 min. 149 7 20 0 1 hr. 298 14 40 0 2 hrs. 597 5 20 0 4 hrs.
97 SmartReader Plus Data Loggers Table F-5: SmartReader Plus-32K Sample Rate - Five Channels Enabled Sample Rate Days Hours Minutes Seconds 0.04 sec. 0 0 2 52 0.1 sec. 0 0 7 10 0.2 sec. 0 0 14 20 0.5 sec. 0 0 35 50 1 sec. 0 1 11 40 2 sec. 0 2 23 20 5 sec. 0 5 58 20 8 sec. 0 9 33 20 20 sec. 0 23 53 20 1 min. 2 23 40 0 2 min. 5 23 20 0 5 min. 14 22 20 0 10 min. 29 20 40 0 30 min. 89 14 0 0 1 hr. 179 4 0 0 2 hrs.
SmartReader Plus Data Logger 2 hrs. 298 14 40 0 4 hrs. 597 5 20 0 Table F-7: SmartReader Plus-32K Sample Rate - Seven Channels Enabled Sample Rate Days Hours Minutes Seconds 0.04 sec. 0 0 2 2 0.1 sec. 0 0 5 7 0.2 sec. 0 0 10 14 0.5 sec. 0 0 25 35 1 sec. 0 0 51 11 2 sec. 0 1 42 22 5 sec. 0 4 15 57 8 sec. 0 6 49 31 20 sec. 0 17 3 48 1 min. 2 3 11 25 2 min. 4 6 22 51 5 min. 10 15 57 8 10 min. 21 7 54 17 30 min.
99 SmartReader Plus Data Loggers 5 min. 9 7 57 30 10 min. 18 15 55 0 30 min. 55 23 45 0 1 hr. 111 23 30 0 2 hrs. 223 23 0 0 4 hrs. 447 22 0 0 Copyright © 2010 ACR Systems Inc. All Rights Reserved.
SmartReader Plus Data Logger 1.20 100 APPENDIX F Connecting Multiple Loggers Connecting Multiple Loggers 1.20.1 Network Configurations SmartReader Plus data loggers can be connected in three network configurations: · the Basic Network · the Modular Network · the Shielded Network The Basic Network can accommodate up to three loggers and a total cable length of 100 feet (30m). The Modular and Shielded Networks can accommodate up to ten loggers and a total cable length of 1000 feet (300m).
101 1.20.2 SmartReader Plus Data Loggers Basic Network The Basic Network accommodates a maximum of three loggers. Figure G-1: Basic SmartReader Plus Network 1. Insert Y-adaptor cables (YA-200) into each logger except the last one on the network. 2. Connect the first logger to your computer (or remote modem) using the IC-101 interface cable. If you are connecting to a modem, refer to the TrendReader guide for information on how to set up a modem. 3.
SmartReader Plus Data Logger 1.20.3 102 Modular Network The Modular Network accommodates a maximum of ten loggers. Figure G-2: Modular SmartReader Plus Network 1. Insert a Y-adaptor cable (YA-200) into the last logger on the network. 2. Insert a Modular Y-adaptor (YA-201) into: 3. · the plug portion of the IC-101 Interface Cable · each logger except the last one on the network · one end of the last logger's Y-adaptor cable Cut and crimp the Modular Flat Cable.
103 1.20.4 SmartReader Plus Data Loggers Shielded Network The Shielded Network accommodates a maximum of ten loggers. Figure G-3: Shielded SmartReader Plus Network 1.20.5 1. Insert Y-adaptor cables (YA-200) into each logger on the network. 2. Connect the IC-101 Interface Cable to the first logger. 3. Connect all the loggers to each other, using shielded cable. 4. Connect the Network Power Supply (PS-201) to the last logger using the available end of the Y-adaptor cable. 5.
SmartReader Plus Data Logger 104 1. Slow the baud rate. 2. Use the PS-201 Power Supply connected to the last logger on the network, or anywhere along the line, wherever the lone voltage may sag below 4.5VDC. 3. Reroute the cable (to avoid electrical interference). 4. Use shielded cable. Copyright © 2010 ACR Systems Inc. All Rights Reserved.
105 SmartReader Plus Data Loggers Index -S- -A- SmartReader Plus Sample Rates 94 AC Current 91 Alarms 8 AC Voltage Approvals 1 Transducer 33, 91 Calibration 8 Channel Alarms 21 -C- Channel Calibration 21 Calibration 73 Channel Information 19 Connecting Multiple Loggers 100 Channels 8, 19 Count 62 Data Logger 1 Current 50 Description 1 Probe 33 -DData Logger 1 -EEH-020A 28, 38, 42, 73 ET Series ET-004 Low Temperature Probe 79 ET-016 General Purpose Probe 79 ET-081 High Temperature Pr
Index Thermocouple E Type 44, 47 J Type 44, 47 K Type 44, 47 S Type 44, 47 T Type 44, 47 Transducer 50 Transmitter 50 -VVoltage 33, 50 Copyright © 2010 ACR Systems Inc. All Rights Reserved.
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