Owners manual V2.
CONTENTS & WARRANTY This user manual is a guide for the H-3553. For more information, updated manuals, brochures, technical notes, and supporting software on the H-3553, please refer to waterlog.com/3553 or contact your sales representative. For additional assistance, please contact us at +1.435.753.2212 or sales@waterlog.com WaterLOG® Warranty..................................................1 Chapter 1: Introduction...............................................2 Bubbler Features.........................
Contents & Warranty “WATERLOG™ PRODUCTS MANUFACTURED BY YELLOW SPRINGS INSTRUMENTS CO., INC. are warranted by Yellow Springs Instruments Co., Inc. (“YSI”) to be free from defects in materials and workmanship under normal use and service for twelve (12) months from date of shipment unless otherwise specified in the corresponding YSI pricelist or product manual. WaterLOG™ products not manufactured, but that are re-sold by YSI, are warranted only to the limits extended by the original manufacturer.
01 / 2 INTRODUCTION
Introduction The WaterLOG® H-3553/ Pressure Sensor is well known for its compact size and combination of a Bubbler and built-in pressure sensor. The H-3553 has also been referred to as a self-contained “smart” gas purge system, because it produces a precision constant mass flow of gas. Designed to measure fluid levels in surface water, ground water and tanks, the H-3553 Modbus or Auto mode is enabled it will enter the RS-232 menu with any character sent to this port.
02 / 4 GETTING STARTED
Getting Started Before installation, setup and operation of the H-3553 in the field, read through this section for a general overview of what you have and how to use it. What’s in the Box When unpacking your H-3553, make sure all the components ordered are received and undamaged from shipping.
GETTING STARTED Product Description It is important to familiarize yourself with the connections before installing a product at the site. Below are standard connections found on the H-3553.
Getting Started Using the Display The H-3553s display has a ‘Read’ button that when pressed will cause the unit to initiate a new measurement and update the display. Measurement requests from an attached SDI-12 data logger will also cause the display to update. If the ‘Read’ button is pressed and held until the display starts flashing, the Adjust screw may be turned to increase or decrease the current stage value.
03 / 8 INSTALLATION
Installation The WaterLOG® H-3553 is a system with a fully integrated digital pressure transducer specifically designed for water level monitoring. The H-3553 directly measures dry gas over a broad temperature range. WARNING! Before proceeding with the installation, please consider the following site preparation steps to help prevent problems later. Water Depth Table 3-1 shows the maximum pressure to which the H-3553 is factory calibrated to measure.
GETTING STARTED the line not related to the water depth. The line should be installed in an area where the flow of water will remain relatively calm as compared to the real stage changes. Here are a few Do’s and Do not’s on mounting the line. Do: • Mount the outlet in still water. • Mount the outlet so the last inch or so is almost horizontal, (slightly downward side exit). • Try to prevent swells in long runs of orifice line (upward then downward sections). • Use a muffler in more turbulent waters.
04 / SETUP & OPERATION 11
SETUP & OPERATION There are three ways to setup and operate the H-3553, through the RS-232 menu interface, the SDI-12 interface, and through the XL series DCP menu interface. Setup through the XL series DCP menu is not discussed in this manual but is discussed in the XL series manual. This chapter will focus on setup using the RS-232 menu interface and the SDI-12 interface.
Setup & Operation SDI-12 Interface The SDI-12 interface is another way to setup and operate the H-3553. The H-3553 supports all standard SDI-12 commands and uses some SDI-12 extended (manufacturer specific) commands for setup operation. SDI-12 standard and extended commands are normally sent from a SDI-12 master device, like the Waterlog XL series DCP. Table 4-2 is a list of the standard SDI-12 commands and the extended SDI-12 commands for setting up the H-3553.
SETUP & OPERATION Default Setup The H-3553 has many settings that can be change. However, the default setups will normally cover most applications. Table 4-3 shows the default settings for the H-3553. Table 4-3: H-3553 Default Setup Setting SDI-12 Address Stage Units Default Setting Setting Range 0 0-9 (Standard), A-Z, a-z Feet (Slope = 2.3067) Ft, In, M, mm, Ft Dn, Usr Def Stage Offset SDI-12 Stage Digits RS-232 Stage Digits Averaging Time Bubble Rate Purge Pressure 0.
Setup & Operation SDI-12 The SDI-12 address of a sensor is its identifier on the SDI-12 data bus. The SDI-12 data bus is a one wire communication between normally one master device and one or more slave devices. The SDI-12 address makes it possible for the master device to communicate with each sensor individually. SDI-12 data collisions will occur when two or more sensors have the same address on the same data bus.
SETUP & OPERATION Note Table 4-7, the ‘a’ is the current SDI-12 address of the H-3553 and the ‘xxxx’/’x.xxx’ is the current units/ slope of the H-3553 and the ‘nnnn’/’n.nnn’ is the desired new units/slope. Table 4-7: Change the H-3553 Units / Slope H-3553 Combo Bubbler Setup Menu U - Units: xxxx Stage Units: [nnnn] SDI-12 Interface Command: aXWSn.nnn! Response: a0021 L - Slope: x.xxx Enter Slope Value: [n.nnn] Command: aXRS! Response: a0011 Command: aD0! Response: a + n.
Setup & Operation Stage Offset The stage offset is a value that is added to the final stage result after the slope/multiplier has been applied. The stage offset is normally used to obtain a final stage level relative to some reference point such as sea level. Writing the stage offset is not needed when using the set current stage option, because this option calculates and sets the stage offset automatically. The H-3553 stage offset default is 0.000.
SETUP & OPERATION Note: This averaging time does not take into account the time it takes to make an atmospheric reading. Therefore, always add about 4 more seconds to the averaging time to calculate how long the full measurement cycle can take.
Setup & Operation Bubble Rate The bubble rate is the average number of bubbles flowing Table 4-12: Bubble Rate vs. Response Time from the end of the orifice line per minute. The standard Bubble Rate Response for 1 Ft. Rise orifice line tubing that we recommend and calibrate the 30 bubbles/min 25 seconds bubble rate has 1/8 inch inner diameter (I.D.). If a different 60 bubbles/min 20 seconds size orifice I.D. is used the bubble rate will not be correct.
SETUP & OPERATION Purge The H-3553 has an option built in called purge, the purpose of the purge is to clear out any debris or silt from the end of the orifice line that could cause false pressure readings. When a purge is initiated the H-3553 makes a new measurement on the line and tank sensor and saves the values away just in case data is requested during the purge.
Setup & Operation ‘B’ key to enter the “Bubbler Settings” menu and then press the ‘P’ key, then enter in the desired purge pressure and press the ‘Enter’ key. To change the H-3553 purge pressure using the SDI-12 interface, send the “aXWPPnn!” SDI-12 extended command. The response should be “a0061”, which means that it could take 6 seconds to complete the command and then it will put 1 data value in the buffer. To check the new purge pressure, send “aXRPP!” command and wait the responded time.
SETUP & OPERATION Table 4-16: Change the H-3553 Purge Sustain H-3553 Combo Bubbler Setup Menu B – Bubbler Settings : SDI-12 Interface Command: aXWPSnn! Response: a0061 Bubbler Settings Menu S – Purge Sustain: xx Enter Purge Sustain (10 - 40) [ nn ] Command: aXRPS! Response: a0021 Command: aD0! Response: a + nn 4-20 Milliamp Output The H-3553 has the ability to output the stage value as a 4-20 milliamp signal.
Setup & Operation Table 4-17: Change the H-3553 4-20 Milliamp Min Stage H-3553 Combo Bubbler Setup Menu P – Advanced Options : SDI-12 Interface Command: aXWILn.nn! Response: a0021 Advanced Options Menu F – 4-20 mA Output : 4-20 mA Output Setup Menu N – Min Stage: x.xx Enter 4 - 20mA Min Stage [ n.nn ] Command: aXRIL! Response: a0011 Command: aD0! Response: a + n.nn 4-20 Milliamp Max Stage The 4-20 milliamp max stage value should be the highest the stage gets at the installed site.
SETUP & OPERATION Modbus Mode Enable The Modbus mode enable is the setting that determines whether the H-3553 will communicate with a Modbus master device. Modbus is an industry standard serial digital interface for interconnecting Programmable Logic Controllers (PLCs), intelligent sensors and other devices. The H-3553 can be used as a Modbus slave and has a serial RS-485 port for connecting to a Modbus compatible host device.
Setup & Operation RS-232 main menu, press the ‘P’ key to enter the “Advanced Options” menu. Then under the “Measurement Options” section press the ‘A’ key and the Auto mode enable will change to on. To change the H-3553 Auto mode enable using the SDI-12 interface, send the “aXWAE1!” SDI-12 extended command to enable or change the ‘1’ to a 0 to disable. The response should be “a0021” which means that it will take 2 seconds to complete the command and then it will put 1 data value in the buffer.
SETUP & OPERATION Table 4-21: Change the H-3553 Measure Rate H-3553 Combo Bubbler Setup Menu P – Advanced Options : SDI-12 Interface Command: aXWMRnnn! Response: a0021 Advanced Options Menu R - Measure Rate: xx Enter Measure Rate (0 - 255) [nnn ] Command: aXRMR! Response: a0021 Command: aD0! Response: a + nnn Test Display If the display seems to be displaying numbers incorrectly, the Test Display command can be used to verify the individual segments are working properly.
05 / MODBUS OPERATION 27
MODBUS OPERATION The H-3553 supports a Modbus client protocol interface. Modbus is an industry standard field bus for interconnecting Programmable Logic Controllers (PLCs), intelligent sensors and other devices. The H-3553 communicates Modbus via the RS-485 serial port connections; see Chapter 2 Table 2-1 for wiring connections. This chapter will focus on Modbus setup and operation using the RS-232 menu interface or the SDI-12 interface.
Modbus Operation Stage Offset Stage Slope 25 / “0019” 27 / “001B” 2 2 32 Bit Float 32 Bit Float *Stage 29 / “001D” 2 32 Bit Float *Pressure 31 / “001F” 2 32 Bit Float *Temperature 33 / “0021” 2 32 Bit Float *Control Battery *Tank Pressure 35/“0023” 37 / “0025” 2 2 32 Bit Float 32 Bit Float *Compressor Battery 39 / “0027” 2 32 Bit Float *Note: These registers are read only; there is no effect if written.
MODBUS OPERATION Baudrate Select Registers The Baudrate holding register allows the user to change the baud rate of the Modbus RS-485 serial port. Table 5-5 shows what the Modbus baudrate holding register should be set to get the desired baudrate. The H-3553 default baudrate is 9600. When the user changes the baud rate it does not take effect until the power is cycled. This register must be read and wrote as a short integer.
Modbus Operation Stage Slope Register The Stage Slope holding register allows the user to enter a user defined stage slope. Writing to this register is only applicable when the Stage Units Select Register is set to 06, which indicates the user defined mode for the units. The factory default slope is 2.3067, which is the slope for stage unit’s feet. See Chapter 4 – Stage Slope for more information. This holding register is a 32-bit holding register.
MODBUS OPERATION Example #2: Write Multiple Registers Command: Format: “aabbccccddddeeffffgggg” aa = 1 byte Modbus address Where: bb = 1 byte function code cccc = 2 byte start address dddd = 2 byte quantity of registers ee = byte count ffff = 2 byte data value gggg = 2 byte crc value Example: 011000010001022000BE41 32
This user manual is a guide for the H-3553. For more information, updated manuals, brochures, technical notes, and supporting software on the H-3553, please refer to waterlog.com/3553 or contact your sales representative. For additional assistance, please contact us at +1.435.753.2212 or sales@waterlog.
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