USB PT-104 Platinum RTD Converter User's Guide usbpt104.en-1 Copyright © 2010 Pico Technology Ltd. All rights reserved.
USB PT-104 User's Guide I Contents 1 Introduction .....................................................................................................................................1 1 Overview ...........................................................................................................................................1 2 Safety warnings ...........................................................................................................................................
USB PT-104 User's Guide 1 Introduction 1.1 Overview 1 The USB PT-104 is a four-channel, high-resolution temperature converter for use with PT100 and PT1000 type platinum resistance thermometers (PRTs). It can be used to measure temperature, resistance and voltage. In PT100, PT1000 and resistance modes, the unit can use a two, three or four-wire circuit. Four-wire measurement gives the greatest accuracy.
2 1.2 Introduction Safety warnings We strongly recommend that you read the general safety information below before using your product for the first time. If the equipment is not used in the manner specified then the protection provided may be impaired. This could result in damage to your computer and injury to yourself and others. DO NOT exceed the maximum input range. The USB PT-104 is designed to measure voltages in the range 0 to +2.5 V.
USB PT-104 User's Guide 1.3 3 Legal information The material contained in this release is licensed, not sold. Pico Technology grants a licence to the person who installs this software, subject to the conditions listed below. Access. The licensee agrees to allow access to this software only to persons who have been informed of these conditions and agree to abide by them. Usage. The software in this release is for use only with Pico products or with data collected using Pico products. Copyright.
4 Product information 2 Product information 2.1 Pack contents Your USB PT-104 pack (order code PP682) should contain the following items: 2.2 Quantity Reorder code Description 1 1 1 1 1 PP682 DO112 MI106 DI025 TA076 Platinum RTD data logger USB Installation Guide USB lead Software and Reference CD Ethernet patch cable Specifications Temperature Resistance Voltage Sensor PT100*, PT1000 N/A N/A Range -200 to +800 °C 0 to 375 * 0 to 10 kΩ 0 to 115 mV 0 to 2.
USB PT-104 User's Guide 2.3 5 Installing the driver The driver is installed automatically when you install the PicoLog software. Alternatively, you can download the driver from our website at http://www.picotech. com. 2.4 Connection: USB port To use the USB PT-104, connect its USB port to a USB port on your computer using the cable provided. The first time you connect the device, Windows will install the driver and then tell you that the device is ready for use.
6 2.5 Product information Connection: Ethernet port Setup utility Before connecting to the USB PT-104's Ethernet port, you must first configure the Ethernet settings. Proceed as follows: 1. 2. 3. 4. 5. 6. Connect the unit to your computer using the USB port. Run the Ethernet Settings utility. There is a shortcut to this utility in the Pico Technology program group under the Windows Start menu. Set the Device Types control to "PT-104 (USB)".
USB PT-104 User's Guide 7 Power-saving tip If you wish to stop using the USB PT-104 in Ethernet mode, you can use the Ethernet Settings utility to disable its Ethernet port. This reduces the power consumption of the device when used in USB mode. Ethernet and USB Do not use the USB PT-104 in USB mode when it is being powered by Power-over-Ethernet (PoE).
8 2.6 Product information Connection: PRT inputs The USB PT-104 is compatible with PT100 and PT1000 type platinum resistance thermometers (PRTs). Connect each one of these devices to the unit as follows.
USB PT-104 User's Guide 2.7 9 Setting up Set up the USB PT-104 as follows: 1. From the File menu in PicoLog Recorder, select New settings. The Recording dialog box appears: 2. Click OK. The Sampling Rate dialog box appears: 3. Click OK. The Converter details dialog box appears. 4. From the Converter type drop-down list, select either PT-104 (USB) or PT-104 (Ethernet). The dialog box will then show the converter list, as in the following examples: Copyright © 2010 Pico Technology Ltd.
10 Product information 5. USB connection: Select the device with the correct type and serial number, and click OK. Ethernet connection: Any USB PT-104 devices visible to your computer on your local network will appear in the list. Select the device with the correct type and IP address, and click OK. If your device does not appear in the list, type its IP address and port number in the boxes below the list. When you click OK, the USB PT-104 channels window will appear: 6.
USB PT-104 User's Guide 11 10. Now click OK. Readings from the USB PT-104 should appear in the monitor window: 2.8 The back panel A: Ethernet port B: USB port C: Ethernet Data indicator - Flashes to indicate Ethernet data transfer. D: Ethernet Link indicator - On when Ethernet port connected to an active device. E: Power/Status indicator - On when power is applied. Flashes to indicate conversion in progress. Copyright © 2010 Pico Technology Ltd. All rights reserved. usbpt104.
12 Background information 3 Background information 3.1 Platinum resistance thermometers (PRTs) PRTs (Platinum Resistance Thermometers) offer excellent accuracy over a wide temperature range (from -200 °C to 850 °C). Sensors are interchangeable between different manufacturers, and are available in various accuracy ratings in packages to suit most applications. Unlike thermocouples, it is not necessary to use special cables to connect to the sensor.
USB PT-104 User's Guide 13 Because of the low signal levels, it is important to keep any cables away from electric cables, motors, switchgear and other devices that may emit electrical noise. Using screened cable, with the screen grounded at one end, may help to reduce interference. When using long cables, it is necessary to check that the measuring equipment is capable of handling the resistance of the cables. Most equipment can cope with up to 100 per core.
USB PT-104 User's Guide 15 Index M Mains voltages 2 Maximum input range A 2 Mission-critical applications Access 3 Accuracy 4 N B Noise, RMS Back panel 3 4 O 11 C Output 4 Overview 1 Connection Ethernet PRTs 8 USB Overvoltage protection 6 4 P 5 Connectors 4 Conversion time Copyright 3 Pack contents 4 Power indicator 11 Power-over-Ethernet (PoE) 4 PRT background information connection 8 D Dimensions 6 12 4 R E Range Environmental conditions Ethernet connection 6 indicators p
16 Index V Viruses usbpt104.en 3 Copyright © 2010 Pico Technology Ltd. All rights reserved.
USB PT-104 User's Guide Copyright © 2010 Pico Technology Ltd. All rights reserved. 17 usbpt104.
Pico Technology James House Colmworth Business Park ST. NEOTS Cambridgeshire PE19 8YP United Kingdom Tel: +44 (0) 1480 396 395 Fax: +44 (0) 1480 396 296 www.picotech.com usbpt104.en-1 15.7.10 Copyright © 2010 Pico Technology Ltd. All rights reserved.
