User manual EUTECH INSTRUMENTS 2-WIRE TEMPERATURE TRANSMITTER

[. . . ] EUTECH INSTRUMENTS 3 Diagram and Dimensions (in mm) 2-Wire Temperature Transmitter Operating Instructions 4 Installation Operating with one or several Transmitters: Figure 1 - Operating with 1 Transmitter 1 Preface Thank you for purchasing the Eutech 2-wire Temperature Transmitter. [. . . ] · · · · · EC-PH-XTR; EC-ORP-XTR; EC-CON-XTR; EC-DO-XTR; and EC-TEMP-XTR. The information presented in this manual is subject to change without prior notice, as improvements are made to the product. While Eutech will endeavor to try its best to inform the market, this does not represent a commitment on the part of Eutech Instruments Pte Ltd. Eutech Instruments does not accept any responsibility for damage or malfunction of the unit due to improper installation or operation of the Transmitter. Tel: (65) 778 6876; Fax: (65) 773 0836; e-mail: marketing@eutechinst. com; Home page: http://www. eutechinst. com Figure 2 - Operating with several transmitters 2 Introduction 5 Electrical Connections The Transmitter is used for the continuous measurement of pH, ORP (REDOX), Conductivity, Dissolved Oxygen or Temperature, in conjunction with an appropriate sensor. The Transmitter is housed in a IP65 enclosure, with openings for input and 4-20mA output. 68X256904 Rev 1 10/99 6 Before Calibration Remove cover of Transmitter and ensure that electrode is correctly connected as above. Connect Amp meter to the 4/20mA output of Transmitter (Appendix 1). 7 1) 2) 3) 4) 5) 6) 7) 8) 9) Temperature Transmitter Calibration Immerse Temperature probe in water bath at varying temperatures and observe Amp meter display; Amp meter should read corresponding mA output as follows: In 0oC, the output is 4 mA; In 25oC, the output is 8 mA; In 50oC, the output is 12 mA; In 80oC, the output is 16. 8 mA; In 100oC, the output is 20 mA; To calibrate, locate "Temp adjustment" trimmer; Using a fine screwdriver, slowly turn trimmer till Amp meter reads correct current output; pH Transmitter Combination pH Electrode, General, integral 5m cable Combination pH Electrode, w/PMP, integral 5m cable Figure 4 - Method Two 10 pH Ordering Information Item Cat Code ECPHXTR ECARTSO05B ECARGTSO05B NB: For other Temperature values, expected current output is based on: mA = {(16/100) x Temperature value} + 4mA Dissolved Oxygen Item Dissolved Oxygen Transmitter General Purpose D. O. [. . . ] probe, 0 ­ 10 ppm, Industrial, integral 5m cable ORP Model Range Accuracy Calibration Input Output Operating Voltage Load Item ORP Transmitter Combination Platinum integral 5m cable ORP Electrode, w/PMP, Cat Code ECORPXTR ECHTPTTSO05B ECHTAUTTSO05B Combination Gold ORP Electrode, w/PMP, integral 5m cable Conductivity Item Conductivity Transmitter 2-Pin SS, k=1. 0, integral 3m cable Cat Code ECCONXTR ECCONSEN46 Housing 77 x 77 x 28 mm, field mountable Temperature Item Cat Code ECTEMPXTR ECPT10001M or ECPT10005M 9 Appendix 1 Temperature Transmitter Pt 100 probe, SS316 Connecting Amp Meter for Calibration Power Supply Item 120V Power Supply 220V Power Supply Cat Code EC-120-XTR EC-220-XTR Figure 3 - Method One 68X256904 Rev 1 10/99 [. . . ]