User manual EUTECH INSTRUMENTS 2-WIRE CONDUCTIVITY TRANSMITTER
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Manual abstract: user guide EUTECH INSTRUMENTS 2-WIRE CONDUCTIVITY TRANSMITTER
Detailed instructions for use are in the User's Guide.
[. . . ] EUTECH INSTRUMENTS
3
Diagram and Dimensions (in mm)
2-Wire Conductivity 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 Conductivity Transmitter. [. . . ] 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.
68X256902 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).
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1) 2) 3) 4) 5) 6) 7) 8)
Conductivity Transmitter Calibration
Hold electrode in air (electrode MUST be dry) and Amp meter should read 4mA; if not, calibration is necessary; Locate "Zero adjustment" trimmer; Using a fine screwdriver, slowly turn trimmer till Amp meter reads 4mA; For greater accuracy, adjust the slope with Standard calibrating solutions; Rinse probe in de-ionised water and immerse in standard solution; In 1413 µS solution, the output is 5. 1304 mA; In 2764 µS solution, the output is 6. 2112 mA; In 12. 88 mS solution, the output is 14. 304 mA; Using a fine screwdriver, slowly turn trimmer, marked `FSMS', till Amp meter reads correct mA value with respective Standard solutions. Remember to disconnect Amp meter and close cover.
Prepare fresh Calibrating solutions.
Figure 4 - Method Two
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pH
Ordering Information
Item Cat Code ECPHXTR ECARTSO05B ECARGTSO05B
pH Transmitter Combination pH Electrode, General, integral 5m cable Combination pH Electrode, w/PMP, integral 5m cable
Dissolved Oxygen
Item Dissolved Oxygen Transmitter General Purpose D. O. [. . . ] for 24V
ORP
Item ORP Transmitter Cat Code ECORPXTR ORP Electrode, w/PMP, ECHTPTTSO05B ECHTAUTTSO05B
Model Range Accuracy Calibration Input Output Operating Voltage Load
Combination Platinum integral 5m cable
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
Temperature
Item Temperature Transmitter Pt 100 probe, SS316 Cat Code ECTEMPXTR ECPT10001M or ECPT10005M
Housing
77 x 77 x 28 mm, field mountable
9
Appendix 1
Power Supply
Item 120V Power Supply 220V Power Supply Cat Code EC-120-XTR EC-220-XTR
Connecting Amp Meter for Calibration
Figure 3 - Method One
68X256902 Rev 1 10/99 [. . . ]
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