beautypg.com

Appendices, Error codes, Standard transmitter configuration – Xylem PHIX COMPACT pH and Redox Transmitter User Manual

Page 23: Hart® commands, Commands

background image

23

SW 836502

Appendices

Appendices

Error codes

Symptom / mA signal:

Fault:

Remedy:

Constant current signal

Electrical connection Check connection and make the necessary

or I = 0 mA

is not made correctly. corrections.

Unsteady current signal

Undervoltage.

Check the voltage at transmitter.

Min. voltage @ max. load > 12 V DC!

I = 3.80 mA

Undervoltage.

Check the voltage at transmitter.

Min. voltage @ max. load > 12 V DC!

I = 3.85 mA

Electrode error.

Exchange the electrode.

I = 3.90 mA

Calibration

not possible.

Exchange the electrode.

I = 3.95 mA

pH lower than

Readjust the measuring range to a lower range.

measuring range.

I = 4.00 mA

Error on startup.

Disconnect the transmitter from PSU for

min. 5 seconds and try again.

I = 22.00 mA

pH higher than

Readjust the measuring range to a higher range.

measuring range.

Standard transmitter configuration
The transmitter is standard configured as described below on delivery:

pH transmitter, item no. 203111:
Measuring range: 0-14 pH = 4-20 mA, 0-point = 4,6 pH

pH and temperature transmitter, item no. 203112:
Measuring range: 0-14 pH = 4-20 mA, 0-punkt = 4,6 pH, Temperature: 0-50° C = 4-20 mA

Redox transmitter, item no. 203121:
Measuring range: -1000 to +1000 mV = 4-20 mA

HART

®

commands:

All commands and settings can be read and set by means of HART

®

commands. Ask for

separate documentation regarding HART

®

commands.