Conductivity/Resistivity - Signet 9900 Operating Instructions Manual

Conductivity / Resistivity
This is the normal display
and does not time out.
VIEW Mode Menu
Same as above with temperature, does not time out.
Displays the 4 to 20 mA LOOP output.
Bottom line shows one of three states (OFF, ON, PLS) for each of the three relays.
Displays remaining time for CYC LOW or CYC HIGH mode. The relay(s) will remain ON while counting down.
NOTE: (Reset the Timer) In the RELAY menu, select TEST RELAY function.
The timer will reset to 0 if the condition no longer exists when the TEST is performed.
The timer will restart if the condition still exists.
CAL Menu
YES prevents relays from activating while making adjustments, and relays in PULSE mode will suspend
pulsing. Output is held until the user exits the CAL menu. Select YES/NO.
Default = NO.
Shows real-time value and selected standard. "PLACE SENSOR IN STANDARD".
Unit waits until reading is stable; if bad cal, returns "ERROR, CANNOT DETERMINE STANDARD".
Refer to buffer values and AUTO CAL Procedure in the Appendix.
Shows "CONDUCTIVITY" on bottom line; when user presses any button the live value is frozen and the
user edits that value. If bad cal, returns "ERR TOO LARGE TO CALIBRATE".
See Manual Cal procedure in Appendix.
Shows "TEMPERATURE" on bottom line; when user presses any button the live value is frozen and the
user edits that value. If bad cal, returns "ERR TOO LARGE TO CALIBRATE".
Resets Conductivity calibration. After pressing ►, select YES/NO.
Resets Temperature calibration. After pressing ►, select YES/NO.
Enter date of calibration (mm-dd-yyyy) and initials of calibrator (II).
Cond/Res Setup Checklist
1. Make sure COND/RES sensor type is selected
(see System Setup Menu, page 25).
2. Set Cell Constant.
3. Set the Temperature Units (°C or °F).
4. Set Conductivity units.
5. If LOOP is used, set the minimum and maximum 4 to 20 mA setpoints.
6. Set Temperature Compensation.
7. Set Last Cal Date and initials.
8. Select source for Open Collector and Relay output (COND or TEMP).
9. If desired, setup relay functions for your own application.
9900 Transmitter 37