Signet 9900 Operating Instructions Manual page 36

ORP
CAL Menu
Select AT SENSOR to perform calibration using the Signet 2750/2751 sensor electronics.
Select AT INSTRUMENT to perform calibration at the 9900 via EasyCal or manual calibration.
(See ORP Calibration procedures in the Appendix.). Default = AT INSTRUMENT.
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.
(CAL AT INSTRUMENT only) Press ► to start the EasyCal process.
You will be prompted to enter your password. (See ORP EasyCal procedure in the Appendix).
(CAL AT INSTRUMENT only) Applies a linear offset to the ORP measurement. For single point calibrations,
assign the average value of your process to ORP STANDARD. For two-point calibrations, assign the min or
max value of your process to ORP STANDARD. (See ORP Calibration procedures in the Appendix).
(CAL AT INSTRUMENT only) Applies a slope to the ORP measurement. The ORP SLOPE is used for two-point
calibration along with the ORP STANDARD. If you applied the min value of your process to the ORP STANDARD,
then apply the max value to the ORP SLOPE. Else, apply the min value to the ORP SLOPE. The slope value and
the standard value must be at least 30 mV apart. (See ORP Calibration procedures in the Appendix)
(CAL AT INSTRUMENT only) Resets calibration to factory settings. After pressing ►, select YES/NO.
Enter date of calibration (mm-dd-yyyy) and initials of calibrator (ii).
INPUT Menu
Enter string up to 13 characters (optional).
Default = ORP.
Dampens display, output and relay response rates. Select Low, Med, High, OFF.
(See discussion in Appendix.) Default = OFF.
36 9900 Transmitter