ECD T90, Instruction Manual

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Press CAL Is this a new Sensor? (Yes, erases CAL Log in INFO, NO adds CAL to existing Log)
Press NO Place Sensor in CAL Solution (or leave in the process solution)
Press STAND Enter Value
Press
▲ ▼
NEXT xx.xx pH (use arrows and NEXT to enter process pH value)
Press OK xx.xx pH, xxx.x mV, Accept Value?
Press YES OFFSET: xx.xx pH x.x mV, SLOPE: xx.xx mV/pH (this data written to Log)
Press OK Back to Cal Menu
Press HOME Hold is ON (Press HOLD to turn off Hold)
Press HOLD Turn off Hold
Press EXIT Main Display
4.2 ORP C
ALIBRATION
P
ROCEDURES
AUTO Calibration recognizes Quinhydrone solutions (mVa), pH 7.00 quinhydrone solution (90 mV) and pH 4.01
quinhydrone solution (267 mV) for automatic ORP calibrations. Any calibration solutions can be used but the
ORP value will have to be entered manually. Follow the steps below to accomplish an ORP calibration.
4.2.1 A
UTO
C
AL WITH
Q
UINHYDRONE
Action Prompt
Double Press any Button MENU HOME, Hold is OFF
Press HOLD Hold freezes 4-20 mA Output and locks Alarm Relays during Calibration
Press CAL Is this a new Sensor? (Yes erases CAL Log in INFO, NO adds CAL to existing Log)
Press Yes/NO Place Sensor in CAL Solution ( use pH 7.00 Q solution)
Press AUTO then CAL 1 STABILIZING, xxx.x mV, xxx.x mV
a
, 90.0 mV corrected Accept Cal?
Press YES CAL1 Value 90.0 mV, Continue to CAL2? Move sensor to pH 4.01 Q solution
Press YES STABILIZING, 269.2 mV 267.0 mV
a
, 267 mV corrected Accept Cal?
Press YES OFFSET: 90.0 mV
a
, 87 mV, SLOPE: 1.02 mV/ mV
a
(data written to Log)
Press OK Calibration complete
Press HOME Hold is ON
Press HOLD Turn off Hold
Press EXIT Main Display
4.1.2 S
TANDARDIZE
Leave the sensor in the process solution, take a grab sample from the process and determine the ORP.
Action Prompt
Double Press any Button MENU HOME, Hold is OFF
Press HOLD Hold freezes 4-20 mA Output and locks Alarm Relays during Calibration
Press CAL Is this a new Sensor? (Yes, erases CAL Log in INFO, NO adds CAL to existing Log)
Press NO Place Sensor in CAL Solution (or leave in the process solution)
Press STAND Enter Value
Press
▲ ▼
NEXT xx.xx mV (use arrows and NEXT to enter process ORP value)
Press OK xxx.x mV, xxx.x mV, Accept Value?
Press YES OFFSET: xxx.x mV xxx.x mV, SLOPE: xx.xx mV/mV (this data written to Log)
Press OK Back to Cal Menu
Press HOME Hold is ON (Press HOLD to turn off Hold)
Press HOLD Turn off Hold
Press EXIT Main Display