User guide

83
Adjustment and commissioning
Graph
zone
Description Name displayed in
the user defined
"Ux" view (see
chap. 8.10.8)
Associated
code in the
datalogger (see
chap. 8.10.18)
State of
the "on/off"
output (see
chap. 8.10.22)
B The conductivity of the fluid is between the
percentage set in the function "USP Alarm"
and the value in the table USP<645> at
the corresponding temperature.
"USP Alarm" 2 ON (output not
inverted)
A The conductivity of the fluid is below the
percentage set in the function "USP Alarm"
at the corresponding temperature.
"OK" 0 OFF (output
not inverted)
TEMP. CALIB: Choose the value of the temperature used when calibrating the sensor:
• choose "Auto": the temperature of the fluid is measured by the sensor
• choose "Manual": enter the value of the temperature (in °C) in the next field, e.g. when no temperature sensor is
connected to the module.
CALIBRATION BUFFER: Choose the calibration solution used for the automatic calibration of the conductivity
sensor.
8.11. Calibration menu
8.11.1. Activate/deactivate the Hold function
Refer to chap. 8.9 to access Calibration menu.
Calibration System Hold
Disable
Enable
The Hold mode is automatically deactivated when the multiCELL restarts after a power interruption, if the
Hold mode was activated at the moment of the power cut-off.
The Hold mode is used to carry out maintenance work without interrupting the process.
To activate the HOLD mode:
→ access the "HOLD" function;
→ choose "Enable";
→ confirm by "OK".
When the device is in Hold mode:
• the display shows the icon
H
instead of the icon ;
• the current emitted on each 4-20 mA output is fixed at the last value of the process input associated with each
output;
• each digital output is fixed at the state acquired at the moment the Hold function is activated;
• the multiCELL remains in Hold mode until the Hold function is deactivated.
Type 8619
english