Forbes Marshall Aquacon 4000, Instruction Manual, Page: 22 / 59

Instruction Manual Aquacon 4000
17
4 NORMAL OPERATION
4.1 Measurement mode
When the transmitter is powered on, the display first shows all segments briefly, after which
the transmitter automatically enters into the
Measurement mode .
Please note : To guarantee accurate readings the measuring system (transmitter
and sensor) must be calibrated.
MEAS
°C
4
ATC
µS
The mode indicator “MEAS” at the top of the display indicates that the transmitter is in
Measurement mode. The upper alpha-numerical display shows the measured conductivity
value, while the lower display shows the temperature value.
From Measurement mode you can access
Calibration mode and Setup mode by pressing
the CAL key or ENT key followed by the corresponding security code. For detailed information
refer to
section 5 “Calibration mode” or section 6 “Setup mode” , respectively.
By pressing the REL key in Measurement mode you can view the actual relay set points. By
pressing the MODE key followed by the corresponding security code in Measurement mode
you can switch relay operation mode from automatic to manual.
For detailed information refer to
section 7 “Relay Modes” .