Compur STATOX 4120 - Manual (Page 25)

Compur Statox 4120
7. The maintenace request option
Purpose:
This option can differentiate between fatal errors in the sensor head and maintenance requirements. It
requires a Statox 4120 control module equipped with EPROM Index ≥ 03. It also sets the analog
output to 4 mA during the self test, if required.
Operation modes:
The Statox 4120 can operate in 9 different modes. The relevant mode can be seen by the control
module LED`s and relays.
Operation mode Statox Analog output SR-LED
Control
module
SF-LED
Control
module
SF-Relay MR-
Relay
PCS-*
Relay
O Self test 0mA / 4mA / 0V „on“ „on“ active passive active
O Diagnostic box connected: 0mA / 4mA / 0V flashing „off“ active passive active
O Alarm threshold adjustment: 0mA / 4mA / 0V „on“ „off“ active passive active
O Start-mode 4mA / 0V flashing „off“ active passive passive
O Detection mode: Analog signal „on“ „off“ active passive passive
O Maintenance request:
B1 Battery Low
B2 Battery low under load
C1 Purge before test
C2 Purge between test peaks
C3 Sensitivity
(programmable by S3)
C4 Purge
PU Pump current too high
T2 Temperature out of specs
Analog signal flashing „off“ active active passive
O System failure:
A1 Amplifier
C3 Sensitivity
(programmable by S3)
4mA / 0V „off“ „on“ open passive passive
O Data transmission error 4mA/0V „off“ „on“ open passive passive
O Power failure 0mA/0V „off“ „off“ open passive passive
*(PCS=Process control system)
25