Compur 4120 operation manual Maintenace request option

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	SF-LED	SF-Relay	MR-	PCS-*
		Control	Control		Relay	Relay
		module	module
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	Analog signal	flashing	„off“	active	active	passive
(programmable by S3)
C4 Purge
PU Pump current too high
T2 Temperature out of specs
O System failure:
A1 Amplifier	4mA / 0V	„off“	„on“	open	passive	passive
C3 Sensitivity
(programmable by S3)
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)

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