Compur 4120 operation manual Option analog output inhibition, Analog Terminal Solder straps

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Compur Statox 4120

8. The option analog output inhibition

This option inhibits the analog output if the logic signal of the control module (see pic. 3, terminal 11) is set to 5 V instead of 0 V. This is the case if the system is unable to provide a valid measured value, for instance if:

-Alarm thresholds are adjusted or displayed

-During self test

-During the diagnostic box is connected

-During system start.

As soon as the sensor head provides the next valid data telegram, the analog output is activated again. This option will work with control module equipped with EPROM 02!

The analog output is programmed by solder straps. The terminals 23 and 24 provide an additional relay, closing when the analog signal is switched off.

Abb. 13: Solder straps on the pcb analog output inhibitor

Analog	Terminal		Solder straps			Analog
	13	14	JP1	JP2	23	24
4-20 mA	+	-	1-2	1-2		NO
0 – 1 V	Gnd	+	2-3	2-3		NO

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Contents Compur Statox Compur Statox Installation and electrical connections Trouble shootingMaintenance and calibration Compur Statox 4120 operationImportant notice Statox 4120 system Purpose of use and descriptionStatox 4120 sensor head Operation principle Statox 4120 rackAreas Construction ConnectionsStatox 4120 control module Bargraph displayLED SR 7 „System ready LED SF 8 „System FailDiagnostic box Statox 4120 sensor head Installation and electrical connectionsMounting Connecting the signal cable Example of cable specifications Sensor head connection procedureInstallation instructions Statox 4120 rackStatox 4120 control module Slide switch S1 Switch positions of the sensor head pcbToggle switch S3 Switch position for HCN Switch position for H2SSwitch position for COCl2 Switch position for CO Switch position for Cl2Switch position for HCl Switch position for ClO2 Alarm thresholds Detection modeCompur Statox 4120 operation Start upTrouble shooting SF flashingManually triggered self test of the system System failureUsing the diagnostic box Operation and error codes of the diagnostic boxDiagnostic box queries Button Display Diagnostic box error messagesCompur Statox Maintenance and calibration Inspection Statox 4120 Sensor headFilter cartridge replacement Generator cell replacementUsing span gas Sensor head calibrationThis is the last opportunity to abort the procedure ProcedureUse ex works calibration Maintenace request option Error C3 Too low sensitivity during self test Mounting the maintenance request pcbService mode control module Key Mode Relay PCS Relay WB Analog signal ReadingBridge Analog 20 mA 40-20mA Option analog output inhibition Analog Terminal Solder strapsSystem requirements Technical data General Gas Measuring range Sensor headControl module Diagnostic boxRack Art. Nr Accessories and spare partsArt.Nr Sensors & Generator Cells 558435