Bacharach HGM-SZ Installation & Operation Manual

Also see for AGM-SZ: Product catalog Installation & operating instructions

Bacharach HGM-SZ Installation & Operation Manual Manual pdf 28 page image

Single Zone Gas Monitor24 P/N: 3015-4256 Rev 133.5.4. Fault CodesFAULT CODES ARE ADDITIVE. For example: A fault code of <1800> indicates that both a Purge FlowFault <1000> and a Zone Flow Fault <0800> have occurred.Code Name Description<0001> Box TemperatureFaultEnclosure temperature is outside normal range (or IR detector hasfailed). Check that the monitor is not being subjected to extremetemperatures. Verify that the ventilation holes are not obstructed.Use the DIAGNOS function (page 26) to check the BoxTemperature.<0002> BenchTemperature FaultOptical bench is outside normal operating range (or IR detector hasfailed). Check that the monitor is not being subjected to extremetemperatures.<0004> Manifold PressureFaultThe manifold pressure is outside normal operating range (or IRdetector has failed). Enter the DIAGNOS function (page 26) andrecord ALL data. Call the factory with this information for furtherinstructions.<0010> Loop Fault The 4–20 mA current loop is open, or there is a high resistance in thecircuit. Check the wiring to the load/monitoring circuit. If this feature is notbeing used, a 100 ohm resistor must be connected to the 4–20 mAconnector (page 16).<0100> Zero Filter Fault There is gas present in the purge air. Locate the monitor in an areacontaining fresh air, or install a purge air line. Refer to page 7.<0200> Gain Set Fault The digipot autotune sequence has failed. This fault will only occuron first boot up or after a firmware upgrade. Call the factory forfurther instructions.<0400> A/D Fault A fault has occurred in the analog-to-digital circuitry. Contact thefactory with this information for further instructions.<0800> Zone Flow Fault Check for:A kink in the gas-sample line or exhaust line; a blocked externaltermination filter; a blocked internal hydrophobic filter (page 11); afailed pump.<1000> Purge Flow Fault Check for:A kink in the purge line; a blocked external termination filter; ablocked internal hydrophobic filter (page 11); a failed pump. Oncethe blockage has been cleared, the monitor will return to normaloperation after the monitor completes a purge cycle.<4000> Zero Fault The IR detector’s output voltage is out of tolerance. Enter theDIAGNOS function (page 26) and record ALL data. Call the factorywith this information for further instructions.<8000> Clipping Fault The detector voltage may be out of tolerance. Use the DIAGNOSfunction (page 26) to check the IR detector voltage. Call the factorywith this information for further instructions.