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H25-IR Maintenance
Instruction 3015-4342 37
5 Maintenance
5.1 Diagnostics Menu
The Diagnostics menu provides information about the instrument’s operation that will be useful to service
technicians for the purpose of troubleshooting various fault conditions.
To display the Diagnostics menu, first press both the ENT and ESC buttons on either the instrument’s
front panel or Smart probe at the same time to display the Main menu. Next, use the Up and Down
buttons to highlight “DIAGNOSTICS” and then press ENT to display the Diagnostics menu.
Main Menu:
SYSTEM
LOG
SETUPS
CAL DATA
DIAGNOSTICS
5.1.1 Sensor Data
The Sensor Data screen provides information about the sensor’s operating parameters and its surrounding
environment. When contacting the Bacharach Service Department, the operator may be asked to provide
this information to help in the troubleshooting process.
To display the Sensor Data screen, first display the Diagnostics menu as described in Section
5.1. Next,
use the Up and Down buttons to highlight “SENSOR DATA” and then press ENT.
Sensor Data Screen Information:
LR .......................... Measured Leak Rate
FAULT ................... Current Numerical Fault Code (refer to Section
5.1.2 Last Fault)
OPEN/CLOSED .... Measure / Search Flow Rate Valve Position
DET ....................... Detector Voltage
N ............................ Detector’s Output Noise Factor (with no gas detected)
Z ............................ Stored Zero Voltage of Detector
DET ....................... Detector Temperature
SPPM ..................... PPM Corrected to Standard Pressure and Temperature
BOX ....................... Enclosure Temperature
M ........................... Manifold Pressure
AMB ....................... Ambient Pressure
MPM....................... Moles Per Minute
AU .......................... Average Optical Absorbency Unit of Gas being detected (0 = no gas)
PPM........................ Parts Per Million value of the Current Detected Gas Level
UML........................ Absolute Concentration of Gas in Micro Moles per Liter
Diagnostics Menu:
SENSOR DATA
LAST FAULT
IR EMITTER
PRESSURE