Bacharach 3015-4256 User Manual

Instruction 3015-4256 

19

 

From the Data Display screen, use the Keypad buttons to place the arrow (>) on the display next to the 

FAULTS function. Then press ENTER to display the fault log. 

Immediately after selecting the FAULTS function, the most recent fault event is displayed. The fault log 

identifies the type of fault, plus the date and time it occurred. In the example below, record #03 shows that 
a Zone Flow Fault (fault code <0800>) occurred on 11/12/03 at 08:17.  
 
 

The cause of the fault is identified by a numeric fault code.  To convert the fault code into a text 

description of the fault, first press the ENTER button and then use the Keypad buttons to scroll through 
the display until the text description of the fault appears. If the fault code is a combination of two or more 

faults, then continue to use the Keypad buttons until all fault text descriptions have been displayed. For 

example, the fault code <1800> represents the combination of both a Zone Flow <0800> and a Purge Flow 
<1000> fault as shown below: 
 
 
 

Note that the Fault Log can be cleared as described in Section Clearing the Stored PPM Log, Alarms & 
Faults Data on Page 20. 

<0001> Box Temperature Fault: Enclosure 

temperature is outside normal range (or IR 
detector has failed). Check that the monitor is not 

being subjected to extreme temperatures. Verify 

that the ventilation holes are not obstructed. Use 
the DIAGNOS function to check the Box 

Temperature. 

<0002> Bench Temperature Fault: Optical 

bench is outside normal operating range (or IR 

detector has failed). Check that the monitor is not 
being subjected to extreme temperatures.  

<0004> - Manifold Pressure Fault: The manifold 
pressure is outside normal operating range (or IR 

detector has failed). Enter the DIAGNOS function 

and record ALL data. Call the factory with this 
information for further instructions. 

<0010> Loop Fault: The 4–20 mA current loop is 
open, or there is a high resistance in the circuit. Check 

the wiring to the load/monitoring circuit. If this 

feature is not being used, a 100 ohm resistor must be 
connected to the 4–20 mA connector (Page 11). 

<0100> Zero Filter Fault: A purge filter failure 

has occurred. Replace the unit’s charcoal filter. 

<0200> Gain Set Fault: The digipot autotune 

sequence has failed. This fault will only occur on 
first boot up or after a firmware upgrade. Call the 

factory for further instructions. 

<0400> A/D Fault: A fault has occurred in the 

analog-to-digital circuitry. Contact the factory with 
this information for further instructions. 

<0800> Zone Flow Fault: Check for: A kink in 
the gas-sample line or exhaust line; a blocked line-

end filter; a failed pump. 

<1000> Purge Flow Fault: Check that the 
internal charcoal filter inlet (Page 8) is not blocked. 

Once the blockage has been cleared, the monitor 

will return to normal operation after the monitor 
completes a purge cycle. 

<4000> Zero Fault: The IR detector’s output 
voltage is out of tolerance. Enter the DIAGNOS 

function and record ALL data. Call the factory with 

this information for further instructions. 

<8000> Clipping Fault: The detector voltage may 

be out of tolerance. Use the DIAGNOS function to 
check the IR detector voltage. Call the factory with 

this information for further instructions. 

 
FAULT CODES ARE ADDITIVE.  For example: 

A fault code of <1800> indicates that both a Purge 
Flow Fault <1000> and a Zone Flow Fault <0800> 

have occurred.

#03 <0800> @ 
11/12/03  08:17 

FAULT CODE<1800> 
12     ZONE FLOW 

FAULT CODE<1800>
13    PURGE FLOW