023-064X Technical Manual 
 
 
8 
3.2  User settings list 
To view the current settings on the model 023-064X, press right  several times. 
To modify the current setting press up  or down . 
To save, press left and up arrows  and  at the same time.  The appearance of **OK** will confirm successful 
save. 
 
Setting Code        Definition                         Display Maximum value    default 
============================================================================= 
Sensor A (first module, plugged into the top slot)       Firmware rev 2B29.9 
   Sensor B (second module, plugged into the bottom slot) 
00  18  Alarm 1 and relay limit       AL1      sensor scale      400ppm 
01  19  Alarm 1 set time (seconds)      A1Del  999    5s 
02  20  Alarm 1 reset time (seconds)      A1Off  999    300s 
03  21  Alarm 2 limit               AL2  sensor scale     400ppm 
04  22  Alarm 2 set time        A2Del  999    5s 
05  23  Alarm 2 reset time        A2Off  999    300s 
06  24  Alarm 3 limit               AL3  sensor scale      400ppm   
07  25  Alarm 3 set time         A3Del  999            5s 
08  26  Alarm 3 reset time        A3Off  999            5s 
 
40    sensor A analog output zero (factory set)  AnZA  255         
41    sensor A analog output span (factory set)  AnSA  255 
42    sensor B analog output zero (factory set)  AnZB  255  
43    sensor B analog output span (factory set)  AnSB  255 
44    °C temperature display 0=off 1=on    Temp  0/1    0 
45    audio alarm 3 off/on        Aud  0/1    1 
49    Keyboard security lock, 0=off, 1=on    KBL  0/1    0 
50    Temperature modify/correct      TMod  -9/+9°C 
51    High temperature alarm limit (alarm 1)   ATHi  0-99°C    60 
52    Warm up delay, disables alarms on power up  W/U  0-99 mins  60 
55    Low temperature alarm limit (alarm 3)    ATLo  0-99°C    0 
56    Network Display on/off (non BACnet version)  Net  0/1    0 
57    sensor A refrigerant ppm scale    Ref-A  Refrig list  Rx 
58    sensor B refrigerant ppm scale    Ref-B  Refrig list  Rx 
Where default Rx is R507 for 023-0642 and R22 for 023-0643 
 
 
3.3  Test 
 
Analog output 
To test the output signal, power the sensor and wait for the warm-up period to expire 
Press right  several times until you see 40 AnZA. Press up  or down  to fine tune the output. 
Use 40 AnZA to force sensor A output to 2V (4mA) (min range 0 ppm) 
Use 41 AnSA to force sensor A output to 10V (20mA) (max range) 
Use 42 AnZB to force sensor B output to 2V (4mA) (min range 0 ppm) 
Use 43 AnSB to force sensor B output to 10V (20mA) (max range) 
 
Relay output 
To force the relay output 1 for 5 minutes, press up  for more than 5 sec. Add 5 minutes each time you 
press up . 
“MAN” or “M” at the left of the display will tell that the relay is overridden. 
To cancel the relay override, press down .