Firmplate 
 
 
 
 
 
 
 
 
 
 
 
 
 
It contains relevant information with respect to the controller version (CSA or 
ATEX variants). 
CE marking with identification of the Notified Body that assessed the OLDHAM 
manufacturing quality system (0080 - INERIS) 
ATEX marking (Performance requirements of gas detection systems for flammable 
gases) 
Serial Number. The first two digits (in this case 17) correspond to the year of 
manufacture (in this case 2017). 
Variant (1 or 2 lines to work with 4-20mA analog detector or Oldham digital detector, 
or 2 channels to work with Wheatstone bridge gas detectors). In this example, 
version ‘Wheatstone Bridge’. 
Power supply type (24Vdc or 100-240Vac). In this example, 24Vdc type. 
Name and mail address of the Manufacturer 
 
The COM 32 Software 
This is intended for setting the MX 32 parameters from a Windows
®
 operated 
PC. The operation and use of this application is covered in a special training 
course.