Teledyne 700 IR Series Instruction Manual page 46

700 IR Series
INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO
GASES
USER MANUAL
No Communication – RS-485 Modbus™
If unit has a normal reading with no Faults displayed and the Modbus™ is not communicating.
• Verify that the correct (and non-duplicated) serial address is entered (per Section 3.5.6)
• Check that wiring is properly connected at terminal blocks and through to controller inputs
• Perform a "Signal Output Check" sequence via Section 3.5.8 and troubleshoot wiring
• Swap with new ITM to determine if the ITM's serial output circuit is faulty
Customer Support and Service Policy
Teledyne Oldham Simtronics Headquarters
TELEDYNE OLDHAM SIMTRONICS S.A.S.
Z.I Est – rue Orfila
CS20417
62027 Arras Cedex France
Phone: +33 (0)3 21 60 80 80
Fax: +33 (0)3 21 60 80 00
• website:www.teledynegasandflamedetection.com
• customer service:oldhamsimtronics-customerserviceexport@teledyne.com
• technical
support:oldhamsimtronics-support@teledyne.com
• repair activities:oldhamsimtronics-R2@teledyne.com
All Technical Service and Repair activities should be handled by the Oldham Service Department
via phone, fax or email at contact information given above. RMA numbers should be obtained
from the Teledyne Oldham Simtronics Service Department prior to equipment being returned. For
on-line technical service, customers should have ready the model number, part number, and
serial number of product(s) in question.
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NP700IRIMEN
Revision E.0