ADS Environmental Services ADS TRITON+ QR 775027 A3 - Manual (Page 361)

10-40 ADS TRITON+ Manual
Problem Modem connects but monitor does not respond.
Possible
Cause
Connection type configuration has reverted to Serial.
3.3-volt fuse on regulator may have blown.
Possible
Solutions
Verify that the communication type is set to Wireless.
Connect directly with the monitor using a USB Serial
Interface cable (ADS p/n 8000-0337). Verify the monitor
responds. If it does, the modem might be faulty. If it
does not, remove the monitor from the hazardous area
(at least 20 feet away from the manhole), disconnect
the battery pack, wait at least 1 minute, and then
reconnect the monitor battery pack. If remote
communication resumes, try to connect several times to
ensure communication is reliable.
Replace the 3.3-volt yellow fuse (when replaceable) on
the regulator.
Contact your regional ADS representative.