ADS Environmental Services ADS TRITON+ QR 775027 A3 - Manual (Page 374)

Maintenance and Troubleshooting 10-53
Problem Individual PEAKVEL_1 or PEAKVEL_3 values
consistently read -9.99.
Possible
Causes
Sensor may be faulty.
5-volt fuse on regulator may have blown.
Possible
Solutions
Replace the Peak Combo Sensor or Surface Combo
Sensor.
Replace the 5-volt blue fuse (when replaceable) on the
regulator.
Caution: Do not connect a questionable sensor to
another monitor before verifying the integrity of the
sensor. A shorted sensor will blow the 5-volt (blue)
replacement fuse on the regulator in the monitor.
Surface Velocity Subsystem
The following tables contain general troubleshooting techniques for
the surface velocity subsystem corresponding to the Surface Combo
Sensor.
Problem Velocity readings are erratic or incorrect.
Possible
Causes
Sensor may be dirty or covered by debris.
Maximum Velocity setting may require adjustment.
Transmit Frequency setting may require adjustment.
Possible
Solutions
Clean the sensor transmit/receive surfaces.
Fine-tune Maximum Velocity setting in device
parameters.
Test other Transmit Frequency settings in the velocity
parameters.