ADS Environmental Services IETG FlowHawk QR 775012 A4 - Manual (Page 338)

8-54 IETG FlowHawk Manual
Problem Individual UpDepth_1 values consistently read -9.99.
Possible
Causes
Sensor may be faulty.
5-volt fuse on the regulator may have blown.
Possible
Solutions
Replace the Peak/Slimline Peak Combo Sensor.
Replace the 5-volt blue fuse (when replaceable) on the
regulator or return the monitor to IETG for regulator
replacement.
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.