Table of Contents
Advertisement
TLM150 User's Manual
5 Troubleshooting
If you notice unexpected operation of the Maretron TLM150, follow the troubleshooting
procedures in this section to remedy simple problems.
Symptom
No tank level
1. If operating in the NMEA 2000
output
2. Ensure that power is supplied to the NMEA 2000
3. Ensure that both trunk line terminators are in place. Proper network
4. Remove the TLM150 sensor component from the tank opening and
Inaccurate tank
1. If operating with a rectangular tank, ensure that the tank depth is
level output
2. If using custom calibration, re-calibrate the TLM150 (see Section
3. Ensure that the tank contains gasoline. Gasoline vapors must be
Page 12
Troubleshooting Procedure
®
NMEA 2000
interface (see Section 2.5.1) and tighten if necessary.
network power can be checked by measuring the voltage at an open
tee between NET-S and NET-C. The voltage should be between 9 and
16 volts.
termination can be checked by removing network power and
measuring the resistance at an open tee between NET-L and NET-H
signals. The resistance should read approximately 60 ohms (two 120
ohm terminators in parallel equals 60 ohms).
ensure that the surface of the ultrasonic sensor is not fouled.
programmed properly (see Section 3.3.1).
3.3.2).
present in the tank in order for depth readings to be accurate. If you
have another fluid type, please use the Maretron TLM100 or TLM200
tank level monitors.
®
Mode, check the connection to the
®
network. Proper
Revision 1.2
Advertisement
Table of Contents
