Floscan 9000-20B-1 GPS Interface System - Manual (Page 25)

8/30/2004 7000-044-00D
FloScan Instrument Company, Inc. Tel: (206) 524-6625 Fax: (206) 523-4961
3016 NE Blakeley Street, Seattle, WA 98105 Email: [email protected] Http://www.floscan.com
XII. NMEA 0183 Input, MPG, (Nautical) Miles per Gallon Problems:
Error Codes
Display Reason Cause
OFF No signal activity present on NMEA 0183 terminals
for four seconds
GPS / LORAN-C OFF
NMEA OUTPUT not selected
Leads not connected
A & B leads reversed
- - - Receiving valid NMEA 0183 Version 1.5 or 2.0
message, speed message invalid.
GPS satellite reception is poor
GPS / LORAN-C in startup mode
- 0 - Fuel flow reading below 0.1 GPH (LPH) (twin-both
engines). Valid NMEA 0183 speed message
present.
Engine(s) not running
Fuel flow reading problem.
Er1 Some pulsing activity present. No valid NMEA
0183 message received in last four seconds.
Leads connected to wrong source
GPS / LORAN-C set to NMEA 0180 or 0182
A & B leads reversed.
Er2 NMEA message detected. Missing “GPRMC” or
“LCRMA” sentence.
GPS / LORAN-C incompatible with NMEA 0183,
ver. 1.5 or newer
1. An OFF display in the GPH/MPG window indicates the FloScan Instrument isn’t receiving a NMEA 0183 speed signal from
the GPS. Check wiring connections to the GPS, and verify that it is turned on.
2. A Dash, Dash, Dash, (- - -) display indicates the GPS is in startup mode, or satellite reception is poor.
3. A Dash 0 Dash, (- 0 -) display indicates a valid NMEA 0183 speed message is present, but that fuel flow readings are so low
the FloScan Instrument is unable to compute a meaningful MPG figure. Dash 0 Dash, (- 0 -) may be displayed when motoring at
low speeds, or when slowing down. When slowing down the FloScan Instrument may display ever-increasing MPG readings, go
to Dash 0 Dash, (- 0 -) and start redisplaying ever-increasing readings again.
4. Er1 indicates that the FloScan Instrument isn’t receiving a valid NMEA 0183 message from the GPS. Check wiring
connections to the GPS.
5. Er2 indicates that, “GPRMC” or “LCRMA” is missing from the GPS NMEA 0183-speed signal message. Verify the GPS
sending a NMEA 0183 version 1.5 or newer signal.
This concludes system testing. If problems with your system persist,
contact FloScan Technical Support with testing results