Floscan 9000-20B-1 GPS Interface System - Manual (Page 11)

07/23/1998 9000-007-00B
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
INSTALLATION
Series 9000 Multifunction Instrument
Gas - NMEA 0183 Input
This unit conforms to NMEA 183, Version 1.5 and 2.0 interface standards and requires a message that includes “VTG”, “GPRMC” or
“LCRMA”. Check your owner’s manual to verify your GPS /LORAN-C includes this information. To insure an easy trouble free
installation, read all instructions before starting.
Wiring
1. Refer to the electrical wiring section of the GPS / LORAN-C Owner’s Manual for the proper procedure to connect your GPS /
LORAN-C to NMEA 183 devices. Use shielded wire between instruments and ground the shield ONLY at the GPS / LORAN-C
(sender end), not at the FloScan instrument end (receiver end). The shield is not to be used as a ground path.
2. Connect the WHITE/ORANGE wire (terminal #15, FloScan instrument) to the NMEA “(+)”(BNC center terminal) terminal
coming from your GPS / LORAN-C instrument.
3. Connect the GREEN/BLACK wire (terminal #7, FloScan instrument) to the NMEA “(-)” (BNC shield) terminal coming from
your GPS / LORAN-C instrument.
4. Connect the GRAY wire (terminal #2, FloScan instrument) to one terminal of a single pole, single throw switch. Connect the
BLACK wire (terminal #13, FloScan instrument) to the other terminal.
Calibration
1. See your GPS / LORAN-C owners manual and set output for NMEA 183. Speed is always sent as speed over ground in knots no
matter what units your GPS / LORAN-C displays.
2. Fuel flow rate calibration is automatically done when the totalizer is calibrated. To calibrate, see the Totalizer calibration
instruction page.
MPG/GPH Operation
With the MPG/GPH switch in the OFF position, your instrument displays engine fuel flow (in twin engine installations, the engine
selected by the port/stbd. switch). In the ON position, fuel mileage (speed over ground in Knots /all fuel being consumed) is shown
as “0.00” to “9.99”, then “10.0” to “99.9”. You must have a valid NMEA 183 version 1.5 or 2.0 speed and RPM from at least one
engine to display fuel mileage; otherwise you receive an error code:
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
(+) & (-) leads reversed
- - - Receiving NMEA 0183 Version 1.5 or 2.0 message,
but speed message is invalid. GPS satellite reception is poor
GPS / LORAN-C in startup mode
- 0 - No RPM reading (twin-both engines). Valid NMEA
0183 speed message present. Engine(s) not running
Tachometer leads not connected to instrument
Er1 Some pulsing signal present but no NMEA 0183
message received in last four seconds Leads connected to wrong source
GPS / LORAN-C set to NMEA 0180 or 0182
(+) & (-) leads reversed.
Er2 NMEA 0183 message detected. Missing “VTG”,
“GPRMC” or “LCRMA” sentence. GPS / LORAN-C incompatible with NMEA 0183,
version 1.5 or newer