Navitron
Systems Ltd
NT925HDI
Technical Specifications

Inputs: -
Simultaneous Outputs: -
Supply Voltage Range
11 - 40Vdc
NMEA 0183
Isolated RS422
Channel 1
Power Consumption
2.5W
Illumination Max
3.0W
Sentence Type
$HEHDT
$HEROT
Update Rate
1Hz
5Hz
Step by Step Gyro Input: -
10Hz
5Hz
 
'S' Type
'M' Type
24Hz
1Hz
Step Voltage Range
15 - 100Vdc
15 - 100Vdc
NMEA 0183
Isolated RS422
Channel 2
Steps per Degree
3, 6 & 24
12
Resolution
0.1° - 0.33°
0.1°
Sentence Type
$VDVHW
$HEROT
$HEHDT
Follow Up Rate (min)
40° / sec
40° / sec
Update Rate
1Hz
10Hz
3Hz
5Hz
5Hz
5Hz
-
-
10Hz
Max Consumption
4mA / line
4mA / line
Resolution
0.1 Knot
Speed
1°/min
ROT
0.1°
Heading
Synchro Gyro Input: -
Ratio
1:1
36:1, 90:1,
180:1, 360:1
Signal Amplitude
±5Vdc nom.
Current Rating
50mA source/sink max
V Ref Range
10 - 115Vac
10 - 115Vac
Max Consumption
2mA
2mA
Furuno Format
(Isolated)
Channel 1
Channel 2
V Sig Range
(-30% +10%)
11 - 90Vac
11 - 90Vac
Update Rate
Independently
selectable @
5Hz or 40Hz
Frequency Range
50 - 500Hz
50 - 500Hz
Resolution
(Internal / Display)
0.25° / 0.5°
0.1° / 0.1°
Resolution
Independently
selectable @
0.166 or 0.1
Follow Up Rate (min)
50° / sec except
360:1 @ 24 / sec
Signal Amplitude
Independently
selectable @
5Vdc or 12Vdc
Speed Log Input Data: -
Speed Input Range
0.1 to 50 Knots
Pulse Rate
200 or 400 p.p.NM
Source Current
20mA max
Min Pulse Width
4.0mS
Signal Voltage
10 - 70Vdc
Isolated Step by Step: -
Steps per Degree
Selectable @
3, 6, 12 or 24
Operating Temp Range
-20 to +60 °C
Signal Amplitude
5 - 40Vdc
(Independent supply)
Compass Safe Distance
0.3m
Current Rating
50mA source/sink max
Mechanical Data: -
Z Out
270R
Width
145mm
Height
222mm
Navitron Custom Serial Heading Data: -
Depth
55mm
To Navitron Digital Heading Repeater
Type NT920DHR/1 (max 4 heads)
Weight
0.9Kg

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