Murphy HelmView HV750, Installation Manual

Section 78 

00-02-0803 

03-07-12

 - 

12 -

Specifications 

Electrical 

Display  

7” (178mm) color transmissive TFT LCD 

Resolution  

WVGA, 800 x 480 pixels, 16-bit color 

Aspect Ratio 

16:9 

Orientation Landscape 

Backlighting 

LED, 400-500 cd/mC (50,000 h lifetime)  

Microprocessor 

Freescale IMX.31 32bit, 400 MHz 

Operating System 

QNX operating system 

Flash Memory 

2 GB 

RAM 

128 Mbytes SDRAM 

Operating Voltage 

8 - 35 VDC, protected against reverse polarity and load-dump 

Power Consumption 

10 W full backlight 
22 W full backlight with heater (< -10º C) 

CAN 

3 CAN ports according to CAN specification 2.0B. 
One port isolated according to NMEA 2000 (GPS) 

RS-485 

1 MODBUS Master port at 38.4 Kbaud 

Protocols 

J1939, NMEA 2000 

Connection 

5 Deutsch DT04-6P 6-pin connectors 

Keyboard 

10 tactile buttons 

USB 

USB 2.0 host (full speed) 

Inputs 

(3) 0-4 VDC Analog inputs 
(1) input configurable to support measurement frequencies from 2 
Hz-10 kHz  

Video Input 

NTSC/PAL 

Output 

Digital, capable of sinking 500mA 

Environmental  

Certifications 
(Model HV750 only) 

ABS Type Approved display for Marine and Offshore Applications on 
ACC, ACCU, and ABCU Classed vessels 

Operating Temperature  -40ºC to +85ºC (-40ºF to 185ºF) 

Storage Temperature 

-40ºC to +85ºC (-40ºF to 185ºF) 

Protection 

IP67, front and back 

Emissions 

IEC 60945, 95/54/EC 

Immunity 

SAE J1113, ISO 11452 

Vibration 

Random vibration, 7.86 G

rms

 (5.2000 Hz), 3 axis 

Shock 

+/- 50G in 3 axis