5
EMR
3
Truck Installation
Installation of the EMR
3
System involves installing the Display Head(s), the Interconnect Box, and any optional
devices (e.g., Remote Pulser, printer, etc.). Figure 1 shows an example dual Display Head installation.
Figure 1. Example EMR
3
Truck Installation with 2 Display Heads and Optional Remote Pulser
DC voltage from vehicle's accessory
circuit - at fuse block or ACC position
of ignition switch
Display Head 1
(Meter 1)
Meter 2
Remote Display Head 2
Top mount
Remote Pulser
Front mount
Remote Pulser
TRUCK CAB
OUTSIDE TRUCK CAB
Data (RS-485)
Data (RS-485)
Power
Data
Power 12 Vdc
Power 12 Vdc
5 Vdc
Pulse Input
NON-HAZARDOUS
LOCATION
emr\tkdia3nosolvlv.eps
(RS-232)
Intrinsically
safe barrier
Printer
Quick disconnect
fittings (optional)
Temp
Probe
Temp
Probe
P/N 331791-001
EPSON TM295 SLIP
(P/N 846000-1XX)
Customer supplied
wiring
The following information is for general reference and is not
intended to replace recommended National Electric Code (NEC)
procedures. It is important for the installer to understand that
wiring located in Class I, Group D, Division 1 and 2 installations
shall comply with the latest appropriate articles found in the
National Electric Code (NFPA 70).
Warning!
24 Vdc
Truck
ground
Control Drawing
Interconnection
Box
Max. cable length
35 ft. (10.6 m)
Max. cable length
1000 ft. (304.8 m)
12 AWG
Barrier
Ground
START
FINISH
MODE PRESET
NEXT
ENTER
VOLUME CURRENCY RATE SETUP
HAZARDOUS LOCATION
START
FINISH
MODE PRESET
NEXT
ENTER
VOLUME CURRENCY RATE SETUP
OR
I.S.
I.S.
I.S.
I.S.
I.S.
I.S.
I.S.
NOTE: Intrinsically safe wiring
(marked ) shall be installed
in accordance with Article 504-20
of the NEC, ANSI/NFPA 70.
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