HEM8500 Engine CAN Monitoring Controller User Manual Page 40 of 45
11
INSTALLATION
11.1
INSTALLATION METHOD
1)
The module is held into the panel fascia using the supplied fixing bolts.
2)
Use 4 pieces of M4 screws and nuts fixed on the 4 corresponding screw holes.
3)
Care should be taken not to over tighten the screws of fixing screws.
11.2
OVERALL DIMENSION AND PANEL CUTOUT
Unit: mm
Fig. 7 Overall Dimensions and Panel Cutout
HEM8500 controller can suit for wide range of battery voltage DC (10~35) V. Negative of battery
must be connected with the shell of engine. The wire’s diameter of battery negative and positive, which
is connected to B+ and B- of controller power must be over 2.5mm
2
. If floating charger configured,
please firstly connect output wires of charger to battery’s positive and negative directly, then, connect
wires from battery’s positive and negative individually to controller’s positive and negative input ports in
order to prevent charger disturbing the controller’s normal working.
a)
Output And Expand Relays
All outputs of controller are relay contact output type. If it needs to expand the relays, please add
freewheel diode to both ends of expand relay’s coils (when coils of relay have DC current) or, increase
resistance-capacitance return circuit (when coils of relay have AC current), in order to prevent
disturbance to controller or other's equipment.
b)
Withstand Voltage Test
When controller had been installed in control panel, if it needs the high voltage test, please
disconnect controller’s all terminal connections, in order to prevent high voltage into controller and
damage it.
