Connecting The Instrument To The Electric System - WIKA MH-3 Mode D'emploi

5. Commissioning, operation
Mounting the instrument
The max. torque depends on the mounting point (e.g. material and shape).
If you have any questions, please contact our application consultant.
EN
→ For contact details see chapter 1 "General information" or the back
1. Seal the sealing face (→ see "Sealing variants").
2 At the mounting point, screw the pressure sensor in hand-tight.
.
3 Tighten with a torque spanner using the spanner flats.
.

5.2 Connecting the instrument to the electric system

Requirements for voltage supply
Supply voltage see chapter 9 „Specifications".
Requirements for electrical connection
Cable diameter matches the cable bushing of the mating connector.
■
Cable gland and seals of the mating connector are correctly seated.
■
With cable outlets, no humidity can ingress at the cable end.
■
Requirement for shielding and grounding
The pressure sensor must be grounded via the process connection (model MH-3).
■
The connection is made in the vehicle with a suitable power supply/control unit that
■
complies with regulation 10. (MH-3-HY).
The connection to vehicle ground is made via the process connection (MH-3-HY).
■
In accordance with EN 61326-1, in case of outdoor installations, faults caused by surge
voltages must be considered. To protect the instrument, it must be connected using
a shielded cable. The shield of the cable must be connected on at least one side to
ground or a suitable reference potential. Optionally, a suitable external measure can be
taken to ensure protection against surge voltages.
Connecting the instrument
1. Assemble the mating connector or cable outlet.
→ See "Pin assignments"
2 Establish the plug connection.
.
Pin assignments
See chapter 9 "Specifications".
10
page of the operating instructions.
WIKA operating instructions, OEM pressure sensor, model MH-3