Functional Check - WIKA MG-1 Betriebsanleitung

6. Commissioning, operation
Types of sealing
per EN 837
EN
Making the electrical connection
Ground the pressure sensor via the process connection.
■
This is Protection Class 3 equipment for connection at low voltages, which are separated from the power supply or
■
voltage by greater than AC 50 V or DC 120 V. Preferably, a connection to an SELV or PELV circuit is recommended;
alternatively protective measures from HD 60346-4-41 (DIN VDE 0100-410).
Option for North America: The connection can be made in line with "Class 2 Circuits" or "Class 2 Power Units" in
■
accordance with CEC (Canadian Electrical Code) or NEC (National Electrical Code).
Select a cable diameter that matches the cable gland of the plug. Make sure that the cable gland of the mounted
■
plug has a tight fit. To guarantee the ingress protection, tighten the gland.
For cable outlets, make sure that no moisture enters at the cable end.
■

Functional check

The output signal must be proportional to the prevailing pressure. If this is not the case, this may indicate
a damaged membrane. In this case, see chapter "8. Faults".
WARNING!
■
■
■
CAUTION!
When touching the pressure sensor, please note that the surfaces of the device components can
become hot during operation.
16
Only open the connections once the system has been depressurised
Observe the working conditions in accordance with chapter "3. Specifications".
Always operate the pressure sensor within the overpressure safety range.
per DIN 3852-E
WIKA operating instructions, model MG-1
NPT, R and PT
Self-sealing thread typ