Oldham MX 32 - Gas Detector and Digital Module Mounting

8
MX 32
Instruction Manual
Wiring
Before installing the controller, cut off the power supply.
Also refer to the Particular Specifications chapter on page 39.
The controller is intended for use in installation areas that meet Class II
overvoltage requirements and Degree 2 pollution requirements.
The electrical connection must be:
■ Performed by a specialist and conform to current regulations in force ;
■ Compliant with NF C 15-100.
Verify the current and the grid power supply (the grid power supply must
correspond to the supply indicated on the controller front plate). The operating
voltage is configured at the factory.
The MX 32 does not have an on/off switch.
Certain power supplies can cause serious or fatal injury. All
installation and wiring should be performed before turning on the
power supply.
Incorrect installation can lead to measurement errors or system
failure, all instructions in this manual must be followed carefully to
guarantee proper system operation.
Ground Connection Protection
The controller must be connected to a functional ground connection.
The ground terminal (yellow) (Figure 4, ref. J) is indicated with the following
symbol: .
The cable used must have a minimum diameter of 1.5 mm² and a maximum
diameter of 2.5 mm².
Refer to the wiring examples beginning on page 11.
Power
The MX 32 must be protected upstream by a differential bipolar circuit
breaker. The response curve must be type D.
Power supply
115 V AC
230 V AC
Differential bipolar circuit
breaker caliber
2 x 2 A
2 x 1 A
The cable used must have a minimum diameter of 1.5 mm² and a maximum
diameter of 2.5 mm².
There are two options for transformers suggested for use as a power supply
for the MX 32.
■ Bobbin transformer (standard default).
■ Toric Transformer (for connecting special sensors such as flame sensors,
etc.).