GLO Multitrend GR, Multitrend SX Installation Manual

43-TV-33-61 iss.4 GLO Jan 21 UK 1

Multitrend GR and SX recorders
Installation Instruction

Transmitter Power Supply Board

Multitrend GR Multitrend SX

This Installation Instruction sheet is intended as a guide for replacing or installing hardware and for setting up
functionality in the recorder. Refer to the User manual for detailed operational requirements.
The Multitrend GR and SX recorders are designed for ease of assembly with minimal disturbance to the rest of the unit.
If unsure, please return the unit to your supplier for repair or upgrade.
Removing the case and opening the back of the recorder should only be performed under the following circumstances:
When an item of hardware requires individual replacement.
When an item of hardware is to be retrospectively fitted.
In all other instances it is recommended that the complete unit be returned to an authorised agent or service centre.
For Agency Approved recorders the product needs to be upgraded or repaired by an Authorized Repair facility

WARNING

HAZARDOUS VOLTAGES

Disconnect all power to the recorder before removing the case and attempting any maintenance procedures.

SAFETY TESTS

Upon completion of service procedures detailed in this manual two basic safety tests should be performed in order to
ensure continued safe operation of the instrument.
Earth Resistance; 25 VDC applied between case and protective earth, bonding resistance should be < 0.1 Ohm.
Insulation Resistance; 500Vdc applied between the earth terminal, and the live and neutral terminal shorted together,
insulation resistance to be >2.0 MOhm. (Mega Ohm, NOT milli Ohm)

Failure to comply with these instructions could result in death or serious injury

CAUTION

OBSERVE ANTI-STATIC PRECAUTIONS

Refer to BS EN61340-5-1: 2001. Basic specification. Protection of electrostatic sensitive devices.
Full anti-static precautions MUST be observed when in contact with the electronics of your recorder.

SAVE DATA, SETUPS AND LAYOUTS

Removal of PCBs and battery back-up will result in the loss of all non-volatile data.
Ensure all data and set-ups are saved.

Failure to comply with these instructions may result in product damage.

43-TV-33-61 iss.4 GLO Jan 21 UK 2

Prerequisite

Before attempting to repair or upgrade a recorder, it is advisable to clear a sufficient work space so components such as
the front panel can be rested on the work surface without getting scratched or damaged.

Panel Mounting

The Transmitter Power Supply Board can be removed, replaced or added to the recorder without removing it from its
mounting panel. If you require the recorder to be removed from the panel, loosen the mounting clamp screws, slide the
clamp towards the rear of the recorder and remove the clamps and the recorder.

Removing the Rear Panel

Removal of the rear panel is necessary for replacement or fitting of the transmitter Power supply card.
To remove the rear panel of the recorder, loosen and remove the two screws (M4 x 8) at the top corners of the rear
panel, taking care to retain both the shake-proof washer and the screw.

Inside the Unit

Refer to Figure 1 for the position of the Power Supply Board

Figure 1: Multitrend Transmitter Power Supply board

Transmitter
Power
Supply
Board