Honeywell MDA Scientific MIDAS Quick Start Manual

Gas detector sensor cartridge installation

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Quick Start Guide

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MDA Scientiﬁc MIDAS

Sensor Cartridge Installation

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2. Sensor cartridge fitting/

replacement

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Diagram 1.

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Removing detector cover

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1. Introduction

The MIDAS

sensor cartridge is supplied separately

and needs to be fitted to the detector's main chassis.

Before installing a sensor cartridge check that the

number on the sensor cartridge label matches the

gas type and range for the function required. All

sensor cartridges are supplied calibrated.

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Some MIDAS

sensor cartridges are capable of monitoring for more

than one type of gas. For details of how to set the

different gas types for a multi gas sensor cartridge refer to the

MIDAS

operating manual MIDAS-A-001.

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NOTE: To avoid potential contamination of the gas sensing

surface, avoid handling the sensor cone. Hold sensor cartridge

by the locking tabs. Avoid exposure to dust, grease or any other

chemical contaminants.

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Diagram 2.

Removing sensor cartridge

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Diagram 3.

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Fitting/replacing sensor cartridge

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Diagram 4.

Refitting detector cover

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For further details refer to the MIDAS

MIDAS-A-001.

2. Sensor cartridge fitting/

1. Unscrew the captive thumbscrew located on the front panel

and remove the cover by pulling it forwards off the main chassis

(see diagram 1). Switch power off using the power switch

on the backplane of the unit.

2. Ensure the power switch on the terminal module is in the

'off' position.

3. Remove the old sensor cartridge from the unit (if fitted) by

unclipping the two sensor cartridge locking tabs located either

side of the sensor cartridge and using them to firmly pull

the sensor cartridge out (see diagram 2).

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4. Fit the new sensor cartridge by aligning the pins at the top

of the sensor cartridge with the socket in the sensor cartridge

chamber.

5. Carefully push the sensor cartridge into the sensor cartridge

chamber until fully home and lock in place using the tabs

either side of the sensor cartridge (see diagram 3).

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6. Switch the power switch located on the terminal board

to the 'on' position.

7. Refit the detector's cover by aligning the slots either side

with the locating tabs on the mounting bracket assembly

and

pushing the cover horizontally until home.

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8. Tighten the thumbscrew located on the front panel

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(see diagram 4).

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Find out more

www.honeywellanalytics.com

Customer business centre

Europe and the rest of the world

Honeywell Analytics AG

Wilstrasse 11-U11

CH-8610 Uster

Switzerland

Tel: +41 (0)44 943 4300

Fax: +41 (0)44 943 4398

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[email protected]

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Customer business center

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A mericas

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Honeywell Analytics Distribution, Inc.

400 Sawgrass Corporate Pkwy

Suite 100

Sunrise, FL 33325

USA

Tel: +1 954 514 2700

Toll free: +1 800 538 0363

Fax: +1 954 514 2784

[email protected]

www.honeywell.com

operating manual

replacement

Issue1.1 12/2005

H_MIDAS-A-021_V1

Honeywell MDA Scientific MIDAS Quick Start Manual

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