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Table of Contents

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SafeCheck 200 Operator’s Manual

OPERATIONAL FLOW DIAGRAMS .........................................................1

1. INTRODUCTION...................................................................................4

2. GENERAL OVERVIEW........................................................................5

2.1 Unit Overview ..................................................................................5

2.2 The Keys .........................................................................................6

2.3 Backlight .........................................................................................7

2.4 Alarm and Level Definition..............................................................7

2.4.1 Oxygen Alarm Levels ............................................................7

2.4.2 Combustible Gas Alarm Levels .............................................7

3. OPERATION .........................................................................................9

3.1 Turning the Unit ON .......................................................................9

3.2 Turning the Unit OFF......................................................................9

3.3 User Modes .....................................................................................9

3.3.1 Pass/Fail ...............................................................................10

3.3.2 Basic Mode ..........................................................................10

3.4 Main Menu ..................................................................................10

3.4.1 Run ......................................................................................11

3.4.2 Zero......................................................................................12

3.4.3 Setup ....................................................................................13

3.4.4 Calibration............................................................................15

4. Quest Sensor INFORMATION .............................................................20

4.1 Changing or Installing the Sensors .................................................20

5. BATTERY INFORMATION.................................................................21

5.1 Replacing or Installing the Batteries...............................................21

5.2 Low Battery Warnings....................................................................22

5.3 Recharging NiCAD & NiMH Battery Packs .................................22

5.4 Servicing Alkaline Battery Packs ..................................................23

5.5 Unit Storage With & Without Batteries..........................................24

6. FACTORS AFFECTING RESPONSE.................................................25

6.1 Combustible Gas.............................................................................25

6.1.1 Rich Atmospheres................................................................25

6.1.2 Oxygen Dependence .............................................................25

6.1.3 Pocketing .............................................................................25

6.1.4 Combustible (% LEL) Relative Sensitivity ..........................26

6.2 Oxygen .......................................................................................26

Table of Contents

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SafeCheck 200 Operator’s Manual

7. GAS SPECIFIC DATA ..........................................................................27

8. SPECIFICATIONS.................................................................................28

9. SafeCheck 200 ACCESSORIES ............................................................29

9.1 Replacement Quest Sensors............................................................29

9.2 Accessories ....................................................................................29

9.3 Calibration Kit ................................................................................30

9.4 Regulators ......................................................................................30

9.5 103 Liter Steel Cylinder Calibration Gases ...................................30

10. MultiCharger II ......................................................................................31

11. QTP-2000 SAMPLE-DRAW PUMP.....................................................32

QUEST SERVICE POLICY.........................................................................33

QUEST WARRANTY POLICY...................................................................34

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Quest Products O2/LEL Manuale Utente Pagina 2

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