Enmet ISA-44-2OD Instrukcja Użytkownika Pobierz pdf (Strona 3)

Table of Contents

1.0 INTRODUCTION................................................................................................................................1

1.1 Unpack................................................................................................................................................................................ 1

1.2 Check Order....................................................................................................................................................................... 1

1.3 Serial Numbers .................................................................................................................................................................. 1

1.4 Read Manual...................................................................................................................................................................... 1

2.0 FEATURES AND CONTROLS OF THE ISA-44-2-OD ................................................................................2

2.1 Standard Calibration ......................................................................................................................................................... 2

2.2 External Features............................................................................................................................................................... 3

2.3 Internal Circuitry of the ISA-44-2-OD .......................................................................................................................... 4

3.0 INSTALLATION ................................................................................................................................7

3.1 Power Hook-Up and Mounting of Control Unit ISA-44-2-OD................................................................................. 7

3.2 Sensor Location................................................................................................................................................................. 8

3.3 Sensor Hook-up................................................................................................................................................................. 9

3.4 Sensor Heater Voltage.................................................................................................................................................... 11

3.5 Oxygen Cell Adjustment................................................................................................................................................ 11

4.0 OPERATION..................................................................................................................................12

4.1 Warm-Up .......................................................................................................................................................................... 12

4.2 Operation Condition ....................................................................................................................................................... 12

4.3.1 Precautions...........................................................................................................................................................12

4.4 Rough Test....................................................................................................................................................................... 13

5.0 MAINTENANCE..............................................................................................................................14

5.1 Routine Gas Test............................................................................................................................................................. 14

5.2 Calibration........................................................................................................................................................................ 16

5.2.1 Toxic Gas Channel # 1 .......................................................................................................................................16

5.2.2 Oxygen Channel # 2 ............................................................................................................................................18

5.2.3 Combustible Gas Channel # 3...........................................................................................................................19

5.3 Replacement of Sensors................................................................................................................................................. 20

Gas Sensors.....................................................................................................................................................................20

Oxygen Cell ....................................................................................................................................................................20

5.4 Trouble Shooting............................................................................................................................................................. 21

6.0 REPLACEMENT PART NUMBERS ......................................................................................................22

7.0 SPECIFICATIONS ...........................................................................................................................22

8.0 WARRANTY...............................................................................................................................23

List of Figures and Tables

FIGURE 1: EXTERNAL FEATURES OF THE ISA-44-2-OD..............................................................................3

FIGURE 2: INTERNAL CIRCUITRY FEATURES OF THE ISA-44-2-OD...............................................................4

FIGURE 3: CIRCUITRY PC1 CHANNELS 1 AND 2 ........................................................................................5

FIGURE 4: CIRCUITRY PCB 3 CHANNEL 3................................................................................................6

FIGURE 5: MOUNTING DIMENSIONS ISA-44-2-OD.....................................................................................7

TABLE 1: HEAVIER THAN AIR..................................................................................................................8

TABLE 2: LIGHTER THAN AIR..................................................................................................................8

TABLE 3: SAME DENSITY AS AIR.............................................................................................................8

FIGURE 6: OXYGEN CELL ENCLOSURE.....................................................................................................8

FIGURE 7: INTERNAL VIEW OF SENSOR WIRING.........................................................................................9

TABLE 4: RECOMMENDED WIRE GAUGE...................................................................................................9

TABLE 5: RELAY FUNCTION .................................................................................................................10

FIGURE 8: SUGGESTED RELAY HOOK-UP CONFIGURATION .......................................................................10

FIGURE 9: EXPOSING A SENSOR TO TEST OR CALIBRATION GAS ...............................................................14

TABLE 7: APPROXIMATE ALARM TIME...................................................................................................15

Reference information:

NOTE: [important information about use of instrument – if not followed may have to redo some steps.]

CAUTION: [affects equipment – if not followed may cause damage to instrument, sensor etc…]

WARNING: [affects personnel safety – if not followed may cause bodily injury or death.]

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