Table of Contents
1.0 INTRODUCTION........................................................................................................1
1.1 Unpack.................................................................................................................................................1
1.2 Check Order.......................................................................................................................................1
1.3 Serial Numbers...................................................................................................................................1
2.0 FEATURES..............................................................................................................2
3.0 INSTALLATION ........................................................................................................3
3.1 Control Unit Mounting and Power Hook-up................................................................................3
3.1.1 Converting to 220VAC Power............................................................................................4
3.2 Oxygen Cell Installation...................................................................................................................5
3.2.1 Oxygen Cell Installation Inside of Control Unit..............................................................5
3.2.2 Remote Sensor Assembly Wiring.........................................................................................6
3.2.3 Oxygen Cell Installation for Remote Sensors...................................................................8
3.2.4 Oxygen Gain Adjustment......................................................................................................8
3.2.5 Circuit board Removal.........................................................................................................8
3.2.6 Intrinsic Safety.......................................................................................................................9
3.3 Relay Outputs.....................................................................................................................................9
3.3.1 Non-Latching Relays...........................................................................................................10
3.3.2 Latching Relays....................................................................................................................10
4.0 OPERATION..........................................................................................................11
4.1 Rough Test........................................................................................................................................11
4.2 Precautions Regarding the Cell.....................................................................................................11
4.3 Atmospheric Pressure Variations..................................................................................................11
4.4 Temperature Variations..................................................................................................................11
5.0 MAINTENANCE......................................................................................................12
5.1 Cell Aging.........................................................................................................................................12
5.2 Cell End-of-Life...............................................................................................................................12
5.3 Circuit Alignment............................................................................................................................12
5.4 Circuit Breakers / Fuse...................................................................................................................14
6.0 ISA-40 SPECIFICATIONS ........................................................................................15
7.0 SERVICE INFORMATION..........................................................................................15
7.1 Replacement Part Numbers...........................................................................................................15
7.2 Return for Repair.............................................................................................................................16
8.0 WARRANTY.......................................................................................................17
List of Illustrations
FIGURE 1: ISA-40 CONTROL UNIT EXTERIOR................................................................................2
FIGURE 2: MOUNTING DIMENSIONS..............................................................................................3
TABLE 1: POWER SUPPLY WIRING ..............................................................................................3
FIGURE 3: OXYGEN CELL INSTALLATION......................................................................................5
TABLE 2: REMOTE SENSOR ASSEMBLY WIRING (WITHOUT INTRINSIC SAFETY BARRIER)......................6
TABLE 2A: REMOTE SENSOR ASSEMBLY WIRING(WITH INTRINSIC SAFETY BARRIER)..........................6
FIGURE 4: INTERIOR VIEW OF SENSOR ASSEMBLY.........................................................................7
FIGURE 5: REMOTE SENSOR OXYGEN CELL INSTALLATION (OPTIONAL)............................................8
FIGURE 6: UTILIZING THE RELAY CONTACTS.................................................................................9
TABLE 3: NON-LATCHING RELAY WIRING...................................................................................10
TABLE 4: LATCHING RELAY WIRING..........................................................................................10
FIGURE 7: LOCATION OF CIRCUIT BOARDS, TEST POINTS AND POTENTIOMETERS.............................12
NOTE:[important information about use of instrument]
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.]
