ENMET MEDAIR 2200 - Manual (Page 2)

Table of Contents
1.0 I NTRODUCTION ........................................................................................................................................................... 1
1.1 Unpack ................................................................................................................................................................................ 1
1.2 Check Order ........................................................................................................................................................................ 1
1.3 Serial Numbers .................................................................................................................................................................... 1
2.0 I NSTRUMENT F EATURES .............................................................................................................................................. 2
2.1 Exterior Features ................................................................................................................................................................. 2
2.2 Display Panel Features ........................................................................................................................................................ 2
2.3 Circuit Board Features ........................................................................................................................................................ 4
3.0 I NSTALLATION ............................................................................................................................................................ 5
3.1 Mounting of Instrument ...................................................................................................................................................... 5
3.2 Sample Air Supply .............................................................................................................................................................. 6
3.3 Power Supply ...................................................................................................................................................................... 6
3.4 Outputs ................................................................................................................................................................................ 6
3.4.1 Relay Contacts ......................................................................................................................................................... 7
3.4.2 Optional 4-20mA Outputs ........................................................................................................................................ 8
3.5 Installation Verification....................................................................................................................................................... 8
4.0 O PERATION ................................................................................................................................................................ 9
4.1 Normal Operation Condition ............................................................................................................................................... 9
4.2 Alarm Set Points ................................................................................................................................................................. 9
4.3 Alarm Latching or Differential Settings ............................................................................................................................ 10
4.4 Audio Defeat ..................................................................................................................................................................... 10
4.5 Display .............................................................................................................................................................................. 10
4.6 Operational Menu.............................................................................................................................................................. 11
4.7 Fault Indications ................................................................................................................................................................ 12
4.7.1 Low Flow Indication .............................................................................................................................................. 12
4.7.2 Other Fault Indications .......................................................................................................................................... 12
4.8 Dew Point Sensor Response .............................................................................................................................................. 12
4.9 Hydrocarbon Sensor Response .......................................................................................................................................... 12
5.0 M AINTENANCE .......................................................................................................................................................... 13
5.1 Cleaning Instructions ........................................................................................................................................................ 13
5.2 Maintenance Menu ............................................................................................................................................................ 13
5.2.1 Accessing Maintenance Menu ................................................................................................................................ 13
5.2.2 Maintenance Menu Flow Chart .............................................................................................................................. 14
5.3 Calibration for CO, O
2,
HC and CO
2
(Gas Channels) ........................................................................................................ 15
5.3.1
A Low Cal/ZeroCal Adjust....................................................................................................................................... 16
5.3.1
B High Cal/SpanGas Adjust .................................................................................................................................... 16
5.3.2 Set 4 –20mA Transmitter Scale .............................................................................................................................. 17
5.3.3 Set Alarm Points ..................................................................................................................................................... 18
5.3.4 Set Alarm Delay ..................................................................................................................................................... 20
5.3.5 Relay Configuration ............................................................................................................................................... 21
5.3.6 Failsafe Configuration ........................................................................................................................................... 22
5.3.7 Set Output Span Range ........................................................................................................................................... 22
5.3.8 Set New Password .................................................................................................................................................. 23
5.3.9 Exit Maintenance Menu .......................................................................................................................................... 23
5.4 Sensor Replacement .......................................................................................................................................................... 24
5.4.1 Oxygen / Gas Sensor .............................................................................................................................................. 24
5.4.2 Calibration/Sensor Replacement ............................................................................................................................ 24
5.4.3
A Low Cal/ZeroCal Adjust....................................................................................................................................... 26
5.4.3
B High Cal/SpanGas Adjust .................................................................................................................................... 26
5.5 Dew Point Sensor .............................................................................................................................................................. 27
5.6 Flow Control Orifice / Pre-filter ........................................................................................................................................ 27
6.0 T ECHNICAL D ATA AND S PECIFICATIONS ...................................................................................................................... 28
7.0 R EPLACEMENT P ART N UMBERS ................................................................................................................................. 29
7.1 ENMET part numbers for sensors and replacement parts: ................................................................................................. 29
7.2 ENMET part numbers for Calibration equipment: ............................................................................................................. 29
8.0 WARRANTY .......................................................................................................................................................... 30
A PPENDIX A: CO C HARACTERISTICS ............................................................................................................................... 31
A PPENDIX B: G AS I ONIZATION P OTENTIALS ...................................................................................................................... 32