ENMET OMNI-4000 - Manual (Page 3)

Table of Contents
I NTRODUCTION ............................................................................................................................................................. 1
Organization of the Manual .....................................................................................................................................................1
Using the Manual ................................................................................................................................................................1
To Use the Instrument Immediately .....................................................................................................................................1
Illustrations ..............................................................................................................................................................................1
Upon Receipt, Unpack.............................................................................................................................................................2
Check Order.............................................................................................................................................................................2
Serial Numbers ........................................................................................................................................................................2
1.0 G ENERAL D ESCRIPTION ......................................................................................................................................... 4
1.1 General Characteristics ......................................................................................................................................................4
1.2 Main Components..............................................................................................................................................................4
1.3 Operating the OMNI-4000: In the Field ............................................................................................................................4
1.4 Programming .....................................................................................................................................................................4
1.5 Gas Detection.....................................................................................................................................................................5
1.6 Sensor Readings.................................................................................................................................................................6
1.6.1 Enabled and Disabled Channels.................................................................................................................................7
1.6.2 Memorized Readings...................................................................................................................................................7
1.7 Alarms ...............................................................................................................................................................................7
1.7.1 Gas Alarms .................................................................................................................................................................8
1.7.2 Fault Alarms ...............................................................................................................................................................8
1.7.3 Acknowledging Alarms .............................................................................................................................................10
1.8 Memorization of Readings-Histograms ...........................................................................................................................10
1.9 Data Stored ......................................................................................................................................................................10
1.9.1 Memory Capacity......................................................................................................................................................10
1.9.2 Data Available ..........................................................................................................................................................11
1.9.3 Length of Data Storage.............................................................................................................................................11
1.9.4 Clearing the Stored Data ..........................................................................................................................................11
1.10 Printer or Computer Connection....................................................................................................................................11
1.11 Batteries .........................................................................................................................................................................12
1.12 Smart Block Sensor Assemblies ....................................................................................................................................13
1.13 Intrinsic Safety...............................................................................................................................................................13
2.0 O PERATION ......................................................................................................................................................... 15
2.1 Using the OMNI-4000 .....................................................................................................................................................15
2.1.1 Positioning the Instrument........................................................................................................................................15
2.1.2 Use With a Sampling Probe......................................................................................................................................15
2.1.3 Use with an Integral Sampling Pump .......................................................................................................................15
2.1.4 Use the OMNI-4000 as a Hand-Held or Stationary Beacon ...................................................................................17
2.2 Starting Up.......................................................................................................................................................................17
2.2.1 Standard Start-Up.....................................................................................................................................................18
2.2.2 Start-Up with Selection of Reference Explosive Gas or Vapor.................................................................................18
2.2.3 Selection of Reference Explosive Gas or Vapor .......................................................................................................18
2.2.4 Start-Up with Auto Set ..............................................................................................................................................19
2.2.5 Readings ...................................................................................................................................................................20
2.3 Lighting ...........................................................................................................................................................................20
2.3.1 Displaying the Instantaneous Readings....................................................................................................................20
2.3.2 Automatic Switching to the "0-100% GAS" Range ...................................................................................................21
2.4 Display of Supplementary Data .......................................................................................................................................22
2.4.1 Date and Time...........................................................................................................................................................22
2.4.2 Battery Charge Condition.........................................................................................................................................22
2.4.3 Minimum-Maximum..................................................................................................................................................22
2.4.5 STEL and TWA..........................................................................................................................................................23
2.4.6 Returning to the Operational Mode ..........................................................................................................................23
2.5 Alarms .............................................................................................................................................................................24