Contents MultiExact Gas Analyser
5.4.5 Adjusting the backlight timer.................................................................... 39
5.4.6 Setting the clock ...................................................................................... 39
5.4.7 Changing regional settings ...................................................................... 40
5.4.8 Selecting communications type ............................................................... 40
5.5 Setting up automatic validation/calibration (option) ...................................... 41
5.5.1 Overview of automatic validation/calibration ........................................... 41
5.5.2 Automatic validation/calibration sequence .............................................. 42
5.5.3 Remote calibration or automatic validation/calibration ............................ 45
5.5.4 Automatic validation/calibration target and tolerance .............................. 46
5.5.5 Automatic validation/calibration type and mode ...................................... 47
5.5.6 Automatic validation/calibration phases .................................................. 47
5.5.7 Automatic validation/calibration timers .................................................... 49
5.6 Calibration linking ......................................................................................... 50
5.7 Configuring and using the mA outputs (option) ............................................ 51
5.7.1 Overview .................................................................................................. 51
5.7.2 Introduction to the mA output parameters ............................................... 51
5.7.3 Setting up the mA output parameters ...................................................... 53
5.7.4 Calibrating the mA output ........................................................................ 56
5.8 Configuring and using the voltage outputs (option) ...................................... 57
5.8.1 Overview .................................................................................................. 57
5.9 Correcting O
2
measurements for background gases (purity or control only) 57
5.9.1 Overview of measurement errors ............................................................ 57
5.9.2 Entering a cross-interference (X-Interference) compensation ................ 58
5.10 Selecting display units .................................................................................. 58
5.11 Configuring the measurement alarms .......................................................... 60
5.11.1 Alarm modes and levels .......................................................................... 60
5.11.2 Latching/non-latching alarms ................................................................... 62
5.11.3 Hysteresis levels ...................................................................................... 62
5.11.4 Viewing the measurement alarm status .................................................. 63
5.12 Setting up the flow alarm (option) ................................................................. 64
6 CALIBRATION .............................................................................................. 66
6.1 Manual calibration ......................................................................................... 66
6.2 Automatic validation/calibration .................................................................... 68
6.2.1 Initiating an automatic validation/calibration ............................................ 68
6.2.2 Automatic validation/calibration status indications .................................. 69
6.2.3 Stopping an automatic validation/calibration ........................................... 70
6.2.4 Viewing validation/calibration history ....................................................... 71
6.3 Calibrating the pressure transducer (O
2
purity only) .................................... 72
6.4 Calibrating the flow alarm (option) ................................................................ 73
7 GENERAL OPERATION .............................................................................. 74
7.1 Checking the relay signal outputs ................................................................. 74
7.2 Pressure Compensation (O
2
purity and control only) ................................... 75
7.2.1 Introduction .............................................................................................. 75
7.2.2 Switching pressure compensation on/off ................................................. 75
7.2.3 Viewing pressure effected measurements (option) ................................. 76
7.3 Viewing flow levels (option) .......................................................................... 76
7.4 Checking the mA output (option) .................................................................. 77
7.5 Checking the voltage output (option) ............................................................ 77
ii 05410001A / Revision 6
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