ENMET EX-6165 - Manual (Page 19)

EX-6120, 6165 SERIES IR ENMET Corporation
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11.2.6 E : 6 – Decimal Places
The number of decimal places that are used to display the detected gas levels can be changed via this menu option.
• From the menu system select menu option: E: 6 and press ENTER.
•
Using the NEXT and PREVIOUS buttons, select the required number of decimal places.
•
Press ENTER.
N
OTE : Pressing MENU instead of ENTER will exit the menu without changing the number of decimal places to
which the gas level will be displayed.
• Press MENU to close the menu system.
Note that when the sensor type is first selected, the optimum number of decimal places for a given sensor type and range
is automatically selected. Increasing the number of decimal places to which detected gas levels are displayed does not
increase the sensitivity or accuracy of the instrument and in some cases may degrade the instruments perceived stability.
11.2.7 E : 7 – Firmware Version
The Firmware version is displayed in the form X.Xyy, where X is numerical and y is a letter.
• Press MENU to close the menu system.
11.2.8 E : 8 – Sensor Selection
This menu option allows the sensor type to be selected. The available sensor options are listed below:
Table 4: EX-6120, 6165 S ERIES IR Sensor Selections
OPTION TYPE RANGE COMMENTS
CH4L Infrared 0-100%LEL Methane
CH4H Infrared 0-100% v/v Methane
HC Infrared 0-100%LEL General hydro carbons
HHC Infrared 0-100% v/v General hydro carbons
CO2P Infrared 0-5000 ppm Carbon Dioxide
CO2L Infrared 0-5% v/v Carbon Dioxide
CO2H Infrared 0-100% v/v Carbon Dioxide
The sensor type is selected as follows:
• From the menu system select menu option: E: 8 and press ENTER.
•
Using the NEXT and PREVIOUS buttons, select the required sensor.
•
Press ENTER.
N
OTE : Pressing ENTER while in menu option E: 8 will reset the factory defaults for the displayed sensor. A
calibration must be performed even if the sensor type was not changed.
• Press MENU to close the menu system.
N OTE : It is important that the sensor selected via this menu option corresponds to the sensor that is installed. Incorrect
settings here may result in the inability of the instrument to detect gas.
11.2.9 E : 9 – Engineer diagnostics
This feature is a view-only feature. No configuration changes are possible from within this menu.
The information is for use of ENMET Corporation personnel.
• From the menu system select menu option: E: 9 and press ENTER.
•
Using the NEXT button, display the required setting. The displayed values are as follows:
E : 90 Gas level
E : 93 Active sensor A to D counts
• Press MENU to close the menu system.
11.2.10 E : 12 – Cross reference
Contact ENMET Corporation before entering this menu option.
This option is used to allow the user to calibrate the sensor with a commonly available gas (e.g. methane or propane) but use the unit
to detect a different gas (e.g. methanol or acetone etc.). This is achieved by adjusting the cross-reference factor according to the
difference in signal that is detected for the calibration gas compared to the target gas.
• Select menu mode E:12 and press ENTER.
• Using the UP and DOWN buttons set the required cross-reference factor as required.
• Press ENTER to store the new value, Pressing MENU instead of ENTER aborts the feature.
• Press MENU to return the instrument to its standard mode of operation.
N OTE : the default setting of 1.00 is used – no cross sensitivity to target gas.
Contact ENMET Corporation for details.