Teledyne 2240 – Portable Handheld Hydrogen Leak Detector, 2nd generation - Manual (Page 9)

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6. Configuring the 2240
The 2240 can be easily configured to best fit the needs of
the operator. The following section describes how to
program the instrument.
• With the system in Run Mode (LED is green), hold down
both the “Mode” and “Enter” buttons for 2 seconds.
• The system will beep three times, then display “Change
Config?” with a “Yes” and a “No” selection provided.
(The word “Yes” appears above the Enter button and “No”
above the Mode button). Press Yes (Enter button) to switch
the system to Configuration Mode.
• Alternatively, press No (Mode button) to return to Run
Mode.
• Once “Yes” is activated, the LCD displays “Alarm
Setpoint”. The LED changes to yellow, indicating a non-
operating mode.
• Use the Scroll Up and Scroll Down buttons to select the
desired Configuration Mode. The modes are listed below,
and explanations for each follow:
• Alarm Setpoint
• 0-5 Volt Configuration
• Analog Full Scale
• Backlight
• Controller Firmware Version
• Alarm Setpoint – this function is used to specify the
hydrogen concentration level required to activate the
audible Alarm. Should hydrogen in air reach a
concentration that triggers the Alarm, the operator
receives 1 audible warning beep twice per second.
• Press the Enter button when “Alarm Setpoint” is
displayed. The default setting of 2.0% hydrogen is
displayed.
• Press the Scroll buttons to incrementally change the
selected digit.
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• Press the Mode button to select the digit to change.
• Press the Enter key to set the displayed number into
memory, and return to the Configuration Mode.
• 0-5 Volt Config – abbreviation for 0 to 5 V Analog Output
Configuration Mode.
• Press the Enter button when “0-5 Volt Config” is
displayed. The default setting of 0-5 Volt is displayed.
• Press the Scroll buttons to view the available formats.
When the desired format is displayed, press the Enter
button to configure
2240LD to the indicated format.
• Alternatively, press the Mode button to return to the
Configuration Mode without any changes.
Note: The 4-20 mA is not configurable except for its
full scale setting
• 1-5 Volt Format – The system correlates an increasing
presence of hydrogen to an output of 1 to 5 V. In
“Warm-Up” mode a level of 0.5 V is produced. In
“Error” mode a level of 0 V is produced.
• 0.5-4.5 Volt Format – The system correlates an
increasing presence of hydrogen to an output of 0.5 to
4.5 V. In “Warm-Up” mode a level of 0 V is produced.
In “Error” mode a level of 5 V is produced.
• 0-4 Volt Format – The system correlates an increasing
presence of hydrogen to an output of 0 to 4 V. In “Warm-
Up” mode a level of 4.5 V is produced. In “Error” mode
a level of 5 V is produced.
• 0-5 Volt Format (Default Setting) – The system
correlates an increasing presence of hydrogen to an
output of 0 to 5 V. In “Warm-Up” mode a level of 0 V is
produced. In “Error” mode a level of 5 V is produced.
• Analog Full Scale - abbreviation for Analog Output Full
Scale Setting. The operator uses this function to specify
the correlation between the Analog Output Port full scale,