ENMET MX-2100 - Manual (Page 10)

MX2100 ENMET Corporation
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3.4 Scrolling Through Stored Parameters
When the instrument is in normal operating mode, you can view real-time gas measurements and the instrument internal data
(battery voltage, date and time).
With the instrument in normal operating mode, press the Backlight switch repeatedly to scroll through the parameters for each
measuring channel.
Sequence Parameter
1 Display Backlight and Date display
2 Current location: name and date
This line is displayed if the instrument is equipped with the Location option. See Section 3.9
3 Remaining Battery Life
4 Alternating Display: Current measurements minimums detected by each channel
5 Alternating Display: Current measurements maximums detected by each channel
6 Alternating Display: Current measurements STEL of each Toxic channel
7 Alternating Display: Current measurements TWA of each Toxic channel
8 The message: “Enter Maintenance Code”
This is the access to the MX-2100 maintenance mode. To enter the maintenance mode See Section 4.0
If code entered is incorrect the instrument will return to normal operating mode.
To exit the list before the end: press the Audio switch to return to the normal operation mode.
3.5 Alarms
Visual alarms: messages in uncoded mode on the display, indicator lights
Audio alarms: buzzer and vibrator.
Types of alarms:
•
Alarm 1: two-tone slow
•
Alarm 2: two-tone fast
•
Fault: single-tone
3.5.1 Gas Alarms
Depending on the programming used and the type of gas, the "gas alarms" can be triggered on exceeding a preset value:
• 2 instantaneous thresholds per channel for Combustible, Toxic or Oxygen. These thresholds are adjustable.
See Table 4 for factory settings
• High and low thresholds on Oxygen channel (2 low thresholds on option),
• 1 instantaneous threshold on the Catharometric channel, if installed,
• Exposure limit (STEL) corresponding to a sliding average over 15 minutes for each channel equipped with a toxic gas sensor,
• Mean exposure (TWA) corresponding to a sliding average over eight hours for each channel equipped with a toxic gas sensor.
As soon as the predefined alarm thresholds are exceeded on at least one channel, the MX-2100 triggers an audio and light
signal. The alarm message or messages (FAULT, ALARM, TWA, STEL, min., etc.) and the measurement value in the
corresponding field appear on the display.