ENMET EX-2000 User Manual
Page 9
EX2000
ENMET Corporation
5
3.1.1 Alarms
Audio and visual alarms will activate in pulsed or continuous, to indicate the type of alarm being triggered. The display will
indicate the threshold or code of the alarm. To clear a threshold alarm after leaving the dangerous area, press and release the
ALARM
switch.
N
OTE
:
If the alarm threshold is still exceeded: The visual alarm will continue to flash and the threshold pictogram will remain
indicated.
Fault alarms are not able to be cleared, see fault alarms table for possible remedies.
Threshold Alarms:
Pulsed audio alarm can be cleared by pressing the
ALARM
switch
▲
Alarm Type
Alarm Indication
Parameters
Threshold 1
Display:
XXX
%
Audio : 1 beep every 2 seconds
Adjustable from 0 – 60% LEL
instantaneous alarm
(adjustable)
Threshold 2
Display:
XXX
%
Audio: 1 beep per second
Fixed at 60 % LEL
(factory set, not adjustable)
Over-range
SUP; continuous audio alarm
See fault alarms table
Fault Alarms:
Continuous audio alarm can not be cleared
Display
Possible Cause
Possible Remedy
Display: BAT
Batteries discharged:
The instrument can no longer operate
Turn instrument off and recharge the
batteries
Display: SUP
Measurement range is exceeded
Leave contaminated area and allow
sensor to stabilize in clean air.
1DEF
The cell zero has drifted out of spec
Calibrate
2DEF
The cell is too sensitive
Calibrate
4DEF (on small digits)
Expired Cell (sensitivity too low)
Replace cell and calibrate
8DEF
The EE
PROM
of the instrument is not
initialized
Return to
ENMET
for initialization
512DEF
Problem in the calculations, capacity
exceeded
Return to
ENMET
16DEF
Measurement to negative
Calibrate
May need to replace cell and calibrate
64DEF
Temperature sensor is damaged
Return to
ENMET
Er45 or Er49
Communication error between the
microprocessor and the cell EE
PROM
•
Disconnect the cell and check the
connection.
•
Replace cell if message persists
•
Return to
ENMET
N
OTE
:
If several faults are simultaneously present, the display corresponds to the sum of faults.
Example: The messages Er 35 or Er 39 show the communication errors between the microcontroller of the apparatus and
the EE
PROM
memory of the device.