Dräger X-am 2000 User Manual

8
 Press and hold the [+] key for approx. 3 seconds until
the countdown »3.2.1« shown in the display has
elapsed.
– The remaining operating time (not in the case of Dräger
X-am 2000) is displayed, for example » d 730 « (remai-
ning operating time 730 days).
– After that, the device is automatically switched off again.
You can switch it on again at any time by pressing the
[OK] key.
Operation
Switching on the device
 Press and hold the [OK] key for approx. 3 seconds until
the countdown »3.2.1« shown in the display has ex-
pired.
– All the display segments, including the visual, audible
and vibration alarms, are activated for a short time.
– The software version is displayed.
– The device performs a self-test.
– The remaining operating time is displayed, e.g.
» d 730 « (remaining operating time 730 days). This ap-
plies to Dräger X-am 1700 and if the service life is ac-
tivated in Dräger X-am 2000.
– All alarm setpoints A1 and A2 as well as »« (TWA)
1)
and »« (STEL)
1)
for H
2
S and CO are displayed in
succession.
– The time until the calibration interval expires is displayed
in days, e.g. » CAL 73 «.
– During the running-in period of the sensors, the respec-
tive display of the measured value flashes and the spe-
cial symbol »« (for warning) is displayed. No alarms
are issued during the running-in period of the sensors.
 Press the [OK] key to cancel the display of the activation
sequence.
Switching off the device
 Press and hold the [OK] key and the [+] key simulta-
neously until the countdown »3.2.1« shown in the
display has elapsed.
– Before the device is switched off, the visual, audible and
vibration alarms are activated for a short time.
Before entering the workplace
____________
1) Only when activated in the device configuration. Delivery status: not
activated.
WARNING
Check the display and, if necessary, calibrate the instru-
ment and check all alarm elements before carrying out
safety relevant measurements. A bump test must be per-
formed according to the national regulations.
 Switch on the device, the current measured values are
shown in the display.
– Observe any warning »« or fault messages »«.
 Check that the gas inlet opening on the device is not co-
vered.
During operation
– The measured values for every measured gas are dis-
played during operation.
– If a measuring range is exceeded or if a negative drift oc-
curs, the following display is shown instead of the meas-
ured value display:
»« (concentration too high) or »« (nega-
tive drift) or »« (blocking alarm).
– If the concentrations of combustible materials are too
high, this may result in a lack of oxygen.
–For O
2
concentrations below 8 vol. % a fault is indicated
for the Ex channel as » « instead of the measure-
ment, if the measurement is below the pre-alarm thres-
hold.
– In the event of an alarm, the corresponding displays, the
visual, audible and vibration alarms are activated – see
Chapter “Identifying alarms”.
After the measuring range of the TOX measuring channels
has been exceeded temporarily (up to one hour), checking
the measuring channels is not necessary.
The instrument can still be used in a normal man-
ner. The icon shall disappear during the work shift. If
this is not the case, maintance is required.
The instrument is not ready for use. Maintanance is
required.
WARNING
The presence of catalyst poisons in the measured gas
(e.g. volatile silicone, sulphur, heavy metal compounds or
halogenated hydrocarbons) can damage the CAT Ex
sensor. If the CAT Ex sensor cannot be calibrated to the
target concentration anymore, the sensor must be
replaced.
The Cat Ex sensor may show incorrect results in an oxy-
gen-poor atmosphere.
Electrical operating safety (explosion protection) is not
guaranteed in an oxygen enriched atmosphere.
WARNING
When using a CatEx sensor in the Dräger X-am 1700/
2000, the zero point and sensitivity must be adjusted
after any extreme impact loading that results in a fresh air
display not equal to zero.
Identifying alarms
An alarm is displayed visually, audibly and through vibra-
tion in a specific pattern.
Concentration pre-alarm A1
The pre-alarm A1 is not self-latching and disappears when
the concentration has dropped below the alarm setpoint
A1.
In the case of A1 a single tone is audible and the alarm
LED flashes.
In the case of A2 a double tone is audible and the alarm
LED flashes twice.
Acknowledging a pre-alarm:
 Press the [OK] key, only the audible alarm and the vi-
bration alarm are switched off.
Concentration main alarm A2
After leaving the area, if the concentration is less than the
alarm setpoint A2.
 Press the [OK] key, the alarm messages are switched
off.
If the measuring range is exceeded significantly on the
CatEx channel (very high concentration of flammable
materials), a blocking alarm is triggered. This CatEx block-
ing alarm can be acknowledged manually by switching the
device off and back on again in fresh air.
The alarm is indicated by an inter-
mittent alarm message:
Display »A1« and measured value
alternating: not for O
2
!
The alarm is indicated by an inter-
mittent alarm message:
Display »A2« and measured value alternating.
For O
2
: A1 = oxygen deficiency
A2 = oxygen excess
WARNING
Leave the area immediately. You are in mortal danger! A
main alarm is self-latching and cannot be acknowledged
or cancelled.

Dräger X-am 2000 Specifications

General

Brand	Dräger
Model	X-am 2000
Category	Measuring Instruments
Language	English