Use
7
en
Prerequisites for the manual bump test:
The gas detector is switched on.
A suitable test gas cylinder is available, e.g. a test gas
cylinder (order no. 68 11 130) with the following mixed gas
ratios: 50 ppm CO, 15 ppm H
2
S, 2.5 Vol% CH
4
, 18 Vol%
O
2
To perform a manual bump test:
1. Prepare a Dräger test gas cylinder. The volume flow must
be 0.5 L/min and the gas concentration must be higher
than the alarm threshold concentration that is to be tested.
2. Connect the gas detector and the test gas cylinder to the
calibration adapter.
3. Press the [
▼
] button three times within three seconds to
open bump test mode (if configured). A signal tone sounds.
The notice symbol starts flashing.
4. Press the [OK] button to start the bump test.
5. Open the test gas cylinder valve to let test gas flow over the
sensor.
6. If the gas concentration exceeds the alarm threshold A1 or
A2, the corresponding alarm triggers.
Bump test failed: The gas detector switches to error mode
and displays an error. The error symbol flashes, and an
error code is displayed until the error is confirmed.
Subsequently, instead of the measured value, the
- – –
display and the error symbol appear. In this case, repeat
the bump test or calibrate the gas detector.
Bump test passed:
OK
is displayed until the concentration
is below A1.
The result of the bump test (passed or failed) is saved in the
data logger (see Section 7.1 on Page 13).
4.2.4
Information display
Different information can be displayed when the device is on
and off.
The information display closes automatically after 3 s of
inactivity.
When the gas detector is off:
The following information is displayed:
Gas name, full scale deflection and measurement module.
Duration of use (Pac 6000 always, Pac 6500 and 8x00
depending on the configuration)
Device ID
To display the information:
1. Hold down the [
▼
] button for approx. 1 s while the device
is off.
The gas name, full scale deflection and measurement
module are displayed.
2. Press the [
▼
] button to display the information
consecutively. The information display closes after the
device ID.
When the gas detector is on:
The following information can be displayed depending on the
configuration:
Error codes
Peak concentration
Time-weighted average (TWA
1)
, not for Pac 6000)
Short-term exposure limit (STEL
1)
, not for Pac 6000)
Duration of use (Pac 6000 always, Pac 6500 and 8x00
depending on the configuration)
Device ID
To display the information:
1. Press the [OK] button in measuring mode.
This displays the peak concentration and the symbol for
peak concentration.
2. Press the [OK] button to display the information
consecutively. The information display closes after the
device ID.
4.2.5
Error and warning code displays
If a warning, an error or a notice is pending, the error or notice
symbol flashes and a three-digit error code appears.
To display the error and warning codes:
1. Press the [OK] button.
If there are several pending error or warning codes, the next
error or warning code can be displayed by pressing the [OK]
button.
4.3
During operation
WARNING
Danger to life and/or risk of explosion!
The following alarms indicate a danger to life and/or explosion
hazard:
A2 alarm
STEL or TWA alarm
Device error
►
Immediately leave the hazard area.
The continuous operation of the gas detector is indicated by an
optical and/or acoustic operation signal that is emitted in a 60-
second cycle (configurable using the Dräger CC-Vision Basic
PC software).
The respective measured value is displayed as an alternating
display for dual sensors.
The operation signal must be turned on for measurements
in accordance with EN 45544 (CO, H2S) or in accordance
with EN 50104 (O2).
If the allowable measuring range is exceeded or a negative
zero drift occurs, the following message appears in the display:
(concentration too high) or
(negative drift).
The measuring channels do not need to be checked after a
brief exceeding of the measuring range by the EC measuring
channels (up to one hour) (this does not apply when using
DrägerSensor XXS CO H2-CP).
In the event of an alarm, the corresponding displays, including
the visual, audible and vibration alarms, are activated, see
Section 8.2 on Page 16.
Press the [
▼
] button to illuminate the display.
1) configurable
