16
Instrument settings
The following parameters can be changed on an instrument:
Sensor settings
The following parameters can be changed on the sensors:
Check of parameters
To ensure that the values were correctly transferred to the gas detection
instrument:
Press the
data from X-am 1/2/5x00
in Dräger CC Vision.
Check parameters.
Name
Range
Password
Numerical range (3-digit)
Operating signal LED
1)
1)
At least one of the two operating signals must be switched on.
Yes / No
Horn operating signal
1)
Yes / No
Switch-off mode
"switch-off allowed" or
"switch-off prohibited" or
"switch-off prohibited at A2"
Shift length (TWA)
2)
2)
Corresponds to averaging time and is used to calculate the TWA exposure value.
60 - 14400 (in minutes)
(Setting for exposure alarm)
Short-term exposure level (STEL)
3) 4)
3)
Interpretation only if the sensor is designed for this.
4)
Corresponds to averaging time and is used to calculate the STEL exposure value.
0 - 15 (in minutes)
(Setting for exposure alarm)
Name
Range
Alarm threshold A1 (in measuring unit) 0 - A2
Alarm threshold A2 (in measuring unit) A1 – measuring range end value
Interpretation type
1)
1)
Interpretation only if the sensor is designed for this.
Inactive, TWA, STEL, TWA+STEL
Alarm threshold STEL
(in measuring unit)
1)
0 – measuring range end value
Alarm threshold TWA
(in measuring unit)
1)
0 – measuring range end value
Operation
Preparations for operation
Before using the instrument for the first time, insert a charged NiMH T4
power pack or batteries approved by Dräger see “Replacing the batteries /
rechargeable batteries” on Page 19.
The instrument is now ready for operation.
Switching on the instrument
Hold down the
[OK]
key for approx. 3 seconds until the countdown
»3 . 2 . 1«
shown on the display has elapsed.
–
All the display segments, including the visual, audible and vibration alarms,
are activated for a short time.
–
The software version is displayed.
–
The instrument performs a self-test.
–
The sensor that is up next for adjustment is displayed with the remaining
days until the next adjustment, e.g.
»ch
4
%LEL CAL 123«
.
–
The time until the bump test interval elapses is displayed in days, e.g.
»bt 2«
.
–
All A1 and A2 alarm thresholds and if applicable
» «
(TWA)
1)
and
» «
(STEL)
1)
for all toxic gases (e.g. H
2
S or CO) are displayed consecutively.
–
During the sensor warm-up phase:
The display for the measured value flashes
The special symbol
» «
is displayed.
No alarms are issued during the warm-up phase.
The red LEDs flash.
The gas detector is ready to measure when the measured values no
longer flash and the red LEDs are no longer illuminated. The special
symbol
» «
may continue to be displayed if corresponding warnings
(e.g. not yet ready for calibration) are active (to view the warnings, see
the technical manual).
WARNING
To reduce the risk of ignition of a flammable or explosive atmosphere, strictly
adhere to the following warning statements:
Only use power pack types ABT 01xx, HBT 00xx or HBT 01xx. See the marking
on the rechargeable battery for permitted rechargeable batteries and the
corresponding temperature class.
Substitution of components may impair intrinsic safety.
1)
Only when activated in the instrument configuration. Delivery condition: not activated.
