Instrument Settings - Dräger X-am 2500 Notice D'utilisation

Configuration
Standard instrument configuration:
® 1
Dräger X-am 2500
2
Bump test mode
2
Fresh air calibration
2 3
Operating signal
Capture range
2
Switch off
2
LEL factor
(ch )
4
2 4 5
STEL
(short-term average)
2 5 6
TWA
(shift average)
can be acknowledged, non-latching, pre-alarm,
7
Alarm A1
cannot be acknowledged, latching, like main alarm,
7
Alarm A1 at O sensor
2
7 cannot be acknowledged, latching, main alarm,
Alarm A2
®
1) X-am is a registered trademark of Dräger.
2) Different settings can be selected to meet customer requirements on delivery.
The current setting can be checked and changed with the Dräger CC Vision software.
3) A periodic short flashing indicates the operating capacity of the instrument. If there is no
operating signal, correct operation cannot be guaranteed.
4) STEL: average value of an exposure over a short period, generally 15 minutes.
5) Interpretation only if the sensor is designed for this.
6) TWA: shift averages are workplace limit values for generally eight hours per day of
exposure for five days a week during a working life.
7) Latching and acknowledgement of alarms A1 and A2 can be configured with the
Dräger CC Vision PC software.
22
Extended bump test
ON
ON
ON
allowed
4.4 (vol. %)
(4.4 Vol. % corresponds to 100 %LEL)
STEL function - disabled
Average value duration = 15 minutes
TWA function - disabled
Average value duration = 8 hours
rising flank
falling flank
rising flank
Selecting or disabling the capture ranges (only applies for the
measuring mode):
The capture range is selected in the measuring mode (factory setting)
and permanently disabled in calibration mode.
The CC-Vision PC software can be used to select or disable the
capture ranges for the measuring mode.
3.1

Instrument settings

The following parameters can be changed on an instrument:
Name
Password
1
Operating signal LED
1
Horn operating signal
Switch-off mode
2
Shift length (TWA)
Short-term exposure level (STEL)
1) At least one of the two operating signals must be switched on.
2) Corresponds to averaging time and is used to calculate the TWA exposure value.
3) Interpretation only if the sensor is designed for this.
4) Corresponds to averaging time and is used to calculate the STEL exposure value.
Range
Numerical range (3-digit)
Yes / No
Yes / No
"switch-off allowed" or
"switch-off prohibited" or
"switch-off prohibited at A2"
60 - 14400 (in minutes)
(Setting for exposure alarm)
0 - 15 (in minutes)
3 4
(Setting for exposure alarm)
Dräger X-am 2500