Drager X-AM 5000 User manual

04723999_01.eps
Multi-Gas Monitor
Technical Manual
Dräger X-am®5000
approved as type MQG 0010

2
Content
Content
For Your Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Intended Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Tests and Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Intended operating area and operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
What is What . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Front panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Rear panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Special symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Standard gas configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Standard device configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Preparations for operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Switching on the device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Switching off the device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Before entering the workplace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
During operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Calling the Info Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Calling the Info-Off Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Calling the Quick Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Possible functions of the quick menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Quick menu "Delete peak values" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Calling the Calibration Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Calibration menu functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Identifying Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Concentration pre-alarm A1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Concentration main alarm A2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
STEL / TWA exposure alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Battery pre-alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Battery main alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Device alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Operation with pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Configuring the Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Device settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Read Database and Display Graphically . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Faults, Cause and Remedy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

3
Content
Fault messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Maintenance intervals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
ToxicTwins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
CO H2compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Carry out manual bump test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Manual implementation without the documentation of results in the device
memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Menu implementation with the documentation of results in the device memory . 41
Automatic implementation with the Bump Test Station . . . . . . . . . . . . . . . . . . . . 43
Calibrating the Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Carrying out the fresh air calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Carrying out 1-button calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Calibrating the sensitivity for an individual measuring channel . . . . . . . . . . . . . . 51
Span calibration for CatEx . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Replacing the batteries / rechargeable batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Charging the rechargeable batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Charging with the multiple charging station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Charging with charging module and plug-in power pack or vehicle charging
adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Replacing the Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Sensor warm-up acceleration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
X-am 5000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Order List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

4
For Your Safety
For Your Safety
General safety statements
Before using this product, carefully read the associated Instructions for Use. This
document does not replace the Instructions for Use.
Definitions of alert icons
The following alert icons are used in this document to provide and highlight areas of
the associated text that require a greater awareness by the user. A definition of the
meaning of each icon is as follows:
Intended Use
Portable gas detection instrument for the continuous monitoring of the concentration of
several gases in the ambient air within the working area and in explosion-hazard areas.
X-am 5000, depending on the device type and configuration of DrägerSensors:
independent measurement of one up to five gases.
DANGER
Indicates an imminently hazardous situation which, if not avoided, will result in death
or serious injury.
WARNING
Indicates a potentially hazardous situation which, if not avoided, could result in death
or serious injury.
CAUTION
Indicates a potentially hazardous situation which, if not avoided, could result in
physical injury, or damage to the product or environment. It may also be used to alert
against unsafe practices.
NOTICE
Indicates additional information on how to use the product.

5
Tests and Approvals
Tests and Approvals
Copies of the name plate and the declaration of conformity are provided in the
enclosed supplementary documentation (order no. 90 33 890).
The BVS 10 ATEX E 080 X technical suitability test is based on the adjustment with the
target gas.
Do not stick anything on the name plate on the gas detector.
The technical suitability tests are valid for the X-am 5000 gas detector and the
calibration cradle. The explosion-protection approvals are only valid for the X-am 5000
gas detector; the calibration cradle must not be used in the Ex zone.

6
Tests and Approvals
Intended operating area and operating conditions
Areas subject to explosion hazards, classified by zones
The instrument is intended for the use in explosion-hazard areas of Zone 0, Zone 1 or
Zone 2 or in mines at risk due to fire damp. It is intended for use within a temperature
range of -20 °C to +50 °C, and for areas in which gases of explosion groups IIA, IIB or
IIC and temperature class T3 or T4 (depending on the batteries and rechargeable
battery) may be present. If used in mines, the instrument is only to be used in areas
known to have a low risk of mechanical impact.
Areas subject to explosion hazards, classified by divisions.
The instrument is intended for use in explosion-hazard areas according to Class I&II,
Div. 1 or Div. 2 within a temperature range of -20 °C to +50 °C, and for areas where
gases or dusts of groups A, B, C, D, E, F, G and temperature class T3 or T4 may be
present (depending on the rechargeable battery and batteries).
Safety instructions
WARNING:
CSA requirement: The sensitivity must be tested on a daily basis before first use with
a known concentration of the gas to be measured in accordance with 25 to 50 % of
the concentration limit value. The accuracy must be 0 to +20 % of the actual value.
The accuracy can be corrected via calibration.
WARNING
To reduce the danger of explosion, do not mix new batteries with old batteries and do
not mix batteries made by different manufacturers.
WARNING
Always disconnect the device from the power pack before carrying out any
maintenance operations.
WARNING
Substitution of components may impair intrinsic safety.
CAUTION
Not tested in an oxygen-enriched atmosphere (>21 % O2).
WARNING
High off-scale readings may indicate an explosive concentration.

7
Tests and Approvals
Note the following for CSA (Canadian Standards Association) applications:
For the CSA approval only the functions of the device component that is used to
measure flammable gases are tested. The device is not approved by CSA for use in
mining.
CAUTION
Use only supply units ABT 0100 (83 22 237), HBT 0000 (83 18 704) or HBT 0100
(83 22 244). Check the supply unit for approved batteries and applicable temperature
class.
WARNING:
Before daily use, test the sensitivity with a known concentration of the applicable gas
corresponding to 25 to 50% of the maximum concentration. The accuracy must be
within a range of 0 to +20% of the actual value. Perform a calibration to correct the
accuracy if necessary.
Only applies for class II certification. CSA standard C22.2 no. 152 does not contain
any requirements for class II hazard areas. Therefore this device was not tested for
class II by the CSA. The sensor may become blocked and not measure the gas
correctly or not warn the user that gas measurement is not possible.
WARNING
CSA requirement: Measured values over the full scale value are displayed as an ex-
plosive concentration.
NOTICE
CSA requirement: a measurement suitability test must be conducted for flammable
gases.

8
What is What
What is What
Front panel
Rear panel
Display
for 5 measuring channels
only:
other:
The following only shows the device version with 5 measuring channels.
1Gas entry
2Alarm LED
3Buzzer
4key
5key
6Display
7Tool for replacing
the sensor
1IR interface
2Fastening clip
3Type plate
4Charging contacts
5Power pack
6Serial no.
1Measured gas
display with unit
2Measured value
display
3Special symbols
4Measured gas
display
5Measured gas
display with unit
6Special symbols
00223999_02.eps
0
1
2
6
54
3
2
X-am 5000
7
OK
00323999_02.eps
2
1
4
6
3
5
00423999_02_en.eps
456
CH4
O 2
CO
%LEL
Vol%
ppm
123
CH4
%LEL
O 2
Vol%
CO
ppm
H
2 S
ppm
NH
3
ppm

9
What is What
Special symbols
Marking offset channels:
Fault message, refer to page 17
Warning message, refer to page 17
The peak value display for all measuring gases,
refer to page 17
The exposure evaluation display (TWA) for measuring gases, e.g., H2S and
CO,
refer to page 17
The exposure evaluation display (STEL) for measuring gases, e.g,. H2S and
CO,
refer to page 17
The device is set to function test with gas (bump test),
refer to page 40
The device is set to the fresh air calibration function,
refer to page 46
The device is set to the 1-button calibration function,
refer to page 47
The device is set to the single gas calibration function,
refer to page 50
The function for password entry is active,
refer to page 20
Battery / rechargeable battery 100 % full
Battery / rechargeable battery 2/3 full
Battery / rechargeable battery 1/3 full
Battery / rechargeable battery empty
Feature Reading on the display
ToxicTwins HCN+
CO H2compensation CO+

10
Configuration
Configuration
Standard gas configuration
DrägerSensor Measuring
range 1) Alarm A1 1) Alarm A2 1)
setpoint can be acknowledged self-latching setpoint can be acknowledged self-latching
CatEx 125 PR
[%LEL] 0 to 100 20 Yes No 40 No Yes
CatEx 125 PR Gas
[%LEL] 0 to 100 20 Yes No 40 No Yes
XXS O2[vol. %] 0 to 25 19 2) No Yes 23 No Yes
XXS O2100 [vol. %] 0 to 100 18.5 2) No Yes 24 No Yes
XXS O2LS / CO-LC
[vol. %], [ppm] 0 to 25 O2
0 to 2000 CO 19 O2 30 CO No
Yes Yes No 23 O2
60 CO No
No Yes Yes
XXS O2/ H2S-LC
[Vol%], [ppm] 0 to 25 O2 0 to 100 H2S19 O2 5H
2SNo
Yes Yes No 23 O2 10 H2SNo No Yes Yes
XXS CO [ppm] 0 to 2,000 30 Yes No 60 No Yes
XXS CO LC [ppm] 0 to 2,000 30 Yes No 60 No Yes
XXS CO-LC/H2S-LC
[ppm] 0 to 2,000 0 to 100 30 5Yes Yes No No 60 10 No No Yes Yes
XXS CO-LC/O2
[ppm], [vol.-%] 0 to 2,000 CO 0 to 25 O2
30 CO
19 O2
Yes
No No Yes 60 CO 23 O2
No
No Yes Yes
XXS CO HC [ppm] 0 to 10,000 600 Yes No 1,200 No Yes
XXS CO H2-CP [ppm] 0 to 2.000 30 Yes No 60 No Yes
XXS H2 [ppm] 0 to 2.000 200 Yes No 400 No Yes
XXS H2S [ppm] 0 to 200 5Yes No 10 No Yes
XXS H2S LC [ppm] 0 to 100 5Yes No 10 No Yes
XXS H2S HC [ppm] 0 to 1,000 10 Yes No 20 No Yes
XXS H2S/CO [ppm] 0 to 200 H2S
0 to 2,000 CO 5 H2S 30 CO Yes No 10 H2S 60 CO No Yes
XXS H2S-LC / CO-LC
[ppm] 0 to 100 H2S 0 to 2000 CO 5 H2S 30 CO Yes Yes No No 10 H2S 60 CO No No Yes Yes
XXS NO [ppm] 0 to 200 25 Yes No 50 No Yes
XXS NO2[ppm] 0 to 50 5Yes No 10 No Yes
XXS SO2[ppm] 0 to 100 0,5 Yes No 1No Yes
XXS PH3[ppm] 0 to 20 0.1 Yes No 0.2 No Yes
XXS PH3HC [ppm] 0 to 2,000 5Yes No 10 No Yes
XXS HCN [ppm] 0 to 50 1.9 Yes No 3.8 No Yes
XXS HCN PC [ppm] 0 to 50 5Yes No 10 No Yes
XXS NH3[ppm] 0 to 300 20 Yes No 40 No Yes
XXS CO2[vol. %] 0 to 5 0.5 Yes No 1No Yes
XXS Cl2[ppm] 0 to 20 0.5 Yes No 1No Yes
XXS H2HC [vol. %] 0 to 4 0.8 Yes No 1.6 No Yes

11
Configuration
XXS OV [ppm] 0 to 200 10 Yes No 20 No Yes
XXS OV A [ppm] 0 to 200 10 Yes No 20 No Yes
XXS Odorant [ppm] 0 to 40 10 Yes No 20 No Yes
XXS Amine [ppm] 0 to 100 10 Yes No 20 No Yes
XXS COCI2 [ppm] 0 to 10 0.1 Yes No 0.2 No Yes
XXS O3 [ppm] 0 to 10 0.1 Yes No 0.2 No Yes
XXS NO2 LC [ppm] 0 to 50 0,5 Yes No 1,0 No Yes
1) 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. A version of Dräger CC-Vision suitable
for the Dräger X-am 5000/2000 can be downloaded on the product page of the X-am 5000:
www.draeger.com.
2) In the case of O2A1 is the lower alarm setpoint: an alarm is issued if the value is too low.
DrägerSensor Measuring
range 1) Alarm A1 1) Alarm A2 1)
setpoint can be acknowledged self-latching setpoint can be acknowledged self-latching

12
Configuration
Standard device configuration
Changing the standard configuration: See “Configuring the Device” on page 26.
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.
NOTICE
Only trained personnel are permitted to make changes to the device configuration.
Dräger X-am®50001)
1) X-am®is a registered trademark of Dräger.
Bump test mode 2)
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.
Extended bump test
Fresh air calibration2) ON
Operating signal 2) 3)
3) A periodic short signal indicates the operating capacity of the instrument. If there is no operating signal,
correct operation cannot be guaranteed.
ON
Capture range ON
Switch off 2) allowed
LEL factor 2)
(ch4)
4.4 (vol. %)
(4.4 vol. % corresponds to 100 %LEL)
STEL 2) 4) 5)
(short-term average)
4) STEL: average value of an exposure over a short period, generally 15 minutes.
5) Interpretation only if the sensor is designed for this.
STEL function - disabled
Average value duration = 15 minutes
TWA 2) 5) 6)
(shift average)
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.
TWA function - disabled
Average value duration = 8 hours
Alarm A1 7)
7) Latching and acknowledgement of alarms A1 and A2 can be configured with the Dräger CC Vision PC
software.
can be acknowledged, non-latching, pre-alarm,
rising flank
Alarm A1 at O2sensor 7) cannot be acknowledged, latching, like main alarm,
falling flank
Alarm A2 7) cannot be acknowledged, latching, main alarm,
rising flank
WARNING
After a basic initialization has been carried out with the PC software Dräger CC
Vision, individual alarm settings may have been changed.

13
Operation
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 "Changing the batteries" on page 55.
The instrument is now ready for operation.
Switching on the device
Press and hold the key for approx. 3 seconds until the countdown »3.2.1«
shown in 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 device performs a self test.
The next sensor which is next due for calibration is displayed with the days
remaining until the next calibration, e.g., » Ex %LEL CAL 20 «.
The time until the bump test interval elapses is displayed in days, e.g., » bt 123 «.
All A1 and A2 alarm thresholds and »«(TWA)1) and »«(STEL)1) for all toxic
gases (e. g. H2S 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 con-
tinue to be displayed if corresponding warnings (e.g. not yet ready for calibration)
are active (to view the warnings, see the technical manual).
Press the key to cancel the display of the activation sequence.
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.
OK
OK

14
Operation
Switching off the device
Press and hold the key and key at the same time 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
Switch on the device. The current measured values are shown in the display.
Observe any warning » « or fault messages » «.
If one of these special symbols is displayed, appropriate measures, refer to page 30
to page 33, must be taken.
WARNING
Before any measurements relevant to safety are made, check the adjustment with a
bump test, adjust if necessary and check all alarm elements. If national regulations
apply, a bump test must be performed according to the national regulations. Faulty
adjustment may result in incorrect measuring results, with possible serious
consequences.
WARNING
In an oxygen enriched atmosphere (>21 vol. % O2), the explosion protection cannot
be guaranteed; remove instrument from the explosion-hazard area.
CAUTION
The CatEx sensor is intended for measurements of flammable gases and vapours
mixed with air (i.e. O2content ≈21 vol.%). Incorrect measured values may be displayed
in the case of oxygen deficient or oxygen enriched environments.
NOTICE
If the gas detector is used for offshore applications, a distance of 5 m to a compass
must be complied with.
The device can be operated normally. If the warning message does not go out
automatically during operation, the device must be maintained after the end of
use.
The device is not ready to measure and requires maintenance.
OK

15
Operation
Check that the gas inlet opening on the device is not covered.
WARNING
Explosion hazard! To reduce the risk of flammable or explosive atmospheres igniting,
it is essential that the warning notices below are observed:
Fractions of catalytic poisons in the measuring gas (e.g. volatile silicon, sulphur,
heavy metal compounds or halogenated hydrocarbon) can damage the Cat Ex
sensor. If the CatEx sensor can no longer be calibrated to the target concentration,
the sensor must be replaced.
In case of measurements in oxygen-deficient atmosphere (<12 vol. % O2) the
CatEx sensor may show incorrect displays; in this case, a reliable measurement
with a CatEx sensor is not possible.
In an oxygen enriched atmosphere (>21 vol. % O2), the explosion protection
cannot be guaranteed; remove instrument from the Ex area.
High values outside the display area indicate an explosive concentration where
applicable.

16
Operation
During operation
During operation, the measured values for every measured gas are displayed.
In the event of an alarm, the corresponding displays, the visual, audible and vibration
alarms are activated – see chapter “Identifying Alarms”.
If a measuring range is exceeded or a negative drift occurs, the following displays
are shown instead of the measured value display:
If an O2 sensor is fitted and this sensor measures an O2 concentration of below
12 vol. %, an error is indicated with » « on the ex-channel instead of a
measured value if the measured value is below the pre-alarm threshold (not with the
setting CH4 with measuring range >100 %LEL).
After the measuring range of the TOX measuring channels has been exceeded
temporarily (up to one hour), checking the measuring channels is not necessary.
In the event of an alarm, the corresponding displays, including the visual, audible and
vibration alarms, are activated – see “Identifying Alarms” on page 21.
If the measuring range is exceeded significantly on the CatEx channel (very high
concentration of flammable materials), a blocking alarm is triggered. This CatEx
blocking alarm can be acknowledged manually by switching the device off and back on
again in fresh air.
In configuration setting CH4with measuring range 100 vol. %, no blocking alarm is
triggered as the heat conductance measurement principle is used.
»«(concentration too high) or
»«(measuring range not reached) or
»«
(blocking alarm).
NOTICE
Special states in which there is no measuring operation (quick menu, calibration
menu, warm-up of sensors, password input) are indicated by a visual signal (slow
flashing of the alarm LED ).
CAUTION
The measuring range 0 to 100 vol. % CH4 is not suitable for monitoring explosive
mixtures in the measuring range from 0 to 100%LEL.
WARNING
If the DrägerSensor CatEx 125 PR is used in the gas detector, a zero point and
sensitivity calibration must be carried out after experiencing an impact load that
results in a non-zero display when exposed to fresh air. This warning does not apply if
the DrägerSensor CatEx 125 PR Gas is used.

17
Operation
Calling the Info Mode
In measuring mode, press the key for approx. 3 seconds.
If any warning or fault messages exist, the corresponding information or error codes
are displayed (page 30 to page 37).
Press the key successively for the next display.
The peak values and the exposition values TWA1) and STEL1) are displayed.
If no key is pressed for 10 seconds, the device returns automatically to measuring
mode.
Calling the Info-Off Mode
When the device is in a deactivated state, press the key.
The name of the gas, measuring unit and measuring range limit value are displayed for
all channels.
Pressing the key again exits the Info Off mode (or via timeout).
Warning messages are displayed. Numerical codes of warning messages:
see page 30.
key
Fault messages are displayed. Numerical codes of fault messages: see
page 33.
key
The peak values = the maximum measured values in the case of, e.g., CO,
H2S, ... or the minimum measured values in the case of O2within the storage
interval are displayed
key
The average values of the exposures based on a shift of, e.g., 8 hours (TWA)
of all the active sensors for the exposure evaluation are displayed
key
The short-term values (STEL) = average values of the concentrations over
the average value duration of all the active sensors for the exposure
evaluation are displayed
key
The device is in measuring mode again
1) Only when activated in the device configuration. Delivery status: not activated.
OK
OK
OK
OK
OK
OK
OK
OK

18
Operation
Calling the Quick Menu
Only the fresh air calibration is activated in the quick menu on delivery. The PC
software Dräger CC Vision can be used to activate the bump test for the quick menu
and/or the function for displaying and deleting peak values.
In measuring mode, press the key three times.
If no functions have been activated in the quick menu, the device remains in
measuring mode.
You can select the activated functions of the quick menu by pressing the key.
Press the key to call the selected function.
Possible functions of the quick menu
Press the key to cancel the active function and to switch to measuring mode.
If no key is pressed for 60 seconds, the device returns automatically to measuring
mode.
Bump test, refer to page 40
Fresh air calibration, refer to page 46
Delete peak values, refer to page 19
Display pump information, refer to page 23
Activate or deactivate pump, refer to page 23
OK

19
Operation
Quick menu "Delete peak val-
ues"
After the function has been selected, the
current peak values are displayed; the
peak values special symbol appears in
the display at the same time.
The peak values can be deleted by
pressing the key for 5 sec.
The adjacent display appears.
Press the key to end the function.
04823999_01_en.eps
ch4
%LEL
O
2
Vol%
CO
ppm
H
2 S
ppm
NH
3
ppm
04923999_01_en.eps
ch4
%LEL
O
2
Vol%
CO
ppm
H
2 S
ppm
NH
3
ppm
OK
OK

20
Operation
Calling the Calibration Menu
The calibration menu can only be accessed by entering a password.
Password on delivery: »001«
The default password on delivery can be changed using the PC software
Dräger CC Vision.
In measuring mode, press the key for at least 4 seconds.
The function for entering the password is selected.
The » « special symbol (for the "enter password" function) is displayed.
Calibration menu functions
Press the key to cancel the active function.
If no key is pressed for 10 minutes, the device automatically returns to measuring
mode.
The display shows »000«, with the
first digit flashing.
Use the key to set the flashing digit.
Press the key, the second digit
starts flashing.
Use the key to set the flashing digit.
Press the key, the third digit starts
flashing.
Use the key to set the flashing digit.
Press the key to confirm the
password once it has been set
completely.
The calibration menu functions can
now be selected by pressing the
key.
Press the key to call the selected
function.
Fresh air calibration, refer to page 46
1-button calibration, refer to page 47
Single gas calibration, refer to page 50
02323999_01.eps
OK
OK
OK
OK