Dräger HFG 000 Series, HFG 001 Series, X-am 3500, X-am 8000 Technical Manual
Technical manual
X-am® 3500/8000
HFG 000* / HFG 001*
2 Technical manual | X-am® 3500/8000
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Technical manual | X-am® 3500/8000 5
Contents
Contents
1 Safety-related information ......................................................................
8
1.1 Information on safety notes and warnings......................................
8
1.1.1 Safety notes......................................................................
8
1.1.2 Warnings ..........................................................................
8
1.2 Basic safety information..................................................................
8
1.3 Use in areas subject to explosion hazards .....................................
8
2 Conventions in this document ...............................................................
10
2.1 Meaning of the warning notes.........................................................
10
2.2 Trade marks....................................................................................
10
2.3 Typographical conventions.............................................................
10
2.4 Glossary..........................................................................................
10
2.5 Abbreviations ..................................................................................
11
3 Description ...............................................................................................
13
3.1 Product overview ............................................................................
13
3.2 Intended use...................................................................................
14
3.3 Limitations on use...........................................................................
14
3.4 Approvals........................................................................................
14
3.5 Label ...............................................................................................
14
3.6 Sensor slot positions X-am 3500....................................................
14
3.7 Sensor slot positions X-am 8000....................................................
15
3.8 Further device options for X-am 8000 ............................................
15
4 Operation ..................................................................................................
16
4.1 Op
erating concept ..........................................................................
16
4.2 Symbol explanations.......................................................................
16
4.2.1 feature buttons..................................................................
16
4.2.2 Displays ............................................................................
16
4.2.3 Application ........................................................................
16
4.2.4 Device status ....................................................................
17
4.2.5 Connection .......................................................................
17
4.2.6 User level..........................................................................
17
4.2.7 Display in gas channel......................................................
17
4.3 Signalling concept...........................................................................
18
4.3.1 Acoustic operation signal..................................................
18
4.3.2 Visual operation signal .....................................................
18
4.3.3 Visual operation signal with activated D-Light..................
18
4.4 Switch the gas detector on or off ....................................................
18
4.4.1 Initial start-up ....................................................................
18
4.4.2 Switching on the gas detector ..........................................
19
4.4.3 Switching off the gas detector ..........................................
19
4.5 Logging a user in or out ..................................................................
20
4.6 Preparations for operation ..............................................................
21
4.7 During operation .............................................................................
21
4.7.1 Monitoring measuring mode.............................................
22
4.7.2 Alarms ..............................................................................
23
4.7.3 Special s
tate.....................................................................
23
6 Technical manual | X-am® 3500/8000
Contents
4.7.4 Blocking alarm ..................................................................
23
4.7.5 Deleting (application) peaks .............................................
24
4.8 Calling the Quick Menu...................................................................
24
4.9 Opening information .......................................................................
24
4.10 Measuring .......................................................................................
25
4.10.1 Special features when measuring with the pump.............
25
4.10.2 Carrying out measuring with the pump.............................
26
4.11 Measurements with wizards ...........................................................
28
4.12 Carrying out confined space entry measurements with the wizard
28
4.13 Carrying out leak searches with the wizard ....................................
29
4.14 Carrying out a benzene/pre-tube measurement with the wizard ....
30
4.14.1 Mounting the pre-tube bracket..........................................
30
4.14.2 Making measurement .......................................................
32
4.15 Configuring the device settings.......................................................
33
4.15.1 Activating day or night mode ............................................
33
4.15.2 Changing the device language .........................................
33
4.15.3 Setting the date and time..................................................
33
4.15.4 Activating silent mode.......................................................
33
4.15.5 Activating or deactivating the capture range ....................
33
4.15.6 Activating or deactivating Bluetooth
®
(X-am 8000 only)...
34
4.16 Activating an automatic over range ................................................
34
4.17 Hydrogen (H
2) added signal (for IR Ex)..........................................
34
5 Troubleshooting.......................................................................................
36
5.1 Error................................................................................................
36
5.2 Warnings.........................................................................................
37
6 Maintenance .............................................................................................
39
6.1 Maintenance intervals.....................................................................
39
6.2 Calibration intervals ........................................................................
39
6.3 Perform bump test ..........................................................................
40
6.3.1 Carrying out bump tests with the wizard...........................
40
6.4 Calibrate the gas detector...............................................................
42
6.4.1 Carrying out a fresh air calibration....................................
42
6.4.2 Carrying out a single-gas calibration ................................
43
6.4.3 Carrying out a multi-gas calibration ..................................
45
6.4.4 Carrying out a cross calibration........................................
47
6.5 Carrying out a signal test................................................................
47
6.6 Charging the battery .......................................................................
47
6.7 Exchanging, adding or removing a sensor .....................................
48
6.8 Cleaning the PID lamp (X-am 8000 only) .......................................
52
6.9 Exchange the device components..................................................
53
6.9.1 Opening the gas detector .................................................
53
6.9.2 Blind bracket / strap retainer / labelling field/label for strap
55
6.9.3 Battery ..............................................................................
55
6.9.4 RFID transponder.............................................................
56
6.9.5 F
ront housing cradle with diaphragms..............................
56
6.9.6 Vibration motor .................................................................
56
6.9.7 Sensor sealing plate.........................................................
57
6.9.8 Sensor holders .................................................................
58
6.9.9 Pump block.......................................................................
58
6.9.10 Horn / resonator................................................................
60
Technical manual | X-am® 3500/8000 7
Contents
6.10 Labelling field/label for strap ...........................................................
61
6.11 Mounting the clip.............................................................................
61
6.12 Radio-Frequency Identification (RFID) ...........................................
61
6.13 Cleaning..........................................................................................
62
7 Configuration ...........................................................................................
63
7.1 Standard gas configuration.............................................................
63
7.2 Configuring the gas detector...........................................................
65
7.2.1 Configuring the gas detector with the Dräger X-dock and
reading the data memory
65
7.2.2 Configuring the gas detector with the PC and reading the
data memory
66
8 Device settings.........................................................................................
67
8.1 Factory settings ..............................................................................
67
8.2 Device and sensor settings.............................................................
68
8.3 Alarm settings .................................................................................
69
9 Transport ..................................................................................................
70
10 Storage......................................................................................................
71
11 Disposal ....................................................................................................
72
12 Technical data ..........................................................................................
73
12.1 Gas detector ...................................................................................
73
8 Technical manual | X-am® 3500/8000
Safety-related information
1 Safety-related information
1.1 Information on safety notes and warnings
Safety notes and warnings warn of dangers and provide instructions for the safe
use of the product. Failure to observe these safety notes and warnings may result
in personal injury or damage to property.
1.1.1 Safety notes
This document contains sections with safety notes which warn of dangers. The type
of danger and the consequences following failure to observe the safety note are
included in every safety note.
1.1.2 Warnings
Warnings refer to steps of a task and warn of dangers which may result while the
steps are executed. Warnings appear before the steps.
1.2 Basic safety information
– Before using this product, carefully read the associated instructions for use. This
document does not replace the instructions for use.
1.3 Use in areas subject to explosion hazards
To reduce the risk of ignition of a flammable or explosive atmosphere, strictly
observe the following safety notes:
Use in areas subject to explosion hazards
Devices or components for use in explosion-hazard areas which have been tested
and approved according to national, European or international explosion protection
regulations may only be used under the conditions specified in the approval and
with consideration of the relevant legal regulations. The devices or components
may not be modified in any manner. The use of faulty or incomplete parts is
forbidden. The appropriate regulations must be observed at all times when carrying
out repairs on these devices or components.
X-am 8000: Increased hydrogen concentrations within the measuring range of
the DrägerSensor XXS H
2 HC may result in false alarms due to the additive effect
on the DrägerSensors XXS H
2S and XXS CO, XXS H2S-LC and XXS CO-LC as
well as due to the negative effect on the DrägerSensor XXS O2.
Oxygen-enriched atmospheres
Explosion protection is not guaranteed in oxygen-enriched atmospheres
(>21 vol. % O
2).
► Remove the device from the potentially explosive atmosphere.
Technical manual | X-am® 3500/8000 9
Safety-related information
Oxygen deficient atmospheres
Measurements in oxygen deficient atmospheres (<12 vol. % O
2) may return
incorrect displays on the CatEx sensor. In this case the CatEx sensor cannot
provide a reliable measurement.
► Remove the device from the area.
The CatEx sensor in oxygen deficient or oxygen enriched environments
Incorrect measured values may be displayed in an oxygen deficient or oxygen
enriched environment.
► The CatEx sensor is intended to measure flammable gasses and vapours mixed
with air (i.e. O
2 content ≈ 21 vol. %). If the O2 content falls below 12 vol. % and
am operational O
2 sensor is available, a channel error is triggered on the CatEx
channel due to oxygen deficiency.
Incorrect calibration
CAUTION: An incorrect calibration leads to incorrect measured values.
► CSA requirement (Canadian Standard Association): The sensitivity must be
checked daily before first using the device with a known concentration of the gas
to be measured that corresponds to 25 to 50 % of the final concentration. The
accuracy must amount to 0 to +20 % of the actual value. The accuracy can be
corrected by calibration.
RFID tag (optional)
► The RFID tag must not be read out in explosion-hazard areas.
NOTICE
Damage to the CatEx sensor!
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,
replace the sensor.
DrägerSensor CatEx 125 PR (6812950) and CatEx 125 PR Gas (6813080)
► For this gas detector, only use sensors with serial numbers > ARLB XXXX
(starting with date of manufacture in February 2018). These sensors are certified
for use in zone 0, T4.
10 Technical manual | X-am® 3500/8000
Conventions in this document
2 Conventions in this document
2.1 Meaning of the warning notes
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:
2.2 Trade marks
The brands listed are only registered in certain countries and not necessarily in the
country in which this material is sold.
2.3 Typographical conventions
2.4 Glossary
Alert icon Signal word Consequences in case of nonob-
servance
WARNING Indicates a potentially hazardous situation
which, if not avoided, may result in death or
serious injury.
CAUTION Indicates a potentially hazardous situation
which, if not avoided, may result in injury. It
may also be used to alert against unsafe
practices.
NOTICE Indicates a potentially hazardous situation
which, if not avoided, could result in damage to the product or environment.
Brand Brand owner
X-am
®
Dräger
Bluetooth
®
Bluetooth SIG, Inc.
Tex t Text in bold identifies labels on the device and text on the display.
► This triangle in warnings identifies the options available for avoiding
the hazard.
> The greater-than symbol identifies a navigation path in a menu.
This symbol indicates information that may make the use of this
product easier.
Ter m Description
Operation signal A periodic optical (green LED) and/or acoustic signal.
Measurement mode Measurement in one of the applications (monitoring,
confined space entry, leak search, benzene/pre-tube
measurement) (X-am 8000 only).
Technical manual | X-am® 3500/8000 11
Conventions in this document
2.5 Abbreviations
Monitoring Monitoring without pump (diffusion)
Monitoring with pump (with pump adapter)
Capture range The capture range refers to a measured value range
within which minor variations in measured values (such
as signal noise, variations in concentration) do not cause
variations in the display. Measured values outside the
capture range will be displayed with the actual measured
value.
Confined space entry
wizard
Measurement with pump and any accessories (e.g.
hose, probe) for clearance measurements of specific
areas (X-am 8000 only).
Leak search wizard Leak search measurement (X-am 8000 only)
Benzene/pre-tube wiz-
ard
Benzene/pre-tube measurement (X-am 8000 only)
Peak Peak value
Quick bump test Test for alarm triggering.
Extended bump test Test for accuracy and alarm triggering.
Special state If a special state is signalled, the user is not warned of
gas concentrations which may be dangerous.
The following device features are special states:
First set-up / configuration with the PC menu, prepara-
tion phase of the wizards, maintenance wizard bump test
and calibration, warm-up 1 of the sensors.
D-Light The D-Light feature allows the user to check and indicate
compliance with certain settings.
Physical sensors The CatEx, IR, and PID sensor types are designated as
physical sensors. There are also the electrochemical
sensors.
Ter m Description
Abbreviation Explanation
A1 Pre-alarm
A2 Main alarm
CSE Confined space entry, clearance measurement (before entering
confined spaces)
FKM Fluoroelastomer
IR Infrared
PID Photoionization detector
PTFE Polytetrafluoroethylene
PVC Polyvinyl chloride
STA Short time average, average value over a short period of time
(generally 15 minutes).
STEL Short time exposure limit, threshold of an exposition over a
short period of time (generally 15 minutes).
12 Technical manual | X-am® 3500/8000
Conventions in this document
STEV Short time exposure value, average value of exposure over a
short period of time (generally 15 minutes).
TWA Time weighted average, average shift values are generally lim-
ited to eight hours exposure per day per workplace for 5 days a
week during a work lifetime. Observe the national definition of
the occupational exposure limit.
Abbreviation Explanation
Technical manual | X-am® 3500/8000 13
Description
3 Description
3.1 Product overview
The graphics are displayed on the fold-out page.
Graphic A
1 Display 4 Charge LED green/red
2 Locking screw for an additional
charging module
5 Labelling field (X-am 8000 only)
3 Power supply unit 6 Induction charger
Graphic B
1 Gas inlets 3 Horn
2 Thread port for pumps and calibra-
tion adapter
4 Pump outlet and inlet
Graphic C
1 LED green/yellow/red 2 LED yellow/red
Graphic D
1 feature button 1 3 feature button 3
2 feature button 2
Graphic E
1 Status information 2 Navigation bar
Graphic F
1 Clip (optional) 2 Socket for support belt for shoulder
version
(X-am 8000 only)
Graphic G
1 Alarm A1 3 STEL alarm
2Alarm A2 4TWA alarm
Graphic J
1 Battery pre-alarm 2 Battery main alarm
Graphic K
1 Calibration adapter (grey coloured
ring)
3 Exhaust
2 Gas inlet 4 Locking screw
Graphic L
1 Pre-tube bracket (X-am 8000 only) 2 Pre-tube (X-am 8000 only)
Graphic M
1 Pump adapter (blue coloured ring) 4 Exhaust
2 Gas inlet 5 Locking screw
3 Dust and water filter
14 Technical manual | X-am® 3500/8000
Description
3.2 Intended use
Dräger X-am 3500/8000 is a portable gas detector for clearance measurements
and for the continuous monitoring of the concentration of several gases in ambient
air in the workplace and in explosion-hazard areas.
The X-am 3500 allows measuring up to 4 gases in accordance with the
DrägerSensors (XXS O
2, XXS H2S LC, XXS CO LC, XXS NO2, XXS SO2 and
CatEx 125 PR) which are installed. The gas detector can be operated in pump
mode or in diffusion mode.
X-am 8000 can measure up to 7 gasses in accordance with the installed
DrägerSensors (EC, IR, CatEx, PID). The gas detector can be operated in pump
mode (if it is equipped with a pump) or in diffusion mode.
3.3 Limitations on use
The gas detector is not suitable for measuring process gasses.
Operation of the gas detector in the charging cradle in a vehicle is only permitted
under the following conditions:
– Acoustic signalling must be deactivated (with the help of the PC software CC-
Vision).
3.4 Approvals
A copy of the rating plate and the declaration of conformity are provided in the
enclosed supplementary documentation (order no. 90 33 655).
CSA-specific information:
Only the combustible gas portion of this instrument has been tested for measuring
accuracy.
Radio approval (X-am 8000 only):
The information for radio approval can be viewed in the menu. For further
information, see the following chapter: "Opening information", page 24.
3.5 Label
The energy supply label has a mark for a service label. Here, a maximum of one
service label and one year-point label may be attached one on top of the other.
Further labels, conductive labels or labels with conductive material or parts can
have a negative effect on inductive charging.
The rating plate on the gas detector must not be concealed.
3.6 Sensor slot positions X-am 3500
Sensor slot Configuration
HPP 1 not assigned
HPP 2 CatEx sensor
EC 1-3 EC sensors
Technical manual | X-am® 3500/8000 15
Description
3.7 Sensor slot positions X-am 8000
3.8 Further device options for X-am 8000
The following device options are available if needed:
–Pump
– RFID transponder
– Bluetooth
®
module
– Carrying clip
Sensor slot Configuration
HPP 1 PID or IR sensor
HPP 2 IR or CatEx sensor
EC 1-3 EC sensors
16 Technical manual | X-am® 3500/8000
Operation
4 Operation
4.1 Operating concept
Navigation is done with the 3 multifeature buttons and the dynamic navigation bar
(see Graphic E on the fold-out page). The navigation bar changes dynamically
depending on the available interactions.
4.2 Symbol explanations
4.2.1 feature buttons
4.2.2 Displays
4.2.3 Application
Symbol Explanation
Confirm action/dialog / return to menu
Confirm all
Scroll up / through display
Scroll down / through display
Cancel action
Display quick menu
Display measuring channels individually
Display all measuring channels
Increase value
Decrease value
Repeat feature
Display menu
Symbol Explanation
Horn and vibration for gas alarm deactivated
Symbol Explanation
Messen
Clearance measurement (X-am 8000 only)
Leak search (X-am 8000 only)
Benzene/pre-tube measurement (X-am 8000 only)
Fresh air adjustment
Bump test or calibration
Technical manual | X-am® 3500/8000 17
Operation
4.2.4 Device status
4.2.5 Connection
4.2.6 User level
4.2.7 Display in gas channel
Symbol Explanation
Overview of the bump test intervals activated (additional information for the D-Light feature).
There are no gas alarms or errors.
Monitoring of the calibration intervals activated, D-Light function
deactivated (additional information for the D-Light function).
There are no gas alarms or errors.
Alarm message
Warning message
The gas detector can be operated normally. If the warning message is still displayed after operation, the gas detector requires
maintenance. Menu Messages displays details.
Fault message
The gas detector or measuring channel is not ready to measure
and requires maintenance. Menu Messages displays details.
Information message
Menu Messages displays details.
STEL alarm message
TWA alarm message
Event report
Symbol Explanation
Maintenance mode (access to the device via PC or X-dock)
Bluetooth
®
activated
Bluetooth
®
deactivated
Bluetooth
®
connection established
Symbol Explanation
User level 1
User level 2
User level 3
Symbol Explanation
Bump test or calibration successful
Bump test or calibration failed
Measurement range exceeded
18 Technical manual | X-am® 3500/8000
Operation
4.3 Signalling concept
4.3.1 Acoustic operation signal
A periodic acoustic signal indicates that the device is functional. The acoustic
operation signal can be deactivated. For further information, see the following
chapter: "Activating silent mode", page 33
4.3.2 Visual operation signal
A periodic pulse (increasing and decreasing intensity) of the green LED indicates:
– Monitoring, confined space entry, leak search or benzene/pre-tube
measurement application active
– There is no device or channel error, no gas alarm and no special state
4.3.3 Visual operation signal with activated D-Light
An activated D-Light feature allows the user to also check and indicate compliance
with certain settings:
– Evaluation of bump test intervals activated and complied with (factory setting) or
evaluation of the calibration intervals active and complied with
– Usage interval complied with
The D-Light feature can be activated using the Dräger CC-Vision PC software.
Signalling visually corresponds to the operating signal.
If one of the conditions listed is not fulfilled and the D-Light is activated, the greed
LED will switch on briefly at regular intervals (short flash approx. every 60 s) instead
of pulsing periodically.
4.4 Switch the gas detector on or off
4.4.1 Initial start-up
When the gas detector is switched on for the first time, a wizard starts. The wizard
guides the user through the set-up of the gas detector:
– Language selection, if applicable
– Data format and date
–Time
Readings below the measurement range
Channel error
Blocking alarm
##### Value too high to be displayed
Symbol Explanation
Technical manual | X-am® 3500/8000 19
Operation
4.4.2 Switching on the gas detector
1. Hold down the OK button for approx. 3 s.
The display shows a countdown.
The switch-on sequence and the warm-up phase of the sensors start.
The following display appear one after the other:
–Start screen
– Software version
– Display test (the display alternates between black and white)
– Alarm element test (LEDs, alarm signal and vibration alarm)
– Customer-specific information screen (optional)
– Alarm thresholds, STEL, TWA (if configured) and LEL factor (if available)
– Any expired bump test or calibration interval as well as early warnings (if
configured)
– Measured value display
After the wizard is complete, a customer-specific information screen (optional and
configurable with the Dräger CC-Vision PC software) and the measured value
display appear. The remaining sensor warm-up time is displayed in the upper, lefthand corner in a yellow box.
WARNING
Incorrect device feature/settings!
Incorrect device features/settings may result in danger to life and/or risk of
explosion.
► Before every use, check whether the display elements, the alarm features and
information are displayed correctly. If one of the items listed above does not
feature correctly or is incorrect, do not use the gas detector and have it
inspected.
The following features are active during the sensor warm-up phase:
– The measured values flash
– The yellow LED is illuminated
– A warning notice is displayed
The gas detector is ready to measure when the measured values no longer flash
and the yellow LED is no longer illuminated. The warning notice may continue to
be displayed if there are warnings pending. To display the warnings, refer to the
technical manual.
No alarms are issued during the warm-up phase!
4.4.3 Switching off the gas detector
1. Hold down ▲ and ▼ simultaneously until the displayed countdown expires.
The visual, acoustic and vibration alarms activate briefly.
The gas detector is switched off.
Or
1. Select in measuring mode and confirm the dialog.
20 Technical manual | X-am® 3500/8000
Operation
2. Select and confirm Switch off.
The gas detector may only be switched off without a prior sign-on if the Switch-
off allowed feature is activated using the Dräger CC-Vision PC software. Factory
setting: activated
When the gas detector is placed in the charging cradle, it switches off
automatically.
If the gas detector remains off for longer than 21 days and is not charged, deep
sleep mode is activated. In deep sleep mode, the gas detector can no longer be
switched on using the Dräger CC-Vision PC software or the Dräger X-dock. In this
case, the gas detector must be switched on manually.
4.5 Logging a user in or out
The gas detector has four configurable user levels. The user levels can be set using
the Dräger CC-Vision PC software. User level 0 means that the user is not signed
on. User levels 1 to 3 require a password for sign-on.
The following passwords are created by default:
Dräger recommends changing the predefined passwords after initial
commissioning.
Default setting:
User level 1: 0001
User level 2: 0002
User level 3: 0003
Function User level
0
Bump test
---
Fresh air adjustment
--
Clearance measurement
1)
1) X-am 8000 only
--
Leak search
1)
---
Benzene/pre-tube measurement
1)
---
Settings menu
---
Maintenance menu
---
Change measurement gas
1)2)
2) The data stored in the statistics counters are lost when the measurement gas is changed. The
Dräger GasVision PC software can be used to manually view the data via the data logger at a
later point in time. Automatic notifications via the X-dock Manager may only be available to a
limited extent.
---
Bluetooth
®1)
--
Technical manual | X-am® 3500/8000 21
Operation
To log in a user:
1. Select in measuring mode and confirm the dialog.
2. Select and confirm Login.
3. Enter the four-digit user level password and confirm each digit.
To sign out a user:
1. Select in measuring mode and confirm the dialog.
2. Select ‘Sign out’ and confirm the dialog.
4.6 Preparations for operation
WARNING
Serious damage to health!
An incorrect calibration can lead to incorrect measured values, which may result in
serious damage to health.
► Before performing safety measurements, check the calibration by way of a bump
test, adjust as necessary, and check all alarm elements. If national regulations
exist, the bump test must be performed in accordance with these regulations.
WARNING
Risk of explosion
Only applicable if using the Dräger CSE Connect app:
The use of an unsuitable smartphone or accessories may lead to ignition of
flammable or explosive atmospheres.
► The smartphone on which CSE Connect is installed must be suitable and
approved for use in areas subject to explosion hazards.
► A list of compatible smartphones is available from Dräger.
► Use only accessories that are suitable for use in areas subject to explosion
hazards.
1. Switch on the gas detector. The current measured values are shown in the
display.
2. Observe warnings, error messages and special states.
3. Verify that the gas inlet openings and membranes are clean, freely accessible,
dry and undamaged.
4. Check that the date and time are set correctly.
4.7 During operation
WARNING
Danger to life and/or risk of explosion!
The following alarms indicate a danger to life and/or risk of explosion:
– A2 alarm
– STEL or TWA alarm
– Device/channel error
► Immediately leave the hazard area.
22 Technical manual | X-am® 3500/8000
Operation
WARNING
Incorrect measured values!
Only for diffusion mode: If water seals the gas inlets on the gas detector (e.g. in
heavy rain or if the gas detector is submerged in water), incorrect measured values
may be returned.
► With the display facing downward, shake the gas detector to remove the water.
CAUTION
High readings outside of the LEL display range or a blocking alarm may indicate an
explosive concentration.
If the concentrations of combustible materials are too high, this may be the result of
a lack of O
2.
4.7.1 Monitoring measuring mode
In normal measuring mode, the measured values are displayed for every
measurement gas (see Graphic E on the fold-out page). The operation signal
sounds at regular interval (configurable), and the green LED pulses (e.g. visual
operation signal or D-light feature).
If a measuring range is exceeded or not reached, the respective symbol is
displayed instead of the measured value. For further information, see the following
chapter: "Symbol explanations", page 16
If, in measuring mode, a event (e.g. an alarm) occurs, the respective symbol is
displayed in the status bar (after the event is acknowledged, if necessary).
4.7.1.1 Displaying the measuring channel
To display an individual measuring channel:
1. Select in measuring mode.
2. Use ▲ or ▼ to view the individual measuring channels.
3. Select to navigate to the measuring channel overview.
4.7.1.2 Opening the event report
The following events are counted and displayed: A1/A2, STEL, shocks, incorrect
password entries.
If the gas detector is switched off and then on again, the event report is deleted.
To open the event report:
1. Select > Info > Device information in measuring mode.
2. Use ▲ or ▼ to scroll through the individual pages until the event report.
The symbol indicates a failed sign-on only after 5 attempts.
Technical manual | X-am® 3500/8000 23
Operation
4.7.1.3 Activating the pump
To activate the pump in (normal) measuring mode:
1. Place, align and tighten the pump adapter on the thread port on the top cover.
Check that the pump adapter is mounted correctly. Avoid bending the pump
adapter. The gas detector automatically switches to pump mode as soon as the
pump adapter is mounted.
The leak test starts automatically.
2. When the leak test is displayed, the suction inlet on the probe or hose closes
within 60 s and remains closed until the leak test is complete.
3. Release the inlet opening.
● Leak test successful: Measurement starts.
● Leak test failed: Inspect the accessories and the pump adapter and then
repeat the leak test.
4. Observe the flushing times. For further information, see the following chapter:
"Special features when measuring with the pump", page 25
4.7.2 Alarms
In the event of an alarm, corresponding displays, the optical alarm, vibration alarm
as well as, if necessary, the acoustic alarm are activated (configurable). For further
information, see the following chapter: "Alarm settings", page 69
To acknowledge an alarm:
1. Select .
4.7.3 Special state
The operation signal is deactivated during a special state. Special states are
displayed by the following visual signals:
– Yellow LED flashing – ‘warm-up 1’ special state
– Yellow LED continuously illuminated – general special state
No alarms are issued during a special state.
Exception: The calibration adapter is mounted in measuring mode. In this case,
alarms continued to be issued as long as the measurement gas can reach the
sensors.
WARNING
Incorrect measurement!
A mounted calibration adapter blocks free gas diffusion to the sensors. Correct
measured values and alarms can no longer be guaranteed.
► It is imperative to actively bump the sensors (e.g. test gas cylinder with pressure
reducer, flow 0.5 L/min).
4.7.4 Blocking alarm
The blocking alarm protects the CatEx sensor.
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