Drager Polytron 8700, Polytron 8720 Instructions For Use Manual
WARNING
Strictly follow the Instructions for Use.
The user must fully understand and strictly observe the
instructions. Use the product only for the purposes specified
in the Intended use section of this document.
Dräger Polytron 8700/8720
Instructions for Use
i
!
Contents
Contents
1 For your safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1.1 General safety statements . . . . . . . . . . . . . . . . . . . .4
1.2 Definitions of alert icons . . . . . . . . . . . . . . . . . . . . . .4
2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.1 Product overview . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.2 Functional description . . . . . . . . . . . . . . . . . . . . . . . .6
2.3 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2.4 Intended area and conditions of use . . . . . . . . . . . . .6
2.5 Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2.6 Device marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3.1 General information for the installation . . . . . . . . . . .7
3.2 Restrictions on the installation . . . . . . . . . . . . . . . . .7
3.3 Impedance range of the signal loop . . . . . . . . . . . . .8
3.4 Mechanical installation . . . . . . . . . . . . . . . . . . . . . . .8
3.5 Electrical installation without e-Box . . . . . . . . . . . . . .8
3.6 Electrical installation with e-Box . . . . . . . . . . . . . . .10
3.7 Connecting the device to a Dräger control unit . . . .10
3.8 Connecting the device to a PC . . . . . . . . . . . . . . . .10
3.9 PolySoft 8000 PC software (optional) . . . . . . . . . . .10
3.10 Installing software dongles . . . . . . . . . . . . . . . . . . .10
4 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
4.1 Operating fundamentals . . . . . . . . . . . . . . . . . . . . .11
4.2 Display and LEDs . . . . . . . . . . . . . . . . . . . . . . . . . .11
4.3 Activating the Info mode . . . . . . . . . . . . . . . . . . . . .12
4.4 Switching to the Quick Menu mode . . . . . . . . . . . .13
4.5 Switching to Menu mode (password protected) . . .13
4.6 Measurement mode . . . . . . . . . . . . . . . . . . . . . . . .13
5 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
5.1 Calibrating the device . . . . . . . . . . . . . . . . . . . . . . .14
5.2 Performing Auto Calibration . . . . . . . . . . . . . . . . . .15
6 Menu overview . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
7 Information menu. . . . . . . . . . . . . . . . . . . . . . . . . .17
7.1 Device settings . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
7.2 Sensor information . . . . . . . . . . . . . . . . . . . . . . . . .17
7.3 Datalogger information (only with data dongle) . . .17
8 Settings menu . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
8.1 Switching SIL lock on or off . . . . . . . . . . . . . . . . . . .18
8.2 Device settings . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
8.3 Communication settings . . . . . . . . . . . . . . . . . . . . .21
8.4 Sensor settings . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
8.5 Datalogger settings (only with data dongle) . . . . . .25
9 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . .27
9.1 Fault reference: . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
9.2 Warning reference . . . . . . . . . . . . . . . . . . . . . . . . .28
10 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
10.1 Maintenance intervals . . . . . . . . . . . . . . . . . . . . . . .29
10.2 Changing the sensor . . . . . . . . . . . . . . . . . . . . . . . .29
10.3 Changing the main electronics . . . . . . . . . . . . . . . .29
11 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
12 Substances in the gas library (PIR 7000). . . . . . 30
12.1 Polytron 8700 Type 334 . . . . . . . . . . . . . . . . . . . . 30
12.2 Polytron 8700 Type 340 . . . . . . . . . . . . . . . . . . . . 31
13 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
13.1 Torques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
13.2 Tightening torque and cable size for field wiring termi-
nals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
13.3 Factory settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
14 Order list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
14.1 Dräger Polytron 8700 Type 334 . . . . . . . . . . . . . . 34
14.2 Dräger Polytron 8700 Type 340 . . . . . . . . . . . . . . 34
14.3 Dräger Polytron 8720 . . . . . . . . . . . . . . . . . . . . . . 34
14.4 Sensors for remote versions . . . . . . . . . . . . . . . . . 34
14.5 Replacement sensors (except for remote versions) 35
14.6 Accessories for Polytron 8700/8720 . . . . . . . . . . . 35
14.7 Replacement parts . . . . . . . . . . . . . . . . . . . . . . . . 35
15 Declaration of Conformity. . . . . . . . . . . . . . . . . . 36
Dräger Polytron 8700/8720 3
For your safety
1 For your safety
1.1 General safety statements
z Before using the product, carefully read the Instructions
for Use.
z Strictly follow the Instructions for Use. The user must fully
understand and strictly observe the instructions. Use the
product only for the purposes specified in the Intended use
section of this document.
z Do not dispose of the Instructions for Use. Ensure that they
are retained and appropriately used by the product user.
z Only fully trained and competent users are permitted to use
this product.
z Comply with all local and national rules and regulations
associated with this product.
z Only trained and competent personnel are permitted to
inspect, repair and service the product as detailed in these
Instructions for Use. Further maintenance work that is not
detailed in these Instructions for Use must only be carried
out by Dräger or personnel qualified by Dräger. Dräger
recommend a Dräger service contract for all maintenance
activities.
z Properly trained service personnel must inspect and
service this product as detailed in the Maintenance section
of this document.
z Use only genuine Dräger spare parts and accessories, or
the proper functioning of the product may be impaired.
z Do not use faulty or incomplete products, and do not modify
the product.
z The threads for the explosion proof enclosure do not
conform to the minimum/maximum values in EN/IEC
60079-1. The threads must not be reworked by the user.
z The measuring function of the transmitter for explosion
protection according to Annex II, Clauses 1.5.5, 1.5.6 and
1.5.7 of Directive 94/9/EG is not covered at present.
z Only operate the product within the framework of a risk-
based alarm signalling concept.
Safe coupling with electrical devices
z Electrical connections to devices which are not listed in
these Instructions for Use should only be made following
consultation with the respective manufacturers or an
expert.
Use in areas subject to explosion hazards
z 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.
1.2 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:
WARNING
!
IIndicates an imminently hazardous situation which, if
not avoided, will 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
i
i
Indicates additional information on how to use the
product.
4 Dräger Polytron 8700/8720
2 Description
001233300.eps
4
6
5
1
3
2
7
002233300.eps
4
8
5
1
6
7
3
2
2.1 Product overview
Description
2.1.1 Explosion proof device
2.1.2 Explosion proof device with increased safe wiring compartment (e-Box)
1 Housing cover
2 Clip
3 Enclosure with main electronics (and optional relay)
4 Lower part of housing
5 Dräger PIR 7000/7200
6 Assembled device
7 Mounting spacer
1 Housing cover
2 Clip
3 Enclosure with main electronics (and optional relay)
4 Lower part of housing
5 Dräger PIR 7000/7200
6 Feed through cable
7e-Box
8 Assembled device
Dräger Polytron 8700/8720 5
Description
D
Polytron 8700
ITR 0421
Dräger Safety 23560 Lübeck, Germany
II 2G
II 2D
WARNING: Do not open when energized
I
S
F
S
I
E
A
D
L
C
9N54
0158
Class I, Div 1, Groups A,B,C,D | Class II, Div 1, Groups E,F,G
Class I, Zone 1, Group IIC | T-Code T6/T4 | Type 4X | C22.2 No. 152
Supply: 10...30 VDC, 0.1...0.75 A | Relays: 5 A, 30 VDC or 230 VA C
CAUTION: Do not open cover. Opening
cover with circuits alive provokes risk of
Ignition of Hazardous Atmospheres.
W
ARNING: To reduce the risk of Ignition
of Hazardous Atmospheres, the conduit
must be sealed within 18’’ of the enclosure.
WARNING: Read Manual before operating.
Gas Detector for Use in Hazardous Locations as to
Fire, Electrical Shock and Explosion Hazards only
Part No: 4544638
Serial No. XXXX-9999
Ex d IIC T6/T4 Gb
Ex tb IIIC T80/130°C Db
-40°C ≤ Ta ≤ +40/+80°C
PTB 11 ATEX 1005X
IECEx PTB 11.0005X
IP6x | P ≤ 5 W
Sample
2.2 Functional description
The device is operated from a 10 to 30 volt DC supply.
The current gas concentration, status messages and menu
items are shown on a backlit LCD display and by three colored
LEDs. The measured gas concentration is output as a 4 to
20 mA analog signal or a digital HART
®
signal1 After the power
is switched on, the device detects whether the 4-20 mA
interface is to be operated as a current source or a current
sink. The flexible design permits fitting even in places that are
difficult to access. The Dräger PIR 7000/7200 can be fitted on
either side of the of the equipment and installation with up to
30 m between the sensing head and the PIR 7000/7200 is
possible. In the variant with the integrated e-Box with the
"increased safety" protection class, the device can be easily
connected to the electrical field wiring. The device can be
configured, calibrated and serviced without declassification of
the area.
2.3 Intended use
The Dräger Polytron 87x0 is an explosion proof transmitter for
continuous monitoring of the concentration of gases and vapors
containing hydrocarbons or carbon dioxide. The housing for the
device consists of robust, non-corroding stainless steel or
aluminum and is suitable for indoor or outdoor applications.
The unit can be connected to a Dräger monitoring system or
a programmable logic controller (PLC) by means of a sealed
conduit or an appropriately approved cable gland. With the
optionally integrated relay module, the device can be operated
without a central controller (with additional local alarm
signalling). The device is designed for fixed installation and is
approved for use in potentially explosive atmospheres,
see chapter 2.5 on page 6.
2.3.2 Dräger Polytron 8720 with PIR 7200 infrared gas
sensor Type CO
2
For monitoring carbon dioxide.
z Measuring range (IDS 01x5): 0 to 0.2 up to 30 vol% CO
2
WARNING
!
Explosive. Not to be used in oxygen enriched
atmospheres. None of the Polytron 8000 transmitters
is certified and approved to be operated in oxygen
enriched atmospheres.
2.4 Intended area and conditions of use
Hazardous areas classified by zones:
The device is only designed for use in Zone 1 or Zone 2
potentially explosive atmospheres for which a temperature
range as specified on the device must be observed and in which
gases of Explosion Groups IIA, IIB or IIC and Temperature
Classes T4 or T6 (depending on maximum ambient
temperature) or dust of Groups IIIA, IIIB or IIIC may occur.
Hazardous areas classified by divisions:
The device is only designed for use in potentially explosive
atmospheres of Classes I&II, Div. 1 or 2, for which
a temperature range as specified on the device must be
observed and in which gases or dust of Groups A, B, C, D or
E, F, G and Temperature Classes T4 or T6 (depending on
maximum ambient temperature) may occur.
2.5 Approvals
WARNING
!
To prevent ignition of explosive atmospheres, strictly
follow the warnings below:
Not tested in oxygen enriched atmospheres (>21%
O2). High off-scale readings may indicate an explosive
concentration.
Exchanging components may compromise the intrinsic
safety. This only applies if the device is intrinsically
safe.
2.3.1 Dräger Polytron 8700 with PIR 7000 infrared gas sensor Types 334 and 340
For monitoring flammable gases and vapors containing
hydrocarbons
z Measuring range of Type 334 (IDS 01x1): 0 to 20 up to
100 %LEL
z Measuring range of Type 340 (IDS 01x2): 0 to 5 up to
100 %LEL
2
, for CH4 (methane) also 0 to 100 vol.%
2
See printed version for approval markings.
2.6 Device marking
The device marking is reproduced on a separate document
shipped with the device.
Key to the Serial Number: The third letter of the Serial Number
specifies the year of manufacture: A = 2009, B = 2010, C = 2011,
D = 2012, E = 2013, F = 2014, H = 2015, J = 2016, K = 2017 etc.
Example: Serial Number ARBH-0054: The third letter is B,
i.e. the device was manufactured in 2010.
2 Lower Explosive Limit depending on the substance and the locally
applicable regulations.
6 Dräger Polytron 8700/8720
1HART® is a registered trademark of HCF, Austin, Texas, USA
Installation
3 Installation
3.1 General information for the installation
The selection of a suitable mounting location is crucial for the
effectiveness and performance of the entire system.
Considerable thought must be given to every detail of
installation, particularly:
z the local and national rules and regulations for the
installation of gas monitoring systems,
z the applicable regulations for running and connecting
power and signal cables to gas monitoring systems,
z the full extent of environmental influences to which the
device will be subjected,
z the physical properties of the gases and vapors to be
measured,
z the details of the particular application (e.g., potential
leaks, air movements/flows, etc.),
z accessibility for required maintenance activities,
z the geometric of the accessories that are used with
the system,
z all other limiting factors and stipulations that may affect the
installation of the system.
z For installation without a conduit, an approved cable gland
(e.g. Hawke A501/421/A/¾" NPT or equivalent) must be
used (see chapter 13 on page 32). To increase the RF
interference immunity, it may be necessary to connect the
cable screen to the cable gland and to the control unit.
z The explosion proof enclosure has three ¾" NPT
connections, which can be used for field wiring, the direct
attachment of a sensor or wiring an external sensor. For the
correct tightening torques for cable bushings, plugs and
sensors, see chapter 13 on page 32.
z The secondary are supposed to be supplied from an
isolating source (does not apply to relay contacts).
z The optional e-Box has up to four 20 mm connections,
which can be used for field wiring or wiring an external
sensor. The permissible cable diameter is 7 to 12 mm.
z If the device is installed in locations where ambient
temperatures of over 55 °C prevail, appropriate cables
which are designed for use at temperatures of 25 °C above
the maximum ambient temperature must be used.
z Strip back the insulation on conductors by 5 to 7 mm.
z Connect the cable as shown in Chapter 3.5 on page 8
(shown here also with protective ground).
z The use of a mounting spacer (Order Number 68 12 617)
is recommended as a matter of principle if the device is to
be mounted on a wall or on a very uneven substrate.
z The connecting wires for the optional relay module must be
selected and fused according to the rated voltages,
currents and environmental conditions.
z When stranded conductors are used, an end ferrule must
also be used.
3.2 Restrictions on the installation
z The device requires a DC voltage between 10 and 30 V.
The minimum supply voltage of 10 V and the cross-section
of the conductors used determine the distance of the
device from the supply or the central controller
(see chapter 13 on page 32). The device is designed for
cables of sizes 12 to 24 AWG (0.2 to 2.5 mm
2
). A three-
wire, screened cable must be used as a minimum.
z The device must not be subjected to any radiant heat
(e.g. direct sunlight) as this may result in a temperature rise
above the specified thresholds (see chapter 13 on
page 32). The use of a reflective screen is recommended.
z If a splash guard (Order Number 68 11 911 or 68 11 912) is
used, it is essential to make sure that the LEDs on the
status display are aligned vertically and the "Dräger" logo
on the splash guard is aligned horizontally. A maximum
deviation of ±10 degrees from the horizontal position is
permissible. Greater deviations will increase the response
time (see Instructions for Use for the PIR 7000/7200).
z Observe the preferred position: The PIR 7000/7200 must
be aligned so that the lights on the status display are above
one another. At the same time, the "Dräger" lettering on the
splash guard must read horizontally. A deviation from the
horizontal of ±10° maximum is permissible.
1
00333300.eps
z Any other alignment is only permissible if the PIR 7000/
7200 is used without a splash guard, e.g. applications in
exhaust ducts. When the sensor is fitted in an exhaust duct,
there is an increased risk that residues will form on the
optical surfaces.
z The housing is weather resistant and suitable for outdoor
applications. The use of the optional splash guard is
recommended to protect the sensor from water and dust.
z The device must be installed and operated in an
environment which conforms to the stated specifications
(see chapter 13 on page 32).
z To insure proper operation of the device, the impedance of
the 4 to 20 mA signal loop must not exceed 500 ohms.
Depending on the operating voltage and according to the
application (e.g. HART operation), certain minimum
impedances must be adhered to (see chapter 3.3 on
page 8). The conductors for the power supply must have
an adequately low resistance to insure the correct supply
voltage at the device.
Dräger Polytron 8700/8720 7
Installation
01133300.eps
VDC
+
-
mA
01033300.eps
VDC
+
-
mA
NOTICE
i
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A dust cap can be fitted to the cable entry of the device.
This cap is only used for transport purposes and must
be removed before the device is connected to a sealed
conduit.
3.3 Impedance range of the signal loop
Devices with a HART interface can be operated with HART
communication or in HART Multidrop mode.
Operating mode
Operation
without HART
communication
Operation with
HART
communication
(HART mode)
HART Multidrop
operation
Impedance range of the
signal loop
0 to 230 Ω at 10 V DC
Rising linearly with the
supply voltage from:
0 to 230 Ω at 10 V to
0 to 500 Ω at 16 V
0 to 500 Ω 18 to 30 V DC
230 to 270 Ω at 13 V DC
Rising linearly with the
supply voltage from:
230 to 270 Ω at 11 V to
230 to 500 Ω at 16 V
230 to 500 Ω 18 to 30 V DC
230 to 500 Ω 10 to 30 V DC
Supply
voltage range
10 to 18 V DC
11 to 16 V DC
3.5 Electrical installation without e-Box
CAUTION
!
First connect the cables for the relays and make
the connections to the sensor before connecting the
device to the power supply.
Connection diagram for operation as a current source
Connection diagram for operation as a current sink
3.4 Mechanical installation
z Use the supplied drilling template for mounting on a wall.
z The mounting surface should be even and free of
sharp edges.
z Dräger recommends using M6 Allen bolts.
z Take care that the conditions at the mounting location do
not result in the gas feed openings of the PIR 7000/7200
being covered or obstructed.
z The openings must be readily accessible to the
surrounding atmosphere.
NOTICE
i
i
There must be a free space of 5 cm next to the
PIR 7000/7200 to permit fitting/removal of the splash
guard and the later fitting of accessories.
To ensure an adequate distance between the
PIR 7000/7200 and the wall, use the mounting
spacer (Order Number 68 12 617).
8 Dräger Polytron 8700/8720
Installation
00933300.eps
1
3.5.1 Power and signal cables
1. Release the retaining
screw (1) and unscrew the
housing cover from the
device.
2. Lift the handle and remove
the enclosure with the main
electronics.
3. Connect the device
electrically to ground.
4. Rotate the main electronics
and disconnect the 5-way
plug.
5. Connect the three cables for
the power supply and the
signal to the corresponding
terminals (see following
table of connections for the 5-way plug).
Connections for 5-way plug (power supply and signal):
5-way plug (power supply and signal)
Terminal 1 2 3 4 5
Ident. PWR+ PWR- PWR- 4 to 20 mA signal PE
Function V+ V- V- 4 to 20 mA signal
(Operation as
source or sink)
PE
NOTICE
i
i
For clear and far-ranging detection of a device fault,
an alarm device should be switched by the fault relay.
Connections for 9-way plug (relays):
9-way plug (relays)
Fault relay A2 relay A1 relay
Terminal123456789
Ident. FLTNOFLTCFLTNCA2NOA2CA2NCA1NOA1CA1
(NO = Normally open, NC = Normally closed, C = Common)
3.5.3 Remote sensor
The remote junction box (Order Number 45 44 098 for
stainless steel / Order Number 45 44 099 for aluminum)
permits the installation of the sensors remote from the device
electronics. This installation enables operation of the device in
difficult to access or unfavourable positions (see the
Instructions for Use for the Dräger Polytron 5000 Junction Box
in this respect). The maximum permissible distance between
the Polytron 87X0 and the PIR 7000/7200 is 30 m.
NC
6. For operation without a central controller: connect
Terminal 3 to Terminal 4.
7. Fit the plug back in the socket and tighten the screws.
8. The screen of the cable must only be connected to the
control unit.
9. Insert the main electronics back in the housing.
10. Screw the cover on again and tighten the retaining screw.
3.5.2 Version with relays
WARNING
!
At voltages >30 V AC or >42.4 V DC, the relay cables
must be enclosed in protective tubing, or doubleinsulated cables must be used.
When the relay module is fitted, the wires for the alarm device
are connected to the 9-way plug.
1. Disconnect the 9-way plug on the rear of the main
electronics.
2. Connect the wires for Alarm Relay 1, Alarm Relay 2 and the
Fault relay to the corresponding terminals, (see following
table of connections for the 9-way plug).
3. The relays are energized when the default settings are used
and in the measurement mode. This insures "fail-safe"
operation. The terminal assignments in the connection table
below apply when the default settings are used and in
measuring mode (see chapter 4.6 on page 13).
4. Fit the plug back in the socket and tighten the screws.
5. Fit the enclosed protective cover over the plug and secure
it with cable ties if necessary.
Dräger Polytron 8700/8720 9
Installation
00833300.eps
3.6 Electrical installation with e-Box
z Install the e-Box in accordance with the Installation
Instructions for the Polytron 5000/8000 e-Box.
NOTICE
i
i
The e-Box can be pre-installed, wired and closed off
with the supplied cover. As soon as the installation is
ready for commissioning, the device is connected to
the e-Box and put into operation. This prevents the
device from being damaged during the construction
phase.
3.7 Connecting the device to a Dräger control unit
NOTICE
i
i
Information on connection can be found in the
Instructions for Use accompanying the particular
Dräger control unit (e.g. Regard, QuadGard).
Electrical connections to the control unit
z Connect the screen for the wires to the grounding point in
the control unit (e.g., chassis, grounding rail).
3.10 Installing software dongles
The following SW dongles are available for the device:
Datalogger dongle
83 17 618
Sensor test dongle
83 17 619
Diagnostic dongle
83 17 860
Combi-dongle (datalogger and sensor test dongle)
83 23 218
Combi-dongle (datalogger and diagnostic dongle)
83 23 219
Enables the datalogger and the
graphic display of concentrations.
Enables the sensor self test
(for certain versions only)
Enables the sensor self test,
the display of the remaining
sensor activity and the sensor
diagnostic function
(for certain functions only)
3.8 Connecting the device to a PC
The separately available Polytron 5000/8000 IR connection kit
is intended for use with the Polytron 5000/8000 and enables
communication between the Polytron 5000/8000 and a PC.
3.9 PolySoft 8000 PC software (optional)
The PolySoft 8000 PC software is used to display device
information, edit configuration settings and read out from the
measurements memory.
To install a SW dongle:
1. Switch off the power to the unit or declassify the area
according to the local regulations.
2. Release the retaining screw and unscrew the housing
cover from the device.
3. Lift the handle and remove the enclosure with the main
electronics.
4. Insert the dongle in the slot with the Dräger lettering facing
upwards.
5. Insert the main electronics back in the housing.
6. Screw the cover on again and tighten the retaining screw.
The dongle is installed.
7. Switch on the power.
10 Dräger Polytron 8700/8720
Operation
M
OK
M
OK
M
OK
OK
OK
4 Operation
4.1 Operating fundamentals
4.1.1 Menu navigation
00733300.eps
It is possible to scroll throught he menu items by tapping the
and symbols with the magnetic wand (Part Number
4544101, blue). confirms a function.
NOTICE
i
i
The housing cover should be fitted when using the
magnetic wand. If the housing cover is not fitted,
the magnetic wand might activate two or more buttons
at the same time (crosstalk).
List closed below / complete
There are no further functions, menus or sub-menus
listed below.
List can be scrolled downwards
There are further functions, menus or sub-menus
listed below.
Next
Perform context-related action.
3/3
Number / total number of steps (screens) within
the function.
2/2
Entry
Enter data with » « and » «.
M
4.1.2 Changing parameter values or the parameter status
1. Select the desired menu item with and .
2. Confirm the menu item with .
The current value or status will be displayed.
3. Using and , the value of a numerical parameter can
be changed or preset values can be selected.
4. As soon as the desired value or the selection is displayed,
tap to validate/confirm the new parameter.
5. Tap to access the next higher level.
z If exiting using Back to menu or Previous, all changes will
be discarded.
4.1.3 Exiting menus
z Ta p Back to measurement and to exit the menu.
4.2 Display and LEDs
In measurement mode, the current gas concentration,
the name of the gas and the measurement units are shown on
the display. The green LED lights.
Graphic symbols facilitate navigation in the various menus.
Together with the text » Back «, » Menu «, etc., exit the
menu or go back 1 step.
Closed folder
Further functions or sub-menus are located under
this item.
Opened folder
The functions and sub-menus available here are listed
under this item.
Function
When activated, functions can be executed in one or
more steps.
Selection activated
For functions that can be selected and activated,
the activation is initiated by pressing » «.
OK
List closed above / complete
There are no further functions, menus or sub-menus
listed above.
List can be scrolled upwards
There are further functions, menus or sub-menus
listed above.
In addition, the following symbols may be displayed:
z " ", if the measurement range is exceeded
z " - - - - " and " X " in the event of a malfunction. The yellow
LED lights, (see chapter 4.2.2 on page 12).
z "SIL", when SIL status is activated.
When the optional relay PCB is used:
z If the first alarm has been triggered, the red LED gives
single flashes.
z If the second alarm has been triggered, the red LED gives
double flashes.
Dräger Polytron 8700/8720 11
Operation
M
OK
4.2.1 Special symbols
The following special symbols, which indicate the device state,
may be displayed on the right hand side in measurement
mode.
Warning message present – to display warnings,
see chapter 7.1.1 on page 17.
Information can be called up in Info mode, see chapter 4.3
on page 12.
Error message present – to display the error,
see chapter 7.1.2 on page 17
Maintenance signal will be output on the interface,
see chapter 8.3.2 on page 21.
Measurement range of analog interface exceeded
Measurement less than range of analog interface
Analog interface is set to a fixed value (e.g. Multidrop HART
communication) and is not transmitting any measurements.
"Preventive" maintenance: The sensor is ready for operation.
"Preventive" maintenance: The sensor is ready for operation
but is close to the end of its life cycle.
"Preventive" maintenance: The sensor is still ready for
operation but should be changed as soon as possible.
The datalogger is active in rolling mode.
To activate/deactivate, see chapter 8.5.2 on page 25.
The datalogger is active in stacking mode.
To activate/deactivate, see chapter 8.5.2 on page 25.
SIL
SIL is activated (observe Safety Manual - Order Number
9033307).
4.2.2 LED symbols
Symbol LED Description
red Alarm triggered
yellow Malfunction / Warning
green
Switched on
Measurement mode
NOTICE
i
i
The alarm triggering function is only available when
the optionally integrated relay module is used.
When the optional relay PCB is used:
z If the first alarm has been triggered, the red LED gives
single flashes. A1 relay is activated.
z If the second alarm has been triggered, the red LED gives
double flashes. A2 relay is activated.
z If an alarm can be acknowledged and is acknowledged,
the LED stops flashing and lights continuously instead until
the alarm condition is no longer present. The corresponding
relay is deactivated.
4.3 Activating the Info mode
The Info mode is used to present information about the central
device settings and states.
z Tap and hold for 3 seconds.
The device information appears on several displays.
No changes can be made.
z Tap or briefly to switch between the displays.
z The Info mode can be ended at any time by selecting .
z If no button is selected within 30 seconds, the device
reverts automatically to the measurement mode.
Example of the Info mode
(Displays vary depending on sensor):
1. Display - Device information:
07.11.2003 12:34
SW Version
Part No.
Serial No.
DeviceCode: 00006317
Instrument Info
z Date and Time
z Software version
z Part number of the device
z Serial number of the device
z Device code
2. Display - Sensor information:
Sensorname: O
Part No. : 6809630
Serial No.
EEPROM Typ
EEPROM Vers.: 1
Sensor Info
z Sensor description
z Part number of sensor
z Serial number of the sensor
z Software version
z Software revision
3. Display - Sensor configuration:
Gasname : O
Range : 25.00 Vo
4–20 SP
Alarm A1
Alarm A2
Sensor Config.
z Gas description
z Maximum measurement limit and measurement units for
the sensor
z Measurement range and measurement units for the analog
interface. Only displayed when the 4-20 mA interface is
enabled.
: 1
: 8317778
: ARUA0001
2
: XXXXXXX
: 1
2
: 25.00 Vo
: 19.00 Vo
: 23.00 Vo
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A002.eps
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A003.eps
12 Dräger Polytron 8700/8720
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