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

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

Indicates additional information on how to use the product.

4 Dräger Polytron 8700/8720

2 Description

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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

Polytron 8700

ITR 0421

Dräger Safety 23560 Lübeck, Germany

II 2G II 2D

WARNING: Do not open when energized

9N54

0158

CAUTION: Do not open cover. Opening cover with circuits alive provokes risk of Ignition of Hazardous Atmospheres.

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

For monitoring carbon dioxide.

z Measuring range (IDS 01x5): 0 to 0.2 up to 30 vol% CO

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

, for CH4 (methane) also 0 to 100 vol.%

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

). 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.

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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

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VDC

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VDC

NOTICE

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

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

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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)

NOTICE

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.

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

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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

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

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

4 Operation

4.1 Operating fundamentals

4.1.1 Menu navigation

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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

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 » «.

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 » «.

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

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

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

: XXXXXXX

: 1

: 25.00 Vo : 19.00 Vo : 23.00 Vo

1/3

A001.eps

2/3

A002.eps

3/3

A003.eps

12 Dräger Polytron 8700/8720

Operation

z A1 Alarm limit and measurement units z A2 Alarm limit and measurement units

4.4 Switching to the Quick Menu mode

z Tap and hold for 1 to 2 seconds.

The Quick Menu will open. This menu is displayed without any password request. No changes can be made.

The selected information about status and device settings can be retrieved (e.g. warning messages, error messages, installed modules and calibration data).

4.5 Switching to Menu mode (password protected)

1. Tap and hold for longer than 3 seconds.

The password request will be displayed.

2. Enter the password and confirm.

The screen for password entry will be displayed.

3. Set the password and confirm the entry.

The menu hierarchy corresponding to the entered password will open.

z An error message will be displayed if the entered password

is invalid.

Password presets:

Password for the Calibration menu: _ _ _ 1 Password for the Settings menu: _ _ _ 2

4.6.1 Analog signals

In measurement mode the output current of the device is between 4 and 20 mA and is proportional to the measured gas concentration.

The device uses various current values to indicate different operating modes. This conforms to the NAMUR NE43 recommendation. The 4-20 mA interface on the device can be customized and configured to individual requirements. The device is provided with suitable standard settings at the factory (see chapter 13.3 on page 33).

4.6 Measurement mode

WARNING

The configuration and calibration settings must be checked before the device is operated in measurement mode.

z Switch on the power.

{ The device runs through a start-up sequence (LCD test

by inverting the video, LED test, software version and initialization) and starts the warm-up phase. The display indicates that the sensor is ready to start in hh:mm:ss (the countdown begins) and the Polytron 87X0 sends the Maintenance signal.

{ After the warm-up phase, the device passes into the

measurement mode.

{ The current gas concentration, the selected gas and

the units of measure appear on the display.

{ The LED lights green.

NOTICE

The correct date and time settings are important for many functions (see chapter 8.2.3 on page 20).

1 Only displayed when relay is configured.

Dräger Polytron 8700/8720 13

Calibration

5 Calibration

Repeat the calibration of the device at regular intervals as specified in the particular sensor data sheet.

CAUTION

Danger to health! Do not inhale the test gas. Observe the hazard information in the corresponding safety data sheets. Provide venting into a fume cupboard or outside the building.

Always calibrate the zero point first before the sensitivity. Otherwise the calibration will be faulty!

NOTICE

Calibration is not possible if the date and time are not set (see chapter 8.2.3 on page 20).

5.1 Calibrating the device

NOTICE

To perform a zero point or span calibration of the Polytron 87X0 with a PIR 7000/7200, the PIR 7000/ 7200 must be adequately warmed up. Dräger recommends performing a calibration no sooner than 3 hours after the device is switched on. For a calibration, use the splash guard (Order Number: 68 11 911/68 11 912) and the calibration adapter (Order Number: 68 11 610) (does not apply for duct mounting or when the process cuvette / process adapter is used) Observe the installation instructions for the PIR 7000/7200 accessories.

1. Connect the pressure reducer to the calibration gas cylinder.

2. Attach the calibration adapter to the sensor.

3. The gas flow should be between 0.5 and 2.0 l/min.

4. Connect the hose to the calibration adapter.

1 Test gas cylinder 2 Pressure reducer 3Hose 4 Calibration adapter

5.1.1 Zero point calibration

NOTICE

Ambient air can also be used instead of nitrogen or synthetic air to zero the sensor, provided it is insured that the ambient air contains no measured gas or any other gas for which the sensor may exhibit crosssensitivity (see the details in the sensor data sheet). In this case, neither a gas cylinder nor a calibration adapter is required for the zero point calibration.

PIR 7000

00433300.eps

For the Polytron 8720 (with PIR 7200 to detect carbon dioxide), only nitrogen or synthetic air without any CO content may be used for a zero point calibration.

1. Select Calibration > Zero Calibration and confirm.

The Maintenance signal is transmitted. The message Apply zero gas is displayed.

2. Connect zero gas (synthetic air or nitrogen) to the sensor.

3. Select Next and confirm.

The current value is displayed.

After the displayed value is stable:

4. Select Calibrate and confirm. The message Please wait… is displayed. The actual value is displayed.

14 Dräger Polytron 8700/8720

Calibration

z Actual value within the permissible range:

{ Select Next and confirm. { Shut off the test gas and remove the calibration adapter

from the PIR 7000/7200.

z Actual value outside the permissible range:

{ Select Next and confirm. { Wait until the measurement is stable.

5.1.2 Span calibration

1. Select Calibration > Span calibration and confirm.

The Maintenance signal is transmitted. The values for the calibration gas are displayed, e.g.: Gas Methane Unit %LEL Conc. 50.0

All three paramrters can be changed:

z Select Gas and confirm.

{ Select the desired calibration gas from the list and

confirm.

z Select Unit and confirm.

{ Select the desired unit from the list and confirm.

z Select Conc. and confirm.

{ Set the desired concentration of the calibration gas.

When the settings are correct:

2. Select Next and confirm. A message such as, e.g. Gas flow to METHANE is displayed.

3. Connect the calibration gas to the sensor.

4. Select Next and confirm. The current value is displayed.

After the displayed value is stable:

5. Select Next and confirm. The message Please wait… is displayed. The actual value is displayed.

z Actual value within the permissible range:

{ Select Next and confirm. { Shut off the test gas and remove the calibration adapter

from the PIR 7000/7200.

z Actual value outside the permissible range:

{ Select Next and confirm. { Wait until the measurement is stable.

z A calibration can be aborted at any time.

5.2 Performing Auto Calibration

The device offers the option of an automatically sequenced calibration. This reduces the number of otherwise manual interactions with the device. The auto calibration is only suitable for experienced users, as calibration errors can occur here as a result of tightened procedures.

NOTICE

Not all of the available sensors and gases support auto calibration. If the function is not available, a manual calibration must be performed.

1. Select Settings > Sensor > Autocal. set. to enable or

disable the function.

2. Supply fresh air or feed nitrogen or compressed air at a flow rate of 0.5 - 2.0 L/min to the sensor.

WARNING

It must be insured that during the zero point calibration, no measured gas is present in the supplied calibration gas. Particularly with a fresh air calibration, Dräger recommends performing a second, independent measurement. Some sensors may only be calibrated with synthetic air or nitrogen (observe the relevant sensor data sheets).

3. Select Calibration > Auto cal. and confirm.

{ Please wait... is displayed and a calibration of the zero

point is performed automatically.

{ After a successful zero point calibration, the span

calibration is started.

{ The calibration gas concentration, the units and, where

appropriate, the calibration gas are displayed and can be changed.

4. Start the calibration with Next; Back to menu aborts the calibration.

NOTICE

After 10 minutes without confirmation, the device reverts to measurement mode without performing a calibration.

5. Feed the relevant calibration gas to the sensor at a flow rate of 0.5 - 2.0 L/min.

{ When the measured value is stable, the device performs

the calibration automatically.

{ After a successful calibration, the measurement and

the message Value OK? are displayed.

6. When the measurement is stable, shut off the calibration gas and wait until the measurement is below any possible alarm thresholds again.

z The calibration is performed again with Redo. z Complete the calibration with Accept value.

The device returns to the measurement mode.

Dräger Polytron 8700/8720 15

Menu overview

6 Menu overview

Back to

◄

measure

Information page 17 Instrument page 17

Sensor page 17

Calibration page 14 Data logger page 17

Settings page 18

Zero calibration page 14 Span calibration page 15 Auto CAL page 15

SIL activation page 18 Instrument page 18 Communication page 21 Sensor page 24 Data logger

Datalogr. on/off Set Datalogger Clear datalogr

Sample time Peak/Average Trigger on/off Trigger value Stack/Roll

Warnings Faults Device codes Modules

Last cal. date Next cal. date

Logger status Graph

Alarm Passwords Date and time Language Function key Device init SW dongle Display

HART interface Analog interface Profibus address

Auto CAL Sensortest Sensor lock Sensor type Gas settings Reset sensor

required!

Cal. interval Set Sensortest Fast response

page 17 page 17 page 17 page 17

page 17 page 17

page 18 page 20 page 20 page 20 page 20 page 20 page 20 page 20

page 21 page 21 page 23

page 24 page 24 page 23 page 23 page 23 page 23

page 23 page 23 page 23

Alarm on/off Relay A1 Relay A2 Alarm A1 Alarm A2 Set alarm A1 Set alarm A2 Set fault

Calibration PWD Settings PWD

Display contrast Operating mode Display test

Polling address Unique identifier Tag Dräger REGARD

Fault current Warning Warning interval Warning current

Maintenance signal Maintenance current Beamblock on/off Beambl. current Analog offset Set current Set concentr. Set fault Set warning Set mainten. Set beamblock

page 18 page 18 page 18 page 18 page 19 page 19 page 19 page 19

page 20 page 20

page 20 page 20 page 21

page 21 page 21 page 21 page 21

page 21 page 21 page 21 page 22

page 22 page 22 page 22 page 22 page 22 page 23 page 23 page 23 page 23 page 23 page 23

16 Dräger Polytron 8700/8720

Information menu

7 Information menu

Specific data about the device, the sensor used and the measured gas are summarized in this menu. The menu can be accessed without a password. Changes to the data are not possible.

7.1 Device settings

7.1.1 Displaying warning messages

To display warnings in plain text with warning numbers, see chapter 9 on page 27. The symbol is displayed when there is a warning present.

z Select Information > Instrument > Warnings and confirm.

Warnings are displayed in plain text. If several warnings are present, this is indicated in the upper right-hand corner of the display, e.g., 1/3 = Screen 1 of 3.

7.1.2 displaying fault messages

To display faults present in plain text with fault numbers, see chapter 9 on page 27. The symbol is displayed when there is a fault present.

z Select Information > Instrument > Faults and confirm.

Faults are displayed in plain text. If several faults are present, this is indicated in the upper right-hand corner of the display, e.g., 1/2 = Screen 1 of 2.

7.1.3 Displaying device codes

Display of codes for faults/warnings in a numerical table (hexadecimal). The symbol is displayed when there is a fault present.

z Select Information > Instrument > Device codes and

confirm. Faults are displayed as a hexadecimal numerical code in tabular form. If all the numerical groups are displayed as 00, there are no faults or warnings present.

7.2 Sensor information

This menu contains the functions for retrieving the calibration data.

7.2.1 Display last calibration date

Display the date of the last calibration.

z Select Information > Sensor > Last cal. date and confirm.

The date of the last calibration is displayed

7.2.2 Display next calibration date

Display the date of the next calibration.

z Select Information > Sensor > Next cal. date and confirm.

The date when the next calibration of the sensor is due is displayed.

7.3 Datalogger information (only with

data dongle)

This menu contains the functions for querying the datalogger.

7.3.1 Displaying the datalogger status

z Select Information > Datalogger > Logger status

and confirm. The current status of the datalogger is displayed: Datalogr. : on or off (datalogger on or off)

z To switch the datalogger on/off, see chapter 8.5.1 on

page 25.

7.3.2 Displaying a graph of measured values

Show the measurements from the sensor on a 15-minute time axis.

z Select Information > Datalogger > Graph and confirm.

NOTICE

The fault code is very helpful for technical support and should always be stated in full in the event of a fault.

7.1.4 Displaying installed modules

Display of the installed hardware modules.

z Select Information > Instrument > Modules and confirm.

A list of all possible modules is displayed. The installed modules are identified by a , those not installed by a .

z Mark a module and request detailed information with .

Dräger Polytron 8700/8720 17

Settings menu

8 Settings menu

This menu contains all the functions that are required for the individual configuration of the device.

8.1 Switching SIL lock on or off

NOTICE

SIL lock is only available for certain sensors (see also the sensor data sheets or the Dräger Polytron 8X00 Safety Manual).

With this function, the device can be protected against unauthorized changes to the configuration with a password. Changing the configuration (e.g., changing the measurement range from 100 %LEL to 50 %LEL) will cause the device to display all the safety-relevant parameters to the user once more before it returns to the measurement mode. The correctness of the parameters and settings must be confirmed.

1. Select Settings > Instrument > Set SIL.

2. Select the desired state On or Off and confirm.

NOTICE

When SIL is activated, the device displays all the important parameters and setting before returning to measurement mode. Check the parameters and settings carefully and confirm.

8.2 Device settings

8.2.1 Alarm settings (only with installed relay module)

Alarms issued via relays and LEDs.

CAUTION

In the normal state, the relays in the relay module are energized. That is, the relays change their state if the power supply is interrupted!

Switching the alarm on or off

1. Select Settings > Instrument > Alarm > Alarm on/off.

2. Select the desired state On or Off and confirm.

CAUTION

If the alarm is inactive, the alarm state will not be issued by the LEDs or the relay interface! A warning message will be shown on the display!

Configuring Relay A1 or A2

This function is used to define whether the alarm relay is energized in standard operation or in an alarm state. If the configuration of the relay is set to "Normally energized", the corresponding relay contact is closed in the normal case and drops out in the event of an alarm. This configuration results in an alarm being triggered in the event of a loss of power to the transmitter (fail-safe). The fault relay is factory-configured to "Normally energized" and cannot be changed.

1. Select Settings > Instrument > Alarm > Relay A1 or Relay A2 and confirm.

2. Select Normal energy supply oder Energy supply

during alarm and confirm.

Configuring Alarm A1 or A2

1. Select Settings > Instrument > Alarm > Alarm A1 or Alarm A2 and confirm.

2. Select the line for entering the alarm limit and confirm.

3. Set the threshold and confirm. The setting for the alarm threshold is displayed.

4. Select Next and confirm. The setting for the alarm direction is displayed.

5. Select Rising or Falling and confirm.

6. Select Next and confirm. The setting for the alarm direction is displayed.

7. Select Latching or Non Latching and confirm.

8. Select Next and confirm. The setting for the acknowledgement is displayed.

9. Select Acknowledgeable or NonAcknowledgeabl or PreAcknowledgeabl and confirm.

10. Select Next and confirm.

The functional relationship between the various settings is explained in the following table:

Latching and acknowledgeable

Latching and not acknowledgeable

Latching and preacknowledgeable

Non-latching and acknowledgeable

Non-latching and not acknowledgeable

Non-latching and preacknowledgeable

The alarm must be acknowledged manually. The alarm can be acknowledged when the alarm condition is still present.

The alarm must be acknowledged manually. The alarm can only be acknowledged when the alarm condition is no longer present.

The alarm must be acknowledged manually. The alarm can be acknowledged when the alarm condition is still present but will only be reset when the alarm condition is no longer present.

The alarm is acknowledged automatically when there is no longer any alarm condition present, or it can be acknowledged manually.

The alarm is acknowledged automatically when there is no longer any alarm condition present. The alarm cannot be acknowledged manually.

Corresponds to the alarm behavior for "Non-latching" and "Not acknowledgeable".

18 Dräger Polytron 8700/8720

Settings menu

Overview of standard alarm settings (for Polytron 8700 with PIR 7000, configured for methane, full scale reading of 100 %LEL)

A1/Relay 1 A2/Relay 2 Alarm threshold 20 %LEL 40 %LEL Hysteresis 0 %LEL 0 %LEL Relay Normally

Relay alarm: Direction

Latching mode Non-latching Latching Acknowledgement

mode

The function for setting the A1 hysteresis is opened. This function permits the setting of a zone within which a triggered relay maintains its status until the gas concentration is outside the zone. This function prevents relays from chattering at an alarm threshold. Example: A2 at 40 %LEL methane Maximum possible hysteresis: 3 %LEL Alarm activation at measured values ≥40 %LEL Alarm deactivation at measured values ≤37 %LEL (40 %LEL 3 %LEL)

energized

Rising Rising

Acknowledgeable Not

Normally energized

acknowledgeable

1. Select Settings > Instrument > Alarm > Set Alarm A2

and confirm.

2. Select On or Off and confirm.

When the function is activated, the relay and the interface are set to the A2 alarm status and the red LED gives double flashes.

Testing Fault status

NOTICE

When the function Set fault is exited in the menu, the Polytron 87X0 reverts automatically to measurement mode.

This function simulates the Fault alarm.

1. Select Settings > Instrument > Alarm > Set fault

and confirm.

2. Select On or Off and confirm.

When the function is activated, the Fault relay and the 4-20 mA interface are set to the fault current and the yellow LED lights.

11. Select the line for entering the hysteresis and confirm.

12. Set the hysteresis for A1 and confirm. The hysteresis setting for A1 is displayed.

13. Select Next and confirm. The settings for A1 are displayed.

14. Select and confirm with Confirm. The settings for the A1 alarm are now complete.

Testing Alarm A1

NOTICE

When the function Set Alarm A1 is exited in the menu, the Polytron 87X0 reverts automatically to measurement mode.

This function simulates the A1 alarm status.

1. Select Settings > Instrument > Alarm > Set Alarm A1 and confirm.

2. Select On or Off and confirm.

When the function is activated, the relay and the interface are set to the A1 alarm status and the red LED gives single flashes.

Testing Alarm A2

NOTICE

When the function Set Alarm A2 is exited in the menu, the Polytron 87X0 reverts automatically to measurement mode.

This function simulates the A2 alarm status.

Dräger Polytron 8700/8720 19

Settings menu

8.2.2 Changing passwords

The passwords for calibration (zero and span calibrations) and for the settings (full configuration) can be defined in this menu.

1. Select Settings > Instrument > Passwords > Calibration/ Settings PWD and confirm.

2. Select the line for the password settings and confirm.

3. Set the password and confirm. The setting for the password is displayed.

4. Select Confirm and confirm.

8.2.3 Setting the date and time

1. Select Settings > Instrument > Date and time and confirm.

2. Select the desired line and confirm in order to switch to the Change mode.

3. Set each digit and confirm each setting.

4. Select Confirm and confirm.

8.2.4 Changing the display language

1. Select Settings > Instrument > Language and confirm.

2. Select the desired language from the list and confirm.

8.2.5 Configuring the function key

This function is used to assign a predefined function to the

key. The selected function is activated by briefly taping the

key.

8.2.6 Resetting the device to factory settings

The following device parameters are reset to the factory settings with this function (see chapter 13.3 on page 33).

z Alarm parameters z Passwords z Language z Function key z HART interface z Data logger z Analog interface z Relay configuration

1. Select Settings > Instrument > Device init. and confirm.

2. Select Confirm and confirm in order to reset the device to

the factory settings.

8.2.7 Deactivating the software dongle

This function allows the SW dongles to be deactivated before they are removed or in the event of a fault. A dongle can only be reactivated by switching the power to the device off and on.

1. Select Settings > Instrument > SW dongle > Dongle datalogger/Dongle sensortest/Dongle diagnostic and confirm.

2. Select Deactivate func. and deactivate Dongle datalogger/ Dongle sensortest/Dongle diagnostic with .

1. Select Settings > Instrument > Function key and confirm.

2. Select the desired function and confirm.

z Repeating the confirmation deactivates the selected

function.

z If Bumptest is selected:

The maintenance symbol is shown on the right hand side of the display and the maintenance signal is output. Repeating the confirmation ends the bump test and the device reverts to the normal measurement mode.

z In measurement mode, the selected function can be

activated by briefly pressing .

Selection options:

Graph (only with data logging)

The measurements from the sensor are displayed graphically on a time axis (see chapter 7.3.2 on page 17).

Faults Faults are displayed in plain text

(see chapter 7.1.2 on page 17).

Warnings Warnings are displayed in plain text

(see chapter 7.1.1 on page 17).

Bump test The bump test allows gas to be applied

without an alarm being issued. The maintenance signal is output on the 4-20 mA output.

Sensor vitality Shows the remaining sensor vitality

(only available for certain sensors).

8.2.8 Display settings

Changing the contrast

1. Select Settings > Instrument > Display > Display contrast and confirm.

2. Change the contrast and confirm.

Changing the display mode

The display of measured values can be turned on or off with this function.

1. Select Settings > Instrument > Display > Display mode and confirm.

2. Select Standard or Non display and confirm.

If "Non display" has been selected, the display shows the start screen and the symbols.

If the relay option is set and an alarm is triggered, the display shows the current gas concentration and the red LED flashes, regardless of the selected display mode.

20 Dräger Polytron 8700/8720

Settings menu

Switching the display test on or off

The function of the display and the LEDs is tested with this function.

1. Select Settings > Instrument > Display > Displaytest

and confirm.

2. Select On or Off and confirm.

When this function is activated, the display is shown inverted and all the LEDs are lit.

8.3 Communication settings

8.3.1 Settings for the HART interface (only for devices with the optional HART interface)

This group contains the setting functions for the HART interface.

Setting the polling address

The polling address configures the device for analog operation (4 to 20 mA) or multidrop operation. Analog operation (4 to 20 mA) is activated by setting the polling address to 0. For multidrop operation the polling address must be configured to a value between 1 and 15, which will result in the analog interface being deactivated and set to a constant current of approx. 1 mA. To allow the control unit to request the Unique Identiﬁer (unique HART address) with HART command #0, all the devices on a line must be configured with different polling addresses. It is advisable to choose a sequence starting with 1 and incrementing continuously. This setting corresponds to HART command #6 (Write Polling Address).

1. Select Settings > Communication > HART interface >

Polling address and confirm.

2. Select the address line for the entry and confirm in order to

switch to the Change mode.

3. Set the polling address and confirm.

4. Select Confirm and confirm.

Displaying the Unique Identifier

This function enables reading of the Unique Identifier (unique HART address), which has to be known for almost all the HART addressing commands. However this information is only required for those systems that are not able to read back the Unique Identifier using HART command #0 in Short-Frame Format or HART command #11. The display corresponds to the address for HART command #0 (Read Unique Identiﬁer) or #11 (Read Unique Identiﬁer associated with Tag).

z Select Settings > Communication > HART interface >

Unique Identifier and confirm.

The Unique Identifier is displayed.

Changing the measuring point name

The tag can be used to identify special devices. It can contain up to 8 alphanumeric characters. The tag can also function as an address for reading the unique identifier from the device using HART command #11 (Read Unique Identifier Associated With Tag), even when the polling address is unknown. This requires that a unique tag has previously been configured.

1. Select Settings > Communication > HART interface > Tag and confirm.

2. Select the tag line for the entry and confirm.

3. Set the tag and confirm.

4. Select Confirm and confirm.

Selecting Dräger REGARD

This function enables switching between different HART protocols.

NOTICE

REGARD SW 2.0 is the standard setting. REGARD SW 1.4 must be set on REGARD controllers with SW 1.4.

1. Select Settings > Communication > HART interface > Dräger REGARD and confirm.

2. Select REGARD SW 2.0 or REGARD SW 1.4 and confirm.

8.3.2 Settings for the analog interface

The test and setting functions for the analog interface are summarized in this menu.

Setting the fault current

This function is used to define the current for the fault signal on the analog interface.

1. Select Settings > Communication > Analog interface > Fault current and confirm.

2. Select the fault current line and confirm.

3. Set the currrent and confirm.

4. Select Confirm and confirm.

Switching the warning signal on or off

This function is used to switch the warning signal on the analog interface on and off. If an existing warning is to be output over the analog interface, the warning signal must be turned on. During a warning, the current on the analog interface is switched to the "Warning" status for one second. The measurement is transmitted for the rest of the time. The interval between warning signals and the analog signal phase can be customized.

To switch the warning signal on or off:

1. Select Settings > Communication > Analog interface > Warning and confirm.

2. Select On or Off and confirm.

Setting the warning interval

This function is used to set the interval between the warning signals and the analog interface.

1. Select Settings > Communication > Analog interface > Warning interval and confirm.

2. Select line T1 for the entry and confirm.

3. Set the time and confirm. The setting for Time T1 is displayed.

4. Select Next and confirm.

5. Select line T2 for the entry and confirm.

6. Set the time and confirm each setting. The setting for Time T2 is displayed.

7. Select Confirm and confirm.

Dräger Polytron 8700/8720 21

Settings menu

Value

0633300.eps

[s]

1,1

[mA]

0,7

[mA]

[s]

0533300.eps

Setting the warning current

This function is used to define the current for the warning signal on the analog interface.

1. Select Settings > Communication > Analog interface > Warning current and confirm.

2. Select the current line for the entry and confirm.

3. Set the currrent and confirm. The setting for the warning current is displayed.

4. Select Confirm and confirm.

Changing the maintenance signal type

This function is defines the type of signal used on the analog interface for the maintenance signal.

1. Select Settings > Communication > Analog interface > Maint. signal and confirm.

2. Select static or dynamic signal type and bestätigen.

NOTICE

The static signal type is a constant current. The current can be configured. The dynamic signal type is a square wave signal with the following characteristics:

Setting the maintenance current

This function is used to define the current for the maintenance signal on the analog interface.

1. Select Settings > Communication > Analog interface > Maint. current and confirm.

2. Select the current line for the entry and confirm.

3. Set the currrent and confirm. The setting for the maintenance current is displayed.

4. Select Confirm and confirm.

NOTICE

The maintenance current can only be set if the maintenance signal has been set to static. This function is not available otherwise.

Switching Beam Block on or off (for PIR 7000/7200 only)

If the Beam Block signal is enabled and the optical surfaces of the PIR 7000 or PIR 7200 are dirty, a Beam Block signal will be output over the analog output of the transmitter. In the case of a high and potentially dangerous gas concentration of more than 15 % LEL (PIR 7000) or 15 % of the full-scale reading (PIR7200), the device will switch back to the normal measuring mode. If the contamination on the surfaces increases and correct measurement is not possible, the device transmits a fault signal.

1. Select Settings > Communication > Analog interface > Beamblock on/off and confirm.

2. Select On or Off and confirm.

Setting the beam block current (for PIR 7000/7200 only)

This function is used to define the current for the beam block signal on the analog interface.

1. Select Settings > Communication > Analog interface > Beambl. current and confirm.

2. Select the current line for the entry and confirm.

3. Set the currrent and confirm. The setting for the beam block current is displayed.

4. Select Confirm and confirm.

Setting the 4-20 mA offset

This function can be used to set an adjustable offset current on the analog interface. The offset is constant over the entire range of the output signal.

1. Select Settings > Communication > Analog interface > Analog offset and confirm.

2. Select the current line for the entry (max. range: -0.2 to

1.5 mA) and confirm.

3. Set the currrent and confirm. The setting for the 4-20 mA offset is displayed.

4. Select Confirm and confirm.

22 Dräger Polytron 8700/8720

Settings menu

Test functions for the analog interface

NOTICE

Alarms in the central controller may be triggered by these functions! If necessary, the alarms in the central controller must be disabled beforehand.

Setting current signals

Using this function, various currents in the range from 0 to 22 mA can be set on the analog interface.

1. Select Settings > Communication > Analog interface > Set current and confirm.

2. If the alarm in the control unit is disabled, confirm the message Inhibit all alarms.

3. Select the current line for the entry and confirm.

4. Set the currrent and confirm. The setting for the current is displayed.

5. Select Next and confirm.

6. Select Set current out or Current off and confirm.

7. Select Next and confirm. The function is terminated.

8. After the alarm settings in the control unit have been reenabled, confirm the Enable all alarms message.

Setting the concentration

This function is used to simulate various concentrations in the range between 0 and 100 % of the selected unit of measure. The current output is set to correspond to the selected concentration.

1. Select Settings > Communication > Analog interface > Set concentr. and confirm.

2. If the alarm in the control unit is disabled, confirm the message Inhibit all alarms.

3. Select the concentration line for the entry and confirm.

4. Set the concentration and confirm. The setting for the concentration is displayed.

5. Select Next and confirm.

6. Select Set concentr. or Concentration of and activate.

7. Select Next and confirm. The function is terminated.

8. After the alarm settings in the control unit have been reenabled, confirm the Enable all alarms message.

Testing the maintenance signal

This function is used to set the analog interface to the maintenance signal.

1. Select Settings > Communication > Analog interface > Set mainten. and confirm. Select On or Off and confirm.

{ The current for the maintenance signal will be

transmitted on the analog interface.

Testing the beam block signal (for PIR 7000/7200 only)

This function is used to set the analog interface to the beam block signal.

1. Select Settings > Communication > Analog interface > Set beamblock and confirm.

2. Select On or Off and confirm.

{ The current for the beam block signal will be

transmitted on the analog interface.

8.3.3 Profibus address

Not yet active - for future functions.

Testing the Fault signal

This function is used to set the analog interface to the fault current.

1. Select Settings > Communication > Analog interface > Set fault and confirm.

2. Select On or Off and confirm. The current for the Fault signal will be transmitted on the analog interface.

Testing the warning signal

This function is used to set the analog interface to the warning signal.

1. Select Settings > Communication > Analog interface > Set warning and confirm.

2. Select On or Off and confirm. The current for the warning signal will be transmitted on the

analog interface.

Dräger Polytron 8700/8720 23

Settings menu

8.4 Sensor settings

8.4.1 Switching Auto CAL on or off

NOTICE

The auto-calibration from the Calibration menu is only available if this function is enabled.

1. Select Settings > Sensor > Set auto calibration and

confirm.

2. Select On or Off and confirm.

8.4.2 Sensor testsettings

NOTICE

The sensor test settings are only available for certain sensors.

The setting functions for the sensor self test are summarized in this group of functions.

8.4.3 Switching the sensor test on or off (for EC

When the sensor self test is enabled, the device continuously checks the sensor to insure reliable functioning. If the sensor does not pass the self test, an appropriate warning or fault indication is issued.

1. Select Settings > Sensor > Sensor test and confirm.

2. Select On or Off and confirm.

8.4.4 Switching the sensor lock on or off (for EC sensors

This function is used to activate or deactivate the sensor interlock.

1. Select Settings > Sensor > Sensor lock and confirm.

2. Select On or Off and confirm.

sensors only)

and PIR 7000/7200 only)

Standard setting

On = The device will only accept a new sensor if

Off = The device will also accept other sensor

=Off

the Part Number (= Dräger Order Number), and hence the sensor type, is identical to that of the previous sensor.

types and with thus adopt the default settings for the sensor, i.e., in this case the configuration of the device will be altered.

8.4.6 Changing the gas settings

Settings for gas type, measuring range and measurement units can be made in this menu.

1. Select Settings > Sensor > Gas setting and confirm.

2. Select the measured gas from the list and confirm. The measurement units display will be shown.

3. Select the measurement units and confirm. The full scale reading display will be shown.

4. Set the full scale reading and confirm. The setting for the full scale reading is displayed.

5. Select Next and confirm. an overview of the new gas settings is displayed.

z Return to the previous view with Previous or confirm the

settings with Confirm.

Information about the measured gas

If the PIR 7000/7200 sensor is used, the measured gas can be selected from many different gases. These substances are already stored in the PIR 7000/7200 as library substances. Selecting a library function has the following effects:

z The name of the library substance is shown in the display. z The selected substance is automatically selected as the

calibration gas.

z The output signal of the PIR 7000/7200 is linearized and

temperature compensated for this substance.

z All other necessary parameters for this substance such as,

e.g., detection limit or measuring ranges are updated and adopted for the Polytron 8000.

z List of measured gases: see chapter 12 on page 30.

Information about measurement units

The Polytron 8000 represents the measured value in various optional units. The following are available:

z ppb z L/m3 z ppm z mL/L z vol.% z mL/m3 z %LEL z uL/L z %LIE z uL/m3 z %UEG

The Polytron 8000 automatically calculates the correct value.

Information about the category

NOTICE

This selection is only displayed if %LEL, %UEG or %LIE was selected for the units.

8.4.5 Setting the sensor type (for DD sensors only)

This function is used to set the sensor type.

1. Select Settings > Sensor > Sensor type and confirm.

2. Select sensor type PIR 7000 (for all PIR 7000/7200 variants) or PIR 3000 and confirm.

24 Dräger Polytron 8700/8720

If the units %UEG, %LEL or %LIE are selected, the device offers various fixed categories based on the standards of NIOSH, IEC or PTB. With Custom specific it is possible to enter an individual conversion of a volume concentration [vol.%] into % of the Lower Explosive Limit [%LEL] The maximum selectable limits are approx +-25 % of the NIOSH category applicable to the particular gas.

Settings menu

Example: NIOSH Category, measured gas: Methane 100 %LEL corresponds to 5.0 vol.% Customer specific: Measured gas: methane 100 %LEL corresponds to 4.7 vol.% methane

Information about the 20 mA measuring range

The full scale reading can be set with this function. At the full scale reading set, the device outputs 20 mA on the 4-20 mA interface.

8.4.7 Resetting the sensor to factory settings

This function resets all the sensor parameters to the factory default settings (see chapter 13.3 on page 33).

1. Select Settings > Sensor > Reset sensor required! and

confirm.

2. Select Confirm and confirm.

8.4.8 Setting the calibration interval

NOTICE

The calibration interval can be set between 0 and 720 days.

1. Select Settings > Sensor > Calibration interval

and confirm.

2. Set the calibration interval and confirm.

8.4.9 Sensor test

NOTICE

On means that the PIR 7000/7200 is in the "Fast response" mode. Off means that the PIR 7000/7200 is in the "Normal response" mode.

8.5 Datalogger settings (only with data dongle)

NOTICE

The functions are only available if the Polytron 8000 is fitted with the data dongle (Order Number 83 17 618), see chapter 3.10 on page 10.

The datalogger has a storage capacity of approx. 3000 measurements. At a sampling interval of 1 minute, this would allow monitoring for approx. 50 hours. The monitoring time can be significantly increased if the Trigger function is enabled.

The results in the datalogger can only be evaluated with the PolySoft 8000 PC software. An evaluation of the datalogger contents over the last 15 minutes is available in the menu under Information > Datalogger > Graph (see chapter 7.3.2 on page 17).

8.5.1 Switching the datalogger on or off

1. Select Settings > Datalogger > Datalogr. on/off and

confirm.

2. Select On or Off and confirm.

NOTICE

This function is not available when the PIR 7000/7200 sensor is used.

8.4.10 Switching Fast Response on or off (for PIR 7000/ 7200 only)

CAUTION

Activating the Fast response function increases the repeatability error by a factor of 2. A complete calibration must always be performed after changing the response.

In the default configuration, the device has a minimum response time of 4 seconds. The device can be converted to a fast response with this function. This can be expedient when supplying the measured gas via a pump or when operating in pipes, where rapid monitoring of the change in the measured gas concentration is desired (see also the Technical Handbook for the PIR 7000/7200).

1. Select Settings > Sensor > Fast response and confirm.

2. Select On or Off and confirm.

8.5.2 Setting up the datalogger

Setting the sampling interval

1. Select Settings > Datalogger > Datalogr. on/off > Sample time and confirm.

2. Select the sample time and confirm.

Setting peak/average

1. Select Settings > Datalogger > Set datalogger > Peak/ average and confirm.

2. Select the desired function and confirm.

Peak value The measured maximum (for O2, the minimum

value) value of the concentration within the selected sampling interval is stored.

Average The average value of all the concentrations

measured within the selected sampling time is stored.

Dräger Polytron 8700/8720 25

Settings menu

Switching the trigger on or off

1. Select Settings > Datalogger > Set datalogger > Trigger on/off and confirm.

2. Select On or Off and confirm.

On Concentrations will only be stored if they

exceed (relative to the last stored value) a threshold set under Trigger Value.

Off The measurements made within the set

Setting the trigger threshold

The trigger threshold is specified as a percentage of the full scale reading. Example: A trigger threshold of 2 % is entered for a full scale reading of 500 ppm. Consequently the datalogger will only store measurements if they deviate (relative to the last stored value) by 10 ppm.

1. Select Settings > Datalogger > Datalogr. on/off > Trigger value and confirm.

2. Set the trigger value and confirm.

Setting the storage mode

1. Select Settings > Datalogger > Set Datalogger > Stack/ Roll and confirm.

2. Select the desired condition and confirm

sampling time are always stored.

Overwrite When the capacity of the datalogger is

used up, the older data will be overwritten.

Hold When the capacity of the datalogger is

8.5.3 Clearing the datalogger

1. Select Settings > Datalogger > Clear Datalogr. and confirm.

2. To clear the datalogger, select Confirm and confirm.

used up, no more data can be stored. An appropriate warning is issued.

26 Dräger Polytron 8700/8720

9 Troubleshooting

9.1 Fault reference:

Fault number Cause Remedy

#001 #003 #004 #005 #011 - #014 #020 - #024 #043 #060 #067

#002 #025 - #027 #030 - #034 #041 #042 #044 #050 #052 #081 #085

Serious device fault, various causes.

Serious data error in the device, various causes.

Have the device checked by DrägerService

Reset the device to factory settings (see chapter 8.2.6 on page 20). If this fault occurs again: Have the device checked by DrägerService.

Troubleshooting

®1

#10 4-20 mA interface cable not connected. Disconnect the powwer supply, connect the 4-20 mA interface

and reconnect the power supply.

#051 #054

#055 Faulty span calibration was performed. Perform new span calibration (see chapter 5.1.2 on page 15). #064

#071 #083 PIR 7000/7200 optics dirty. Clean PIR 7000/7200 optics. #086 Supply voltage outside range. Check supply voltage. #087 Device fault, 4 - 20 mA PIR 7000/7200. Check 4-20 mA connection on PIR 7000/7200. #090 Sensor lock function is activated. A sensor

#094 #095

#096 Differing SIL password on PIR 7000/7200. Enter the password again.

1 DrägerService® is a registered trademark of Dräger.

Faulty zero-point. Perform zero-point calibration (see chapter 5.1.1 on page 14).

Communications fault. Check contact with PIR 7000/7200.

Disable the sensor lock function (see chapter 8.4.4 on with a different part number than was previously configured has been used.

Data error in the device. Reset the sensor to factory settings (see chapter 8.4.7 on

page 24) or use a new sensor with the same part number.

page 25).

If this fault occurs again:

Have the device checked by DrägerService.

Dräger Polytron 8700/8720 27

Troubleshooting

9.2 Warning reference

Warning number

#101 Datalogger in Stack mode is 100 % full and is

#102 Datalogger in Stack mode is 90 % full. Read out the data as soon as possible, clear the datalogger and

#103 #106

#104 No valid date or time set. Set time and date (see chapter 8.2.3 on page 20). #107 Battery almost used up. Have the device checked by DrägerService. #110

#111 #112

#113 Alarms disabled. Enable alarms (see chapter 8.2.1 on page 18). #164

#165

#167 #170

#171 Increased zero-point offset. Perform zero-point calibration (see chapter 5.1.1 on page 14). #172 PIR 7000/7200 optics dirty. Clean PIR 7000/7200 optics. #182 Autocalibration not possible with PIR 7200. Perform new zero-point and span calibration (see chapter 5.1.2

Cause Remedy

Read out the data, clear the datalogger and start again.

not logging any more data.

start again.

Data error in the device. Functions such as the datalogger or dongle functions may no longer be available.

SW dongle has been removed without logging out.

Sensor warm-up phase has not ended yet. Increased measurement error must be expected.

Calibration interval expired. Recalibrate the device (see chapter 5 on page 14).

Reset the device to factory settings (see chapter 8.2.6 on page 20). If this fault occurs again: Have the device checked by DrägerService.

Disable SW dongle (see chapter 8.2.7 on page 20).

Wait until the sensor has warmed up.

on page 15).

28 Dräger Polytron 8700/8720

Maintenance

10 Maintenance

10.1 Maintenance intervals

10.1.1 During commissioning

z Check calibration. z Check signal transmission to controller and triggering of

alarms.

10.1.2 Every 6 months

z Inspection by trained service personnel.

The inspection intervals must be established in each individual case and shortened if necessary, depending on technical safety considerations, engineering conditions, and the technical requirements of the equipment. Contact DrägerService if you wish to take out a service contract and have any repairs carried out.

10.1.3 As required

z Change the sensor, see chapter 10.2 on page 29.

10.2 Changing the sensor

WARNING

As a matter of principle, always check a newly installed sensor with measured gas to insure correct operation.

CAUTION

When the sensor is changed, all settings and parameters must be checked for correctness.

NOTICE

The analog interface of the PIR 7X00 must be configured to the following values (PIR 7x00 factory settings): Maintenance signal: 3.0 mA Alt. maintenance signal: Off Beam block warning: 2 mA (inactive) Alternating warning signal: Off Fault signal: 1 mA

The sensor is changed as follows:

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. Disconnect the sensor cable.

5. Unscrew the PIR 7000/7200.

6. Pass the sensor cable through the threaded connection in the housing.

7. Screw in the PIR 7000/7200.

WARNING

Five threads must be engaged to insure explosion protection.

8. Plug the sensor cable into the socket.

9. Re-fit the sensor electronics and enclosure.

10. Screw the housing cover on again and tighten the retaining screw.

11. Switch on the power to the device.

12. If necessary, switch off SIL activation (see chapter 8.1 on page 18).

13. Calibrate the device if necessary (see chapter 5 on page 14).

14. If required, switch on SIL activation (see chapter 8.1 on page 18).

10.3 Changing the main electronics

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. Remove the protective caps for the connectors.

5. Unscrew the connector locking ring for the power supply and relay and withdraw the connector.

6. Change the main electronics.

7. Plug the sensor cable and the connector for the power supply and relay into the corresponding sockets and screw them tight.

8. Re-fit the dust caps for the connectors.

9. Re-fit the sensor electronics and enclosure.

10. Screw the housing cover on again and tighten the retaining screw.

11. Switch on the power to the device.

12. Check and adjust the configuration as required.

13. Calibrate the device if necessary (see chapter 5 on page 14).

11 Disposal

Disposal of electrical and electronic equipment:

EU-wide regulations governing the disposal of electric and electronic appliances which have been defined in the EU Directive 2002/96/EC and in national laws have been effective from August 2005 and apply to this device. Common household appliances can be disposed of using special collecting and recycling facilities. However, as this device has not been registered for household usage, it must not be disposed of through these means. The device can be returned to your national Dräger Safety Sales Organization for disposal. Please do not hesitate to contact the above if you have any further questions on this issue.

Dräger Polytron 8700/8720 29

Substances in the gas library (PIR 7000)

12 Substances in the gas library (PIR 7000)

NOTICE

The gas code is an internal Dräger designation. Code 001, for example, is assigned to the gas methane. Any change to the gas to be measured will result in a change to the basic settings for the Polytron 8000. Dräger recommends checking all settings and configurations.

12.1 Polytron 8700 Type 334

Substance CAS No. Gas Code

Acetaldehyde 75-7-0 402 Acetone 67-64-1 453 Allyl chloride 107-05-1 723 Benzene 71-43-2 260 1,3-Butadiene 106-99-0 172 n-Butane 106-97-8 104 i-Butane 75-28-5 114 1-Butene 106-98-9 154 i-Butene 115-11-7 164 2-Butoxyethanol (n-Butyl glycol) 111-76-2 384 n-Butyl acetate 123-86-4 554 n-Butyl acrylate 141-32-2 584 Chlorobenzene 108-90-7 280 1-Chloro-1,1-difluoroethane

(R 142b) Cyclohexanone 108-94-1 496 1,2-Dichloroethane 107-06-2 732 Dichloromethane 75-09-2 730 1,2-Dichloropropane 78-87-5 734 1,3-Dichloro-1-propene 542-75-6 744 Diethyl ether 60-29-7 354 Dimethyl ether 115-10-6 352 Epichlorohydrin 106-89-8 820 Ethane 74-84-0 102 Ethanol 64-17-5 302 1-Ethoxypropan-2-ol 1569-02-4 392 Ethyl acetate 141-78-6 552 Ethylene 74-85-1 003 Ethylene oxide 75-21-8 822 n-Hexane 110-54-3 106 1-Hexene 592-41-61 156 Methane 74-82-8 001 Methanol 67-56-1 301 1-Methoxypropan-2-ol 107-98-2 391 2-Methoxy-1-methyl ethyl acetate 108-65-6 570

75-68-3 783

Substance CAS No. Gas Code

Methyl acrylate 96-33-3 581 Methyl tert-butyl ether 1634-04-4 355 Methyl isobutyl ketone 108-10-1 476 Methyl chloride 74-87-3 701 Ethyl methyl ketone 78-93-3 454 n-Nonane 111-84-2 109 n-Octane 111-65-9 108 n-Pentane 109-66-0 105 1-Pentene 109-67-1 155 Propane 74-98-6 002 Isopropanol 67-63-0 313 Propylene 115-07-1 153 Propylene oxide 75-56-9 823 Styrene 100-42-5 270 Toluene 108-88-3 261 o-Xylol (1,2-Dimethyl benzene) 95-47-6 265 The current gas library can be viewed at www.draeger.com.

30 Dräger Polytron 8700/8720

12.2 Polytron 8700 Type 340

Substances in the gas library (PIR 7000)

Substance CAS No. Gas Code

Acetaldehyde 75-7-0 402 Acetone 67-64-1 453 Allyl chloride 107-05-1 723 n-Butane 106-97-8 104 i-Butane 75-28-5 114 1-Butene 106-98-9 154 i-Butene 115-11-7 164 2-Butoxyethanol (n-Butyl glycol) 111-76-2 384 n-Butyl acetate 123-86-4 554 n-Butyl acrylate 141-32-2 584 Cyclohexane 110-82-7 186 Cyclohexanone 108-94-1 496 1,2-Dichloroethane 107-06-2 732 Dichloromethane 75-09-2 730 1,2-Dichloropropane 78-87-5 734 1,3-Dichloro-1-propene 542-75-6 744 Diethyl ether 60-29-7 354 Dimethyl ether 115-10-6 352 Epichlorohydrin 106-89-8 820 Ethane 74-84-0 102 Ethanol 64-17-5 302 1-Ethoxypropan-2-ol 1569-02-4 392 Ethyl acetate 141-78-6 552 Ethylene oxide 75-21-8 822 n-Hexane 110-54-3 106 1-Hexene 592-41-61 156 Methane 74-82-8 001 Methanol 67-56-1 301 1-Methoxypropan-2-ol 107-98-2 391 2-Methoxy-1-methyl ethyl acetate 108-65-6 570 Methyl acrylate 96-33-3 581 Methyl tert-butyl ether 1634-04-4 355 Methyl isobutyl ketone 108-10-1 476 Methyl chloride 74-87-3 701 Ethyl methyl ketone 78-93-3 454 n-Nonane 111-84-2 109 n-Octane 111-65-9 108 n-Pentane 109-66-0 105 1-Pentene 109-67-1 155 Propane 74-98-6 002

Substance CAS No. Gas Code

Isopropanol 67-63-0 313 Propylene 115-07-1 153 Propylene oxide 75-56-9 823 Toluene 108-88-3 261 o-Xylol (1,2-Dimethyl benzene) 95-47-6 265 The current gas library can be viewed at www.draeger.com.

Dräger Polytron 8700/8720 31

Technical data

13 Technical data

CAUTION

Specifications and restrictions in the Instructions for Use and/or data sheets for the sensors used must be observed. For SIL applications the Dräger Polytron 8X00 Safety Manual must be observed.

The measuring range and performance characteristics are dependent on the sensor installed, see the Instructions for Use and/or data sheets for the sensors used.

Signal transmission to the central controller

Analog

Output current 4 mA to 20 mA Drift below zero-point 3.8 mA to 4 mA Measuring range exceeded 20 mA to 20.5 mA Device malfunction ≤1.2 mA Fault on analog output >21 mA Maintenance signal 3.4 mA constant signal or 1 Hz modulation between 3 and 5 mA

Supply voltage

Operating voltage 3-wire shielded cable, 24 V DC (10 to 30) V DC Inrush current 2.3 A for 2 ms at 24 V DC, 10 Ω conductor resistance

(selectable)

Operating current (max.) 330 mA at 24 V DC, no relay, sensor not remote

350 mA at 24 V DC, with relay, remote sensor

Relay design (optional) SPDT, 5 A at 230 V AC, 5 A at 30 V DC, resistive load

For safety-related applications (SIL2), the maximum contact rating is reduced (see also the Dräger Polytron 8X00 Safety Manual).

Housing NEMA 4X

Protection Class IP 65/66/67

Dimensions (LxWxD)

Without e-Box approx. 150 x 290 x 130 mm (5.9" x 11.4" x 5.1") With e-Box approx. 180 x 300 x 190 mm (7.1" x 11.8" x 7.4")

Mounting spacer (diameter x D) 150 x 25 mm (5.9” x 1”)

Weight

Without e-Box, aluminum approx. 3.9 kg (8.5 lbs.) Without e-Box, stainless steel 316 approx. 5.7 kg (12.6 lbs.) With e-Box, aluminum approx. 5.2 kg (11.5 lbs.) With e-Box, stainless steel 316 approx. 7.1 kg (15.6 lbs.)

Display Resolution 128 x 64, back-lit

Environmental conditions Specifications for the sensor: see sensor data sheet

Pressure 700 to 1300 hPa (20.7 to 38.4 in. Hg) Humidity 0 to 100 % R. H., non-condensing Temperature

without relay with relay

-40 to +77 °C (-40 to +170 °F)

-40 to +70 °C (-40 to +158 °F)

Environmental influences See respective sensor data sheets.

32 Dräger Polytron 8700/8720

Technical data

13.1 Torques

(The torques are valid for the aluminum and stainless steel 316 variants)

Part Torque Lb. In. Torque Nm

Housing cover min. 266 min. 30

Sensors min. 266 min. 30

Blanking plugs min. 266 min. 30

Cable entry min. 443 min. 50

Device to e-Box 71 8

13.2 Tightening torque and cable size for field wiring terminals

Electronic

Torque Lb. In. Cable size in AWG Cable size in mm

All field wiring

terminals

4.4–7.0

(0.5–0.8 Nm)

If an optional e-Box is being used, fasten the device securely to the e-Box with 4 screws and a tightening torque of 8 Nm.

20–12 0.5–2.5

13.3 Factory settings

13.3.1 Unalterable settings

Fault Meaning

Fault relay / wired in e-Box

Yellow Fault LED Lights when a fault is present

Red Alarm LED Gives single flashes when an A1 alarm

energized / NO

(see chapter 9 on page 27).

is present. Gives double flashes when an A2 alarm is present. If an alarm is configured as acknowledgeable and the alarm is acknowledged, the LED lights. Alarm hierarchy: A2 has a higher priority for the LED than A1. However the A1 and A2 relays operate independently of one another, i.e. if A1 is acknowledgeable and A2 is not and the gas concentration is so high that A1 and A2 are triggered, an acknowledgement results in the A1 relay dropping out. However the red LED continues to give double flashes as long as the A2 condition exists.

13.3.2 Alterable settings for the Polytron 8700

Standard setting

Menu Polytron

8700 Type

334

Calibration

gas type

Calibration

gas units

Calibration gas

concentration

A1 Alarm 20 %LEL 20 %LEL 1 vol.% A2 Alarm 40 %LEL 40 %LEL 2 vol.%

A1 Relay alarm:

Direction

A2 Relay Alarm:

Direction A1 latching mode Non-latching Non-latching Non-latching A2 latching mode Latching Latching Latching A1 Acknowledge-

ment mode

A2 Acknowledge-

ment mode

A1 enrg / wired in

e-Box

A2 enrg / wired in

e-Box

LEL type NIOSH NIOSH ----

Measured gas Methane Propane CO

Measured

gas units

FSD Set 100 100 5

Password 0000 0000 0000

PIR Lock Off Off Off

SIL password _ _ _2 _ _ _2 _ _ _2

SIL status Off Off Off Language English English English

Fault current 1.2 mA 1.2 mA 1.2 mA

Warning current 3.0 mA 3.0 mA 3.0 mA

Maintenance

current

Beam block Off Off Off

HART address 0 0 0

Auto-cal. Off Off Off

Calibration

interval

Response Normal Normal Normal

Function key Faults Faults Faults

Methane Propane CO

vol.% vol.% vol.%

2.5 0.75 4.0

Rising Rising Rising

Acknowledgeable

Not acknowl-

edgeable

Energized / NOEnergized / NOEnergized /

%UEG %LEL vol.%

3.4 mA 3.4 mA 3.4 mA

360 360 360

Polytron

8700 Type

340

Acknowledgeable

Not acknowl-

edgeable

Polytron

8720

Acknowledgeable

Not acknowl-

edgeable

Dräger Polytron 8700/8720 33

Order list

14 Order list

14.1 Dräger Polytron 8700 Type 334

Name and description

Dräger Polytron 8700 334 d A 4-20/HART 45 44 601 Dräger Polytron 8700 334 d A 4-20/HART Relay 45 44 602 Dräger Polytron 8700 334 d S 4-20/HART 45 44 610 Dräger Polytron 8700 334 d S 4-20/HART Relay 45 44 611 Dräger Polytron 8700 334 e A 4-20/HART 45 44 619 Dräger Polytron 8700 334 e A 4-20/HART Relay 45 44 620 Dräger Polytron 8700 334 e S 4-20/HART 45 44 628 Dräger Polytron 8700 334 e S 4-20/HART Relay 45 44 629 Dräger Polytron 8700 Remote 334 e A 4-20/HART 45 44 673 Dräger Polytron 8700 Remote 334 e A 4-20/

HART Relay Dräger Polytron 8700 Remote 334 e S 4-20/HART 45 44 682 Dräger Polytron 8700 Remote 334 e S 4-20/

HART Relay

Order

Number

45 44 674

45 44 683

14.2 Dräger Polytron 8700 Type 340

Name and description

Dräger Polytron 8700 340 d A 4-20/HART 45 44 637 Dräger Polytron 8700 340 d A 4-20/HART Relay 45 44 638 Dräger Polytron 8700 340 d S 4-20/HART 45 44 646 Dräger Polytron 8700 340 d S 4-20/HART Relay 45 44 647 Dräger Polytron 8700 340 e A 4-20/HART 45 44 655 Dräger Polytron 8700 340 e A 4-20/HART Relay 45 44 656 Dräger Polytron 8700 340 e S 4-20/HART 45 44 664 Dräger Polytron 8700 340 e S 4-20/HART Relay 45 44 665 Dräger Polytron 8700 Remote 340 e A 4-20/HART 45 44 691 Dräger Polytron 8700 Remote 340 e A 4-20/

HART Relay Dräger Polytron 8700 Remote 340 e S 4-20/HART 45 44 700 Dräger Polytron 8700 Remote 340 e S 4-20/

HART Relay

Order

Number

45 44 692

45 44 701

14.3 Dräger Polytron 8720

Name and description

Dräger Polytron 8720 d A 4-20/HART 45 44 709 Dräger Polytron 8720 d A 4-20/HART Relay 45 44 710 Dräger Polytron 8720 d S 4-20/HART 45 44 718 Dräger Polytron 8720 d S 4-20/HART Relay 45 44 719 Dräger Polytron 8720 e A 4-20/HART 45 44 727 Dräger Polytron 8720 e A 4-20/HART Relay 45 44 728 Dräger Polytron 8720 e S 4-20/HART 45 44 736 Dräger Polytron 8720 e S 4-20/HART Relay 45 44 737 Dräger Polytron 8720 Re e A 4-20/HART 45 44 745 Dräger Polytron 8720 Re e A 4-20/HART Relay 45 44 746 Dräger Polytron 8720 Re e S 4-20/HART 45 44 754 Dräger Polytron 8720 Re e S 4-20/

HART Relay

Order

Number

45 44 755

14.4 Sensors for remote versions

NOTICE

The sensors are not included with the remote versions.

Name and description

For Polytron 8700 Type 334 Re e:

Dräger PIR 7000 Type 334 (M25) cpl. set Connection thread M25 x 1.5

For Polytron 8700 Type 340 Re e:

Dräger PIR 7000 Type Connection thread M25 x 1.5

For Polytron 8720 Type 340 Re e:

Dräger PIR 7200 (M25) HART® cpl. set Connection thread M25 x 1.5

HART

interface

1 The complete set contains an Ex e junction box, a splash guard,

a status indicator and a mounting kit, already pre-assembled.

340

(M25)

Order

Number

68 11 825

68 11 819

68 12 290

34 Dräger Polytron 8700/8720

Order list

14.5 Replacement sensors (except for remote versions)

Name and description

Dräger PIR 7000 Type 334 (NPT) Connection thread 3/4" NPT

Dräger PIR 7000 Type Connection thread 3/4" NPT

Dräger PIR 7200 (NPT) HART Connection thread 3/4" NPT / HART

340

(NPT)

interface

Order

Number

68 11 822

68 11 832

68 11 572

14.6 Accessories for Polytron 8700/8720

Name and description

D-Junction Box, aluminum 45 44 099 D-Junction Box, stainless steel 316 45 44 098 Duct mounting kit (PIR 7000) Polytron 5000/

8000 Pipe mounting kit, Polytron 5000/8000 45 44 198 IR connection kit, 5000/8000 45 44 197 Magnetic wand with key chain 45 44 101

Order

Number

68 12 300

14.7 Replacement parts

Description

Bucket Polytron 87X0 4-20/HART, SPPT 45 44 795 Bucket Polytron 87X0 4-20/HART Relay,

SPPT Cable bushing, 3-pin 45 44 182 Cable bushing, 9-pin 45 44 169 Cable bushing, 14-pin 45 44 168 Hardware set, housing 45 44 167 Hardware set, e-Box 68 12 838 Cable gland, e-Box 68 12 868

Order Number

45 44 796

14.6.1 Accessories for PIR 7000/7200

Name and description

Status indicator PIR 7000 68 11 625 Splash guard PIR 7000 68 11 911 Flow cell PIR 7000 68 11 490 Remote test adapter PIR 7000 68 11 630 Status indicator PIR 7200 68 11 920 Mounting kit PIR 7000 68 11 648 Splash guard PIR 7200 68 11 912 Flow cell PIR 7200 68 11 910 Remote test adapter PIR 7200 68 11 930 Insect guard PIR 7000 68 11 609 Hydrophobic filter PIR 7000 68 11 890 Calibration adapter PIR 7000 68 11 610 Flow cell PIR 7000 Duct 68 11 945 Remote test adapter PIR 7000 Duct 68 11 990 Process adapter PIR 7000 68 11 915 Process cuvette PIR 7000 68 11 415 Junction box Ex e PIR 7000 (EAC 0000) 68 11 898

Order

Number

Dräger Polytron 8700/8720 35

Declaration of Conformity

15 Declaration of Conformity

36 Dräger Polytron 8700/8720

www.norrscope.com

Declaration of Conformity

Dräger Polytron 8700/8720 37

Drager Polytron 8700, Polytron 8720 Instructions For Use Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1 For your safety

1.1 General safety statements

1.2 Definitions of alert icons

2 Description

2.1 Product overview

2.1.1 Explosion proof device

2.1.2 Explosion proof device with increased safe wiring compartment (e-Box)

2.2 Functional description

2.3 Intended use

2.4 Intended area and conditions of use

2.5 Approvals

2.3.1 Dräger Polytron 8700 with PIR 7000 infrared gas sensor Types 334 and 340

2.6 Device marking

3 Installation

3.1 General information for the installation

3.2 Restrictions on the installation

3.3 Impedance range of the signal loop

3.5 Electrical installation without e-Box

3.4 Mechanical installation

3.5.1 Power and signal cables

3.5.3 Remote sensor

3.5.2 Version with relays

3.6 Electrical installation with e-Box

3.7 Connecting the device to a Dräger control unit

3.10 Installing software dongles

3.8 Connecting the device to a PC

3.9 PolySoft 8000 PC software (optional)

4 Operation

4.1 Operating fundamentals

4.1.1 Menu navigation

4.1.2 Changing parameter values or the parameter status

4.1.3 Exiting menus

4.2 Display and LEDs

4.2.1 Special symbols

4.2.2 LED symbols

4.3 Activating the Info mode

4.4 Switching to the Quick Menu mode

4.5 Switching to Menu mode (password protected)

4.6.1 Analog signals

4.6 Measurement mode

5 Calibration

5.1 Calibrating the device

5.1.1 Zero point calibration

5.1.2 Span calibration

5.2 Performing Auto Calibration

6 Menu overview

7 Information menu

7.1 Device settings

7.1.1 Displaying warning messages

7.1.2 displaying fault messages

7.1.3 Displaying device codes

7.2 Sensor information

7.2.1 Display last calibration date

7.2.2 Display next calibration date

7.3.1 Displaying the datalogger status

7.3.2 Displaying a graph of measured values

7.1.4 Displaying installed modules

8 Settings menu

8.1 Switching SIL lock on or off

8.2 Device settings

8.2.1 Alarm settings (only with installed relay module)

8.2.2 Changing passwords

8.2.3 Setting the date and time

8.2.4 Changing the display language

8.2.5 Configuring the function key

8.2.6 Resetting the device to factory settings

8.2.7 Deactivating the software dongle

8.2.8 Display settings

8.3 Communication settings

8.3.1 Settings for the HART interface (only for devices with the optional HART interface)

8.3.2 Settings for the analog interface

8.3.3 Profibus address

8.4 Sensor settings

8.4.1 Switching Auto CAL on or off

8.4.2 Sensor testsettings

8.4.6 Changing the gas settings