Dräger PIR 3000 Instructions For Use Manual

Dräger PIR 3000

Infrared Gas Transmitter Instructions for Use

00123812_02.eps

Contents

For Your Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Intended Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Explosion-Protection Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Installing the Gas Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Mounting Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Mechanical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

When used according to BVS 05 ATEX E 143 X, please note: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Terminal box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Splash Guard and Calibration Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Gas Exposure / Process Adapter (see "Accessories/Spare parts" on page 27) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Dirt Deflector (see "Accessories/Spare parts" on page 27) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Electrical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

When used according to BVS 05 ATEX E 143 X, please note: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Operational Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Configuration of the Gas Transmitter via Magnetic Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Automatic Zerosetting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Manual Zero Calibration of the Output Signal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Manual Span Calibration of the Output Signal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Substitute Gas Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Checking the Signal Transmission, Checking the Alarm Trigger and Displaying the Gas Category . . . . . . . . . . . . . . . . . 17

Changing the gas category . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Faults, Cause and Remedy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

General Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Measuring Technique Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Cross Sensitivities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Description of Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Order List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Dräger PIR 3000 infrared gas transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Accessories/Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

ATEX - Approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

IECEx - Approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

UL - Approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

CSA - Approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Declaration of Conformity

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

For Your Safety

Strictly follow these Instructions for Use

Any use of this gas transmitter requires full understanding of the information provided and strict adherence to the instructions given. The gas transmitter is only to be used for the purposes specified here.

Maintenance

Maintenance jobs may only be carried out by trained service personnel. We recommend signing a service contract to have all maintenance jobs carried out by Dräger. Always use original Dräger parts for maintenance. Be sure to read the information provided in the chapter "Maintenance".

Accessories

Only use accessories mentioned in the order list.

Safe Connection of Electrical Devices

Never connect this device to other electrical devices not mentioned in these Instructions for Use before consulting the manufacturer or an expert.

Use in Potentially Explosive Atmospheres

Devices or components used in potentially explosive atmospheres after being tested and approved according to national, European or international regulations may only be used under the conditions specified in the approval and under observation of relevant legal regulations. Never modify the electrical equipment. Never use defective or incomplete parts. Always take relevant regulations into account when repairing devices or components.

Safety symbols used in these Instructions for Use

These Instructions for Use contain a number of warnings for risks and hazards which might occur when using the instrument. These warnings contain signal words which will alert you to the degree of hazard you may encounter. These signal words and corresponding hazards are as follows:

WARNING

Explosion hazard! Do not open sensor housing. There is a risk of ignition in explosive atmospheres. The sensor housing contains live parts. Unauthorised opening can lead to a safety-related failure of the sensor. The sensor does not contain any parts that can be serviced by the user.

WARNING

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION

Indicates a potentially hazardous situation which, if not avoided, could result in physical injury, or damage to the product or environment. It may also be used to alert against unsafe practices.

NOTICE

Indicates additional information on how to use the product.

Intended Use

The Dräger PIR 3000 infrared gas transmitter is a device used for stationary, continuous monitoring of the concentration of carburetted, combustible gases and vapours in the ambient air. The gas transmitter is preconfigured for the gases methane, propane and ethylene. The operating range respectively covers 0 to 100 %LEL (Lower Explosion Limit). An analogue, 4 to 20 mA output signal is used as measuring value output. The Dräger PIR 3000 infrared gas transmitter is designed for use in rough ambient conditions and is suited for installation in hazardous areas of zones 1, 2, 21 and 22 according to the device categories 2G, 3G, 2D, 3D or Class I & II, Div. 1 for hazardous areas. For further information, please observe the installation instructions.

In connection with a central device (e.g. Dräger REGARD channel card

4...20 mA):

— warning before explosive concentration level is reached — automatic initiation of countermeasures which avert the explosion hazard (e.g.

switching on a ventilation)

— device error warning

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Explosion-Protection Approvals

The explosion-protection approvals are valid for use of the device in gas/vapour-air mixtures of combustible gases and vapours under atmospheric conditions. The explosion-protection approvals are not valid for use in oxygen-enriched atmospheres. Unauthorised opening of the enclosure invalidates the explosion-protection approval.

The appendix has a copy of the ATEX certificate, which offers relevant information on safety regulations under subjects such as "Subject matter and type", "Description", "Characteristic quantity" and "Terms/conditions of safe use".

—ATEX Type IDS 0001

II 2G Ex db IIC T6 Gb II 2D Ex tb IIIC T80°C Db IP6X

–40 °C ≤ Ta ≤ +65 °C

Type ITR 001X

II 2G Ex db IIC T6 Gb II 2D Ex tb IIIC T80°C Db IP6X

–40 °C ≤ Ta ≤ +60 °C

Types IDS 0011 and ITR 000X:

II 2G Ex db eb IIC T6 Gb II 2D Ex tb IIIC T80°C Db IP6X

–40 °C ≤ Ta ≤ +65 °C year of construction (by serial number)

BVS 05 ATEX E 143X

1) The year of manufacture is indicated by the third letter of the serial number on the type plate: X = 2006, Y = 2007, Z = 2008, A = 2009, B = 2010, C = 2011, D = 2012, etc. example: serial number ARXH-0054, the third letter is U, so the year of manufacture is 2006.

— IECEx Type IDS 0001:

Ex db IIC T6, Ex tb IIIC T80°C Db IP6X –40

C ≤ Ta ≤ +65 oC

Type ITR 001X

Ex db IIC T6 Gb, Ex tb IIIC T80°C Db IP6X –40 °C ≤ Ta ≤ +60 °C

Types IDS 0011 and ITR 000X:

Ex db eb IIC T6, Ex tb IIIC T80°C Db IP6X –40 °C ≤ Ta ≤ +65 °C

BVS 05.0011X

—UL

(Underwriters Laboratories Inc.)

Type IDS 0001:

Class I, Div. 1, Groups A, B, C, D Class II, Div. 1, Groups E, F, G

—CSA Type IDS 0001:

Class I, Div. 1, Groups A, B, C, D C22.2, No. 152

0158

LR97594

Installing the Gas Transmitter

Only trained service personnel (e.g. of Dräger) may install the gas transmitter under observation of relevant regulations. Installation and commissioning are described in the "Dräger PIR 3000 Installation Instructions" which are supplied with the gas transmitter.

Mounting Location

The protecting effect of the gas transmitter depends on the selection of the mounting location. By taking the site's air flow conditions into account, the best possible mounting location should be chosen as close as possible to where a decisively noticeable rise in gas concentration can be expected in case of a leakage, i. e. — as close as possible to the potential leakage place

— when monitoring gases and vapours which are lighter than air:

above the potential leakage place

— when monitoring gases and vapours which are heavier than air:

near to ground.

In addition, it must be assured that: — the air circulation in the gas transmitter vicinity is not hindered — the danger of mechanical damage is reduced as far as possible

— the gas transmitter is sufficiently accessible for maintenance purposes.

Especially the configuration via magnetic pin requires a clearance of approx. 20 cm around at least half of the sensor perimeter.

The gas transmitter can be mounted horizontally as well as vertically.

Mechanical Installation

When used according to BVS 05 ATEX E 143 X, please note:

 The gas sensor type IDS 0001 (NPT) can be attached to casings with the type

of protection flameproof enclosure "d" that have a free volume of 2 litres and a reference pressure that does not exceed 20 bar. The mechanical strength of the attachment and the explosion and construction-related testing of the connection thread must be carried out within the framework of the approval process of the electrical equipment to which the sensor is attached.

 The gas sensor type IDS 0011 (metric thread) is designed for attachment on a

casing with the type of protection increased safety "e". The mechanical strength and the degree of protection IP 6X of the attachment must be ensured during approval of the electrical equipment to which it is attached.

 The junction boxes of the gas sensors IDS 00** must feature sufficient

mechanical stability to ensure that the vibrations transmitted to the sensor by the casing are not amplified.

Terminal box

The gas transmitter is designed to be directly attached to a terminal box. Approved connector boxes of the following makes are available as gas transmitter accessories: Ex d (explosion proof, 3/4" NPT) and Ex e (increased safety, M25) (see "Order List" on page 27).  To maintain the housing protection class, the enclosed O-ring seal must be used

for an Ex e-type explosion protection connection. Use a thread locking adhesive, e.g. Loctite

to prevent the M25 nut (torque of

15 Nm ±3 Nm) from self-loosening.

 Use approved plugs to close any unused cable entry openings at the terminal

box.

Splash Guard and Calibration Adapter

We recommend using the supplied accessories - splash guard (1) and calibration adapter (2) - to increase protection against water jets and contamination.

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(1)

(2)

Installing the Gas Transmitter

The splash guard is held by a fixture provided with screw-thread, which is also used as calibration adapter. Make sure that the calibration adapter is correctly seated. To this end, manually tighten the calibration adapter to a point where the sealing line leaves a permanent mark on the splash guard.

Gas Exposure / Process Adapter (see "Accessories/Spare parts" on page 27) For continuous flow operation of the gas transmitter, the calibration adapter can be

replaced with an optional gas exposure / process adapter. — Suitable for flow rates between 1 and 3 L/min.

— Within the specified technical measurement characteristics suitable for pressure

differences relative to ambient pressure of up to ±300 hPa.

— Use external pump to ensure gas flow. — External flow monitoring required. — Also suitable for calibration gas application.

Assembly:

 Unscrew the calibration adapter from the gas transmitter. While doing so, leave

splash guard on the gas transmitter.

 Screw gas exposure / process adapter onto the gas transmitter and tighten firmly

by hand.

 In the case of pipelines and hose lines carrying gas ensure that there is stability

with regard to ambient conditions and material compatibility for the substances flowing through them.

 With regard to the length of the pipelines or hose lines observe the increase in

the response time.

 Ensure the compatibility of the connection spouts to be used regarding the

pipeline and hose line dimensions.

 Check the gas-carrying system for leaks, e.g. with a soap bubble test.

Dirt Deflector (see "Accessories/Spare parts" on page 27) Instead of the calibration adapter, a double-walled dirt deflector can optionally be

fitted to the gas transmitter. This is recommended if there is an increased risk of contamination from e.g. salt crusts, oil films, resin or similar substances, and also generally for outdoor applications. In addition to the dirt deflector, the use of a splash guard is strongly recommended.  Also suitable for calibration gas application.

Assembly:

— Unscrew the calibration adapter from the gas transmitter. While doing so, leave

splash guard on the gas transmitter.

— Manually tighten the dirt deflector on the gas transmitter to a point where the

sealing line leaves a permanent mark on the splash guard.

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Installing the Gas Transmitter

Electrical Installation

The entire wiring must correspond with applicable local regulations concerning the installation of electrical devices in potentially explosive atmospheres. In case of doubt, consult the responsible authorities before installing the device. We recommend a three-core, screened connection cable (mesh wire shield with a shielding factor of ≥80 %).

 The leads for the sensor are factory sealed.  If the corresponding connection is available:

Electrically connect the terminal box to earth.

 For installation in conduit: cast conduit seals and allow to harden.  When installing a complete set (see "Order List" on page 27):

depending on the housing type of the terminal box there are the following permissible conductor cross sections:

Connection Diagram:

Colour code of connecting terminals and/or leads at the gas transmitter:

NOTICE

If present: If the connector of the gas transmitter is not required, it must be removed prior to the electrical installation. To do so, cut the cables with a suitable tool directly in front of the connector, strip the insulation, and attach suitable ferrules.

NOTICE

Earth leakages on two phases can cause EMC problems. To avoid these problems, the cable screen may only be connected to earth potential on one side (either at the central unit or at the gas transmitter). In most cases, connecting the cable screen to the PE terminal of the terminal box has proven to work better than connecting it to the central device..

Order No. 68 11 160: 1.0 to 2.5 mm

Order No. 68 11 270: 0.5 to 4.0 mm

Order No. 68 11 180: 0.2 to 4.0 mm

1 = black = – (common reference potential) 2 = brown = signal output 4 to 20 mA 3 = red = + (10 to 30 V DC)

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red

brown

black

4 to20 mA

10 to 30 V DC

at gas transmitter

Installing the Gas Transmitter

— The leads between central device and gas transmitter must have a sufficiently

low resistance to ensure the correct supply voltage at the gas transmitter. The maximum resistance per core is calculated as follows:

Example: With UC = 24 V, the result is a maximum resistance per core of R = 35 Ω.

— The maximum resistance of the loop RI (sum of the internal resistance of the

central device and of the cable resistance of the signal line) depends on the transmitter supply voltage as described below:

When used according to BVS 05 ATEX E 143 X, please note:

 After attachment of the sensor to a casing with the type of protection increased

safety "e", the air gaps and creepage distances must comply with the requirements specified in 4.3 (Table 1) or 4.4 of EN 60079-7. The single core cables must be routed and connected in a way that is mechanically protected and complies with the temperature resistance of the wires as specified in 4.5,

4.7.2 and 4.8 of EN 60079-7.

 From an electrostatic point of view (transition resistance < 10

ohm) the sensor casing must be conductively connected to the equipotential bonding of the casing to which it is attached as soon at it is attached. If equipotential bonding is required, it must be provided with the attachment.

R = 2.5 x U

– 25

with R: maximum resistance per core

UC: voltage supplied by central device in volts (usually depends on the

supply voltage of the central device)

NOTICE

Cable resistance deviations caused by temperature influences, transition resistances of terminals, etc. can also contribute to the fact that the calculated cable length can not be fully used.

Supply voltage at

the transmitter

maximum resistance of

the loop R

10 V 200 Ω 12 V 300 Ω 14 V 390 Ω 16 V 480 Ω

Installing the Gas Transmitter

Commissioning

The Dräger PIR 3000 infrared gas transmitter is preconfigured and ready for use after installation.

 Deactivate the alarm call to the central device to avoid false alarms.  When the supply voltage is applied, the gas transmitter automatically performs

a self check (10 seconds), then automatically uses the factory-preset calibration (see page 11) and gas category. For the duration of the self test, a signal of 1 mA is issued.

 Wait for the running-in period of one minute to expire. No settings can be

changed at the gas transmitter during this period. The gas transmitter will emit a 1 mA signal for the duration of the running-in period.

 Check signal transmission and adjust if required (see "Checking the signal

transmission, checking the alarm trigger and displaying the gas category" on page 17).

 Check setting of the gas category for the intended use. If required, set the gas

category (see "Changing the gas category " on page 18).

 Check the calibration of the gas warning system (see "Calibration" on page 11).  Reactivate the alarm call to put the system back to normal operating state.

NOTICE

To prevent moisture condensation on the optic surfaces of the device, parts of the transmitter housing are heated from the inside. This can increase the surface temperature by approx. 5 oC.

Operational Characteristics

The gas transmitter generates an output signal which is proportional to the measured gas concentration. The factor of proportionality between displayed value and the measured gas concentration is determined by the span calibration of the gas transmitter (see "Manual Span Calibration of the Output Signal." on page 15).

The gas transmitter regularly runs self tests for numerous internal functions. As soon as a divergence from normal operation is detected, the device will issue a fault message.

Output Signals of the Device:

Calibration

A functional check and - if necessary - a calibration must be carried out regularly for gas warning systems (see page 20, Maintenance).

Zero gas and test gas are to be applied for functional check and calibration of the infrared gas transmitter Dräger PIR 3000. To this end, the gas is applied either with — the calibration adapter in connection with the splash guard (see page 5, part of

the scope of delivery) or

— the gas exposure / process adapter (see page 6 and order list) or — the dirt deflector in connection with the splash guard (see order list).

The required gas flow rate for functional check and calibration is as follows: — 0.5 to 1 L/min. for the calibration adapter with splash guard and the dirt deflector

with splash guard in closed rooms at wind speeds up to 5 m/s (3 Beaufort),

— 1 to 2 L/min. for the calibration adapter with splash guard and the dirt deflector

with splash guard at wind speeds up to 27 m/s (10 Beaufort),

— 0.5 to 3 L/min. for the gas exposure / process adapter.

Display of Output Signal

zero point 4 mA full scale deflection 20 mA under-range 3.8 mA to 4 mA over-range 20.0 mA to 20.5 mA span gas signal to indicate begin and

successful termination of gas transmitter calibration via magnetic pin

3 mA

Fault and inlet signal (during self check and running-in period)

1 mA

Warning (while increasing the Drift of the zero point into the negative range)

2 mA

Operational Characteristics

Make sure that the calibration adapter is correctly seated. To this end, manually tighten the calibration adapter to a point where the sealing line leaves a permanent mark on the splash guard.

Nitrogen, synthetic air or fresh air (hydrocarbon content <50 ppm) can be used for zero point calibration.

Commercially available calibration gas can be used to calibrate the respective gas category (methane, propane, ethylene). The highest accuracy is achieved using test gas concentrations of 40 to 70 percent of the measurement span.

The infrared gas transmitter Dräger PIR 3000 can also be used to measure other gases than mentioned above. For detailed information, refer to "Substitute Gas Calibration" on page 16.

 Select the measured gas in the corresponding table and determine the

corresponding gas category.

 Set the gas transmitter to the determined gas category.

Where possible, calibration gas should match with the measured gas for span calibration. In exceptional cases, span calibration can be carried out using a suitable substitute gas and the associated calibration factor. The suitable substitute gas as well as the associated calibration factor is shown in the table "Substitute Gas Calibration" on page 16.

 Select the substitute gas (gas category) and the calibration factor in table

"Substitute Gas Calibration" on page 16.

 Multiply the concentration of the substitute gas by the calibration factor to get the

gas concentration to be set.

Example:

Measured gas: n-octane Gas category: Propane (see table "Substitute Gas Calibration",

page 16) Calibration factor: 1.8 (in table "Substitute Gas Calibration", page 16) Span gas concentration: 40 %LEL propane (bottle concentration) Setting: 40 %LEL x 1.8 (calibration factor) = 72 %LEL

CAUTION

Never inhale test gas. Danger to health! Observe the safety information in the corresponding safety data sheets. Ensure that gases are vented or otherwise guided outside the building.

Operational Characteristics

Configuration of the Gas Transmitter via Magnetic Pin

A magnetic pin can be used to change the settings of the Dräger PIR 3000 infrared gas transmitter (see "Accessories/Spare parts" on page 27) as follows: — Automatic zerosetting. — Manual zero calibration of the output signal.

— Manual span calibration of the output signal.

— Checking the signal transmission, check the alarm trigger and displaying the gas

category.

— Changing the gas category.

Automatic Zerosetting

 Deactivate alarm activation of the central device.  Expose the gas transmitter to nitrogen, synthetic air, and/or fresh air via

calibration adapter and wait until measurement value stabilises.

 Place the magnetic pin onto the transmitter surface area marked by the " "

icon and hold it there (within the black frame) for at least five seconds. After five seconds, the output signal of the gas transmitter switches to the display of the span gas signal (3 mA) for as long as the magnetic pin is held against it. At the same time, a zerosetting of the optical measuring unit is carried out automatically.

 Remove the magnetic pin. After 30 seconds, the device exits the automatic

zerosetting routine. As confirmation of the automatic zerosetting, the output signal changes back to the span gas signal (3 mA). This signal is indicated for the same period of time as when starting the automatic zerosetting routine.

 Activate alarm activation of the central device.

1) A second person is required as helper for these tasks.

00823812_01.eps

Operational Characteristics

Manual Zero Calibration of the Output Signal.

 Deactivate alarm activation of the central device.

1 Expose the gas transmitter to nitrogen, synthetic air, and/or fresh air via calibra-

tion adapter and wait until measurement value stabilises.

2 Place the magnetic pin onto the transmitter surface area marked by the " "

3 Remove the magnetic pin. The output signal of the gas transmitter moves back

to the previously displayed value. The device is now set to zero point calibration routine. Within this routine, the output signal will decrease resp. increase, depending on whether the magnetic pin is placed on one of the areas marked with either the " " or the " " icon.

4 Adjust the zero point signal by placing the magnetic pin on one of the areas mar-

ked with either the " " or the " " icon.

5 Remove the magnetic pin. The device terminates the zero point calibration rou-

tine after 30 seconds without further settings being carried out. As confirmation of the successful calibration, the output signal changes back to the span gas signal (3 mA). This signal is indicated for the same period of time as when starting

the zerosetting calibration routine. 6 Terminate exposure to gas.  Reactivate alarm activation of the central device.

NOTICE

The calibration is automatically terminated and new calibration parameters are not saved if the gas concentration measured by the gas transmitter changes during the calibration procedure (e.g. because the calibration gas cylinder fell empty during the calibration procedure). In this case, the gas transmitter returns to normal operation without displaying the span gas signal as confirmation.

00823812_01.eps

00923974_02_en.eps

S0 0

time

display

–6.25 %LEL

(3 mA)

I (1) I (2) I

(3)

I (4) I (5) I (6)

Operational Characteristics

Manual Span Calibration of the Output Signal.

The span calibration of the gas transmitter is only possible under the following conditions: — The last zero calibration of the device was less than one hour ago.

— The span gas concentration is sufficiently high to effect a display on the device

of at least approx. 20 %LEL.

 Deactivate alarm activation of the central device. 1 Use calibration adapter to expose gas transmitter to test gas and wait until mea-

surement value stabilises.

2 Place the magnetic pin onto the transmitter surface area marked by the " "

icon and hold it there (within the black frame) for at least 5 seconds. The output signal of the gas transmitter changes to the display of the span gas signal (3 mA).

3 Remove the magnetic pin. The output signal of the gas transmitter moves back

to the normally displayed value. The device is now set to span calibration routine. While in this routine, the display will decrease resp. increase, depending on whether the magnetic pin is placed on either of the areas marked by the " " or " " icons.

4 Adjust the output signal by placing the magnetic pin on one of the areas marked

by the " " or " " icons.

5 Remove the magnetic pin. The device terminates the span calibration routine af-

ter 30 seconds without further changes being made and saves the new calibration parameter. The output signal momentarily switches back to the span gas

signal display to confirm a successful calibration. 6 Stop the exposure to gas, then wait for the display to fall back to zero.  Reactivate alarm activation of the central device.

NOTICE

00623812_01.eps

01023974_02_en.eps

S 0

time

display

–6.25 %LEL

(3 mA)

test gas concentration

(1)

I (2) I (3) I (4) I (5) I (6)

Operational Characteristics

Substitute Gas Calibration

The infrared gas transmitter Dräger PIR 3000 can also be used to measure other gases and vapours. The following table shows the required information (see also "Calibration" on page 11).

Measured gas

1) The measuring function for the explosion protection according to EN 60079-29-1 is proven, see EC-Type Examination certificate BVS 05 ATEX E 143X and associated additions.

CAS-No. Measuring range

[%LEL]

Gas Category

Substitute Gas

Calibration

factor

2) 3)

2) The LEL values were used according to IEC 60079-20-1. Other LEL values may apply for the device settings at the location of use.

3) Typical tolerance: ±5 %.

Response time

0...50

acetone 67-64-1 0 to 100 ethylene 0.7 ≤ 24 s i-butane 75-28-5 0 to 100 propane 1.6 ≤ 21 s n-butane 106-97-8 0 to 100 propane 1.2 ≤ 23 s ethanol 64-17-5 0 to 100

4) When the following substances are measured at concentrations above 70 % LEL, the deviations of the measured values exceed the permitted deviations in accordance with EN 60079-29-1.

propane 0.9 ≤ 21 s ethyl acetate 141-78-6 0 to 100 ethylene 0.4 ≤ 35 s ethyl acetate 141-78-6 0 to 100

propane 1.4 ≤ 35 s n-hexane 110-54-3 0 to 100 propane 1.8 ≤ 32 s methanol 67-56-1 0 to 100

ethylene 0.2 ≤ 21 s n-nonane 111-84-2 0 to 100 propane 1.9 ≤ 89 s n-Octane 111-65-9 0 to 100 propane 1.8 ≤ 67 s n-pentane 109-66-0 0 to 100 propane 1.5 ≤ 28 s i-propyl alcohol 67-63-0 0 to 100 propane 1.3 ≤ 24 s propene (propylene) 115-07-1 0 to 100 ethylene 0.4 ≤ 19 s toluene 108-88-3 0 to 100 ethylene 0.6 ≤ 49 s

___________

Operational Characteristics

Checking the Signal Transmission, Checking the Alarm Trigger and Displaying the Gas Category

The gas transmitter can create an output signal of 80 % of the full scale value, even without exposure to test gas. This 80% signal can be used to — check the signal transmission of the central device,

— match central device and sensor signal, — check the alarm triggering of the gas warning system. After issuing the 80% signal, the gas category set at the gas transmitter is displayed before the gas transmitter returns to normal operation.

 De-energising the alarm activation of the central device (not during alarm

testing).

 Expose the gas transmitter to nitrogen, synthetic air, and/or fresh air via

calibration adapter and wait until measurement value stabilises.

 Place the magnetic pin onto the transmitter surface area marked by the " "

icon and hold it there (within the black frame) for at least 5 seconds. After five seconds, the output signal of the gas transmitter changes to 3 mA (span gas signal) and remains there for as long as the magnetic pin is held against it. At the same time, a zerosetting of the optical measuring unit is carried out automatically.

 Remove the magnetic pin. After 30 seconds, the device exits the automatic

 Check the display of the central device: set point 0 %LEL.  If required, manually set the zero point at the gas transmitter to a display of

0 %LEL.

 Place the magnetic pin onto the transmitter surface area marked by the " "

icon (within the black frame) and hold it there. After ten seconds, the output signal of the gas transmitter changes to 16.8 mA (80% signal) and remains there for as long as the magnetic pin is held against it.

 Check the display of the central device: set point 80 %LEL.  If required, adjust the span at the central device until the central device displays

80 %LEL. While doing so, observe the information in the operating manual of the central device pertaining to this subject.

 Remove the magnetic pin. The gas transmitter changes to an output signal

which displays the currently set gas category according to the following table:

Gas category mA Display [%LEL]

methane 7.2 20 propane 10.4 40 ethylene 13.6 60

00823812_01.eps

00623812_01.eps

Operational Characteristics

— This signal is maintained for 30 seconds. The gas transmitter will then switch

back to normal operation. — The central device display now matches the output signal of the gas transmitter.  Reactivate alarm activation of the central device.

Changing the gas category

The gas transmitter supports the linearized and temperature compensated display of a wide spectrum of gases and vapours. Depending on the measured gas, you can select one of the three gas categories "methane", "propane" or "ethylene" stored in the software. A table which allocates a row of checked gases and vapours is available in the table "Substitute Gas Calibration" on page 16.

Changing the gas category is only possible under the following conditions: — The device was less was started up less than an hour ago.

— The last zero calibration of the gas transmitter was less than an hour ago. — The gas concentration measured by the device is below 10 %LEL (expose to

zero gas if necessary).

To change the gas category of commissioned gas transmitters, interrupt the power supply for a short period of time, wait for the running-in period of one minute to expire, and then carry out an automatic zero calibration (see "Automatic Zero Calibration" on page 13).

Then:

 Deactivate alarm activation of the central device.  Place the magnetic pin onto the transmitter surface area marked by the " "

icon (within the black frame) and hold it there.

After ten seconds, the output signal of the gas transmitter changes to 16.8 mA

(80% signal) and remains there for as long as the magnetic pin is held against it.

NOTICE

Using the 80% signal to match central device and transmitter signal without test gas is no replacement for the span calibration of the gas warning system.

00623812_01.eps

Operational Characteristics

 Remove the magnetic pin. The gas transmitter changes to an output signal

which displays the currently set gas category according to the following table:

This signal is maintained for 30 seconds. Within this period of time, the magnetic pin can be placed upon the area marked by the " " icon to select the next gas listed in the table. In the process, the output signal of the gas transmitter changes to the value which corresponds with the newly selected value which corresponds with the gas category.

The gas transmitter returns to normal operation if no further entry with the magnetic pin is performed for 30 seconds.

 Check span calibration (see page 15).  Reactivate alarm activation of the central device.

Gas category mA Display [%LEL]

methane 7.2 20 propane 10.4 40 ethylene 13.6 60

Maintenance

Regular intervals

are to be determined for the following tasks by the persons responsible for the gas warning system while taking local regulations into account:  Visual inspection to look for damage and contamination. Special attention is required for gas entrance to the gas transmitter.

Anything that blocks the gas entrance to the transmitter, e.g. dirt, ice, precipitation, etc., can prolong the response times or

even completely disable the gas transmitter. Recommended inspection interval: 3 months.  Visual inspection of the splash guard. If required, dismount gas exposure / process adapter and/or dirt deflector. Clean or

replace damaged splash guard.

 Visual inspection of gas exposure / process adapter. Clean or replace damaged gas exposure / process adapter.  Visual inspection of the dirt deflector. Clean or replace damaged dirt deflector.  Check signal transmission and adjust if required (see "Checking the signal transmission, checking the alarm trigger and

displaying the gas category" on page 17).  Check the calibration of the gas warning system (see "Calibration" on page 11). Recommended calibration interval:

6 months.  Observe standard DIN EN 60079-29-2 (provided binding).

Extending the maintenance intervals is possible if local conditions are taken into account, and if the recommended maintenance intervals require cleaning, maintenance or setup work. However, we do not recommend maintenance intervals that are longer than 12 months.

Yea rly

Inspection by competent personnel. The inspection intervals are to be individually determined with regard to safety regulations, process control conditions and device-related requirements. We strongly recommend that a service contract be signed with Dräger to have them handle repairs and maintenance.

+ 44 hidden pages

Dräger PIR 3000 Instructions For Use Manual

Specifications and Main Features

Frequently Asked Questions

User Manual