GASSONIC SURVEYOR User Manual

uSeR Guide FoR

GaSSonic SuRVeYoR ulTRaSonic GaS leaK deTecToR

conTenTS

1.0 The Gassonic Surveyor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

1.1 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

1.2 Working principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

1.3 Main features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

2.0 Background noise mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

2.1 Noise levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

3.0 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

4.0 Mechanical construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

4.1 Mechanical operation and safety . . . . . . . . . . . . . . . . . . . . . . . . . .7

4.2 Spare parts and accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

4.3 Mechanical operation and safety . . . . . . . . . . . . . . . . . . . . . . . . . .7

5.0 Alarm delay and trigger level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

5.1 Output methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

5.2 Using the 4 - 20 mA output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

5.3 Alarm relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

5.4 Error relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

5.5 NAMUR or dry contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

6.0 Test and calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

7.0 Gain test procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

8.0 Delay test procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

9.0 Calibration procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

10.0 Step test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

11.0 Gassonic Surveyor LED interface . . . . . . . . . . . . . . . . . . . . . . . . . . .16

12.0 Trouble shooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

13.0 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

14.0 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

15.0 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

16.0 Suppliers declaration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

17.0 Warranty Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

18.0 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

Installation and User Guide for Gassonic Surveyor (BB6019-01) Page 2

1.0 -

The GaSSonic SuRVeYoR

The Gassonic Surveyor is an ultrasonic gas leak detector. It is designed to detect pressurized gas leaks by sensing the ultrasound generated by escaping pressurized gas. The detector is designed for use in harsh environments and extreme weather conditions, making it ideal for detecting leaks in complex pipeline systems both onshore and offshore.

Gassonic Surveyor is developed, marketed and serviced by Gassonic A/S. Gassonic A/S is part of the General Monitors family of companies. The Gassonic Surveyor and other selected Gassonic products are manufactured by General

Monitors, Ireland.

1.1 -

applicaTion

The Gassonic Surveyor is ideal for:

• High pressure gas facilities (methane, hydrogen etc.)

• Petrochemical processing plants

• Gas pipeline compressor stations

• Gas storage facilities

1.2 -

WoRKinG pRinciple

When gas leaks from a pressurized system, it emits a characteristic “hissing” sound. A part of this sound is high frequency ultrasound, which can not be heard by humans.

As the detector senses ultrasonic noise, the Gassonic Surveyor does not have to be in contact with the leaking gas itself.

It will detect the gas leak instantly even if the gas is carried away by wind or diluted in the air. The Gassonic Surveyor can be used in configurations with other detection methods.

1.3 -

main FeaTuReS

Detection radius

Sensor technology

Outputs

Visual output

Housing

Certifications

5 to 20 meters, depending on ultrasonic background noise level.

Stainless steel microphone technology

Analogue 4-20 mA interface and Alarm relay or Error relay. (NAMUR and dry contact).

Red and green LED

Acid-proof stainless steel (316L)

ATEX and IEC Ex, Intrinsically Safe (Ex-i) (Available on Gassonic website)


2.0 -

BacKGRound noiSe mappinG

The Gassonic Surveyor filters out frequencies below 25 kHz. However, a few sources other than leaking gas may produce ultrasonic noise above 25 kHz, and could therefore trigger the detector. To avoid these sources influencing the gas leak detector, it is recommended to perform a background noise mapping survey of the plant using the Gassonic 1700

Ultrasonic Mapping Meter.

The mapping survey makes it easy to adjust the trigger level and the delay time of each detector so that it is unaffected by background noise in the area covered. Gassonic can be contacted for further details on performing this mapping survey.

2.1 -

noiSe leVelS

It is helpful to know the actual noise level before installation, as this has influence on the Gassonic Surveyor’s detection range. Most environments can be divided in three overall noise levels.

1 2 3

3 m

1m 2m 3m 4m 5m 6m 7m 8m 9m 10m 11m 12m 13m 14m 15m 16m

If the Gassonic Surveyor is mounted above floor grating, the detection range will continue downwards.

Very low-noise areas 1

In ”very low-noise areas”, where background noise is below 58 dB, the trigger level must be set to at least 64 dB. This corresponds to a detection radius of 13-20 m.

Typical areas:

• Onshore wellhead areas in calm environment

• Salt dome gas storage facilities in calm environment low-noise areas

In ”low-noise areas”, where background noise is below than 68 dB, the trigger level must be set to at least 74 dB.

This corresponds to a detection radius of 9-12 m.

2

Typical areas:

• Areas with no machinery

• Areas with low frequency machine made noise

HigH-noise areas

3

In ”high-noise areas”, where background noise is below 78 dB, the trigger level must be set to at least 84 dB. This corresponds to a detection radius of 5-8 m.

Typical areas:

• Turbo compressor areas

• Complete open offshore weather deck

• Next to very noisy machinery


3.0 -

mounTinG

To ensure optimal performance, correct mounting of the gassonic surveyor is essential.

For optimal detection coverage the Gassonic Surveyor should be mounted at a height of 1 to 2 meters above potential leak spots, and if possible in a position which makes it accessible for maintenance purposes. In special cases, such as installation over compressors, the height can be increased.

The Gassonic Surveyor can be mounted on a pole or a wall using the optional mounting bracket UA1352A for standard horizontal mounting or on the 45° mounting bracket UA1353. It can also be mounted on a ceiling, on structural beams or similar non-vibrating structures.

As it primarily detects in a downward direction the unit must be mounted with the microphone compartment facing down. This will also prevent dirt from collecting in the wind screen, which may block the sound.

17m 16m 15m 14m 13m 12m 11m 10m 9m 8m 7m 6m 5m 4m 3m 2m 1m

1 2 3

1 Full coVerage 2 obsTrucTion e.g. a concreTe wall 3 reduced coVerage

Mount the detector so it is clear of solid physical structures such as walls and heavy machinery, as these will dampen any ultrasonic noise, leading to reduced detection coverage. Normal piping will not affect the coverage.

1m 2m 3m 4m 5m 6m 7m 8m 9m 10m 11m 12m 13m 14m 15m 16m

45˚

Installation and User Guide for Gassonic Surveyor (BB6019-01)

If necessary, the Gassonic Surveyor can be mounted with an inclination not exceeding

45°. If mounted next to a wall, the inclination will provide improved coverage. The optional mounting bracket UA1353 can be used for mounting at a 45° angle.

Page 5

4.0 -

mechanical conTRucTion

The Gassonic Surveyor is an intrinsically safe (Ex-i) ultrasonic gas leak detector. The cables are connected through M20 x 1.5 cable entries in the top part using glands according to Ingress Protection class IP66. The inner cores of the cable penetrating the detector should be 200 mm long. This will ensure no tension on the wires and the connectors when the unit is opened. The two mounting bolts are on the top part of the detector. This means that the cables will enter on the fixed part of the detector. The bottom part is attached to the top part by means of four allen screws with water sealing washers. Loosening these screws will expose the connectors. The screws will be retained in the bottom part and will not drop out. The bottom part of the detector is supported by the Load-strap, which is connected to the top part.

The Gassonic Surveyor is mounted from the top with two 8 mm stainless steel bolts. Maximum thread depth is 15 mm. To open the unit, loosen the four screws. The screws are secured, and will not drop out. When closing the unit use a torque of 6Nm on the 4 screws.

The lower part of the unit is supported by a solid cable strap on which it can hang while connecting the cables.

When connecting the cables and moving the jumpers, the power of the unit must be switched off.

See wiring diagram on page 18.

13

3

14

17

2

4

7

6

17

15

15

1

11

12

8

7

6

5

10

9

1. Top

2. Bottom

3. Mounting Bracket UA1352A

4. Sealing flange and sealing gasket

5. Windscreen DS0592

6. Microphone MM4190

7. M5 x 16 Allen screw

8. M5 Sealing washer

}

9. User LED

EU0001


10. Communication LED

11. Earth connection inside

12. Earth connection outside

13. Cable entries M20 x 1.5

14. Earth wire and strap between Top and Bottom part

15. Protective plate permanently attached

16. Rotary switches

17. Jumpers

18. Eex-i connectors

Page 6

4.1-

mechanical inSTallaTion

Two M8 stainless steel bolts (not supplied), 88mm apart, attached to the top of the detector are used to fix the Gassonic

Surveyor in its operating position. These bolts may penetrate the detector top by a maximum of 14 mm. The detector can be mounted using a Gassonic mounting bracket. The bracket is an optional accessory and is supplied with two M8 mounting U-bolts which can fit around a pole with a maximum dimension of 63 mm.

4.2 -

SpaRe paRTS and acceSSoRieS

DESCRIPTION

Screw & Sealing Washer Kit

Microphone*

Magnet stick

Mounting bracket (standard)

Mounting bracket (45° angle)

Torque wrench

Windscreen*

GASSONIC PART NUMBER

EU0001

MM4190

UC5352

UA1352A

UA1353

EZ1000

DS0592

*The following parts are field replaceable but not consumable parts: Allen screw, Sealing washer, Microphone and

Windscreen.

4.3 -

mechanical opeRaTion and SaFeTY

When closing the top chamber ensure that the Load-strap and wires are not caught between the bottom part and the top part of the detector. Check the status of the rubber sealing and the flange. Send the unit to Gassonic for repair if the flange and/or the rubber sealing is damaged. Check the sealing washers and replace them if they are damaged. The four allen screws with sealing washers must be tightened to 6 Nm using a torque-wrench.

Installation and Maintenance must be carried out by suitably skilled and competent personnel only. Before opening and working on the Gassonic Surveyor in hazardous locations, be sure that power is off.

High readings of ultrasonic sound level may indicate an explosive concentration of gas at the sensor. A subsequent fall in the ultrasonic sound level does not imply that safe working conditions have been restored.

Install and maintain all hazardous area equipment in accordance with the relevant regulations and practices of the country concerned.

warning:

The inner three screws should not be unscrewed and the bottom part should not be opened.

The warranty will be void if the bottom part is opened.


5.0 -

alaRm delaY and TRiGGeR leVel

80

60

40 dB

120

100

Trigger level

Delay time Alarm

Ambient background noise

20

0

10 20 30 40

In this example the trigger level is set to 74 dB (corresponding to 12 mA) and the alarm delay time to 10 sec. sec mA

20

12

4

An alarm delay time prevents false alarms when the

Gassonic Surveyor detects spikes of high level ultrasonic noise. After the delay time has run out an alarm will be triggered, but only if the noise level is still above the trigger level. It is imperative to incorporate an alarm delay time of at least 10 seconds. This can be set locally in the unit if using the relay or in the Fire & Gas system if using the 4-20mA output. The trigger level is set at least 6 dB higher than the ambient ultrasonic background noise.

5.1 -

ouTpuT meThodS

The Gassonic Surveyor has two output methods: standard 4-20 ma output.

When using this output method a trigger level and delay time should be set in the Fire & Gas system. alarm relay or error relay.

The unit has one relay output. This can be configured to be either an Alarm or Error relay. When using the Alarm relay, the trigger level and delay time should be set internally.

The relay (Alarm or Error) output is also changeable from NAMUR to Dry contact. It must be decided which output is the best suited for each application. Factory default settings are: Alarm relay and

NAMUR output.

89

94

99

104

69

74

79

84 dB

44

54

59

64 mA

4,0

6,7

8,0

9,3

10,7

12,0

13,3

14,7

16,0

17,3

18,7

20,0


5.2 -

uSinG The 4-20 ma ouTpuT

When using the 4-20 mA output, the trigger level and the delay time are set in the Fire

& Gas system. The 4-20 mA output is a straight output. This means that if the noise level increases the output current increases as well. The trigger level must be set at least 6 dB higher than the ambient ultrasonic background noise level.

It is good practise to set the internal trigger level to the same level as the 4-20 mA trigger level in the F&G system.

◄ Noise levels (trigger levels) and the relating output values. Other values can be calculated using this formula: mA=(((dB-44)/60)*16)+4 or dB=(((mA-4)*60)/16)+44

Page 8

5.3 -

alaRm RelaY

When using the Alarm relay output, the trigger level must be set internally, together with a delay time. The rotary switches are marked with numbers from 0 to 9 representing a specific value (see table below). The Alarm relay is NC (normally closed) as default factory setting.

It is good practice always to set the internal trigger level at the same level as that on the external system when using the 4 -20 mA output. Doing so will ease the test procedure and the maintenance of the system.

Trigger level switch

The trigger level switch position and the corresponding ultrasonic noise level values.

7

8

9

5

6

3

4

1

2

Position

0

89

94

99

69

74

79

84

Trigger level, dB

54

59

64

▲ Rotary switches for setting trigger level and delay time.

alarm delay switch

The alarm delay switch position and the corresponding delay times. The delay must be at least 10 seconds.

8

9

6

7

4

5

2

3

Position

0

1

15

20

30

45

Delay time, seconds

0

10

60

120 (2 minutes)

240 (4 minutes)

480 (8 minutes)

5.4 -

eRRoR RelaY

In Error relay mode the Gassonic Surveyor will indicate low supply voltage by deactivating the relay, swiching off the user LED and flashing the communication LED. The

Error relay is always NC (normally closed).

The figure shows the jumper in the lower position (factory default setting) to provide Alarm relay functionality. To choose Error relay function instead of Alarm relay function, move the relay jumper to the upper position.

5.5 -

namuR oR dRY conTacT

The figure shows the two jumpers in the lower position

(factory default settings) to provide NAMUR output functionality to either the Alarm or Error relay. To switch the relay mode from NAMUR to dry contact move the two jumpers as shown.


6.0 -

TeST and caliBRaTion

The Gassonic Surveyor is tested and calibrated as part of the manufacturing process. However, prior to use, it is good practice to calibrate and test the unit. This can be done using the Gassonic 1701 test and calibration unit.

Start any test and calibration procedure by clipping the

Gassonic 1701 onto the Gassonic Surveyor sensor head.

Lock the tool on the mounting bayonet by rotating it clockwise.


To activate the calibration mode of the

Gassonic Surveyor place the magnet stick in the notch as illustrated.

The magnet stick is supplied with the Gassonic 1701.

Page 10

1

7.0 -

Gain TeST pRoceduRe

acTion

Switch the Gassonic 1701 on. The version number will display briefly. You must now select the detector type.

2

Select “Gassonic Surveyor” by pressing the Down button and then press Enter.

BuTTon

3

Use default filter 25 kHz by pressing the

Enter button.

diSplaY

Select type

Gassonic

Surveyor

Filter 25 kHz

4

Select test with the Down button.

Select test

5

Select gain test by pressing the Enter button.

Test gain

6

Activate the test by pressing the Enter button.

Activate

“TEST”

7

When the test is finished, the Gassonic 1701 beeps twice, and shows a message, corresponding to the Gassonic Surveyor’s internal settings. In this example the trigger level is 79 dB and the rotary switch is in position 5. If the test is more than ± 3 dB out of tolerance, perform calibration.

If the test was faulty the Gassonic 1701 beeps three times and a No response message displays on the screen. Press Enter to try again, or check the “Trouble shooting”-chapter

Meas: 79

Pos: 5

No response

BuTTon


8.0 -

delaY TeST pRoceduRe

After a successful gain test, you must move on to the delay test. Please note that this test will trigger an alarm regardless of output mode (Alarm relay or 4-20 mA). You should be in contact with the staff in the fire and gas control room to measure the delay time and to avoid causing a false alarm. When the control room observes an alarm, press ”ENTER” or

“TEST” to stop the test. The time read-out on the display corresponds to the alarm delay setting of the system. The user interface LED will turn red when the test starts and then flash when the internal delay time has passed.

1

acTion

Switch the 1701 on. The version number will display briefly. You must now select the sensor type.

2

Select “Gassonic Surveyor” by pressing the

Down button and then press Enter.

BuTTon diSplaY

Select type

Gassonic

Surveyor

BuTTon

3

Use default filter 25 kHz by pressing the Enter button.

Filter 25 kHz

4


Select test

5

Select the delay test by pressing the Enter button.

Test delay

6

To test the internal delay, you must keep an eye on the unit LED as it changes from constant red to flashing red. To test the external alarm delay time you must be in contact with staff in the control room.

7

Press Enter when the LED flashes red. The delay shows on the screen. If you use the analog 4-20 mA output, press Enter when the control room observes an alarm.

Activate

“TEST”

Delay on:

0:10


9.0 -

caliBRaTion pRoceduRe

A calibration can be performed at any time. Along with the Gassonic 1701, you will need the magnet-stick to set the

Gassonic Surveyor in calibration mode.

1

acTion

Switch the Gassonic 1701 tool on. The version number will display briefly. You must now select the sensor type.

BuTTon diSplaY

Select type

BuTTon

2



Gassonic

Surveyor

3

Use default filter 25 kHz by pressing the Enter button.

Filter 25 kHz

4


Select test

5

Select the Gassonic Surveyor calibration by pressing the Down button, and then press

Enter.

Surveyor

Calibr.


6

acTion

Activate the test and calibration mode on the Gassonic Surveyor with the enclosed magnet-stick. Place the magnet-stick in the magnet stick notch next to the interface LED and hold it for more than 3 seconds.

diSplaY

> 3 Sec.

7

The interface LED will flash green and red to indicate that the unit is now in test mode.

The test mode will time out after 60 sec of inactivity and return to normal mode. You may also return the Gassonic Surveyor to normal service by placing the magnet stick in the magnet stick notch again.

8

acTion

Activate the calibration by pressing Enter on the Gassonic 1701.

diSplaY

Activate

Calibr.

9

The calibration is carried out automatically, and will stop when finished. The Gassonic

Surveyor LED turns green.

10

If the test was faulty the red LED on the Gassonic 1701 flashes and the message “No response” is displayed on the screen. The

Gassonic Surveyor user LED will flash green for 5 seconds and then the unit will return to normal operation. Check the chapter

“Trouble shooting” and try calibrating again.

Calibr. complete

No response

BuTTon


10.0 -

STep TeST

1

The step test can be carried out to validate the 4-20 mA output to the control room. The test makes it possible to step through different sound pressure levels. Note that this test might trigger an alarm if the sound level exceeds the trigger level.

acTion BuTTon diSplaY BuTTon

Switch on the Gassoinc 1701. The version number will display briefly. You must now select the sensor type.

Select type

2



Gassonic

Surveyor

3

Use default filter 25 kHz by pressing the

Enter button.

Filter 25 kHz

4


Select test

5

Select the step test by pressing the Enter button.

Step test

6

Push UP-button to increase the test sound level from 44 to 101 dB.

049 dB

7

Push DOWN-button to decrease the test sound level.

045 dB

8

When all levels are tested, push ENTER to stop the step test.

Step test


11.0 -

GaSSonic SuRVeYoR led inTeRFace

The Gassonic Surveyor has two interface LEDs, which will flash red or green depending on the state of the unit. The LED on the front of the unit indicates the current mode of the Gassonic Surveyor, and the LED next to the sensor head communicates with the test- and calibration tool Gassonoc 1701. During service operations with the Gassonic 1701 the communication LED is not visible.

Normal oPeratioN

Normal Operation

Voltage Error

Internal Trigger level reached

Internal Delay time elapsed

Service oPeratioN

Calibration Mode

Calibration Failure

Internal Delay time testing


Front led

Green

Off

Red

Flashing Red

Flashing Red and Green

Flashing Green

Red

Flashing Red communication led

Off

On

On

On

12.0 -

TRouBle ShooTinG

If the calibration or gain test was faulty the Gassonic 1701 beeps three times and a No response message is displayed on the screen.

• Check if there is dirt on the optical window between the 1701 and the Gassonic Surveyor.

• Check if there is dirt on the windscreen or on the microphone.

• Replace microphone if nessesary.

13.0 -

poWeR conSumpTion

The unit can operate with a supply voltage of 9 to 28 Vdc. Power consumption patterns below are calculated with a 33% safety factor, and with the minimum voltage of 9 Vdc.

When using the 4-20 mA and the relay in Error mode

When using the 4-20 mA and the relay in Alarm mode

When using only relay output in Alarm mode

I min

=600 mW

I min

=500 mW

I min

=350 mW

Unit in alarm. Relay energized

Unit in alarm. Relay de-energized

Unit in alarm. Relay de-energized


Normal oPeratioN

Normal Operation

Voltage Error

Internal Trigger level reached


Service oPeratioN

Calibration Mode

Calibration Failure

Internal Delay time testing


Front led

Green

Off

Red

Flashing Red

Flashing Red and Green

Flashing Green

Red

Flashing Red communication led

Off

On

On

On

(1.) 4-20mA with 500ohm load, Alarm Relay (De-energized), 101dB background noise, Unit in alarm (2.) 4-20mA with 500ohm load, Error Relay (Energized), 101dB background noise, Unit in alarm (3.) 4-20mA not connected Alarm Relay (De-energized), 101dB background noise, Unit in alarm (4.) 4-20mA not connected Alarm Relay (Energized), 101dB background noise, Unit in alarm


(5.) 4-20mA with 500ohm load, Alarm Relay (Energized), 44dB background noise, Unit not in alarm (6.) 4-20mA with 500ohm load, Alarm Relay (Energized), 64dB background noise, Unit not in alarm (7.) 4-20mA with 500ohm load, Alarm Relay (Energized), 84dB background noise, Unit not in alarm (8.) 4-20mA with 500ohm load, Alarm Relay (Energized), 94dB background noise, Unit not in alarm


14.0 -

WiRinG

Hazardous area

Gassonic Surveyor

Minimum specification:

Supply voltage: 9 V.

Supply power: 600, mW.

(350 mW. with Io= 0mA)

Safety description:

Specification for the sum of

Pin 1, 3, 4 and 5 in respect to Pin 2:

Ui: 28V dc

Ii: 220mA dc

Pi: 950mW

Ci: 14nF

Li: 10µH

V+

GND

I_SOURCE

3

1

2

NB: Values given to I.S. parameters are the total sum of inputs.

When input voltage is 28 Vdc the current can not exceed 120 mA, and when the input current is equal to

220 mA Vdc the voltage must not exceed 17,5 Vdc.

REL1

REL2

4

5

Safe area

Barriers / Isolators

This could be a number of different barriers or isolator.

(see example drawings)

NB: When choosing barriers or isolators ensure that safety description is fulfilled.

Control room

24VDC

U_SUP

24VDC

0V

U

0V

Min.

5K6

0V

U

Installation in accordance with 60079-14 and -25 or corresponding local regulations and laws.

Specific safety descriptions

Power supply:

U i = 28/17.3 Vdc

I i = 120/220 mAdc

P i = 950 mW

4-20mA source: output:

U o = Ui

I o = Ii

Relay output:

I

U

P i i i = 28/17.3 Vcd

= 120/220 mAdc

= 950 mW

Cabel param from En60079-14:

220 pF/meter

1 uH/meter or 30uH/ohm

IS Earth

Generic wiring diagram for Gassonic Surveyor. Connection data and example wiring diagrams of MTL and Peppel &

Fuchs barriers/isolators can be found in the Appendix. Any barriers/isolators can be used as long as their output safety description does not exceed that of the Gassonic Surveyor. This product is designed to be installed according to IEC

Standard EN 60079-14.


Wire connectors on the unit are individually marked for correct wiring and reference.

Page 19

15.0 -

Technical daTa

General description

Detector type Ultrasonic Gas Leak

Detector for fixed installations

Sensor technology Stainless steel Microphone technology

Detector frequency range 25 kHz – 70 kHz

Dynamic range

Response time

44 dB – 104 dB SPL

Instant

Detection coverage (leak rate 0.1 kg/s)

5 - 20 meter radius

Power requirements (minimum)

When using 4-20mA and Relay output

Input Voltage

Input Current

9 Vdc

57 mA

Pi

Ci

Ui

Ii

Li

Input Power 600 mW

When using relay output only

Input Voltage 9 Vdc

Input Current

Input Power

Safety description

Power supply

39 mA

350 mW

28 Vdc

220 mA

950 mW

14 nF

10 µH

182 mm / 7.2 inch

Installation and User Guide for Gassonic Surveyor (BB6019-01) output methods

Analogue interface

0 mA

3 mA

Low supply voltage/No power

Unit locally inhibit

4 - 20 mA 44 dB – 104 dB SPL

Relay (option 1 or 2 operator selectable)

Option 1 Alarm relay (switch on preset trigger level)

Option 2 Error relay naMur/dry contact (operator selectable)

NAMUR output

Normal (NC)

Alarm (NO)

Environmental data

760 Ω ±1%

10,422k Ω ±1%

Operating temperature

- 40 °C to + 75 °C

Humidity 0 to 100 % relative humidity

Ingress Protection

Atmospheric conditions

Construction

Housing

IP66

Normal air pressure and oxygen content

Stainless steel AISI 316L

Weight

Vibration sensitivity

2.24 kg

0.13 m/s² perpendicular to the membrane will trigger the unit in the most sensitive range (44dB SPL)

Dimensions

182 x 145 mm

(7.2 x 5.7 inch)

Two gland/conduit entries

M20 x 1.5

RF emission and immunity

Tested according to:

EN61010-1 General electrical safety

RF emission EN61000-6-4

EN61000-6-2 RF immunity

Certifications

ATEX: II 2G EEx ia

IIC T4

IECEX: EEx ia IIC T4

SIL 1/2 rated

Page 20

16.0 -

SupplieRS declaRaTion

supplier’s declaration of conformity in accordance with ec, iec and aTeX directives

No.: BC1019 issuers name and address: General Monitors Ireland Ltd., Ballybrit Business Park, Galway, Republic of Ireland object of the declaration:

Ultrasonic Gas Leak Detector, Gassonic Surveyor

The object of the declaration described above is in conformity with the requirements of the following documents:

DS/IEC 60079-0 2006

DS/IEC 60079-11 2007

Electrical apparatus for explosive gas atmospheres

Part 0: General requirements

Electrical apparatus for explosive gas atmospheres Part 11: Intrinsic Safety ‘i’

DS-EN50014, 1.

DS-EN50020, 2.

2000 Electrical apparatus for potentially explosive atmospheres General requirements

2002-07-01 Electrical apparatus for potentially explosive atmospheres - Intrinsic safety ‘i’

DS-EN61010-1, 2. 2001-12-7 Safety requirements for electrical equipment for measurement, control, and laboratory use Part 1: General requirements.

DS-EN61000-6-3, 1. 2002-05-30 Electromagnetic compatibility (EMC) Part 6-3: Generic standards -

Emission standard for residential, commercial and light-industrial environments.

DS-EN61000-6-2, 2. 2002-05-30 Electromagnetic compatibility (EMC) Part 6-2: Generic standards -

Immunity for industrial environments

ISO 9001 2000 Quality Management System certificate Markings:

DEMKO 08 ATEX 142547X

IECEx ULD 08.0001X

Ex ia IIC T4

0518

II 2G

-40°C to +75°C additional information:

This declaration shall cease to be valid if modifications are made to the equipment without our approval.

Supplier will provide an Instruction Manual in a European Language upon request placed in adequate time.

Responsible Person

Cecil Lenihan

General Manager

Date

The signatory acts on behalf of company management, and with full power of attorney


17.0 -

WaRRanTY STaTemenT

Gassonic A/S warrants the Gassonic Surveyor to be free from defects in workmanship or material under normal use and service within two (2) years from the date of shipment. Gassonic A/S will repair or replace without charge any equipment found to be defective during the warranty period. Full determination of the nature of, and responsibility for, defective or damaged equipment will be made by Gassonic A/S personnel. Defective or damaged equipment must be shipped prepaid by appointment with Gassonic

A/S or the representative from which shipment was made. In all cases this warranty is limited to the cost of the equipment supplied by Gassonic A/S. The customer will assume all liability for the misuse of this equipment by its employees or other personnel. All warranties are contingent upon proper use in the application for which the product was intended and do not cover products which have been modified or repaired without Gassonic A/S approval or which have been subjected to neglect, accident, improper installation or application, or on which the original identification marks have been removed or altered. Except for the express warranty stated above, Gassonic A/S disclaims all warranties with regard to the products sold, including all implied warranties of merchantability and fitness and the express warranties stated herein are in lieu of all obligations or liabilities on the part of Gassonic A/S for damages including, but not limited to, consequential damages arising out of/or in connection with the use or performance of the product.


18.0 -

appendix





GaSSonic SuRVeYoR ulTRaSonic GaS leaK deTecToR

From serial number: 197590

BB6019-01

CAPITOL COPENHAGEN +45 4580 0831

GaSSoNic a/S

Energivej 42A

DK-2750 Ballerup

Denmark

Tel +45 44 700 910

Fax +45 44 700 911 [email protected]

www.gassonic.com

GASSONIC SURVEYOR User Manual

uSeR Guide FoR

GaSSonic SuRVeYoR ulTRaSonic GaS leaK deTecToR

conTenTS

The GaSSonic SuRVeYoR

applicaTion

WoRKinG pRinciple

main FeaTuReS

BacKGRound noiSe mappinG

noiSe leVelS

mounTinG

mechanical conTRucTion

mechanical inSTallaTion

SpaRe paRTS and acceSSoRieS

mechanical opeRaTion and SaFeTY

warning:

The inner three screws should not be unscrewed and the bottom part should not be opened.

The warranty will be void if the bottom part is opened.

alaRm delaY and TRiGGeR leVel

ouTpuT meThodS

uSinG The 4-20 ma ouTpuT

alaRm RelaY

Trigger level switch

alarm delay switch

eRRoR RelaY

namuR oR dRY conTacT

TeST and caliBRaTion

1

Gain TeST pRoceduRe

2

3

4

5

6

7

delaY TeST pRoceduRe

1

2

3

4

5

6

7

caliBRaTion pRoceduRe

1

2

3

4

5

6

> 3 Sec.

7

8

9

10

STep TeST

1

2

3

4

5

6

7

8

GaSSonic SuRVeYoR led inTeRFace

TRouBle ShooTinG

poWeR conSumpTion

WiRinG

Hazardous area

Safe area

Technical daTa

SupplieRS declaRaTion

WaRRanTY STaTemenT

appendix

GaSSonic SuRVeYoR ulTRaSonic GaS leaK deTecToR

From serial number: 197590

Key Features

Related manuals

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