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MSA Safety OBSERVER i

Photo MSA Safety OBSERVER i Descriptions MSA Observer i Specifications MSA Observer i User Manual for MSA Safety OBSERVER i Related instruments to MSA Safety OBSERVER i

MSA Observer i Ultrasonic Gas Leak Detector

MSA Observer i Ultrasonic Gas Leak Detector
MSA Observer i Ultrasonic Gas Leak Detector
MSA Observer i Ultrasonic Gas Leak Detector

Instantly detect pressurized gas leaks with this high-precision, omni-direction acoustic detector utilizing Gassonic® ultrasonic technology. Works even when traditional methods of gas detection are unsuitable or dependent on ventilation. The Observer-i UGLD provides an industry-leading detection range (up to 28 m) reducing the number of detectors required.

			

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Made in USA. brand MSA Safety, model OBSERVER i

International delivery to Europe, Asia and Africa.
Our warehouses are located in the UK, UAE and Senegal.

price by request

Available

Available

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Our company is a global supplier of control and measuring instruments from well-known world brands

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Discounts for organisations

We sell high-tech equipment at very low prices. We provide really advantageous conditions for partners

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Fast delivery across the Europe & Asia

We take care of all logistics and customs clearance of I&C solutions from Europe, USA, China and India

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Our specialists are ready to advise you on any technical question. We can find an analogue of any device

Descriptions of MSA Observer i

  • With ANN technology, the Observer-i makes it possible to fully analyze the sound spectrum as low as 12 kHz since common high pass filters are not used. This provides a broader leak detection range which also increases sensitivity to smaller gas leaks, without interference from unwanted background noise.
  • ANN technology enables the Observer-i to be installed without time consuming “training” sequences, and provides industry-leading detection distance, with unprecedented suppression of false alarms. In addition, ANN technology ensures that the Observer-i has the same gas leak detection coverage in high and low noise areas. The device requires no alarm set points or trigger levels to be configured, nor do these alarm parameters need to be adjusted if background ultrasound were to increase or decrease over time.
  • The Observer-i is backwards compatible with earlier versions of the Gassonic® Observer by means of the Classic Mode setting wherein ANN is disabled and the legacy electrical interface is used.
  • The Observer-i features the patented Senssonic™ self-test function. This well-proven self-test checks the device’s electrical integrity and microphone every 15 minutes and ensures the Observer-i is operational at all times. The microphone and the microphone
    windscreen are constantly monitored to ensure that the detector always has optimal sensitivity and detection coverage.

Applications
• Floating Production Storage
and Offloading Vessels (FPSOs)
• Gas Compressor and Metering Stations
• Gas Storage Facilities
• Hydrogen Storage Facilities
• LNG / GTL Trains
• LNG Re-gasification Plants
• Offshore and Onshore Oil and Gas Installations
• Petrochemical Processing Plants

Technical specifications of MSA Observer i

Features Benefits
ARTIFICIAL NEURAL NETWORK (ANN) Improved detection range and background noise rejection prevents false alarms
SENSSONIC™ INTEGRATED ACOUSTIC SELF-TEST Failsafe operation
ONE-PERSON ACOUSTIC SOUND CHECK WITH TRACEABLE PORTABLE TEST UNIT High reliability and trouble free maintenance
HART AND MODBUS Provides complete status and control capability in the control room
EVENT LOGGING Stores fault, sound check, calibration, and alarm event history
DETECTS GAS LEAKS FROM 2 BAR (29 PSI) PRESSURE Very small gas leaks can be detected quickly
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Electrical Specifications
INPUT POWER 15–36 VDC, 250 mA max.

24 VDC, 170 mA nominal
RELAY RATINGS (OPTIONAL) 8 A @ 250 VAC
CURRENT OUTPUT (SINK OR SOURCE) Status Indications:

0                  mA: Start up, no power

1                  mA: Pulsed acoustic error 3 mA: Unit inhibit Classic Mode:

4–20 mA, 40–120 dB (u) ANN Mode:

4–12 mA, 40–120 dB (u)

16 mA, warning

20 mA, alarm
EMC/RFI EMC Directive 2014/30/EU EN 61000-6-2, EN 61000-6-4
SERIAL DIGITAL COMMUNICATION HART, Modbus
CABLE REQUIREMENTS Max. cable length between Observer-i  and power source @ 24 VDC (20 ohm)  2.08 mm2 (14 AWG) – 1,809 m (5,928 ft)
Environmental Specifications
OPERATING TEMPERATURE RANGE –40°C to 60°C (–40°F to 140°F)
OPERATING HUMIDITY RANGE 10–95% RH, non-condensing
Mechanical Specifications
HOUSING Stainless Steel AISI 316L
DIMENSIONS 203 x 203 x 201 mm (7.99 x 7.99 x 7.91 in)
WEIGHT 7.5 kg (16.6 lbs)
CONDUIT ENTRIES M20 x 1.5  (additional ¾“ NPT adapter available)
MOUNTING HOLES 2 x mounting screws – M8 x 19 max
INGRESS PROTECTION IP66 / Type 4X
STANDARD CONFIGURATION OBSERVER i-1-1-1-1-1-1
Gas Name

 

 Carbon Dioxide

Ethylene

Hydrogen Sulfide

Methane

Ethane

Helium

Hydrogen

Propane

Propylene
System Specifications
DETECTOR TYPE Ultrasonic (acoustic) gas leak detector
BACKGROUND NOISE REJECTION METHOD Artificial Neural Network (ANN)
GAS LEAK

RECOGNITION METHOD

 Artificial Neural Network (ANN)
MIN. ACOUSTIC DET. FREQUENCY

(ANN MODE)

 12 kHz
MIN. DETECTION

LIMIT

 40 dB (u)
ACCURACY ±3 dB
SELF-TEST Performed every 15 minutes
MIN. PRESSURE REQUIREMENT 2 BAR (29 psi)
DETECTOR

COVERAGE

(REF. METHANE)

 Enhanced Mode (ANN) (@ 0.1 kg/sec):

FQHI setting (59 dB ANN sensitivity level):

17 meters (56 ft.) Default

Ultra-high to medium background noise FQLO setting (54 dB ANN sensitivity level):

28 meters (92 ft.)

Medium to low background noise Classic Mode (@ 0.1 kg/sec):

Ultra-high: 7 meters (23 ft.) w/84 dB T.L.

High: 12 meters (39 ft.) w/74 dB T.L.

Medium: 18 meters (59 ft.) w/64 dB T.L.

Low: 24 meters (79 ft.) w/54 dB T.L.
RESPONSE TIME < 1 s (speed of sound)
APPROVALS CLASSIFICATION ATEX/IECEx:

II 2 G D

Ex db ia IIB+H2 T6 Gb, Ex tb IIIC T85°C Db CSA:

Ex d ia IIB+H2 Gb T6, Ex tb IIIC T85°C Db FM/CSA:

Class I, Div. 1, 2 Groups B,C,D;

Class II, Div. 1, 2 Groups E,F,G; Class III, T5

(Ta = –40°C to +60°C)
APPROVALS ATEX, CE, UKEx, CSA, FM, IECEx, Inmetro, SANS

HART 6.0 registered

FM certified to IEC 61508 (SIL 3)
ACCESSORIES 1701 Test and Calibration Unit
DEVICE DRIVERS DDL, DTM available here
WARRANTY 2 years
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User Guide and Instruction manual for MSA Safety OBSERVER i

You can request the necessary certificates, documentation, instructions and user manuals for MSA Safety OBSERVER i using the special form.

You can buy MSA Safety OBSERVER i in UK or Europe at a favourable price in «DOLCHETRADE» by leaving a request on the website, by phone +441225535040 or by email . MSA Safety OBSERVER i price are subject to change depending on exchange rates. We deliver instruments by transport companies in the United Kingdom and Europe.

See also: Gas detectors & analysers