Smoke Opacity Monitor For Monitoring Marine Emissions

Smoke Opacity Monitor For Monitoring Marine Emissions

Smoke Opacity Monitor For Monitoring Marine Emissions
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SM-202M

The SM-202M uses the single pass light transmission measurement technique, with Transmitter/Receiver arrangement. A light beam emitted from the Transmitter passes across the stack to a Receiver, which measures the intensity of the received light. Increased smoke density in the stack gas attenuates the transmitted light and causes the intensity of the received light to fall. This reduction in intensity is measured and presented as % opacity. The higher the level of smoke present, the more light lost and therefore, the greater the opacity.

Optional accessories

  • Mounting flange installation kit.
  • Laser alignment tool to assist with installation.
  • Air purge blower kit (110 Vac / 230 Vac / 415 Vac).
  • Compressed air purge kit.
  • Reference filters for routine calibration check of the instrument.

Features :

Smoke Opacity Monitor For Monitoring Marine Emissions
  • In situ measurement directly in exhaust gas flow.
  • Measurement reading as % opacity, smoke density as mg/m³ or Ringelmann.
  • Modulated red LED source for long lifetime stability and immunity to ambient light.
  • Rugged 316 stainless steel construction.
  • ‘Intelligent’ sensor so no requriement for a local control unit.
  • Panel mounting Operator Interface enabling local monitoring and control of the instrument.
  • Choice of interface options enabling easy integration into ship’s control system.

Benefits

  • Excellent reliability record with more than 2000 instruments installed on ships worldwide.
  • Simple to install, commission and operate.
  • Easy to set-up via local Operator Interface.
  • Rugged design with no moving parts so low maintenance.
  • Latched head and lid design to enable ease of access for installation and maintenance.

Specification

Measurement Performance

No. Parameter Units Min Max Comment
1 Path Length (flange to flange) m 0.5 5 Flange-to-flange separation
2 Measuring Range – Transmission
Opacity
Smoke Density
Ringelmann
%
mg/m3
0
0
0
0
1.000
100
1000
5
The displayed units and measurement range can be user selected to suit requirements

Other measurement units also available

3 Display Resolution – Transmission
Opacity
Smoke Density
Ringelmann
%
mg/m3
0.001
0.1
0.1
1
4 Accuracy – Opacity % -2 +2
5 Damping s 1 999 Default setting is 10s
6 Drift with Temperature % -2 +2 Over operating range
7 Operating Wavelength nm 620 640 Red LED

Power & Air Requirements

No. Parameter Units Min Max Comment
8 Voltage Vac 105 240 50/60 Hz
9 Nominal Current Consumption A 1.0
10 Power Up Current Consumption A 1.0
12 Air Supply Volume Flow L/min 50 200 To each air-purge body
13 Air Supply Fitting 1” BSP threaded aperture in each air-purge body

Cable and Wire

No. Parameter Units Min Max Comment
14 Cable type – TX/TRX Interconnection cores 6 Screened multi-core, such as Belden 9873
15 Cable type – OI/TRX Interconnection cores 4 Screened multi-core, such as Belden 9873
16 Wire Size at Terminal Connections AWG 20 14

Interface Options

No. Parameter Units Min Max Comment
17 Serial Comms RS232 to the OI
18 Analogue Output (one) – Current Voltage mA
V
4
0
20
10
Isolated and scalable
19 Digital Relay Contacts (two) A 0 3 @30Vdc (signal level and data valid)

Physical

No. Parameter Units Min Max Comment
20 Ingress Protection : – TX/RX Heads IP65 For external use
21 Ingress Protection : – OI Panel Mounted IP64 From front face of panel when installed
22 Ambient Operating Temperature °C -20 +55 Air temperature around the heads
23 Operating Humidity % 100 Air humidity around the heads
24 Gas Temperature °C >dew
point
temp.
+600 Heat insulating gaskets included
(Higher temperatures on request)
25 Regulatory Compliance 2014/30/EU (Electromagnetic Radiation)
2014/35/EU (Low Voltage)
26 Materials : – TX/RX Heads
– Air Purge Bodies
– OI
316 Stainless Steel (powder coated)
Powder coated cast aluminium (Stainless steel option available
Steel back-box; aluminium front panel with PU laminate overlay
27 Weight – TX/RX Heads
– OI
kg 2.5
1.1
Including air purge body
31 Warranty months 24 Return to base warranty. Extensions available

Read more : Smoke density monitor for marine

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