Smoke density monitor

Optic head with fiber-optic cable
Optic head with fiber-optic cable

Robust Technology & Versatile Design

The SBS1000 Smoke Density Monitor is a particular robust system that is well suited to resist heat and vibrations in and around smoke stacks. Our patented technology removes the light source from the smoke stack contrary to competing technology. Instead, the infrared LED is placed in the monitor cabinet and the light beam brought to the smoke stack via robust optic fibers. The lenses of the optic heads are kept clean with purge air.

These features reduce the requirements for maintenance and especially spare parts to a bare minimum. Green Instruments (former SBS Technology) was the first to make use of this design to the highest satisfaction of the users.

This robustness is combined with a high flexibility which means that the G1000 Smoke Density Monitor can be installed in very diverse settings. The small monitoring unit can be placed almost anywhere. It provides you with two alarm relays and an analog signal that can be adapted to your special needs.

The optional G1900 Smoke Emission Monitoring System allows you to integrate measurements from various stacks.

Benefits to Economy and Environment

Easy lens cleaning
Easy lens cleaning

Port authorities and regional authorities around the world – but especially in North America – are to increasing degrees regulating emissions from ships as well as from industrial plants. Although legislation is varying, regulations in North America would typically rule that ships may not emit smoke with an opacity of more than 20% for more than 3 minutes. A similar limit is set for shipboard incinerators by IMO.

Installing a SBS1000 Smoke Density Monitor will help you check and document compliance with environmental standards. This will avoid fines, time-consuming investigations, and costly delays. The cost of installing a SBS1000 Smoke Density Monitor is marginal compared to a single fine. Monitoring the emissions of your ships will also contribute positively to your image as environmentally responsible company. Especially black smoke has the potential of severely harming that image.

But the economic benefit has a wider range. By controlling the combustion, your crew and personnel is better equipped to detect faulty operation at an early stage and thus optimize operation and maintenance. This is especially important for avoiding soot contamination of inert gas.

An installation of a G1000 Smoke Density Monitor with the monitoring unit and one optic head
An installation of a G1000 Smoke Density Monitor with
the monitoring unit and one optic head

Specifications

Monitoring Unit incl. Digital Display :

Power Supply standard 210–250 V AC – 50/60 Hz – 12 VA max. — optional 105–130 V AC or 20–30 V DC
Ambient temperature 0ºC – 55ºC
Dimensions / Weight H×W×D: 300 × 200 × 150 mm / 5.5 kg (monitoring unit alone)
Enclosure IP 65 Steel box
Display 0…100% opacity level (programmable)
Output signals (linearized) 4…20 mA (4 mA ≈ 100% – 20 mA ≈ 0% Opacity) max. 800 Ω or 0…10 V DC (0 V ≈ 100% – 10 V ≈ 0% Opacity) max. 10 mA
Alarm delay default 5 s (programmable 0–99 s)
Relay function 2 relays, volt free, freely configurable — default NC — max. 250 V AC, max. 2A
Default alarm levels Relay 1 at 20% opacity (= Ringelman 1) and Relay 2 at 30% opacit

Fiber-Optic Cables :

Optic fibers glass-fiber core in stainless steel sheathings with brass end tip
Operating temperature max. 240ºC at the glass fiber tip behind the lenses – up to 500ºC in the stack
Length of cables standard 4.5 m – optional 6.0 m, 7.5 m, or others

Optic Heads with Purge-Air System :

Welding sockets Zi34×200 mm (Ø×L) – sockets aligned opposite of each other
Scanning distance 1 m to 3 m – for shorter ranges one lens need to be removed or replaced
Head Housing H×W×D: < 120 × 100 × 60 mm – stainless steel – with purge-air connector
Purge Air Supply 10 NLPM – i.e. 5 NLPM for each head

Optional Equipment

  • SBS1900 Smoke Emission Monitoring System.
  • Welding & Adjustment Bracket for easy mounting.
  • Audit Filter Pens.
  • Purge air blower — Filter-regulator for purge air.
  • Alarm Annunciator for panel mounting.
  • Visualization and data logging.
  • Data-system integration via various busses such as RS485 and CAN.
  • Specifications subject to changes without notice.

    Monitoring unit
    Monitoring unit
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