Opacity Monitor: DSL-1000

The DSL-1000 opacity monitor is an advanced dust particle and smoke monitoring system designed for use on a range of industrial applications. Using state of the art electronic design techniques, DynOptic Systems have created an opacity monitor that is rugged, accurate, and requires minimal maintenance.

Using the familiar light transmission opacity technique, a base measurement of transmission is made. From this the DSL-1000 can be calibrated to report in units of opacity (%), volumetric density (mg/m³), Ringelmann, MOR (km), extinction, and a variety of logarithmic functions.

The instrument consists of a pair of sensors (a transmitter and receiver) mounted on the stack using standard flange fittings, and an operator interface (a control unit) fitted up to 1km away, either at the base of the stack or in a control room.

All signal processing is performed in the sensors using the latest generation microprocessor electronics. Data is exported from the sensors via serial link (RS485) to the operator interface which has a human interface is the form of a display/keypad, and an electronic interface in the form of relay contacts, analogue outputs, and serial comms (RS232/485). Furthermore the operator interface offers the facility to add plug-in interface modules enabling comms with a variety of generic bus systems, such as ModBus, Profibus, DeviceNet, Ethernet etc.

The sensors are of rugged construction with a high environmental rating. Both heads are supplied with stainless steel air purge bodies, which when connected to an airline will serve to protect the optical surfaces from dirt and particulate deposition – prolonging service intervals. The sensors themselves are attached to the back of the air purge bodies with quick release catches, affording speedy access to the lenses for ease of maintenance.

The operator interface is housed in a rugged weatherproof enclosure designed for wall mounting. The human interface consists of a clear single line VFD display (visible in completely dark conditions as well as sunlit environments) and a 20 key numeric keypad. The wiring terminations are made to two part terminal blocks inside a terminal compartment dedicated access.

Note: The DSL-1000 operator interface is now available in a 4U 19” rack enclosure, for easy integration into CEMS packages – quote DSL-1000R.

The DSL-1000 and DSL-1000R represent the perfect solution to your smoke or particulate monitoring requirement.