OLCT 80

The Series 80 Sensor has unique advantages providing the solution you need. These include pre-calibrated sensors for detection of combustible gases, LEL catalytic and IR, toxic gases, oxygen
and features 2 integrated gas alarms with relays, and 1 fault alarm with relay.

Series 80 sensors have up to 9 glands dedicated to cable wiring. The minimum configuration includes, 1 electrical input dedicated to a sensor and two 4-20 mA or binary inputs. This configuration allows any other sensor from the network to be recognized (e.g temperature sensor, emergency stop, flame detector, smoke detector). Series 80 sensors outputs 4/20 mA with smart signal processing, an analog signal 4-20 mA and data signals between 0 and 4 - 20 and 25mA. The transmitted signal, between 0 and 3.2 mA and above 20 mA, can be processed to interpret and identify a wide range of trouble parameters such as: line faults, sensor faults, embedded electronics faults, ambiguity resolution, inhibition of calibration, maintenance call (initial drift or drift over time). The RS485 link gives access to sensor measurement, status default and internal relay management

Series 80 sensors relays are 2A / 250 VAC type with potential free SPDT contacts. There are 2 types of relays, 2 gas alarm relays or supplementary inputs and a fault relay. The relays are actuated either directly by the sensor electronics or supplementary inputs, or from the MX62 central unit or the control system to which the sensor is connected. Series 80 sensors relays can be in safety mode or not, triggered on increasing or decreasing alarms, manually or automatically acknowledged. By remote control, by pressing an external pushbutton connected to the dedicated binary input, by acknowledging on the MX 62 unit or the control system to which the sensor is connected. Series 80 sensors features 2 integrated gas alarms with relay and 1 fault alarm with relay. The Series 80 Sensor has a host of technical advantages For relay control, the Series 80 can operate as a standalone unit, an indisputable advantage in a classified explosion risk zone. OLCT 80 sensors can be connected either in loop (opto-isolated - up to 16 sensors), 4-20 mA, under direct power and operate as a central unit. Operation traceability of the Series 80 Sensor enables the operator to check records locally for the most recent time-date stamped events. Remote dialogue with the sensor using IR remote control. Measurement power supply redundancy and independent ports allow a redundant connection to the measurement unit.The Series 80 Sensor has low power requirements and employs the leading edge technology used in the OLCT80 transmitter making it very energy efficient. This major advantage means that more sensors can be connected, with smaller wire cross-sections and over greater distances.

The logistic advantages are gained by a loop arrangement. The transmitter is perfectly adapted to mounting and connection to the digital fieldbus loop of the MX 62 unit, supporting 1 to 3 digital addresses, the sensor block (detection element), and the two 4-20 mA auxiliary inputs. The OLCT80 Series is certified to the specifications required by standards EN 50054, 45544 and 50104 (environmental standards, explosive and toxic gases and oxygen) and to the specifications of standards EN 50270, EN 6052 (electromagnetic compatibility, ingress protection). OLCT 80 uses digital logic and software technologies.The sensors are protected and in compliance with the specifications of standard EN 51271.