TRANSMITTERS OLCT80

OLCT 80 d or id (with intrinsic safety sensor block) n II2GD n For combustible and toxic gases and oxygen n Fitted with pre-calibrated sensor blocks n Up to 9 cable-glands (powers/inputs/outputs) n Measurement and alarms visualisation

MODULAR AND FLEXIBLE

OLCT80 :dimensions and weights n IR bloc version :367 x (h) 189 x (p) 120 mm n Weights: # 2.95Kgs LEL, Tox and O 2 versions n # 4.78Kgs IR bloc version.

OLCT 80 (indications) Alarms 1 and 2 flashing/fixed alphanumeric readout, (units, type of gas, internal parametres, etc..) Measurement Remote control IR detector ON/OFF Trouble alarm

Fitted with a memory: 3 files (FIFO 2O max.) : last events ( hour and date). Last measurements ( hour and date). Histograms of calibrations and drifts. LOCAL INDICATIONS… OLCT 80

OLCT 80: analog/digital output signals n 4/20 mA with smart signal processing: n Analog signal 0…4-20…25 mA or 1/0 n RS485 (1200bauds,38kb Modbus ASCII for MX62) n The RS485 link gives access to: n The measurement, status and default n Internal relays

The relays are 2A /250VAC ( with potentiel free SPDT contacts) Relays are actuated either : - directly by the sensor electronics of the sensor ( programmable) or supplementary inputs - from the MX62 central unit, - or the control unit system to which connected the sensor is connected. OLCT 80:relay option

The relays can be : - in FAIL SAFE or Negative safety - 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 MX62 or the control system to which the sensor is connected. OLCT 80:relay option

OLCT20 OLCT IR 0-3V 4-20mA 0-3V 4-20mA Block of cell Analog input N° 1 Analog input N° 2 AL1 AL2 CENTRAL UNIT MX62 Fault gestion MX62 protocole FAULT RELAY RELAY 2 RELAY 1 Positive safety or not internal or external ( MX62) actions programmable alarm levels Programmable actions manual or automatic acknowledgeme nt Parametres CONTACTS OF FAULT RELAY CONTACTS OF RELAY 2 CONTACTS OF RELAY 1

INCLUDED

OLCT 80 Precalibrated sensor block « OLCT20 » « is» range accepted Remore sensor version (local display) OR

OLCT 80 / IR Fitted with adaptor

MANY POSSIBILITIES Cell block type « OLCT… » RS485 (M20) input Power supply (M25) input RS485 (M20) output Power supply (M25) output relays (M20), contacts TOR output (M20) Option

OLCT 80 n For classified explosion risk zones n It can be used such as a local stand alone fixed unit. INCLUDED

OLCT 80 :extremely low energy requirements Power supply : from 11 to 28Vcc Tox, O 2. : from 16 to 28 Vcc (LEL + OLCT IR) consumptions* : # < 10 mA Tox et O 2 versions : # < 30 mA LEL version : # < 190 mA IR version. (estimation) This major advantage means that more sensors can be connected, with smaller wire cross- sections and over greater distances. * about: without relays, without 4…20mA and 10% of back-light

INCLUDED

ex: the loop allows a gestion of 16 adresses ( lenght of 1.2 to 4.8 Kms * Section 1 Section 2 < 1.2 Kms * Example with more than 3 TOX. sensors. Power supply wiring :2x0,75mm² + network wiring: 1paire of 0.32 mm². OLCT 80 local power supply.

µC A µC B INTERFACE RS485 M X 62 adapter module for digital adressable sensors in a loop Bus loop RS485 ALIM 4 adapter modules per MX62 16 adresses per loop 16 adresses/module

Non-intrusive dialogue via intrinsically safe IR remote control n Without opening, an IR remote control allows a remote dialogue with the sensor, during operations of maintenance or configuration. Marking : IR20 CE 0080 II 2 G EEx ia IIC T4 INERIS 04ATEX0011X IR remote control « IR20 » Receptor

accessible informations via the remote control n Measurements from the sensor block, the two 4-20 mA auxiliary inputs. n Last MIN et MAX measurements since the last calibration n calibrations « ZERO » and « SPAN » of 3 inputs (sensor, 4-20 mA, binary …) n Alarm relays programming n alarm levels programming ….. OLCT 80