Crowcon Sensitron PL4+D Gas Control Unit

Code: STPL4+D
  • For DIN-rail mounting
  • Ideal for small plants with up to 12 detectors
  • Backlit LCD display

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PL4+D, for DIN-rail mounting, is an innovative gas control unit ideal for small plants with up to 12 detectors.

Monitor four gas detectors connected directly to the control panel (4-20mA) and an additional 8 detectors via remote 8-input cards STG/IN8S. Every input can be configured for a different kind of gas to detect both flammable and toxic compounds, refrigerant gases, and Oxygen depletion or enrichment.

The panel can manage 5 output relays aboard the panel and an additional 32 via STG/OUT16S+STG/8REL.

The backlit LCD display assures a precise indication of the measured gas concentration and alarm set points. Mode status LEDs visually indicate alarm levels, fault and power-on. An internal buzzer is provided for an audible alarm in case of alarm or fault.

Order Information

STPL4+
STPL4+D 4 channel triple threshold DIN rail control panel. Possibility to add additional 8 inputs via STG/IN8S card or have the detectors connected to the RS485 bus. The panel comes complete with 1 USB port for PC connection. Power supply: 24 Vdc
PL4+DIN ACCESSORIES
STG/IN4-OUT4-S1 Remote module with 4 inputs 4-20mA and 4 output relays for MULTISCAN
STG/IN8S High-safety 8-input remote module with improved performance
STG/OUT16S High-safety 16-output remote module (Open collector type) with improved performance.
STG/8REL Plug and play relay board to be connected to STG/OUT16 to provide 8 relay outputs.
AL09 24 Vdc power supply for STPL4+D & STMTS/RTU
STG/IPBOX IP65 ABS box for STPL4+D & STMTS/RTU

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    Title Size
    PL4+D Datasheet 3 MB

    Additional information

    Weight 0.190 kg

    Specifications

    Electrical data
    Power supply 12 -24 Vdc
    Inputs 4 analogue 4-20mA inputs, up to 12 by using the optional modules:
    IN4-OUT4: addition of 4 analogue inputs
    IN8S: addition of 8 analogue inputs
    Outputs 5 relays: 1 associated to fault, 4 programmable
    Up to further 32 outputs can be added:
    IN4-OUT4: addition of 4 relays
    OUT16: addition of 16 O/C outputs (convertible into relays with the 8REL module)
    Serial ports 1 x RS485 for field installation
    1 x USB for programming, supervision and firmware updating
    Communication protocol Galileo or Modbus
    Absorption 100 mA at 24 Vdc (without connected loads)
    Relays contact ratings 10A at 250V relays of panel board
    16A at 250V relays of IN4-OUT4 module and 8REL module
    Functionalities
    Programming Configuration with Sensitron software
    Operating levels 3, with numerical password customizable
    Set / Unset detectors Possibility of unset one or more channels for field maintenance
    Test Possibility of channels test field
    Supervision Efficient Modbus protocol for system supervision
    Event log The event log can be visualised from the gas panel or by the software
    Date and time Internal clock with backup to keep the date and time even after a shutdown
    Visual indications LCD display 4raws x 16columns
    10 status LEDs
    Acoustic indications Buzzer 60 dB at 1m
    Front panel buttons Keypad with 4 shift buttons and ENTER button
    Environmental conditions
    Storage temperature -20 / +60°C
    Operating temperature 0 / +50°C
    Operating humidity 15 / 85% RH non condensing
    Box
    Material ABS
    Dimensions 9 DIN module
    (158.5 x 90.0 x 60.0 mm)
    Weight 400 g
    IP Grade
    Compliance
    EMC EN 61000-6-3:2007 + A1:2011; EN 50270:2015
    ATEX ATEX Directive 2014/34/UE
    EN IEC 60079-0:2018
    EN 60079-29-1:2016

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