SCA Single-Channel Gas Detection Controller

Single Channel Gas Detector Control Unit

The Model SCA is a Single-Channel, wall mounted monitoring and control unit designed for installation in a safe area where there is no risk of the presence of potentially explosive gases.

  • Control unit with integral or remote sensor mounting option
  • Built-in audible and visual alarms
  • LCD backlit alphanumeric display
  • Ready for plant PLC or DCS integration with 3 dry relay contacts
  • Full calibration menu accessed by external push buttons
Request a Quote
Download Datasheet
Category: Tag:

Description

The Neutronics Model SCA Single-Channel Gas Detector Control Unit is a wall mounted monitoring and control unit designed for installation in a safe area where there is no risk of the presence of potentially explosive gases. It can be used with the following detector configurations:

  1. Fitted with an integral CO2 (IR), oxygen or toxic gas sensor for safe area use only
  2. Connected to a remote CO2 (IR), oxygen, or toxic gas detector head for safe area use only
  3. Fitted with an internal (or external) safety barrier and connected to a remote certified intrinsically safe (Ex ia) flammable, oxygen, or toxic gas detector head located in a hazardous area
  4. Connected to a remote flameproof (Ex d) certified flammable, oxygen, or toxic gas detector head located in a hazardous area.

For applications where the fixed gas detector is located in a hazardous area, a safety barrier must be used to limit the maximum voltage and current under a fault condition and prevent an incendive spark. Where suitable, the internal safety barrier can be installed in the control unit. This can be done at the time of manufacture or at a later time if the system is extended by the installation of an additional detector.

  • Product Specifications
  • Part Numbers
  • Gas List
Enclosure Rating: IP66 enclosureUniversal input/output isolating barriers
Display Size: Backlit alphanumericLCD display with Green/Red/Yellow LED (power on/Alarm/Fault)
Power: 115/230 VAC ±5% @ 50/60 Hz 20/28 VDC Opt. battery backup (8hr)
Analog Communications: 4-20 mA0-5 V
Relay Rating: 1 for audible 1 for visual alarms and 1 for fault condition
Ambient Temperature: -4 to 122°F (-20 to 50°C)
Humidity: O2: 0 to 99% RH (non-condensing) Toxic: 15 to 95% RH (non-condensing)
Product Dimensions (L×W×H): 9.8" x 10.55" x 7.87"
Product Weight: 8.8 lb
Sensor Type: Available with electrochemical,IR or Pellistor
Country of Origin: United Kingdom
Description Part Number
Single point control unit including standby battery S2-06-2501-00-0
Internal safety barrier S2-06-2503-00-0
SCA with integral flammable LEL detector, Pellistor sensor S2-06-2503-00-0
SCA with integral oxygen deficiency detector, electrochemical sensor S2-06-2004-43-0
SCA with integral carbon monoxide detector, electrochemical sensor S2-06-2513-00-0
SCA with integral hydrogen sulfide detector, electrochemical sensor S2-06-2514-00-0
SCA with integral hydrogen chloride detector, electrochemical sensor S2-06-2517-00-0
SCA with integral chlorine detector, electrochemical sensor S2-06-2519-00-0
SCA with integral ammonia detector, electrochemical sensor S2-06-2004-57-0
SCA with integral carbon dioxide detector, infrared sensor S2-06-2525-00-0
SCA with integral flammable detector, infrared sensor S2-06-2526-00-0