Fixed Gas Monitors 2620 (Weather Proof)


Fixed Gas Monitors 2620 (Weather Proof)

The Monitor is a Single Gas Multi-purpose monitor that combines simplicity and high performance in a low cost low maintenance package.

The rugged NEMA 4X or 7X assembly is suitable for a variety of industrial, commercial and general purpose applications to monitor HAZARDOUS, Toxic gases or Oxygen iri Process Fuel Gas or Ambient Air.

  • Fast and accurate response
  • Long Life Applications Specific Gas Sensor Tech
  • Solid State Electronics
  • Continuous Monitoring
  • Two Alarm Levels
  • Fail Safe Protection
  • Recorder Output
  • Integra or Remote Sensing Sensor
  • Un-attended Operation
  • Sampling by Diffusion or sample Draw Pump
  • Flexibility to fit your application needs
  • Interfaces with Industry Standard Transmitters

Model 2620 single channel digital control modules are designed to supervise and display the status of a single integral or remote (2620 R) sensor assembly. Model 2620 is housed in a NEMA AX wall mount enclosure or Ex- proof enclosure.

Model 2620R Single Channel controllers interface with industry standard two or three wire 4-20 mA sensor or other standard voltage / current sensor transmitters and provide the user with concentration display and two independent adjustable alarm levels. The 3 J4 digit LCD or Alphanumeric LCD display can read the concentration. LEDs on the front panel provide indication of all three alarms.

The alarm relays can be programmed to be either latching or non-latching and to activate either as a rising or failing alarm. The relays are SPDT Form C type rated at 5 Amps, to provide direct alarm action, reducing the need for interposing relays. Local Alarm devices can be connected to the configurable on board alarms. The Fail Safe Supervisory provides a reliable indication that the Monitor is fully operational. I he “hail Safe” design monitors the input power and status of the power supply for the amplifiers. A failure of any one of these functions illuminates a “Fault” Light Emitting Diode.

Sensor Technologies

The HEART of any Analytical system is the SENSOR. It is the most critical component in overall system performance. Because no single sensor technology is ideal for all applications, ENDEE offers TEN different sensor technologies.

This capability is mandatory in today’s complex industrial market. Command of each of these technologies enables us to “FITTHE PRODUCTTO THE APPLICATION”, and assure long-term service and reliability & optimal performance in every application.


Minimum Resolution0.1 or 1 unit of the range.
IndicationDigital Continuous
Sensor TechnologyAppropriate to Application
Detection MethodDiffusion / Sample Draw Pump
Relative Humidity0 – 99% Non-condensing
Response Time(90% in 10 seconds)
Signal Output Recorder0-IV, 4-20 mA (Optional)
Alarm SettingHigh and Very High Adjustable over full range
Alarm CircuitsSPDT 5 AMP 220V Contacts
ControlsZero, Span, Alarm Setting
Power Source110V or 220V 50 Hz. 24 VD C (Optional)
DimensionsModel 2620 – 250 X 200 X 100mm

Gas Specification

Hydrogen0- -100 to 2000 PPMHydrogen Sulphide0-5 to 2000 PPM
Chlorine0- • 3 to 2000 PPMNitric Oxide0-100 1000 PPM<
Bromine0- • 3 to 2000 PPMNitrogen Dioxide0-30 to 100 PPM
Fluorine0- •1 to 10 PPMAmmonia0-300 PPM
Hydrogen Chloride0- •5 to 15 PPMOrg. Solvents/VapoursDepending on Solvents
Hydrogen Fluoride0- • 5 to 15 PPMOxygen0 – 30% to 100%
Hydrogen Cyanide0 •10 to 100 PPMLPG/CNG/H20-100%LEL
Carbon Dioxide0- • 05% to 20%Combustible Gases0 -100% V/V
Sulphur Dioxide0- •10 to 2000 PPM


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