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GfG EC 35 Fixed Gas Transmitter, Chlorine Dioxide (ClO2), Display - 3581-001

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GfG EC 35 Fixed Gas Transmitter, Chlorine Dioxide (ClO2), Display - 3581-001
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GfG EC 35 Fixed Gas Transmitter, Chlorine Dioxide (ClO2), Display - 3581-001

GfG EC 35 Fixed Gas Transmitter, Chlorine Dioxide (ClO2), Display - 3581-001


3581-001 EC 35 Fixed Gas Transmitter, Chlorine Dioxide (ClO2), Display by GfG

Remote Transmitters for Oxygen and Toxic Gases

The EC 30 is an advanced transmitter for the detection of toxic gases and oxygen levels. This smart area monitor has an aluminum explosion proof housing with a stainless steel sensor cover that makes the EC 30 series suitable for the harshest environments.

Simple and effective

Once you power up the units, they will accurately display values on the large LCD and transmit a linear 4-20 mA signal to any GfG controller. AutoCal automatic calibration and maintenance is done effortlessly through push buttons or via a digital remote control connection. Smart sensors allow the user to easily change ranges or gas types in the field without a need for additional programming. The EC 36 is equipped with onboard relays for two alarm points and one sensor fault for local connection and activation or deactivation of external devices like alarms, fans, auto dialers etc.

Digital display / control connection

The digital connection allows display of readings, non-intrusive maintenance and AutoCal calibration activation to be done locally or from a distance.


  • Robust industrial design
  • Fully-automatic one button calibration adjustment
EC 30 Specifications:
Detection principle Electrochemical
Detection method Diffusion
Response time T90 <5 sec. (depending on gas)
Expected sensor life 2 years (depending on gas)
Display 4 digit LCD (EC 36 backlit)
Power, alarm, and fault LEDs (EC 36
Power supply 24 VDC / 200 mA
Output signal Linear 4-20 mA
Signal connection 3 shielded wire x 18 AWG <1,000 ft. Up to 100 ft. remote interface
Relays (EC 36) 2 alarm points, 1 fault – voltage free
Voltage: 250 VAC 50/60 Hz or 250 VDC maximum
Current: 4 A AC/DC maximum
Temperature range +5 to +115°F / -15 to +46°C
Humidity range 15 to 96% rh
Pressure range 920 to 1,080 hPa
Housing Aluminum explosion proof stainless steel sensor housing
Housing approvals Class 1, Groups, B, C, D
Type 4X (IP 64)
Available models EC 35 - LCD
EC 36 - Backlit LCD, relays and LED’s
Weight 3.5 pounds (1587 g)
Dimensions 4.5x4.9x3.7 inches (115x125x95 mm) (HxWxD)
Accessories Remote display / control

Gases and Ranges:
Gases Detection ranges*
Ammonia (NH3) 0-200 or 1,000 ppm
Carbon monoxide (CO) 0-500 or 2,000 ppm
Chlorine (Cl2) 0-50 or 250 ppm
Chlorine Dioxide (ClO2) 0-1.0 ppm
Hydrogen (H2) 0-2,000 ppm or 0-4% volume
Hydrogen Chloride (HCL) 0-200 ppm
Hydrogen Cyanide (HCN) 0-200 ppm
Hydrogen Sulfide (H2S) 0-200 or 1,000 ppm
Nitrogen Dioxide (NO2) 0-50 or 200 ppm
Oxygen (O2) 0-25% volume
Sulfur Dioxide (SO2) 0-50 or 500 ppm

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