65 Series
Fixed Gas Transmitter
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This product has been discontinued and is no longer available. In many cases we can still service and calibrate it. Talk to our team about spares or alternatives.
The 65 Series is a fixed sensor and 4-20 mA transmitter using electrochemical technology to detect a wide range of toxic gases at ppm and ppb levels, with a built-in test (BIT) function for CO sensors. It has been updated to the C-Guard digital series.
KEY BENEFITS
- Simple user-friendly calibration procedure
- Tamper-proof construction
- Large range of standard electrochemical sensors
- RFI/EMI resistant powder-coated protective case
- Gas concentration indicator
+ more in the Description tab below
Electrochemical Toxic Gas Detection with Built-In Test
The 65 Series uses the latest electrochemical technology for the detection of a large number of gases at ppm and ppb levels. GasTech’s unique CO sensor incorporates a built-in generator cell that produces a small amount of interference gas over the sensor, giving the user a confidence check that the sensor and system are operating correctly.
The Built-In Test (BIT) is activated simply by placing a magnet on the front cover; a successful test is confirmed when the green LED changes to red and back to green, after which the sensor returns to normal operation within 60 seconds. This feature is compatible with GasTech’s CO sensors.
Built into an RFI/EMI-resistant powder-coated tamper-proof case, the 65 Series offers a simple calibration procedure, a gas concentration indicator, 10-30 VDC operation and a 4-20 mA source output, with 10-year MTBF on the electronics.
Benefits
- Simple user-friendly calibration procedure
- Tamper-proof construction
- Large range of standard electrochemical sensors
- RFI/EMI resistant powder-coated protective case
- Gas concentration indicator
- 10-year MTBF on electronics
- 10-30 VDC operation
- 4-20 mA source output
- Built-in automatic sensor test (BIT) with confirmation
- -20 C to +50 C operating temperature
Sensor Technology
Electrochemical
Output
4-20 mA source
Operating Voltage
10-30 VDC
Operating Temperature
-20 C to +50 C
MTBF
10 years on electronics
Built-In Test
Magnet-activated BIT (CO sensors)
Ammonia (NH3) Range
0 to 100 ppm in 1 ppm increments
Carbon Monoxide (CO) Range
0 to 5000 ppm in 1 ppm increments
Chlorine (Cl2) Range
0 to 10 ppm in 0.1 ppm increments
Hydrogen Sulfide (H2S) Range
0 to 200 ppm in 1 ppm increments
Nitrogen Dioxide (NO2) Range
0 to 10 ppm in 0.1 ppm increments
Oxygen (O2) Range
0 to 25% in 0.1 %Vol increments
Ozone (O3) Range
0 to 2 ppm in 0.01 ppm increments
Enclosure
RFI/EMI resistant powder-coated, tamper proof
The BIT uses a built-in generator cell to release a small amount of interference gas over the CO sensor, confirming the sensor and system are working; the green LED turns red then back to green when the test passes.
It detects a wide range of toxic gases including ammonia, carbon monoxide, chlorine, hydrogen, hydrogen sulfide, nitric oxide, nitrogen dioxide, phosphine, sulfur dioxide, ozone and oxygen.
It provides a 4-20 mA source output and operates on 10-30 VDC.
The 65 Series operates from -20 C to +50 C.
Yes. It has been updated to GasTech's latest digital series, the C-Guard.
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