4-20 mA gas detector transmitter - CTX300
The CTX300 transmitter is a fixed gas detector, with a 4-20 mA analog linear output for the detection of toxic, refrigerant (refrigerant leak), solvent, or asphyxiating (CO2, Helium or lack of oxygen) gases.
With a very large number of interchangeable available sensor, the CTX 300 gas transmitter covers most tertiary or industrial applications in safe areas, not classified as ATEX. Optionally a digital display can be integrated into the detector for local measurement indication. Detailed description
Gas detector-transmitter
Particularly well-suited for laboratories, research centers, agri-food industries or medical sector (clean rooms, MRI, cryonics cells…), the CTX300 gas detector-transmitter with 4-20 mA analog linear output is well known in the gas detection sector. As it is compact, rugged and user-friendly, this gas detector is highly versatile.
Conçu pour détecter l'oxygène (ou plutôt le manque d'oxygène), certains gaz rares (argon, hélium), les gaz toxiques, la plupart des gaz réfrigérants et certains composés organiques volatils (COV), le détecteur gaz CTX300 dispose d'une large gamme de cellules pré-calibrées en usine et répond aux besoins de la plupart des applications industrielles en zones non classées (zones NON ATEX).
CTX300 gas detector assets
- Detection of toxic gases, oxygen and major freons
- Analog transmitter, 4-20 mA output, optional backlit display
- Pre-calibrated sensors
- Highly resistant to environmental elements, built-in sensor for enhanced protection
- Available in electrochemical, infrared or semiconductor versions
- Reduced maintenance: factory pre-calibrated interchangeable CTX300 sensor
- Use of polycarbonate and stainless steel mounting hardware, resistant to corrosive agents (H2S, HCl, spray…) and high mechanical resistance
CTX300 detector technical specifications
- Gas detection: C2H4O, Cl2, ClO2, CO, CO2, COCl2, H2S, HCl, HCN, He, HF, NH3, NO, NO2, O2, O3, PH3, SiH4, SO2, VOC (methylene chloride, methyl chloride , toluene, trichloroethylene, xylene, ethanol), freons (R12, R22, R123, R134a, R142b, R11, R23, R141b, R143a, R404a, R507, R410a, R32)
- Enclosure: Polycarbonate housing
- Function: 4-20 mA analog output detector-transmitter
- Display: Highly visible backlight display unit (on option)
- Indicator lights (on CTX300 display version): in operation: green, failure / maintenance: orange
- Link:
- CTX 300 without display unit: 2 wires
- CTX 300 with display unit, CO2 and semiconductor versions: 3 wires - Cable inlet: Between 6 and 11, gland PG9
- Power supply: 15 to 32 VDC
- Power consumption:
- CTX 300 without display unit: 60 mA
- CTX 300 without display unit: 110 mA
- CTX 300 without display unit equipped with semiconductor sensor: 100 mA - Sealing: IP 54, NEMA 3 & 3R
- Dimensions: 130 x 136 x 69 (l x h x d) in mm
- Certification: safe area only
CTX300 gas transmitter main applications
- Laboratories and research centers
- Pharmaceutical industry
- Agri-food industries, refrigerant systems
- Medical sector, Secteur médical, MRI rooms, cryonics cells
- Wine-growing sector, wineries, breweries, cellars
Manufacturer | Oldham |
---|

Worldwide delivery
International delivery in compliance with international transport regulations (IATA, AMDG, ARD).
On demand "lithium" and "dangerous goods" regulated packaging.
Learn more about our worldwide shipping solutions.




-
OLCT100 fixed gas detector - ATEX SIL2 combustible, toxic & refrigerant gasStarting at $792.62
-
Gas transmitter KwikSense with display, output 4-20mA and relaysStarting at $745.43
-
MX32 gas controller (up to 8 transmitters)Starting at $948.14
-
MX43 gas detection controller (up to 32 transmitters)Starting at $1,772.94