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Oldham CTX 300 Oldham CTX 300

Oldham CTX 300

When hazardous levels of toxic gases or oxygen threaten the safety of an unclassified area, the Oldham CTX 300 oxygen detector can satisfy the most demanding safety requirements.

Key Features

  • Detects O2, CO2, toxic and refrigerant gases
  • 4-20 mA output analog transmitter with optional backlit display
  • Plug-in and pre-calibrated sensors
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Please note - Product designs and specifications are subject to change without notice. The user is responsible for determining the suitability of this product.

  • • Available with electrochemical, infrared or semi-conductor sensors
  • • More than 30 different sensors are available to detect most toxic gases in the industry
  • • Available in an infrared version for CO2
  • • EN14624 compliant with regards to R134a monitoring
  • • Oxygen detector for commercial or industrial applications in unclassified areas

The CTX 300 detector is designed to detect oxygen, toxic and refrigerant gases, and also uses a new sensor for CO2 detection over three different ranges: 0-5000 ppm, 0-5% vol. and 0-100% vol.

The CTX 300 transmits data in record time. With a wide range of sensor options, it has the flexibility to protect many potentially hazardous environments.

Maintaining the unit is easy with pre-calibrated sensors and an optional LCD display.

CTX 300 WITHOUT DISPLAY - Electrochemical versions
  • CTX300-243 CTX 300 ASH3, without display, range 0-1ppm

  • CTX300-247 CTX 300 CH2O, without display, range 0-50ppm

  • WC30-248 CTX 300 C2H4O, without display, range 0-100ppm

  • WC30CL2 CTX 300 Cl2, without display, range 0-10ppm

  • WC30CLO CTX 300 ClO2, without display, range 0-3ppm

  • WC30COA CTX 300 CO, without display range 0-100ppm

  • WC30COB CTX 300 CO, without display, range 0-300ppm

  • WC30COC CTX 300 CO, without display, range 0-1000ppm

  • WC30COD CTX 300 CO, without display, range 0-1 %

  • WC30COE CTX 300 CO, without display, range 0-10 %

  • WC30CCL CTX 300 COCl2, without display, range 0-3 ppm

  • WC30OET CTX 300 Ethylene Oxyde, without display, range 0-30ppm

  • WC30F2A CTX 300 F2, without display, range 0-1ppm

  • WC30H2A CTX 300 H2, without display, range 0-2000ppm

  • WC30H2B CTX 300 H2, without display, range 0-2 %

  • WC30HSA CTX 300 H2S, without display, range 0-30ppm

  • WC30HSB CTX 300 H2S, without display, range 0-100ppm

  • WC30HSC CTX 300 H2S, without display, range 0-1000ppm

  • WC30HLA CTX 300 HCl, without display, range 0-30ppm

  • WC30HLB CTX 300 HCl, without display, range 0-100ppm

  • WC30HNA CTX 300 HCN, without display, range 0-10ppm

  • WC30HNB CTX 300 HCN, without display, range 0-30ppm

  • WC30HFA CTX 300 HF, without display, range 0-10ppm

  • WC30NH3 CTX 300 NH3, without display, range 0-100ppm

  • WC30NH1 CTX 300 NH3, without display, range 0-1000ppm

  • WC30NH2 CTX 300 NH3, without display, range 0-5000ppm

  • WC30NH3F CTX 300 NH3 for low temperature application (-40°C/-40°F), without display, range 0-100ppm

  • WC30NH1F CTX 300 NH3 for low temperature application (-40°C/-40°F), without display, range 0-1000ppm

  • WC30NOA CTX 300 NO, without display, range 0-100ppm

  • WC30NOB CTX 300 NO, without display, range 0-300ppm

  • WC30NOC CTX 300 NO, without display, range 0-1000ppm

  • WC30N2A CTX 300 NO2, without display, range 0-10ppm

  • WC30N2B CTX 300 NO2, without display, range 0-30ppm

  • WC30N3B CTX 300 NO2, without display, range 0-100ppm

  • WC30O2F CTX 300 O2, with standard 2 year sensor lifetime, without display, range 0-30 %, -20°C to +50°C

  • WC30O2G CTX 300 O2, with long life 5 year sensor lifetime, without display, range 0-30 %, -40°C to +50°C

  • WC30O2S CTX 300 O2, without display, range 0-100 % vol

  • B301312 CTX 300 O2 Special for Helium enrichment, without display, range 0-30% vol

  • WC30O3A CTX 300 O3, without display, range 0-1ppm

  • WC30PH3 CTX 300 PH3, without display, range 0-1ppm

  • 6513584 CTX 300 PH3, without display, range 0-1000ppm

  • WC30SIA CTX 300 SiH4, without display, range 0-50ppm

  • WC30SOA CTX 300 SO2, without display, range 0-10ppm

  • WC30SOB CTX 300 SO2, without display, range 0-30ppm

  • WC30SOC CTX 300 SO2, without display, range 0-100ppm

CTX 300 WITHOUT DISPLAY - Semi-Conductor versions
  • CTX300-659 CTX 300 analog transmitter without display, 0-500ppm 2-Butanone (MEK)

  • CTX300-507 CTX 300 analog transmitter without display, 0-500ppm Dichloromethane (Methylen chloride)

  • CTX300-508 CTX 300 analog transmitter without display, 0-500ppm Chloromethane (Methylchloride)

  • CTX300-656 CTX 300 analog transmitter without display, 0-500ppm Ethanol

  • CTX300-654 CTX 300 analog transmitter, without display, 0-5000ppm Ethanol

  • CTX300-510 CTX 300 analog transmitter, without display, 0-2000ppm FX56

  • CTX300-662 CTX 300 analog transmitter, without display, 0-1,000ppm HFO-1234yf

  • CTX300-525 CTX 300 analog transmitter, without display, 0-1,000ppm HFO-1234ze

  • CTX300-658 CTX 300 analog transmitter without display, 0-500ppm Isopropanol

  • CTX300-505 CTX 300 analog transmitter, without display, 0-1% volume R11

  • CTX300-500 CTX 300 analog transmitter, without display, 0-1% volume R12

  • CTX300-501 CTX 300 analog transmitter, without display, 0-2000ppm R22

  • CTX300-506 CTX 300 analog transmitter, without display, 0-1% volume R23

  • CTX300-515 CTX 300 analog transmitter, without display, 0-1000ppm R32

  • CTX300-509 CTX 300 analog transmitter, without display, 0-2000ppm R123

  • CTX300-502 CTX 300 analog transmitter, without display, 0-2000ppm R134A

  • CTX300-511 CTX 300 analog transmitter, without display, 0-2000ppm R143A

  • CTX300-521 CTX 300 analog transmitter, without display, 0-1000ppm R245FA

  • CTX300-512 CTX 300 analog transmitter, without display, 0-2000ppm R404A

  • CTX300-517 CTX 300 analog transmitter, without display, 0-1000ppm R407C

  • CTX300-519 CTX 300 analog transmitter, without display, 0-1000ppm R407F

  • CTX300-518 CTX 300 analog transmitter, without display, 0-4000ppm R408A

  • CTX300-514 CTX 300 analog transmitter, without display, 0-1000ppm R410A

  • CTX300-524 CTX 300 analog transmitter, without display, 0-4000ppm R422D

  • CTX300-520 CTX 300 analog transmitter, without display, 0-4000ppm R434A (RS45)

  • CTX300-513 CTX 300 analog transmitter, without display, 0-2000ppm R507

  • CTX300-661 CTX 300 analog transmitter, without display, 0-500ppm Styrene

  • CTX300-657 CTX 300 analog transmitter without display, 0-500ppm Toluene

  • CTX300-652 CTX 300 analog transmitter, without display, 0-2000ppm Toluene

  • CTX300-655 CTX 300 analog transmitter, without display, 0-500ppm Trichlorethylene

  • CTX300-660 CTX 300 analog transmitter without display, 0-500ppm Xylene

  • CTX300-653 CTX 300 analog transmitter, without display, 0-2000ppm Xylene

CTX 300 WITHOUT DISPLAY - Infrared versions
  • WC30CO2A CTX 300 CO2, without display, range 0-5000ppm

  • WC30CO2B CTX 300 CO2, without display, range 0-5.00 % vol

  • WC30CO2C CTX 300 CO2, without display, range 0-100 % vol

CTX 300 WITH DISPLAY - Electrochemical versions
  • WC3ACL2 CTX 300 Cl2, with display, range 0-10ppm

  • WC3ACLO CTX 300 ClO2, with display, range 0-3 ppm

  • WC3ACOA CTX 300 CO, with display, range 0-100ppm

  • WC3ACOB CTX 300 CO, with display, range 0-300ppm

  • WC3ACOC CTX 300 CO, with display, range 0-1000ppm

  • WC3ACOD CTX 300 CO, with display, range 0-1 %

  • WC3ACOE CTX 300 CO, with display, range 0-10 %

  • WC3ACOF CTX 300 CO/H2 null, with display, 2-wire version, range 0-200ppm

  • WC3ACCL CTX 300 COCl2, with display, range 0-3 ppm

  • WC3AOET CTX 300 Ethylene Oxyde, with display, range 0-30ppm

  • WC3AF2A CTX 300 F2, with display, range 0-1ppm

  • WC3AH2S CTX 300 H2, with display, range 0-2000ppm

  • WC3AH3B CTX 300 H2, with display, range 0-4% vol

  • WC3AH2B CTX 300 H2, with display, range 0-2% vol

  • WC3AHSA CTX 300 H2S, with display, range 0-30ppm

  • WC3AHSB CTX 300 H2S, with display, range 0-100ppm

  • WC3AHSC CTX 300 H2S, with display, range 0-1000ppm

  • WC3AHLA CTX 300 HCl, with display, range 0-30ppm

  • WC3AHLB CTX 300 HCl, with display, range 0-100ppm

  • WC3AHNA CTX 300 HCN, with display, range 0-10ppm

  • WC3AHNB CTX 300 HCN, with display, range 0-30ppm

  • WC3AHFA CTX 300 HF, with display, range 0-10ppm

  • WC3ANH3 CTX 300 NH3, with display, range 0-100ppm

  • WC3ANH1 CTX 300 NH3, with display, range 0-1000ppm

  • WC3ANOD CTX 300 NO, with display, range 0-30ppm

  • WC3ANOA CTX 300 NO, with display, range 0-100ppm

  • WC3ANOB CTX 300 NO, with display, range 0-300ppm

  • WC3ANOC CTX 300 NO, with display, range 0-1000ppm

  • WC3AN2A CTX 300 NO2, with display, range 0-10ppm

  • WC3AN2B CTX 300 NO2, with display, range 0-30ppm

  • WC3AO2F CTX 300 O2, with standard 2 year sensor lifetime, with display, range 0-30 % vol, -20°C to +50°C

  • WC3AO2G CTX 300 O2, with long life 5 year sensor lifetime, with display, range 0-30 % vol, -20°C to +50°C

  • WC3AO2S CTX 300 O2, with display, range 0-100% vol

  • B301072 CTX 300 O2 Special for Helium enrichment, with display, range 0-30% vol

  • WC3AO3A CTX 300 O3, with display, range 0-1ppm

  • WC3ASOA CTX 300 SO2, with display, range 0-10ppm

  • WC3ASOB CTX 300 SO2, with display, range 0-30ppm

  • WC3ASOC CTX 300 SO2, with display, range 0-100ppm

  • WC3APH3 CTX 300 PH3, with display, range 0-1ppm

CTX 300 WITH DISPLAY - Infrared versions
  • WC3ACO2A CTX 300 CO2, with display, range 0-0.50 % vol

  • WC3ACO2B CTX 300 CO2, with display, range 0-5.00 % vol

  • WC3ACO2C CTX 300 CO2, with display, range 0-100 % vol

CTX 300 Accessories
  • NP300GB User manual CTX 300 in English language, hard copy

  • NP300FR User manual CTX 300 in French language, hard copy

  • 6331141 Calibration cup (all detectors except OLCT IR, all gases)

  • 6331171 Calibration cup for semi-conductor CTX 300 versions

  • 6799188 Gas introduction head for CTX 300 CO2 (delivered before July 2015)

  • 6335918 Humidifier kit for transmitters with semi-conductor sensor

  • 6322420 CEX/CTX 300 , OLC(T)40, 50, 60 and 100 ceiling-mount

  • 6327906 Remote calibration cup for CEX/CTX 300

  • 6327905 Sampling cup for CEX/CTX 300 (except CO2 variants shipped prior July 2015)

  • 6323607 Gas collector for CEX/CTX300 series (except CO2 variants shipped prior July 2015)

  • 6123716 Sunshield for 300 series, OLC(T)40, 50, 60, 80 and 100

  • 6123717 Shock-guard protector for OLC(T)10 and 300 series

  • 6797902 300 series wall-mount protector

  • 6331166 Splash guard for CEX and CTX300 (except CO2 variants shipped prior July 2015)

  • 6335953 PTFE water barrier for CEX/CTX 300

  • 6793718 CEX300, OLC(T)50, 100, universal mounting Adapter Plate

  • 6793322 Universal pitot tube with DN 80 flange (requires a sampling cup)

  • 65920 Heating protective cover with a single resistor 100W