Oldham OLCT 20 & OLC 20

Code: OLCT 20
  • Indoor or Outdoor
  • Toxic and Combustible
  • Precalibrated

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This range is now obsolete alternative here

Oldham OLCT 20 by Teledyne, designed for continuous monitoring of flammable and toxic gases. Housed in stainless steel, detectors were resistant to dust, moisture and corrosion, classified IP 66. Suitable for indoor and outdoor use.  Aimed as a cost-effective solution, with a range of gases selectable.

OLCT 20 XP transmitter had a choice of Catalytic or Electrochemical sensors. The Intrinsically Safe versions were for Toxic and Oxygen detection only. Both models attach to the housing using an M25 or 3/4” NPT thread. Maintenance was simple, sensors unscrew for precalibrated replacements or existing sensors can be calibrated outside the zoned area and refitted.

The OLC 20 was a Combustible transmitter with a Wheatstone bridge output mV. Replaced by the OLC100. Remote sensor model OLC 20D is also no longer available, the current equivalent model is OLCT 60.

Features

  • Small footprint 800 g, dimensions L 130 x D 60
  • Indoor or Outdoor applications
  • 4-20 mA output or Wheatstone bridge
  • Reliability is proven
  • SIL2 suitable for combustible gases and O2
  • Operating Temperature OLCT 20:  -25°C to +60°. OLC 20:  -25°C to +70°C
  • High-temperature version allows operation at 200°C.

Applications:  Petrochemical,  Steel Mills, Refrigeration, Water Treatment, Chemical and Pharmaceutical industries.

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Title Size
OLCT20 OLC20 2 MB
OLCT20 OLC20 Manual 1 MB

Additional information

Weight0.09 kg

Ordering Information

Transmitter Oldham OLCT 20 XP version – ATEX II 2GD – 3/4″NPT

WC2EX3A – catalytic bead 0-100% LEL
WC2EC3A – Catharometric sensor – 0-100% vol CH4
WC2C13A – CO – range 0-100ppm
WC2C33A – CO – range 0-300ppm
WC2C43A – CO – range 0-1000ppm
WC2C53A – CO – range 0-1000ppm (null H2)
WC2H03A – H2 – range 0-2000ppm
WC2H13A – H2S – range 0-30ppm
WC2H23A – H2S – range 0-100ppm
WC2H33A – H2S – range 0-1000ppm
WC2A13A – NH3 – range 0-100ppm
WC2A23A – NH3 – range 0-1000ppm
WC2NO3A – NO – range 0-100ppm
WC2N13A – NO – range 0-300ppm
WC2N33A – NO – range 0-1000ppm
WC2O23A – O2 – range 0-30 % vol

Transmitter OLCT 20 IS version – ATEX II 1GD – 3/4″ NPT

WC2AS3I – ASH3 – range 0-1ppm
WC2JA3I – Cl2 – range 0-10ppm
WC2DC3I – CIO2 – range 0-3 ppm
WC2C13I – CO – range 0-100ppm
WC2C33I – CO – range 0-300ppm
WC2C43I – CO – range 0-1000ppm
WC2C53I – CO range 0-1000ppm (null H2)
WC2GE3I – COCl2 – range 0-1ppm
WC2ET3I – ETO – range 30ppm
WC2H03I – H2 – range 0-2000ppm
WC2H13I – H2S – range 0-30ppm
WC2H23I – H2S – range 0-100ppm
WC2H33I – H2S – range 0-1000ppm
WC2HF3I – HF – range 0-10ppm
WC2L13I – HCL – range 0-30ppm
WC2L23I – HCL – range 0-100ppm
WC2Y13I – HCN – range 0-10ppm
WC2Y23I – HCN – range 0-30ppm
WC2HYL3I N2H4 – range 0-1ppm
WC2HY3I N2H4 – range 0-100ppm
WC2A13I NH3 – range 0-100ppm
WC2A23I NH3 – range 0-1000ppm
WC2NO3I NO – range 0-100ppm
WC2N13I NO – range 0-300ppm
WC2N33I NO – range 0-1000ppm
WC2N23I NO2 – range 0-10ppm
WC2N43I NO2 – range 0-30ppm
WC2O23I O2 – range 0-30 % vol
WC2O33I O3 – range 0-1ppm
WC2PH3I PH3 – range 0-1ppm
WC2SI3I SiH4 – range 0-50ppm
WC2SO3I SO2 – range 0-10ppm
WC2S13I SO2 – range 0-30ppm
WC2S23I SO2 – range 0-100ppm

Transmitter OLCT 20 XP version – ATEX II 2GD – M25

WC2EXMA catalytic bead 0-100% LEL
WC2ECMA Catharometric sensor – 0-100% vol CH4
WC2C1MA CO – range 0-100ppm
WC2C3MA CO – range 0-300ppm
WC2C4MA CO – range 0-1000ppm
WC2C5MA CO – range 0-1000ppm (null H2)
WC2H0MA H2 – range 0-2000ppm
WC2H1MA H2S – range 0-30ppm
WC2H2MA H2S – range 0-100ppm
WC2H3MA H2S – range 0-1000ppm
WC2A1MA NH3 – range 0-100ppm
WC2A2MA NH3 – range 0-1000ppm
WC2NOMA NO – range 0-100ppm
WC2N1MA NO – range 0-300ppm
WC2N3MA NO – range 0-1000ppm
WC2O2MA O2 – range 0-30 % vol

Transmitter OLCT 20 IS version – ATEX II 1GD – M25

WC2ASMI ASH3 – range 0-1ppm
WC2JAMI Cl2 – range 0-10ppm
WC2DCMI CIO2 – range 0-3 ppm
WC2C1MI CO – range 0-100ppm
WC2C3MI CO – range 0-300ppm
WC2C4MI CO – range 0-1000ppm
WC2C5MI CO range 0-1000ppm (null H2)
WC2GEMI COCl2 – range 0-1ppm
WC2ETMI ETO – range 30ppm
WC2H0MI H2 – range 0-2000ppm
WC2H1MI H2S – range 0-30ppm
WC2H2MI H2S – range 0-100ppm
WC2H3MI H2S – range 0-1000ppm
WC2HFMI HF – range 0-10ppm
WC2L1MI HCL – range 0-30ppm
WC2L2MI HCL – range 0-100ppm
WC2Y1MI HCN – range 0-10ppm
WC2Y2MI HCN – range 0-30ppm
WC2HYLMI N2H4 – range 0-1ppm
WC2HYMI N2H4 – range 0-100ppm
WC2A1MI NH3 – range 0-100ppm
WC2A2MI NH3 – range 0-1000ppm
WC2NOMI NO – range 0-100ppm
WC2N1MI NO – range 0-300ppm
WC2N3MI NO – range 0-1000ppm
WC2N2MI NO2 – range 0-10ppm
WC2N4MI NO2 – range 0-30ppm
WC2O2MI O2 – range 0-30 % vol
WC2O3MI O3 – range 0-1ppm
WC2PHMI PH3 – range 0-1ppm
WC2SIMI SiH4 – range 0-50ppm
WC2SOMI SO2 – range 0-10ppm
WC2S1MI SO2 – range 0-30ppm
WC2S2MI SO2 – range 0-100ppm

Sensors

OLC20 & OLC50

6313741 Replacement sensor for OLC 50, 0-100% LEL (catalytic)
6313757 Replacement sensor for OLC 20 et OLC 50D (catalytic)
6313759 Replacement sensor for OLC 20 et OLC 50D, 0-100% vol CH4 (catharometric)
6313761 Replacement sensor for OLC 50, 0-100% vol CH4 (catharometric)
6313983 Replacement sensor for OLC 50, 0-100% vol H2/SF6 (catharometric)
6313995 Replacement sensor for OLC 20 et OLC 50D, 0-100% LEL butadiène/acétylène (catalytic)
6314005 Replacement sensor for OLC 50, 0-100% LEL butadiène/acétylène (catalytic)
6314057 Replacement sensor for OLC 50, poison-resistant, 0-100% LEL (catalytic)
6314204 Replacement sensor for OLC 20 et OLC 50D, 0-100% vol H2 (catharometric)
6313988 Replacement sensor for OLC 20 et OLC 50D, 0-100% vol SF6 (catharometric)

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