Net Safety Millennium II ST3 XChem Oxygen O2 Gas Sensor [Electrochemical]

Rosemount

Net Safety Millennium II ST3 XChem Oxygen O2 Gas Sensor [Electrochemical]

Rosemount

The Millennium II ST3 XChem series of electrochemical toxic gas sensors provide high specificity, fast response, and long life. All ST3 sensors are part of the universal Millennium II Gas Detection platform and are compatible with the M21, M22, and M2B transmitters. Our latest design employs our “SimpleClick” sensor element design and low power consumption.

Specifications

Time Constant / Response
H2S: T20=10s; T50=15s; T90=15s
CO: T20=10s; T50=15s; T30=15s
O2: T20=7s; T50=10s; T20=15s
Accuracy
Refer to Product Data Sheet
Detection Range
H2S: 0-20/50/100 ppm (Field Selectable)
CO: 0-500/1000 ppm (Field Selectable)
O2: 0-25 % vol. (Field Selectable)
Operating Temperature
H2S: 40 °C to +50 °C (-40 °F to +122 °F)
CO: -20 °C to +50 °C (-4 °F to +122 °F)
O2: -20 °C to +50 °C (-4 °F to +122 °F)
Enclosure Rating
IP64
Weight
Stainless Steel: 3.5 lbs (1.4 kg)
1 lb (0.4 kg)
Humidity Range
15-90% non-condensing
Certifications/Approvals
Class I Division 1 Groups BCD T5
Ex d IIB+ H2 T5
Class I Zone 1 AEx d IIB +H2 T5
Ex d IIB+H2 T5 Gb
IP64
Warranty
2 years

Features

  • Sensor end of life diagnostic
  • Plug and play design where the transmitter automatically recognizes sensor configuration
  • Low power consumption increases uptime
  • Two year warranties available on most sensors
  • Field selectable gas ranges
  • Designed to perform in the most extreme industrial environments

Documents & Drawings

Training & Services