XPO 318

The model Cosmotector XPO-318 is a compact, lightweight automatic sampling instrument which may be used to measure the oxygen content of the atmosphere of any confined space over a range of 0-25%.

Typical applications include checking manholes, sewers, tanks and other areas of potential oxygen deficiency; testing hard to reach areas in heat treating atmospheres as well as measuring oxygen in inert gas, oxygen in hydrocarbons, and tail gas monitoring in oxidation reactions. The sample of the atmosphere to be tested is drawn through a sampling tube automatically and continuously by means of an internal, extremely low power drain micropump, passed over the transducer of a galvanic cell and exhausted to atmosphere. The oxygen content is indicated directly on a large, clear liquid crystal diode (LCD) digital meter. A single multiposition switch turns the instrument on checks battery voltage and selects operation with or without alarm. With the selector switch set to "Alarm" position, an intermittent tone sounds an alarm when the oxygen drops below 18%. A depress of a meter light switch can illuminate for testing at night and checking dimly lighted areas. A set of 4 UM-3 (AA-size) dry cell batteries gives up to 8 hours of continuous operation or 200 intermittent tests with an assumption of 3 minutes operation a time. When battery-operating voltage drops below the required level, an LED power pilot lamp goes off, indicating that batteries require replacement

Features

  • Automatic Sampling
  • Compact and Lightweight
  •  Audible Alarm
  • Fast and Simple
  • Operation Easy to maintain
  • Intrinsically Safe
  • Ruggedly Constructed

Special Models

Model XPO-318 (E) - This is a specially modified model, designed to be available for use in making a periodic measurement of oxygen in flue gas as well as checking heat treating atmospheres. The model XPO-318(E) measure oxygen without interference from background gases. A cooling-down probe with a cooler and moisture trap/ filter is available for sampling heated atmospheric air. Other special models- Model XPO-318 may be furnished with an output for interconnection to a recorder or on external remote signal unit. Details on request.

Specifications

 Detection Principle Galvanic Cell.
Monitoring Range: 0-25%O2.
Accuracy : ± 0.7% of O2.
Response: Max. 20 seconds to 90%.(With 1m long sampling tube connected)
Alarm Presetting Level: Factory preset at 18% O2.
Temperature Range: 0° C to 45° C (32° F to 11° F).
Intrinsic Safety: D2G3.
Power: 4 X UM-3 (AA-Size) dry cell batteries.
Sensor Life: Minimum 6 months.
Dimensions: 190mm H X 84mm W X 40mm D(7.5" X 3.3" X 1.6" )
Weight: 800g. (1.8lbs.)
Accessories Supplied: Carrying case.Probe with filter / moisture trap.Sampling tube 1 m long Filter refills (2 pcs.)Cooling down probe (CF-3A) with cooler and filter / moisture trap (Model XPO-318 (E) only).
Optional Accessories: Floating probe (SF-10A) with float and filter / moisture trap (for testing a confined space where there may be a liklihood of water standing in the bottom).Cooling-down probe (CF-3A) for testing heated atmospheric air (in model XPO-318 (E), supplied as a standard accessory).Sampling tube 5m long or other length as required.