PROTEK INSTRUMENTS LIMITED COMPANY

Advanced Features

■ Simple to operate with an intuitive user interface
■ User selectable range from 0-1ppm to 100ppm
■ Auto-ranging or manually lock on single range
■ Fast response, requires zero maintenance
■ Reliable accuracy and stable performance
■ Flow transducer is used control the flow
■ 19-inch rack mounting, 3U in height
■ 4-20mA output and RS485 as standard
■ Low sample and calibration gas consumption
■ Low sample and calibration gas consumption“high” and “low” alarms

Technical Specifications

Measurement Range	User selectable from 0-1ppm to 0-100ppm
Detector Type	HPD
Background Gas	Argon, Helium
Output	4-20mA isolated output and RS485 are standard
Accuracy (Intrinsic error)	Better than ±1% of range
Drift	< ±1% of range
Response Time	T90 < 10 seconds
Alarm	Concentration alarms, for “high” and “low” alarms
Operating Sample Pressure	3 -10psi
Outlet Pressure	Atmospheric
Operating Sample Flow	25 - 200ml/min
Sample Gas Condition	Must be oil free, non-corrosive, non-condensing and non-flammable
Operating Temperature	Range: 10ºC to 45ºC
Dew Point	5ºC to 40ºC
Power Supply	115VAC, 50 – 60 Hz or 220VAC, 50 – 60 Hz
Mounting	19-inch rack mounting, 3U in height
Weight	10Kg (23 lbs)
Gas Connection	Sample: 1/8” compression fitting Vent: 1/8” compression fitting

Typical Applications

■ Air separation unit
■ Argon production
■ Helium liquefaction plants
■ Cryogenic truck loading station
■ Gas bottling plants
■ Specialty gas laboratories
■ Universities and laboratories
■ Welding gas control
■ Quality control for gas cylinders
■ Chemical Plants