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Specifications

Method of Detection

Temperature compensated thermal conductivity (T/C) cell cannot be burned out due to loss of flow or changing gases

Ranges Available

0-100% He in air or in N2

Resolution

0.1% of He

Accuracy & Repeatability

±2% of full scale

Drift

±1% of full scale per week

Response Time (T-90)

90% of final reading in 10 seconds

Ambient Temperature Range

12 to 50 ºC
55 to 120 ºF

Linearity

±2% of F.S. on He in Air or Nitrogen

Size & Weight

10" L x 7 1/2" H x 6 1/2" D @ 8 lbs (25.5 x 19 x 16.5 cm @ 3.6 kg)

Power

AC/DC Operation. 115 VAC 60 Hz for recharging (220 VAC 50 Hz available)

Output Options

4-20 mA or 0-1 VDC

Alarms

Helium alarm with LED (optional)

Hazardous Area Rating Options

General Purpose, Non-Hazardous


Applications
For checking helium (He) concentrations in a single, other background gas, such as nitrogen.



Features
  • Rugged design that is easy to operate
  • Fast warm up and response
  • Long life thermal conductivity cell that provides accurate and stable readings
  • Digital meter readout with backlight
  • Modular layout that is easy to maintain
  • Rechargeable 'gel cell' battery operated
  • Built in sample pump
  • Lightweight, compact and easy to use
  • Weatherproof (WP) cabinet with clear lexan cover




Options
  • Recorder outputs of 0-1 V or 4-20 mA
  • Sample pre-cooler for hot samples
  • Suitcase (K) style cabinet available
  • AC power only operation
  • Helium alarm with LED
  • Detachable/portable Datalogger




Calibration
  • Ambient air for zero
  • 100% He calibration gas for span.
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