Choose from our line of instuments:
C02 Pro GTD Pro 02 Pro N2 Pro

The GTD-Pro Standard Model was the first instrument designed by Pro-Oceanus Systems and is designed for use:

  • In laboratories
  • On moorings and
  • Aboard ships in underway mode

The specifications of the PSI GTD-Pro are provided on this page. For additional information, please contact PSI.

PSI Standard GTD-Pro Features:

  • Exceptional precision and accuracy
  • User friendly set-up and operation
  • RS-232/485 communications interface
  • Compatible with Sea-Bird Electronics CTD's (please contact PSI for models supported)
  • Low power requirements
  • Light weight and compact size
  • Hard anodized aluminum housing
  • Shipped in high-impact carrying case

Special Order Options

  • Pumped Delrin plenum for flat interface: reduces the thickness of the water-side mass transfer boundary layer and reduces the time constant for equilibration. Note that a source of water flow is required at 3 to 10 liters per minute (optional Sea-Bird 5-T pump at 3000 RPM available from Pro-Oceanus Systems Inc. or Sea-Bird Electronics, Inc.). Time constant, = 10 minutes depending on flow rate.
  • Tubular pumped fast interface: alternate fast interface for our standard PSI GTD-Pro. Note that a source of water flow is required at 3 to 10 liters per minute (optional Sea-Bird 5-T pump available from Pro-Oceanus Systems Inc. or Sea-Bird Electronics, Inc.). = 3 minutes depending on flow rate.

For more options for measuring gas tension see HGTD or contact PSI.

Specifications

Physical Specifications
Length: 12.5 in. (31.8 cm)
Diameter: 4.5 in. (11.4 cm)
Weight (air): 15.5 lbs. (7 kg)
Weight (water): 7.436 lbs. (3.38 kg)

Performance
  • Accuracy: <0.02 mb per year drift from calibration
  • Precision: 0.002 mb
  • Gas tension limits:
    • Min: 800 mb
    • Max: 2000 mb with our standard pressure sensor

Electrical Characteristics
  • Input voltage: 9-16 Volts DC
  • Power Consumption:
    • While measuring: 0.8 Watts (67 ma at 12 volts)
    • While sampling at 30 minute intervals: 27 mW overall