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

The HGTD was designed as an alternative to the Standard GTD-Pro. The HGTD is smaller and lighter in weight than the Standard GTD-Pro. It is particularly suited for deployment on profilers and gliders or in applications where a faster response, smaller and lighter weight instrument for measuring gas tension is needed. The HGTD is fitted with PSI's fast response pumped tubular interface (patent pending). 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.).

The specifications and features of the HGTD are provided on this page. For more information, please contact PSI.

PSI HGTD Features:

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

Comes equipped with the PSI tubular pumped fast interface (patent pending)

For more options for measuring gas tension see Standard GTD-Pro

Specifications

Physical Specifications
Length: 9 in. (22.9 cm)
Diameter: 3.25 in. (8.3cm)
Weight (air): 3.6 lbs.(1.6 kg)
Weight (water): 1.32 lbs. (0.6 kg)

Performance
  • Accuracy: <0.02 mb per year drift from calibration
  • Precision: 0.002 mb
  • Gas tension limits:
    • Min: 800 mb
    • Max: 2000 mb (Other gas tension limits available by special order)

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