ST-2A Digital Indicator

Brand: Ashcroft Inc
Does not ship to Virginia, United States

The Ashcroft® ST-2A bench top (or panel mounting) calibrator shares the same pressure and temperature modules and interfaces as the Ashcroft ATE-100.

It uses the AQS modular sensor system to provide the ultimate in measurement flexibility.

The base unit contains a wide variety of application-specific firmware as well as the ability to measure both current and voltage inputs.

In addition, this unit has the ability to interface the system with a computer, data acquisition system or dumb terminal via the standard RS232 interface.
Features
  • Measurement of pressure, temperature, voltage and current 
  • Accuracy ratings of ±0.1%, 0.05% and 0.025% full scale (pressure) 
  • Pressure ranges from 0.25 inches of water to psi 10,000 (kPa: 68,950, bar: 689.5) 
  • Interchangeable pressure and temperature modules 
  • Multiple engineering units 
  • Temperature measurement with most common RTDs and thermocouples 
  • Programmable damping 
  • Tare capability 
  • Display hold 
  • RS232 two-way communications 
  • Standard N.I.S.T.-traceable certificate of calibration 

Specifications

Temperature Effect

  • ± 0.004 % of Span/°F over the Compensated Range
  • Electrical Measurement: ± 0.001 % of Span/°F over the Compensated Range

Electrical Rating

  • Sourcing Specification: 24 Vdc at 25 mA

Input

  • 0-10 Vdc
  • 0-20 mA
  • 0 to 30 Vdc

Compensated Temperature

  • -7° to 49° C (20° to 120° F)

Pressure Type

  • Absolute
  • Compound Pressure
  • Differential
  • Gauge
  • Vacuum

Electrical Connectors

  • Banana Plugs Jacks

Operating Temperature

  • 0° to 49° C (32° to 120° F)

NACE & NIST

  • NIST

Approvals & Certifications

  • ISO 9001

Pressure Range

  • Inches WC: 0.25 to 200
  • psi: 5 to 10,000 (kPa: 34.47 to 68,950, bar: 0.34 to 689.5)

Accuracy

  • ± 0.025 % of Full Scale
  • ± 0.03 % of Full Scale
  • ± 0.10 % of Full Scale

Storage Temperature

  • -20° to 70° C (-4° to 158° F)

Power Supply

  • 5 AA Alkaline Battery with Built-in Charger
  • External: 9 Vdc at 500 mA

Resolution

  • Display Resolution: ± 0.002 % of Span
  • Display Resolution: 60,000 Counts, Max.

Enclosure, Body Material

  • Molded, High-Impact ABS

Communication

  • RS-232
  • With 9-Pin D Typical at Baud Rate: 300, 1,200, 2,400, 9,600

Display

  • 0.37” Height, 2 Lines, 16-Characters/Line
  • Alphanumeric LCD
  • Backlit LCD Display

Update Time

  • Display Update Rate: 130 milliseconds (Nominal) with One Sensor Installed
  • Warm-Up: 30 minutes for Complete Stability
  • Warm-Up: 5 minutes for Rated Accuracy, Max.

  • Calibration Labs
  • Test & Measurement
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