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Products / Ultra-low Pressure Calibrators

Ultra-low pressure calibrators from Additel, including hand-held and portable pressure calibrators, and test pumps,
provide an accurate, reliable, and economic solution for a wide range of pressure applications.

Additel ADT 760 - Automatic Handheld Pressure Calibrator

A portable automated pressure calibrator in the palm of your hand—this could be our most exciting product yet! The Additel 760 series Automatic Handheld Pressure Calibrator takes portable pressure calibration to new levels. Weighing less than 4 lbs (1.8 kg), the ADT760’s innovative design contains a built-in pump, precision pressure sensor, internal controller and a large touch-screen colour display.

  • Pressure ranges from ±0.62 mbar to 20 bar
  • Fully automatic calibrator with built-in pump and controller
  • Switchable internal pressure modules for expandable ranges
  • Accuracy (1 year) of 0.02%FS
  • External pressure modules available (measure only)
  • Less than 4 lbs (1.8 kg) for handheld operation
  • Source pressure, measure pressure and electrical
  • 4 channels
  • Optional HART communications
  • Optional data logging and task documenting
  • USB, Wi-Fi, and Bluetooth communications
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Additel ADT 761-LLP - Fully Automated Portable Calibrator

With built-in high performance electronic pump and precision pressure controller, the 761 series portable automated pressure calibrators provides a turn-key solution for calibration of gauges, transmitters, and switches both in the field and in the laboratory.

  • Pressure ranges -25 to 25 mbar
  • Pressure control
  • Accuracy 0.05% FS
  • Integral pressure generator/controller
  • Dual range pressure modules
  • Built-in filter and liquid trap with venting system
  • Measures and sources electrical signals
  • Automated switch test
  • 24 Vdc power supply
  • HART communications
  • Documenting and logging
  • External pressure modules and manifold available
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Additel ADT 681 - Digital Pressure Gauge

With advanced microprocessor technology and state-of-the-art silicon pressure sensors, the 681 series digital pressure gauges provide an accurate, reliable, and economic solution for a wide range of pressure applications. They are loaded with functionality and remarkably easy to use, and are available as stand alone or panel mount versions.

  • Pressure ranges from ±2.5 mbar to 2800 bar
  • Accuracy to 0.02%
  • Fully temperature compensated accuracy from 14°F to 122°F (-10°C to 50°C)
  • Up to eleven selectable pressure units
  • Large, easy to read display with 5-digit resolution
  • ATEX versions available with IP67
  • Panel mounted versions available
  • Data logging to 21,843 records (includes date, time, pressure and temperature)
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Additel ADT 901 - Low Pressure Test Pump

The 901 Low Pressure Test Pump is a hand operated pressure pump designed to generate pressures from -6 psi (-0.4 bar) to 6 psi (0.4 bar). A high-quality screw press is designed for fine pressure adjustment, with an adjustment resolution up to 0.1 Pa (0.001 mbar). The 901 is a very stable low pressure calibrator.

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