Ultra Low Pressure Calibrators | Chamois Metrology Ltd

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.

Automatically generates pressure, controls and measures it!

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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Automatically generates pressure, controls and measures it!

Additel ADT 761A -LLP - Fully Automated Portable Calibrator

With built-in high performance electronic pump and precision pressure controller, the ADT 761A 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 as low as ±0.62 mbar to 2.5 bar
Pressure control to 0.003%
Accuracy 0.02 to 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 to 60,000 psi (4,200 bar)
Now offering 0.05% accuracy up to 40K psi
0.02%, 0.05%, 0.1%, 0.2% FS or 0.1% RD accuracy
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)

Additel ADT 901 - Low Pressure Calibration Test Pump

The ADT901 Low Pressure Calibration 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.

Generated pressure range -0.4 bar to +0.4 bar
Insulated isothermal chamber for greater stability
Specially designed screw for fine adjustment
Hand-tight quick connectors (no need for PTFE tape or spanners required)
The ADT 901 can also be used with Additel 672 Digital Pressure Calibrators
and Additel 681 Digital Pressure Gauge

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Ultra-low Pressure Calibrators

Additel ADT 760 - Automatic Handheld Pressure Calibrator

Additel ADT 761A -LLP - Fully Automated Portable Calibrator

Additel ADT 681 - Digital Pressure Gauge

Additel ADT 901 - Low Pressure Calibration Test Pump

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