Capacitance diaphragm gauge BARAVAC™

BARAVAC™ A/D serials of capacitance diaphragm vacuum pressure transducers are designed for accurate, reliable controlling pressure in a variety of applications. The combine special materials and new technologies are making BARAVAC™ vacuum gauges the most stable, high precision instrument for pressure measurement. The BARAVAC™ A/D series are stand-alone capacitance transducer. It require ±15VDC (24V-30VDC) industrial standard power supply and provide a high level 0-10VDC (4-20mADC) output. This signal can be interfaced directly with BARAVAC™ pressure transducer, power supply/readout unit. Operating on the variable capacitance technique, the CDG uses an Inconel-diaphragm. Inconel® is based Nickel alloy specifically developed for aggressive environment. It is resistant to wide range corrosive gases and has up to 10 times more corrosion-resistance then Stainless Steel 316. The radially-tensioned diaphragm provides very low hysteresis, very good repeatability, high resolution (0.01% of full scale). The differential capacitance is processed high accuracy electronics for improved environmental performance.

Features & Benefit Measures total pressure directly; Gas-type-independent pressure measurement; Standard power requirements and output signal; Digital processing and control; High accuracy; High stability and reliability; Fast response time; Corrosion-resistance; Protection diaphragm from particles condensation; Excellent overload capability; long time-life; Compact design; Low cost.

BARAVAC™ Series A100 (Standard Absolute)

Series A100 are standard models of capacitance diaphragm gauges. These manometers are available in full scale range from 1 to 1000 mmHg (Torr). They are provided dual voltage power supplies: 15 VDC. Series A100 can be complete 15 Pin type “D” connector or 5 Connectors Screw terminal barrier strip.

Note: The range, measurement/display unit system or output signals can be modified in response to the requirements from the clients.

BARAVAC™ Series A200 (High Accuracy)

Series A200 are high accuracy models. Accuracy of these models is 0.25%. Series A200 based on A100, add constant temperature system for the sensor to reduce the influence of environment temperature change, improve the accuracy to 0.25% by reduce the temperature draft. Its temperature factor is <±0.02%/°C. These manometers are available in full scale range from 1 to 1000 mmHg (Torr).

Note: The range, measurement/display unit system or output signals can be modified in response to the requirements from the clients.

BARAVAC™ Series A300 (explosion proof)

Series A300 are explosion proof absolute models. The enclosure of A 300 can resist inside explosion, also, it can keep the explosion inside the enclosure without trigger the outside explosive material in the field. It satisfies the requirements for vacuum measurement in an explosive environment. These manometers are available in full scale range from 1 to 1000 mmHg (Torr).

Note: The range, measurement/display unit system or output signals can be modified in response to the requirements from the clients.

BARAVAC™ Series A600 (Two Set Points Absolute)

Series A600 are the two set points model. These models have two trip point (with setting range 1 – 100% full scale) control relays for control interfacing. They are regulated at 100°C. These manometers are offered in full scale range from 1 to 1000 mmHg (Torr).

Note: The range, measurement/display unit system or output signals can be modified in response to the requirements from the clients.

BARAVAC™ Series D100 (Standard Differential)

Series D100 are standard differential models. These models use for micro differential pressure measurement.
Manometers Series D100 are available in full scale range from 1 to 1000 mmHg (Torr).

Note: The range, measurement/display unit system or output signals can be modified in response to the requirements from the clients.

Application Guide

R – Recommended

Recommendations and applications

• The selection of an appropriate vacuum gauge for a particular application depends upon many factors. Some that should be considered are the required operating pressure range, repeatability of measurement, accuracy of measurement, transducer ruggedness, the presence of chemically reactive gas species, and any sensitivity to stray magnetic or electromagnetic fields.
• While all of these items can help influence the selection of an appropriate vacuum transducer from a theoretical perspective, experience in similar applications is by far the most meaningful and reliable method.
• Flokal Vacuum Technologies' extensive experience with many gauging technologies can help you select the best transducer for your application.

Readout/Power Supply Units

We offer Readout/Power Supply Units CXZ series recommended for use with the BARAVAC™ series Capacitance Diaphragm Gauges. Readout/Power Supply Units are performed in two types: Voltage and Current, which have four display ranges. They are equipped a 4½–place digital LCD display.

Specification

CDG Calibrator

Flokal BV offers compact CDG calibrator ZT1. Calibrator ZT1 has four ranges for calibration of Capacitance manometers. It provides accuracy 0.25%. ZT1 are equipped analogue output signal 0-10VDC and digital RS232. The compact dimensions are making this device very suitable in the usage in the variety of conditions.

Specification