Digital vacuum meter DVR 3pro

analoghand-heldportable

Overview

• Mains-independent operation via a replaceable 9 V battery and ATEX approval (category 2) for use in hazardous zones.
• Large graphical analog display combined with a precise digital readout for quick trend recognition and accurate values.
• Menu options to reduce power consumption and extend battery life; battery easily replaceable; non-lithium cell.
• High reliability with low EMI emissions near the detection limit and strong immunity to electromagnetic interference for industrial environments.
• Capacitive ceramic-diaphragm vacuum sensor (alumina) offering excellent chemical resistance and long-term stability.

Description

• The DVR 3pro is a fully electronic, versatile vacuum gauge with ATEX approval (II 2G EX ib IIC T4 Gb) for potentially explosive atmospheres.
• Combined analog and digital pressure display enables fast visual trend analysis and precise reading of measured values.
• Integrated alumina ceramic capacitive sensor provides gas-independent absolute pressure measurement with high stability and corrosion resistance.
• Operable from a standard 9 V battery; battery is replaceable via a removable rear cover (battery replacement must be carried out outside the hazardous ATEX area).
• Supplied complete with integrated vacuum sensor, 9 V battery, hex key, connecting parts and instruction manual.

Technical data (table)Upper measuring limit (mbar/hPa): 1060 mbar
Upper measuring limit (torr): 795 torr
Lower measuring limit (mbar/hPa): 1
Lower measuring limit (torr): 1 torr
Measurement principle: Ceramic diaphragm (alumina), capacitive, gas independent, absolute pressure
Accuracy of measurement: < ±1 mbar/hPa/torr / ±1 digit (after adjustment, constant temperature)
ATEX conformity: II 2G EX ib IIC T4 Gb
Temperature coefficient: < 0.15 mbar/hPa / 0.11 torr /K
Vacuum connection: Small flange KF DN 16, PTFE tubing connection 10/8 mm, hose nozzle DN 6/10 mm
Storage temperature range: -10 °C to 60 °C
Operating ambient temperature range: 10 °C to 40 °C
Max. media temperature for continuous operation: 40 °C
Max. media temperature short term: 80 °C
Automatic switch-off: User-selectable 1-600 min (default 5 min) or continuous operation
Measurement cycle: User-selectable: Automatic or 1 x per 3s, 1 x per 1s, 3 x per 1s
Material of outer housing: Robust plastic housing with good chemical resistance
Protection class IEC 60529: IP 40
Protection class front side IEC 60529: 6
Power supply: 9 V battery
Weight: 0.4 kg
Dimensions (L x W x H): 117 mm x 117 mm x 91 mm
Vacuum sensor: Integrated
Typical battery lifetime: 4,000 h; standby: 30,000 h
Items supplied: Vacuum gauge complete with integrated vacuum sensor, including battery, hex key, connecting parts and manual

Features / technical specifications

• Model: DVR 3pro
• Product reference: 20682907
• Sensor type: Capacitive ceramic-diaphragm (alumina), absolute pressure
• Measurement range: 1 torr (≈1 mbar) to 795 torr (≈1060 mbar)
• Accuracy: < ±1 mbar/hPa/torr ±1 digit (after adjustment, constant temperature)
• ATEX approval: II 2G EX ib IIC T4 Gb
• Connections: KF DN16, PTFE tubing connection 10/8 mm, hose nozzle DN 6/10 mm
• Battery: 9 V (included), replaceable (non-lithium)
• Typical battery life: ~4,000 h (operation), ~30,000 h (standby)
• Protection: IP40 (housing), front side rating 6
• Dimensions & weight: 117 × 117 × 91 mm; 0.4 kg
• Delivery: Device with integrated sensor, battery, hex key, connecting parts and manual