DVR 4/4S
Description
Vacuum Gauge DVR 4 / DVR 4S
Vacuum gauge
ATEX II 1/2G EEx ia IIC T5,
e.g. for use at zone 0 (measuring volume), surrounding area zone 1
1080 - 1 mbar (hPa)

DVR 4/DVR 4S are fully electronic vacuum gauges with ATEX certification for use in areas with potentially explosive atmospheres (measuring volume: ATEX category 1, e.g. for zone 0). They have an integrated transducer made of alumina ceramic with excellent long-term stability and high permissible gas temperature. Their independence from mains power supply, ease of use and combined large digital/analogue display for quick trend detection and precise readout make these instruments very versatile. The DVR 4S features an additional current-loop interface (4 - 20 mA) for remote pressure readout. They are mechanically robust, free of mercury and cadmium, without fragile mechanical components, for use in chemical and process industries, plant and process technology.
Advantages
- ATEX certification for category 1 (measurement volume), e.g. for use at zone 0
- analog display and digital readout: fast tendency detection, clear and precise readout
- integrated alumina ceramic gauge head: excellent precision and very good corrosion resistance
- fully electronic, no fragile mechanical parts
- independent power supply unit BVE 9V, mercury and cadmium-free
- battery level indicator
-
remote pressure readout via current loop interface 4 - 20 mA (DVR 4S only)
Technical data
| ATEX certification | II 1/2 G EEx ia IIC T5 (e.g. measurement volume at zone O, surrounding area zone 1) |
| Principle of measurement | capacitive, gas type independent absolute measuring |
| Gauge head | integrated, made of alumina ceramic |
| Measuring range | 1080–1 mbar (hPa), 810–1 Torr |
| Uncertainty of measurement | < ±1 mbar (0.75 Torr) ±1 digit |
| Temperature coefficient | < 0.07 mbar/K |
| Auto switch-off | user-selectable operating time 1–1000 minutes (default: 15 min.) or “continuous operation” |
| Measuring cycle time | user-selectable: automatic or 1 x per 3s, 1 x per 1s, 3 x per 1s |
| Max. temperature of gaseous media at the pressure transducer | +80 °C (short-term) |
| Ambient temperature range (operation) | +10 °C to +40 °C |
| Ambient temperature range (storage) | -10 °C to +60 °C |
| Vacuum connection | similar to small flange NW 16 (stainless steel)* |
| Housing | robust plastic housing (PP, conductive) with good chemical resistance |
| Power supply unit** | BVE 9 V, ATEX certification : II 2G EEx ia IIC T5 |
| Dimensions (L x W x H) | 116 x 116 x 86 mm |
| Weight | 0.73 kg |
| Interface (DVR 4S) | 4 – 20 mA (communication only; no power supply) |
| * DVR 4S also available with vacuum connection made of special corrosion-resistant stainless steel. | |
| ** The vacuum gauges must be operated exclusively with VACUUBRAND power supply unit BVE 9 V. | |
Order data
| Vacuum gauge DVR 4 / DVR 4S | Cat. No. |
|---|---|
| DVR 4 | 68 29 04 |
| DVR 4S | 68 29 05 |
| Items supplied: Vacuum gauge with on/off switch, power supply unit BVE 9 V and instructions for use. | |
| Power supply unit BVE 9 V* | 63 79 86 |
| DKD calibration on first delivery | 90 02 16 |
| DKD recalibration | 90 02 17 |
| * The vacuum gauges must be operated exclusively with VACUUBRAND power supply unit BVE 9 V. |
