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.