8700 Mass Flow Meter

Brand: Burkert Fluid Control Systems
Does not ship to Virginia, United States

Mass flow meters are used in process technology for the direct measurement of the mass flow of gases. In case of volumetric flow meters, it is necessary to measure the temperature and the pressure either the density, because gases change their density or rather their volume depending on the pressure. 

The measurement of the mass flow, on the other hand, is independent of the pressure and the temperature. The digital mass flow meter Type 8700 uses a classic bypass sensor. The actual flow is given as an Analog output signal or could be read out over RS-communication, also fi eldbus devices are available. 

Type 8700 can optionally be calibrated for two different gases, the user is able to switch between these two gases. 

The materials of the parts that come into contact with the medium are selected according to customer specifi cation so that the unit can be operated with the complete range of standard process gases. The MassFlowCommunicator software can be used for parameterisation and diagnosis.

Specifications

Accuracy

  • After 30 minutes Warm-Up Time: ± 0.3 % of Full Scale
  • After 30 minutes Warm-Up Time: ± 1.5 % of Reading

Ambient Temperature Range

  • -10° to 50° C (14° to 122° F)

Applications

  • Analytical Instruments
  • Environmental Technology
  • Laboratories
  • Test Bench Equipment

Approvals & Certifications

  • CE

BSP Connection

  • G 1/4” Female

Communication

  • DeviceNet Bus
  • Digital
  • FOUNDATION Fieldbus, CANopen
  • Modbus RTU
  • PROFIBUS DP
  • RS-232
  • RS-422
  • RS-485
  • USB

Consumption

  • Power Consumption: 2.5 W
  • Power Consumption: 5 W (with Fieldbus)

Electrical Connectors

  • D-Sub 15-Pin Plug Connector
  • PROFIBUS-DP, DeviceNet & CANopen: Socket M12 Plug, 5-Pin

Electrical Contacts

  • Normally Closed
  • Normally Open

Enclosure, Body Material

  • Metal
  • Plastic
  • Polycarbonate
  • Stainless Steel

Environmental Protection

  • Protection Class: IP40

Flow Rate

  • Full Scale Ranges: 5 to 15,000 mL/min

Indication

  • LED Indication for Power, Communication, Limit & Error

Media

  • Air
  • Neutral Gasses

Mounting Position

  • Horizontal
  • Vertical

NPT Connection

  • 1/4” NPT Female

Operating Pressure

  • Maximum

Output

  • 0-10 V
  • 0-20 mA
  • 0-5 V
  • 4-20 mA
  • Maximum

Output Load

  • Maximum

Power Supply

  • 24 Vdc

Principle of Operation

  • Thermal, Calorimetric

Process Temperature

  • -10° to 60° C (14° to 140° F) for Oxygen
  • -10° to 70° C (14° to 158° F)

Ratio

  • Control Range 1:50

Relay Output

  • One Relay Output: 1 A at 25 V, 25 VA

Repeatability

  • ± 0.1 % of Full Scale

Response Time

  • < 3 seconds

Seat / Seal Material

  • Seal: EPDM
  • Seal: FFKM
  • Seal: FKM

Sensor Circuit

  • Residual Ripple: < 2 %

Tolerance

  • Voltage: ± 10 %

Typical application areas are gas flow measurement in:
  • Test benches
  • Environmental technology
  • Laboratories
  • Analytical equipment

Documentation

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