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8137 High Pressure Radar Level Measuring Device
Brand: Burkert Fluid Control Systems
The Type 8137 is a non-contact radar level measuring device for continuous level measurement.
The unit is available in two versions:
- With thread and horn antenna (Diameter 40 mm) particularly suitable for use in small tanks and process vessels for measurement of almost any product.
- With flange and horn antenna (Diameter 40 or 75 mm) particularly suitable for use in storage tanks and process vessels for measurement of media such as solvent, hydrocarbons and fuels under extremely difficult process conditions
- For level measurement up to 30 meters
- 4-20 mA/Hart - 2-Wires
- Adjustable via Display, key operation or PC-Tool with DTM
- ATEX approvals
Specifications
Accuracy
- ± 2 mm
Adjustment
- > 1 second (Dependent on the Parameter Adjustment)
Ambient Temperature Range
- Conformity Specification: -40° to 55° C (-40° to 131° F)
- Operation & Storage: -40° to 80° C (-40° to 176° F)
Applications
- In the Digester, in the Decanter
- Storage Tanks
Approvals & Certifications
- Security: EN 61010-1
- ATEX: EN 60079-0, EN 60079-11, EN 60079-26
- EMC EN 61326
- Ex ia IIC T6
- NAMUR: NE 21, NE 43
- PTB 08
BSP Connection
- G 1-1/2” Male
Class
- Protection: Class II
Communication
- HART
Cone Material
- Antenna Cone: PTFE (TFM 1600 PTFE)
Cover Material
- Polycarbonate (PC)
Current
- Fault Signal: < 3.6 mA (Selectable)
- Fault Signal: 20.5 mA (Output Unchanged)
- Fault Signal: 22 mA (Selectable)
Damping Adjustment
- 63 % of the Input Variable: 0 to 999 seconds
Deadband
- Dead Zone: 50 mm
Diameter
- Antenna: 1.57” (40 mm)
- Antenna: 1.89” (48 mm)
- Antenna: 2.9” (75 mm)
- Antenna: 3.7” (95 mm)
Display
- LCD in Full Dot Matrix
Electrical Connectors
- Cable Glands M20 x 1.5
Electrical Rating
- Short Circuit Rating: 131 mA
Enclosure, Body Material
- 316L Stainless Steel, 1.4404
- Polybutylene Terephthalate (PBT)
Environmental Protection
- IP66
- IP67
Flange Size - 2” (DN 50)
- 2” (DN 50) - 150# (ANSI B16.5)
- 2” (DN 50) - PN 16 (DIN 2501)
- 2” (DN 50) - PN 40 (DIN 2501)
Flange Size - 3” (DN 80)
- 3” (DN 80) - 150# (ANSI B16.5)
- 3” (DN 80) - PN 40 (DIN 2501)
Flange Size - 4” (DN 100)
- 4” (DN 100) - 150# (ANSI B16.5)
- 4” (DN 100) - PN 40 (DIN 2501)
Flange Size - 6” (DN 150)
- 6” (DN 150) - 150# (ANSI B16.5)
- 6” (DN 150) - PN 40 (DIN 2501)
Flange Size - 8” (DN 200)
- 8” (DN 200) - 150# (ANSI B16.5)
- 8” (DN 200) - PN 40 (DIN 2501)
Flange Type
- Raised Face (RF)
Frequency
- K-band (26 GHz Technology)
Humidity
- 80 %, Max.
Interval Time
- Approximately 1 second
Load Resistance
- 1,000 ohms
Materials of Construction
- Ground Terminal: 316L Stainless Steel 1.4435
- Ground Terminal: 316Ti Stainless Steel 1.4571
Measuring Range
- 0.05 to 10 metres (Antenna with Ø 40 mm)
- 0.05 to 30 metres (Antenna with Ø 75 mm)
NPT Connection
- 1/2” NPT Male
- 1-1/2” NPT Male
Operating Voltages
- 14-30 Vdc (Ex ia Instrument)
- 14-36 Vdc
- Conformity Specification: 30 V
Output
- 4-20 mA / HART (2-Wire)
Power
- 983 mW
Pressure Range
- bar: -1 to 40
- kPa: -100 to 4,000
- psi: -14.51 to 580.4
Process Connection Material
- 316L Stainless Steel
Process Temperature
- -40° to 130° C (-40° to 266° F)
Resistance
- 250 ohms
Resolution
- 1 mm, Max.
- 1.6 µA
Ring Material
- Seal Ring: NBR
Seat / Seal Material
- Seal (Antenna System): FKM
- Seal (Threaded Version): Klingersil C 4400
Temperature Coefficient
- 0.03 % / 10 K (Average Temperature Coefficient of the Zero Signal Temperature Error)
Vibration
- Vibration Resistance: Mechanical Vibrations with 4 G at 5 to 100 Hz
Wetted Materials
- Antenna: 316L Stainless Steel
- In the Digester, in the Decanter
- Storage Tanks