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DK 46/47/48/800 Miniature Flowmeter
Brand: Krohne
All flowmeters are equipped with a needle valve in the base to facilitate precise setting of gas and liquid flow rates.
The mounts are made of stainless steel, brass or PVDF and feature a specially designed fitting to take the glass cone.
This device permits easy cone replacement without removal of the mount.
Specifications
Brand
Accuracy
- DK 46: Class 4
- DK 47/800: Class 2.5
- DK 48: Class 1
Ambient Temperature Range
- Limit Switch Typical RC: -20° to 100° C (-4° to 212° F)
- Maximum
- Version RB: -25° to 70° C (-13° to 158° F)
Approvals & Certifications
- ATEX EEx ia IIC T1 to T6
- EMC EN 60947-5-2
Cable Length
- Limit Switch Typical RC: 8” (0.2 Meter) PVC Cable
- Version RB: 6.56 feet (2 metres) PUR Cable
Capacitance
- EMC Filters for Limit Switches: 40 NF
- Limit Switches: 90 to 150 NF
Cone Material
- Measuring Cone: Borosilicate Glass
Consumption
- Power Consumption: 1 mA (Active Area Obscured)
- Power Consumption: 3 mA (Active Area Clear)
Current
- No-load Current: 20 mA
- Operating Current: 0 to 100 mA
Diameter
- Ball (DK 46/47/800): 4 to 8 mm
- Spindle: 0.04 to 0.177” (1 to 4.5 mm)
Differential Pressure
- Minimum psig: 0 to 11.60 (kPa: 0 to 79.9 bar: 0 to 0.8) - Outlet Pressure Regulators
Electrical Connectors
- 0.14 mm² (0.00022 Square inch) Cable
- Connecting Housing PG11
- Limit Switch Typical RC: 2-Wire Connection to DIN EN 50227
- Version RB: 3-Wire Technology
Enclosure, Body Material
- Polybutylene Terephthalate (PBT)
Environmental Protection
- IP67
- NEMA 6
Flow Rate
- Ball (DK 46): 0.19 to 59.55 scfh (5 to 1,600 L/hr) for Air
- Ball (DK 46/800): 0.66 to 42.27 gph (2.5 to 160 L/hr) for Water
- Ball (DK 47): 0.60 to 29.77 scfh (16 to 800 L/hr) for Air
- Ball (DK 47): 0.66 to 26.42 gph (2.5 to 100 L/hr) for Water
- Ball (DK 48): 0.11 to 26.42 gph (0.4 to 100 L/hr) for Water
- Ball (DK 48): 0.60 to 111.65 scfh (16 to 3,000 L/hr) for Air
- Ball (DK 800): 0.19 to 160.03 scfh (5 to 4,300 L/hr) for Air
- Differential Pressure Regulators: Max.
- Inlet Pressure Regulators: Max.
- Outlet Pressure Regulators: Max.
- Spindle: 0.018 to 0.48 Kv (m³/hour)
- Spindle: 0.021 to 0.56 Cv (GPM)
- Spindle: 1.32 to 42.3 gph (5 to 160 L/hr) for Water
- Spindle: 3.72 to 160 scfh (100 to 4,300 L/hr) - Max.
Gasket Material
- Optional Gasket: FFKM
- Optional Gasket: PTFE
- Standard Gasket: Viton
Inductance
- EMC Filters for Limit Switches: 600 µH
- Limit Switches: 70 to 120 µH
Length
- Measuring Cone Length for DK 46: 2.65” (65 mm)
- Measuring Cone Length for DK 47: 5.91” (150 mm)
- Measuring Cone Length for DK 48: 11.81” (300 mm)
- Measuring Cone Length for DK 800: 3.94” (100 mm)
Materials of Construction
- Float Options (DK 46/47/800): Glass
- Float Options (DK 46/47/800): POM (Polyoxymethylene)
- Float Options (DK 46/47/800): Titanium
- Float Options (DK 48): Aluminum
- Float Options (DK 48): Hard Rubber
- Float Options (DK 48): Steatite
- Float Standard (DK 46/47/800): 316 Stainless Steel 1.4401
- Float Standard (DK 48) & Mount (Rail): 316Ti Stainless Steel 1.4571
- Float Stop: PTFE
- Top/Bottom Connection Block for Mount: 316Nb Stainless Steel, 1.4581
- Top/Bottom Connection Block for Mount: Brass
- Top/Bottom Connection Block for Mount: PVDF
Mounting
- Panel Mounting
NPT Connection
- 1/4” NPT
Operating Pressure
- psig: 145 (kPa: 1,000, bar: 10) - Max.
Operating Voltages
- Version RB: 10-30 V
Output
- Version RB: 1 V
Process Temperature
- Maximum
Ratio
- 10:1 - Turn-Down Ratio
Spindle Material
- Valve Spindle: 316Ti Stainless Steel 1.4571
Supply Pressure
- Minimum psig: 0 to 14.5 (kPa: 0 to 100, bar: 0 to 1) - Inlet Pressure Regulators
Temperature Range
- Differential Pressure Regulators: 0° to 80° C (32° to 176° F) - Max.
- Optional for Differential Pressure Regulators: 100° C (212° F)
Voltage
- Rated Voltage: 8 Vdc
