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DMW Direct Mass Flow Meter and Controller
Brand: KOBOLD Instruments, Inc
The new KOBOLD model DMW direct mass flow meter has been specially designed for use in gas measuring technology. An inexpensive Analog output is fitted.
The model DMW is available in three versions: with or without integrated 3 ½-digit LCD display or with a 8-digit counter. The direct stream procedure is ideally suited for measurements from 0,5 NL/Min (max.) up to 6000 Nl/min air (model: DMW-B*786). In case of small flow rates the measurements are taken with a bypass-system (DMW-A/C).
In contrast with most volumetric flow meters the mass flow meter DMW has no moving parts, and no temperature or pressure correction is required.
The meter may be installed in any position and the pressure loss is negligible. The simple mechanical construction ensures the highest degree of reliability when used with aggressive gases, and under tough industrial service conditions.
Specifications
Brand
Accuracy
- ± 3 % of Full Scale Including Non-Linearity
Applications
- Burner Controller
- Gas Indication Panels
- Laboratories & Research
- Mechanical Engineering
- Monitoring of Gases
- Nitrogen/Oxygen Generators
- Semiconductor Industry
- Varnishing Facility & Coating Facility
BSP Connection
- G 1" Female
- G 1/2" Female
- G 1/4" Female
Display
- 3-1/2" Digits LCD - Flow Rate
- 8-Digit LCD - Counter
Electrical Connectors
- Round Pin Plug / Opposite Plug
Environmental Protection
- IP40
- IP65 - Optional
Flow Rate
- 0.005 to 6,000 NL/minute - Air
Input
- 0-5 Vdc
- 250 mA - Max.
- 4-20 mA
- 75 mA - Max.
Maximum System Pressure
- psi: 145 (bar: 10, kPa: 1,000)
Mounting Position
- Any, Flow Rate in Arrow Direction
Output
- 0-5 Vdc
- 4-20 mA
Power Requirement
- 15 Vdc ± 10 %
- 24 Vdc ± 10 %
Repeatability
- ± 0.5 % of Full Scale
Ring Material
- 304 Stainless Steel
- PTFE
Seat / Seal Material
- EPDM
- FFKM
- FPM
Sensor / Probe Material
- 316L Stainless Steel
Temperature Effect
- ± 0.3 % of Actual Value / °C (Air)
- ± 0.3 % of Actual Value/°C - Air
Temperature Range
- 0° to 50° C (32° to 120° F)
- 50° C (122° F) - Max.
Update Time
- 30 minutes for Optimal Accuracy - PreHeating Time
- 30 seconds for Accurcy ± 4 % of Full Scale - PreHeating Time