DRB - Turbine Wheel Flowmeter

Details: Published: Tuesday, 31 July 2012 11:44; Hits: 8051

FEATURES

Flow ranges 1.5-8 GPM to 15-200 GPM
Bronze or stainless steel bodies
Frequency or 4-20 mA output
Electronic displays and controllers
Max. Pressure 580 PSIG

GENERAL DESCRIPTION

The DRB and DPE series turbine wheel flowmeters are an economical yet very reliable solution for measuring liquid flows in pipes up to 3 inches in diameter. The unique “insertion” impeller design protrudes minimally into the flow stream which minimizes head loss and allows measurement of dirty liquids, and liquids with high solid content, without risk of failure.

The DRB and DPE series feature a PVDF impeller supported on a sapphire bearing system which provides an exceptionally long life and excellent chemical resistance properties. The DRB and DPE series are available with either bronze or stainless steel threaded bodies. A Hall effect sensor detects the passing of permanent magnets imbedded in the impeller blades. The output of the Hall sensor is converted to a linear pulse or 4-20 mA signal. Optionally, a variety of displays and controllers is available to provide flow rate indication, analog outputs and programmable setpoint switches. The DRB and DPE series’ combination of simple, reliable design and variety of body materials and electronics options makes them a sure solution for the toughest flow metering applications.

SPECIFICATIONS

Accuracy:
DRB Series ±3% of full scale
DPE Series: ±2.5% of full scale
Maximum Pressure
DRB Series: 250 PSIG
DPE Series: 580 PSIG
Operating Temperature: -10 to 176°F
Materials of Construction
Body: Bronze or 316 stainless steel
Impeller: PVDF
Axle: 316 stainless steel
Bearings: Sapphire
O-rings: Buna-N for bronze bodies, Viton for SS bodies
Piping Straight Run
Requirement: 20 X pipe diameter upstream 10 X pipe diameter downstream
Electrical Specifications
Frequency Output
Output Type: PNP open collector, 25 mA max.
Power Requirement: 14-28 VDC
Electrical Protection: NEMA 4X
Electrical Connection: Micro-DC plug, 4-pin male

4-20 mA Output
Output Type: 4-20 mA, 2-wire or 3-wire depending on model
Max. Loop Load: 500 ohms
Power Requirement: 24 VDC ±20%
Electrical Connection: Micro-DC plug, 4-pin male or DIN 43650 (Hirschmann) plug
Electrical Protection: NEMA 4X
Compact Electronics
Output Type: 4-20 mA, 3-wire & PNP switch or 2 PNP switches
Switch Rating: 300 mA Max. short circuit protected flow switch or frequency transmitter
Power Requirement: 24 VDC ±20%
Display Type: 3 digit LED
User Programmable Functions: Transmitter span, switch setpoint, lockout code
Housing: 304 SS, NEMA 4X
Electrical Connection: Micro-DC plug, 5-pin male
Electronic Display/Controller
Output Type: 4-20 mA, 4-wire and 2 adjustable setpoint relays
Relay Rating: SPDT 5 amps @ 230 VAC
Input Power: 115 VAC
Display Type: 3-1/2 digit LED and 270° bargraph
Enclosure: Epoxy coated aluminum and polycarbonate, NEMA 4X

ORDERING INFORMATION

Ordering Codes for DRB Series