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Flowmeters (Rotameters)
KFR-Series
KMR-Series
KG#-Series
KPV9000 Electronic Gas Flowmeters
| Apex Instruments offers precision
machined acrylic (KFR-Series),
molded polycarbonate (KMR-Series),
glass tube (KG#-Series),
and electronic flowmeters for a variety of applications. We
offer precision engineered sizes and scales for a variety
of fluids. Millimeter reference or direct read scales can
be specified to meet your specific requirements. In addition,
NIST traceable calibration and certificates are available
for your special needs. |
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KPV9000 Electronic Gas Flowmeters
Click on image to view or download data sheet.
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Series KPV9000 Electronic Gas Flowmeters
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GENERAL INFORMATION
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The KPV-Series Flowmeter accurately measures the flowrate of non-hazardous, inert gases with an accuracy of ±2% of full scale. The standard output for the KPV meter is 0.2-2.7 VDC; the meter is also available with an integral or remote digital display, or 4-20 mA current signal. The flowmeters are available with full-scale ranges from 50 CCM to 50 LPM, with 50:1 turndowns. KPV9000 Series meters can be installed in any orientation with no effect on the flowrate. All units are supplied with an aluminum body, high-impact polycarbonate case and brass compression fittings.
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PRINCIPLES OF OPERATION
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The flowrate is determined by measuring the pressure drop across a laminar flow element . As gases move through the flow element, the flow becomes laminar; as a result, the flowrate is linearly proportional to any change in pressure. This creates an accurate output signal, which can be displayed or transmitted as an analog signal. The KPV Series flowmeters measure volumetric flowrate, making them ideal for purging applications.
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KPV Meter Specifications
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RESPONSE TIME:
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<50 MILLISEC
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ACCURACY:
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±2% FULL SCALE
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REPEATABILITY AT CONSTANT
TEMPERATURE:
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±1% FULL SCALE
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TURNDOWN RATIO:
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50:1
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PRESSURE DROP:
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<0.75 PSI
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TEMPERATURE RANGE:
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10-50° C
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SUPPLY VOLTAGE*:
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5.3-26 VDC
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SUPPLY CURRENT**:
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3 mA
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OUTPUT VOLTAGE:
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0.2-2.7 V
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OUTPUT SPAN:
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2.5 V
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OPTIONAL OUTPUT CURRENT:
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4-20mA
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MAXIMUM INPUT PRESSURE:
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100 PSIG
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*Reverse polarity protection to 15 VDC maximum
**10 mA for units with display and RS232 output
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KPV Series Flow Rates
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CCM OF AIR
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MODEL CODE
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KPV050CCM*
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KPV100CCM*
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KPV200CCM*
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KPV500CCM*
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LPM OF AIR
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.02-1
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.04-2
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.1-5
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.4-20
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1-50
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KPV001LPM*
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KPV002LPM*
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KPV005LPM*
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KPV020LPM*
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KPV050LPM*
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(*) DISPLAY/OUTPUT OPTIONS
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MODEL CODE
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DESCRIPTION
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00**
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NO DISPLAY, VOLTAGE OUTPUT ONLY
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0C**
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NO DISPLAY. 4-20mA OUTPUT
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D0**
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DISPLAY, VOLTAGE OUTPUT
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DS**
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DISPLAY, VOLTAGE OUTPUT & RS232 Port
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(**)STANDARD GAS OPTIONS
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AIR
O2
N2
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A
O
N
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CO
CO2
ARGON
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CO
C
AR
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DIMENSIONS
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INCHES
(MILLILETERS)
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RANGE
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A
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B
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C
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D
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UP TO 5 LPM
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3.47
(88.14)
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.72
(18.29)
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.365
(9.27)
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1/8" NPT X 1/4" COMPRESSION FITTING
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20 LPM
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3.75
(95.25)
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.996
(25.3)
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.584
(14.83)
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1/4" NPT X 1/4" COMPRESSION FITTING
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50 LPM
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3.875
(98.43)
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1.126
(28.6)
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.714
(18.14)
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1/4" NPT X 1/4" COMPRESSION FITTING
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Accessory Products
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-
PVPS - 120 VAC TO 12 VDC POWER ADAPTER
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PVPS220 -220 VAC TO 12 VDC POWER ADAPTER
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ESC062 -6' RIBBON CABLE WITH FEMALE "D" CONNECTORS AND RS232 SERIAL COMMUNICATION PORTS.
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CALL FOR DETAILS.
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