Fluke Calibration’s constant volume valve is a pneumatically actuated needle valve with a return line connecting the inlet to a coaxial compensator. Needle displacement is matched by an equal and opposite volume displacement on the compensator.
Fluke Constant Volume Valve
The constant volume valve is used in piston gauge crossfloats and other applications in which two high pressures need to be disconnected and reconnected with minimal purturbations on either side.
Related products
Close
Fluke 719-30G Electric Pressure Calibrator, 30 PSI
Features
- Fluke 719 30G
- Range: -12 to 36 PSI
- Resolution: 0.001 PSI,
- Accuracy: up to 0.025%
- Fluke 719 100G
- Range: -12 to 120 PSI
- Resolution: 0.01 PSI
- Accuracy: up to 0.025%
- mA:
- Range: 0 to 24 mA
- Accuracy: 0.015 % Rdg + 2 counts
- Max load: 1000Ω; 750 Ω ohm in HART mode
- Pump to:
- 30 PSI in less than 15 seconds (1m of 1/8″ test hose)
- 100 PSI in less than 45 seconds (1m of 1/8″ test hose)
- 5000 pump cycles between rebuilds
- Pump life: 20,000 calibration cycle
- Safety: CSA C22.2 No. 1010.1:1992
- EMC: EN50082-1:1992 and EN55022:1994 Class B
Close
Fluke 715 Volt/mA Loop Calibrator
Key features
- Compact, lightweight mA calibrator for measuring loop current (0-20 mA, 4-20 mA) signals
- Delivers very high accuracy—0.01%—and 1 mA resolution
- Measures voltage output process signals from PLCs and transmitters
- Sources or simulates 24 mA loop current
- Sources voltage to 100 mV or 10V
- Provides typical 18 hour battery life
Close
Fluke 726 Precision Multifunction Process Calibrator
Features
- Up to 20V (source), up to 30V (measure)
- 0 to 24mA source and simulate
- Up to 4000Ω resistance
- Frequency up to 15kHz
- RTD and thermocouple compatible
- Combine with a 750P module for pressure
- Memory storage for up to 8 calibration results
- Perform fast linearity tests with auto step & auto ramp
- 24VDC Loop Supply
- 3-year warranty
Close
Fluke 753 Advanced Process Calibrators
Features
- Full-featured documenting process calibrator for calibrating and troubleshooting
- Measures volts, mA, RTDs, thermocouples, frequency, and ohms to test sensors, transmitters and other instruments
- Sources and simulate volts, mA, pressure, thermocouples, RTDs, frequency, ohms, and pressure to calibrate transmitters
- Powers transmitters during test using loop supply with simultaneous mA measurement
- Measures and sources pressure
- Allows you to creates and run automated as-found/as-left procedures to satisfy quality programs or regulations, and record and document results
- Holds up to a full week of downloaded procedures and calibration results
- Offers many flexible features like autostep, custom units, user-entered values during test, one-point and two-point switch testing, square root DP flow testing, programmable measurement delay
- Offers compatibility with DPCTrack2 and many other asset management software packages
- Bright white dual display for reading both sourced and measured parameters simultaneously
- Easy-to-use multi-lingual interface
- Gas gauge and rechargeable Li-Ion battery for 10 hour uninterrupted use
Close
Fluke 771 Milliamp Process Clamp Meter
Features
- 0.2% or reading + 5 counts accuracy at -20.99 mA to 20.99 mA
- 1% or reading + 5 counts accuracy at -21.0 mA to -99.9 mA and 21.0 mA to 99.9 mA
- 0.177 in or 4.5mm max diameter of measurable conductor
- -10° to 55°C operating temperature
- IP40 rating
Close
Fluke 719Pro Electric Pressure Calibrator
Features
- Electric pump for one handed pressure calibration
- Best in class pressure measurement uncertainty of 0.025%
- Measure and source mA with best in class 0.015% accuracy
- Precision pressure adjust vernier for accurate pressure calibration
- Variable release rate bleed valve for easy pressure adjustment
- Programmable pressure calibrator pump limit: eliminates over-pressurization and allows the user to program target pressures for pumping
- Programmable 3-tiered display for maximum flexibility when displaying pressure, temperature, and electrical parameters of your choice
- Display backlight
- Damping, Min/Max, and % error function
- Source mA with simultaneous pressure measurement to test valves and I/Ps
- Simulate mA signals to troubleshoot 4-20 mA loops
- Test pressure switches with built in switch test function
- Power transmitters during test using 24 V loop supply with simultaneous mA measurement
- Precision temperature measurement with the addition of an accessory RTD probe (available as an option)
- Proven cleanout ports reduce pump failures
- Moisture trap included with the unit helps mitigates risk of moisture damage
Applications
- Pressure Instrument Calibration
- Pressure Instrument Maintenance
- Petro-Chemical
- Oil and Gas
- Pharmaceutical
- Water and wastewater
- Food and Beverage
- Power Generation
Close
Fluke 725 Multifunction Process Calibrator
Features
- Up to 30V and 24mA DC
- 0 to 3200Ω resistance
- Up to 10kHz frequency
- 1V peak-to-peak-minimum senitivity
- Combine with a 750P module for pressure
- Store frequently used test setups for later use
Close
Fluke 789 Advanced ProcessMeter
Key features
- Ultimate troubleshooting tool for electricians and instrumentation professionals
- Combines the functionality of a loop calibrator with the power of a precision 1000 V, 440 mA True-RMS digital multimeter
- Provided with optional IR3000FC module for wireless data logging capabilities via Fluke Connect® mobile App
- Includes 24 V loop power supply
- Features a very large dual display with enhanced two-level backlight brightness settings
