Fluke 721 Pressure Calibration Instruments
- Precision pressure calibrator with dual isolated sensors for gas flow calibration (custody transfer) applications
- Features two isolated, stainless steel, pressure sensors with 0.025% accuracy
- Includes Pt100 RTD input for temperature measurement (probe optional)
- Measures 4 to 20 mA signals
- Provides internal 24 V loop power supply to power a transmitter under test
- Description
- Additional information
- Specifications
Description
The Fluke 721 is a precision pressure calibrator specifically designed for gas flow calibration, particularly in custody transfer applications. It excels in providing accurate and reliable measurements for ensuring precise gas volume calculations.
Key Features and Benefits:
- Dual Isolated Sensors: The 721 boasts two independent pressure sensors, enabling simultaneous measurement of both static and differential pressure. This unique capability significantly enhances accuracy in gas flow calibration, as it eliminates the need for separate measurements and minimizes potential errors.
- High Accuracy and Reliability: The 721 delivers highly accurate pressure measurements, minimizing uncertainty and ensuring reliable calibration results. This is crucial in custody transfer applications where precise gas volume measurements are critical for commercial transactions.
- Temperature Compensation: The 721 includes a temperature measurement function (with an optional RTD probe). This allows for accurate compensation of pressure readings based on ambient temperature variations, further enhancing the accuracy and reliability of calibration results.
Applications:
- Gas Custody Transfer: The 721 is ideally suited for calibrating instruments used in gas custody transfer, ensuring accurate measurement of gas volumes for commercial transactions.
- Flow Computer Calibration: It is widely used to test and calibrate flow computers, verifying their accuracy in calculating gas flow rates.
- Process Control: The 721 can also be used to calibrate pressure transmitters and other instruments used to monitor and control gas flow in industrial processes.
The Fluke 721 is a valuable asset for professionals involved in gas flow measurement and calibration. Its unique dual-sensor design, coupled with high accuracy, temperature compensation, and rugged construction, makes it a reliable and efficient tool for ensuring accurate gas volume calculations and optimizing industrial processes.
Additional information
| Brand | Fluke Calibration |
|---|
Specifications: Fluke 721 Pressure Calibration Instruments
| Specifications 1-Year | |||
| Fluke-721-1601 | Range | Resolution | Accuracy |
| Low pressure sensor | |||
| -14 psi to +16 psi, -0.97 bar to 1.1 bar |
0.001 psi, 0.0001 bar |
0.025% of full scale | |
| High pressure sensor | |||
| -12 psi to +100 psi, -0.83 bar to 6.9 bar |
0.01 psi, 0.0001 bar |
0.025% of full scale | |
| Fluke-721-1603 | Low pressure sensor | ||
| -14 psi to +16 psi, -0.97 bar to 1.1 bar |
0.001 psi, 0.0001 bar |
0.025% of full scale | |
| High pressure sensor | |||
| -12 psi to +300 psi, -0.83 bar to 20 bar |
0.01 psi, 0.001 bar |
0.025% of full scale | |
| Fluke-721-1605 | Low pressure sensor | ||
| -14 psi to +16 psi, -0.97 bar to 1.1 bar |
0.001 psi, 0.0001 bar |
0.025% of full scale | |
| High pressure sensor | |||
| -12 psi to +500 psi, -0.83 bar to 34.5 bar |
0.01 psi, 0.001 bar |
0.025% of full scale | |
| Fluke-721-1610 | Low pressure sensor | ||
| -14 psi to +16psi, -0.97 bar to 1.1 bar |
0.001 psi, 0.0001 bar |
0.025% of full scale | |
| High pressure sensor | |||
| 0 psi to +1000 psi, 0.00 bar to 69 bar |
0.1 psi, 0.001 bar |
0.025% of full scale | |
| Fluke-721-1615 | Range | Resolution | Accuracy |
| Low pressure sensor | |||
| -14 psi to +16 psi, -0.97 bar to 1.1 bar |
0.001 psi, 0.0001 bar |
0.025% of full scale | |
| High pressure sensor | |||
| 0 psi to +1500 psi, 0.00 bar to 103.4 bar |
0.1 psi, 0.001 bar |
0.025% of full scale | |
| Fluke-721-1630 | Low pressure sensor | ||
| -14 psi to +16 psi, -0.97 bar to 1.1 bar |
0.001 psi, 0.0001 bar |
0.025% of full scale | |
| High pressure sensor | |||
| 0 psi to +3000 psi, 0.00 bar to 200 bar |
0.1 psi, 0.01 bar |
0.025% of full scale | |
| Fluke-721-1650 | Low pressure sensor | ||
| -14 psi to +16 psi, -0.97 bar to 1.1 bar |
0.001 psi, 0.0001 bar |
0.025% of full scale | |
| High pressure sensor | |||
| 0 psi to +5000 psi, 0.00 bar to 345 bar |
0.1 psi, 0.01 bar |
0.035% of full scale | |
| Fluke-721-3601 | Range | Resolution | Accuracy |
| Low pressure sensor | |||
| -14 psi to +36 psi, -0.97 bar to 2.48 bar |
0.001 psi, 0.0001 bar |
0.025% of full scale | |
| High pressure sensor | |||
| -12 to +100 psi, -0.83 bar to 6.9 bar |
.01 psi, 0.0001 bar |
0.025% of full scale | |
| Fluke-721-3603 | Low pressure sensor | ||
| -14 psi to +36 psi, -0.97 bar to 2.48 bar |
0.001 psi, 0.0001 bar |
0.025% of full scale | |
| High pressure sensor | |||
| -12 psi to +300 psi, -0.83 bar to 20 bar |
0.01 psi, 0.001 bar |
0.025% of full scale | |
| Fluke-721-3605 | Low pressure sensor | ||
| -14 psi to +36 psi, -0.97 bar to 2.48 bar |
0.001 psi, 0.0001 bar |
0.025% of full scale | |
| High pressure sensor | |||
| -12 psi to +500 psi, -0.83 bar to 34.5 bar |
0.01 psi, 0.001 bar |
0.025% of full scale | |
| Fluke-721-3610 | Range | Resolution | Accuracy |
| Low pressure sensor | |||
| -14 psi to +36 psi, -0.97 bar to 2.48 bar |
0.001 psi, 0.0001 bar |
0.025% of full scale | |
| High pressure sensor | |||
| 0 psi to +1000 psi, 0.00 bar to 69 bar |
0.1 psi, 0.001 bar |
0.025% of full scale | |
| Fluke-721-3615 | Low pressure sensor | ||
| -14 psi to +36 psi, -0.97 bar to 2.48 bar |
0.001 psi, 0.0001 bar |
0.025% of full scale | |
| High pressure sensor | |||
| 0 psi to +1500 psi, 0.00 bar to 103.4 bar |
0.1 psi, 0.01 bar |
0.025% of full scale | |
| Fluke-721-3630 | Low pressure sensor | ||
| -14 psi to +36 psi, -0.97 bar to 2.48 bar |
0.001 psi, 0.0001 bar |
0.025% of full scale | |
| High pressure sensor | |||
| 0 psi to +3000 psi, 0.00 bar to 200 bar |
0.1 psi, 0.01 bar |
0.025% of full scale | |
| Fluke-721-3650 | Low pressure sensor | ||
| -14 psi to +36 psi, -0.97 bar to 2.48 bar |
0.001 psi, 0.0001 bar |
0.025% of full scale | |
| High pressure sensor | |||
| 0 psi to +5000 psi, 0.00 bar to 345 bar |
0.1 psi, 0.01 bar |
0.035% of full scale | |
| General Specifications | |||
| Instrument setup recall | Last used on power-up | ||
| Environmental | Operating temperature -10°C to +50°C Storage temperature (without batteries) -20°C to +60°C |
||
| Altitude | 2,000 m | ||
| Ingress protection | IP-40 | ||
| Power requirements | 6.0 V DC | ||
| Battery life | >35 hours, typical usage | ||
| Batteries required | (4) Standard AA cells | ||
| Dimensions (H x W x D) | 7.9 x 4.3 x 2.3 in (20 x 11 x 5.8 cm) | ||
| Weight | 03539 kg (1 lb 3 oz) | ||
| Connectors/ports pressure | Two, 1/8 in NPT, 700P Series Pressure Module; RTD Probe | ||
| Electrical and Temperature Measurement 1-Year | |||
| Function | Range | Resolution | Accuracy |
| mA measure | 0 to 24 mA | 0.001 mA | ±0.015% of rdg ±0.002mA |
| V DC measure | 0 to 30 V DC | 0.001 V | ±0.015% of rdg ±0.002 V |
| Temperature measure (RTD/ Ohms)1 | -40°C to 150°C (-40°F to 302°F) |
0.01°C, 0.01°F | ±0.015% of rdg ±0.02 ohms ±0.1°C (±0.2°F) ±0.25°C (±0.45°F) combined uncertainty when using 720 RTD probe accessory |
| Loop power supply | 24 V | N/A | 24 mA @ 24 V |
| 1. Temperature measurement requires optional Fluke-720RTD Pt-100 RTD probe available as an accessory | |||
| Temperature Effect | |||
| No effect on accuracy on all functions from 15°C to 35°C | |||
| Add ±0.002% F.S./°C for temps outside of 15°C to 35°C | |||
| Available Pressure Engineering Units | |||
| psi, bar, mbar, kPa, kgcm2, cmH2O @ 4°C, cmH2O @ 20°C, mH2O @ 4°C, mH2O @ 20°C, inH2O @ 4°C, inH2O @ 20°C, inH2O @ 60°F, mmHg @ 0°C, inHg @ 0°C, ftH2O @ 4°C, ftH2O @ 20°C, ftH2O @ 60°F | |||
