Fluke 721Ex Precision Pressure Calibrator
The 721Ex can be configured by selecting either a 16 PSI (1.1 bar) or 36 psi (2.48 bar) low pressure sensor then add any of 7 high pressure ranges including 100, 300, 500, 1000, 1500, 3000 or 5000 psi (6.9, 20, 24.5, 69, 103.4, 200, 345 bar).
- Intrinsically Safe (721Ex version only) – IECEx and Atex Ex ia IIB T3 Gb (Zone 1)
- Ideal for gas flow calibration (custody transfer) applications
- Two isolated, stainless steel, pressure sensors with 0.025 % accuracy
- Pt100 RTD input for temperature measurement, (probe optional)
- Switch test on both pressure inputs
- Pressure displayed in the user’s choice of 19 engineering units
- Large backlit graphic display can display up to three inputs simultaneously
- Store five instrument setups for recall and use
- Description
- Additional information
- Specifications
Description
The Fluke 721Ex is a precision pressure calibrator designed specifically for use in hazardous areas. It’s a compact and versatile tool that offers high accuracy and reliable performance in potentially explosive environments.
Key Features:
- Intrinsically Safe: Meets stringent safety standards for use in hazardous locations, ensuring safe operation in areas with explosive gases.
- Dual Pressure Sensors: Features two isolated, high-accuracy pressure sensors for simultaneous static and differential pressure measurements.
- High Accuracy: Provides precise pressure measurements with 0.025% accuracy, ensuring reliable calibration results.
- Wide Pressure Ranges: Available in various models to cover a wide range of pressure measurement needs.
- Compact and Portable: Lightweight and compact design makes it easy to carry and use in the field.
- User-Friendly Interface: Intuitive controls and a clear display simplify operation.
- Rugged and Durable: Built to withstand harsh environmental conditions.
Applications:
- Gas Flow Calibration: Ideal for calibrating flow computers and instruments used in gas flow measurement, particularly in custody transfer applications.
- Process Control: Calibrating pressure transmitters, sensors, and gauges in various industrial processes.
- Field Service and Maintenance: On-site calibration and troubleshooting of pressure instruments in hazardous locations.
By combining high accuracy, intrinsic safety, and a compact design, the Fluke 721Ex is a valuable tool for technicians and engineers working in hazardous environments who require reliable and precise pressure measurements.
Additional information
| Brand | Fluke Calibration |
|---|
Specifications: Fluke 721Ex Precision Pressure Calibrator
| Specifications 1-Year | |||
| Fluke-721Ex-1601 | Low pressure sensor | ||
| Range | Resolution | Accuracy | |
| -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-721Ex-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-721Ex-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-721Ex-1610 | Low pressure sensor | ||
| 0 psi to +1000 psi, 0.00 bar to 69 bar |
0.1 psi, 0.001 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-721Ex-1615 | Low pressure sensor | ||
| Range | Resolution | Accuracy | |
| -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-721Ex-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-721Ex-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-721Ex-3601 | Low pressure sensor | ||
| Range | Resolution | Accuracy | |
| -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-721Ex-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-721Ex-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-721Ex-3610 | Low pressure sensor | ||
| Range | Resolution | Accuracy | |
| -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-721Ex-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-721Ex-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-721Ex-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 +45°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 |
| 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 | |||
| Available Pressure Engineering Units | |||
| ATEX | Ex ia IIB T3 Gb (Ta= -10… +45 °C) | ||
| KEMA 10 ATEX 0168X | |||
| IECEx | Ex ia IIB T3 Gb (Ta= -10…+45 °C) | ||
| II 2 G IECEx CSA 10.0013X | |||
