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Fluke 721Ex Intrinsically Safe Precision Pressure Calibrator

Engineered to specifically address gas flow computers, the accuracy and efficiency of the new Fluke 721Ex Dual Range Pressure Calibrator make it the perfect pressure calibrator for gas custody transfer calibration. With IECEx and Atex Ex ia IIB T3 Gb (Zone 1) ratings, the 721Ex has been designed for use in classified areas and eliminates the need for declassification or hot work permits.  The 721Ex is available in the same 14 model ranges as Fluke’s original 721 dual pressure calibrator, and can be dual-sensor configured to eliminate a second tool in flow computer calibration by selecting a low pressure sensor and adding one of 7 high pressure ranges.

The Fluke 721Ex also retains the 721’s ability to use a 720RTD probe for temperature measurement and ships standard with soft case including storage for the RTD probe. With a gas custody transfer focus and a complete set of pressure and temperature measurement features, the Fluke 721Ex is one of the most dynamic and valuable pressure calibrators available today. For more information, request a quote or contact one of Transcat’s sales & technical support representatives.

 



 

Fluke 721Ex Dual Pressure Calibrator Features

  • Two isolated, stainless steel, pressure sensors with 0.025% F.S. accuracy eliminating the need to carry more than one tool for calibrating flow computers
  • Pt100 RTD input for temperature measurement, accurate to 0.1°C (0.2°F) allowing you to measure temperature without a separate thermometer (requires 720RTD probe sold separately)
  • 14 available pressure range configurations standard
  • Temperature-compensation ensures accuracy in field applications
  • Large graphic style LCD with backlight can be configured to display up to 3 inputs simultaneously
  • (i.e. pressure 1, pressure 2, and RTD)
  • Ideal for gas flow calibration (custody transfer) applications
  • Pressure displayed in the user’s choice of 19 engineering units
  • Switch test on both Pressure inputs
  • Operating mode layers support simple measurements to complex applications
  • Up to five frequently used setups can be stored; last setup automatically recalled on power-up
  • % Error and damping functions
  •  

 

Compare Products in this Series See all Results

Product
Image
NAME, DESCRIPTION
AND ORDER #
Stock
Status
UNIT PRICE QTY
Fluke 721EX-1601 Fluke 721EX-1601

Dual Sensor Pressure Calibrator intrins. safe 16 psi, 100 PSIG

Order #: 721EX-1601

Usually ships in 7-10 days

$2,495.00 USD
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Fluke 721EX-1603 Fluke 721EX-1603

Dual Sensor Pressure Calibrator intrins. safe 16 psi, 300 PSIG

Order #: 721EX-1603

Usually ships in 7-10 days

$2,495.00 USD
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Fluke 721EX-1605 Fluke 721EX-1605

Dual Sensor Pressure Calibrator intrins. safe 16 psi, 500 PSIG

Order #: 721EX-1605

Usually ships in 7-10 days

$2,495.00 USD
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Fluke 721EX-1610 Fluke 721EX-1610

Dual Sensor Pressure Calibrator intrins. safe 16 psi, 1000 PSIG

Order #: 721EX-1610

Usually ships in 7-10 days

$2,495.00 USD
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Fluke 721EX-1615 Fluke 721EX-1615

Dual Sensor Pressure Calibrator intrins. safe 16 psi, 1500 PSIG

Order #: 721EX-1615

Usually ships in 7-10 days

$2,495.00 USD
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Fluke 721EX-1630 Fluke 721EX-1630

Dual Sensor Pressure Calibrator intrins. safe 16 psi, 3000 PSIG

Order #: 721EX-1630

Usually ships in 7-10 days

$2,495.00 USD
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Fluke 721EX-1650 Fluke 721EX-1650

Dual Sensor Pressure Calibrator intrins. safe 16 psi, 5000 PSIG

Order #: 721EX-1650

Usually ships in 7-10 days

$2,495.00 USD
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Fluke 721EX-3601 Fluke 721EX-3601

Dual Sensor Pressure Calibrator intrins. safe 36 psi, 100 PSIG

Order #: 721EX-3601

Usually ships in 7-10 days

$2,495.00 USD
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Fluke 721EX-3605 Fluke 721EX-3605

Dual Sensor Pressure Calibrator intrins. safe 36 psi, 500 PSIG

Order #: 721EX-3605

Usually ships in 7-10 days

$2,495.00 USD
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Fluke 721EX-3610 Fluke 721EX-3610

Dual Sensor Pressure Calibrator intrins. safe 36 psi, 1000 PSIG

Order #: 721EX-3610

Usually ships in 7-10 days

$2,495.00 USD
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Overview :

Product Highlights

  • Intrinsically Safe – 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
  • Switch test on both pressure inputs
  • Pressure displayed in the user’s choice of 19 engineering units
  • Pt100 RTD input for temperature measurement, (probe optional)
  • Measures 4 to 20 mA signals
  • Large backlit graphic display can display up to three inputs simultaneously
  • Store five instrument setups for recall and use

Specifications :

Specifications 1-Year
Low Pressure Sensor Range
-14 psi to +16 PSI,
-0.97 bar to 1.1 bar
Resolution
0.001 PSI,
0.0001 bar
Accuracy
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
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 meters
Ingress Protection IP-40
Power Requirements 6.0 VDC
Battery Life >35 Hours, Typical Usage
Batteries Required (4) Standard AA cells
Dimensions (H x W x D) 7.9 x 4.3 x 2.3in (20 x 11 x 5.8cm)
Weight 03539kg (1lb 3oz)
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
VDC Measure 0 to 30 VDC 0.001V ±0.015% of Rdg
±0.002V
*Temperature Measure (RTD/Ohms) -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 24V N/A 24 mA @ 24V
*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 % FS/°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
721Ex Approval Details
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
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