Free Delivery Over £249*

Next Day Delivery*

60 Day Returns Guarantee

Fluke 721EX Intrinsically Safe Precision Pressure Calibrator (Select Pressure Range)

Fluke
SKU: FLUKE721EX-CONF
  • Intrinsically Safe Precision Pressure Calibrator
  • Highly accurate dual sensor inputs
  • Choice of pressure and range
More Info

"Buy a Fluke, get a FREE Fluke" promotion. Spend £150 or more on any qualified Fluke product(s) and claim a FREE Fluke gift!
[Click here to learn more] Offer is valid from 1st March to 31st August 2024.

Fluke 721EX Intrinsically Safe Precision Pressure Calibrator (Select Pressure Range)

The Fluke 721EX Intrinsically Safe Precision Pressure Calibrator with dual isolated pressure sensors ideal for gas flow calibration (custody transfer) applications. The Fluke 721EX is a configurable product that is available to purchase with either a 16 PSI (1.1 bar) or 36 PSI (2.48 bar) low pressure sensor which can be added to a high pressure range including 300, 1500 and 5,000 psi depending on model chosen.

The Fluke 721EX range is intrinsically safe calibrator meeting IECEx and ATEX Ex iA IIB T3 GB (zone 1) standards. The two isolated pressure sensors are made with stainless steel and provide an accuracy of 0.025%. With an optional Pt100 RTDS input probe, temperature measurements can also be measured. With the Fluke 721Ex, users can measure mA signals from 4 to 20mA.

Fluke 721Ex Specifications

Model Description Range Sensor 1 Resolution sensor 1 Accuracy sensor 1 Range Sensor 2 Resolution sensor 2 Accuracy sensor 2
Fluke-721Ex-1603

Dual Sensor Pressure Calibrator,

16 PSIG, 300 PSIG

-14 psi to +16 psi

-0.97 bar to 1.1 bar

0.001 psi

0.0001 bar

 0.025% of full scale

-12 psi to + 300 psi

-0.83 bar to 20 bar

0.01 psi

0.001 bar

 0.025% of full scale
Fluke-721Ex-1615

Dual Sensor Pressure Calibrator,

16 PSIG, 1500 PSIG

-14 psi to +16 psi

-0.97 bar to 1.1 bar

0.001 psi

0.0001 bar

 0.025% of full scale

0 psi to + 1500 psi

0 bar to 103.4 bar

0.1 psi

0.001 bar

 0.025% of full scale
Fluke-721Ex-1630

Dual Sensor Pressure Calibrator,

16 PSIG, 1500 PSIG

-14 psi to +16 psi

-0.97 bar to 1.1 bar

0.001 psi

0.0001 bar

 0.025% of full scale

0 psi to + 3000 psi

0 bar to 200 bar

0.1 psi

0.01 bar

 0.025% of full scale
Fluke-721Ex-3615

Dual Sensor Pressure Calibrator,

36 PSIG, 1500 PSIG

-14 psi to +36 psi

-0.97 bar to 2.48 bar

0.001 psi

0.0001 bar

 0.025% of full scale

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

Dual Sensor Pressure Calibrator,

36 PSIG, 3000 PSIG

-14 psi to +36 psi

-0.97 bar to 2.48 bar

0.001 psi

0.0001 bar

 0.025% of full scale

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

Dual Sensor Pressure Calibrator,

36 PSIG, 5000 PSIG

-14 psi to +36 psi

-0.97 bar to 2.48 bar

0.001 psi

0.0001 bar

 0.025% of full scale

0 psi to + 5000 psi

0.00 bar to 345 bar

0.1 psi

0.01 bar

 0.035% of full scale

Switch tests can be performed on both pressure inputs and pressure can be displayed with user defined choice of 19 engineering units. The Fluke 721 boasts a large backlit graphic display, that allows for up to three inputs to be viewed simultaneously. Five instruments can be stored on the device for easier setup and recall.

The Fluke 721EX is IP40 protected and offers a battery life of ups to 35 hours of typical usage from four AA batteries.

Key Features

  • Precision pressure calibrator with a selection of models available
  • Choose sensor type and pressure range
  • Either a 16 PSI (1.1 bar) or 36 PSI (2.48 bar) low pressure sensor
  • High pressure range including 300, 1500 and 5,000 psi
  • Intrinsically safe calibrator meeting IECEx and ATEX Ex iA IIB T3 GB (zone 1) standards
  • Gas flow calibration (custody transfer) applications
  • Large backlit display
  • Display up to three inputs simultaneously
  • Store five instrument setups and recall
  • Switch tests on both pressure inputs
  • Pressure displayed in user defined choice of 19 engineering units
  • Measures 4 to 20 mA signals
  • Up to 35 hours battery life

What's In The Box?

  • Fluke 721Ex Dual Sensor Precision Pressure Calibrator (select pressure range)
  • Soft case
  • Four AA batteries
  • Manual
  • Traceable calibration certificate
  • Test leads
Specification

General specifications

  • Instrument set recall: Last used on power-up
  • Environmental:
    Operating temperature -10 °C to +50 °C (Fluke 721)
    Storage temperature (without batteries) -20 °C to +60 °C
  • Altitude: 2000m
  • Ingress protection: IP-40
  • Power requirements: 6.0v dc
  • Battery life: >35 hours, typical usage
  • Batteries required: 4 x standard AA cells
  • Dimensions (H x W x D): 7.9 x 4.3 x 2.3" (20 x 11 x 5.8cm)
  • Weight: 0.03539 KG (1lb 3oz)
  • Connectors/ports pressure: Two 1/8 in NPT, RTD probe

Electrical and temperature measurement

Function: mA measure

  • Range: 0 to 24 mA
  • Resolution: 0.001 mA
  • Accuracy:
    ±0.015% of rdg
    ±0.002mA

Function: Temperature measure (RTD/Ohms)

  • Range:
    -40ºC to 150ºC
    _40ºF to 302ºF
  • Resolution:
    0.01ºC
    0.01ºF
  • Accuracy:
    ±0.015% of rdg
    ±0.002V
    ±0.02 ohms; ±0.1°C (±0.2°F) ±0.25 degC(±0.45 degF)
    combined uncertainty when using 720 RTD probe 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

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

User selectable 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
Label Type Size Download
pdf Fluke 721 Dual Sensor Precision Pressure Calibrator Datasheet pdf 754 KB Download