Fluke 721 and 721Ex Precision Pressure Calibrators Technical Data Pressure calibration and temperature measurement for custody transfer applications The Fluke 721 and 721Ex Precision Pressure Calibrators with dual isolated pressure sensors are the ideal tool for gas custody transfer applications allowing you to take simultaneous static and differential pressure measurements with a single tool. Product highlights The 721 and 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 * 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 * Internal 24 V loop power supply can power a transmitter under test (721 models only) * Measure up to 30 V dc, check 24 V loop power supplies (721 models only) * Extend pressure measurement range with connection to one of 50 external 750 series pressure modules from 0 to 1 inH20 to 10,000 psi (2.5 mBar to 690 bar) (721 models only) * Large backlit graphic display can display up to three inputs simultaneously * Store five instrument setups for recall and use Specifications 1-year Low pressure sensor Model Description Resolution sensor 2 Fluke-721-1601 Dual Sensor Pressure CaliFluke-721Ex-1601 brator, 16 PSIG, 100 PSIG -12 psi to +100 psi -0.83 bar to 6.9 bar 0.01 psi 0.0001 bar Fluke-721-1603 Dual Sensor Pressure CaliFluke-721Ex-1603 brator, 16 PSIG, 300 PSIG -12 psi to +300 psi -0.83 bar to 20 bar 0.01 psi 0.001 bar Fluke-721-1605 Dual Sensor Pressure CaliFluke-721Ex-1605 brator, 16 PSIG, 500 PSIG -12 psi to +500 psi -0.83 bar to 34.5 bar 0.01 psi 0.001 bar 0 psi to +1000 psi 0.00 bar to 69 bar 0.1 psi 0.001 bar Fluke-721-1615 Dual Sensor Pressure CaliFluke-721Ex-1615 brator, 16 PSIG, 1500 PSIG Resolution sensor 1 High pressure sensor Range sensor 2 Fluke-721-1610 Dual Sensor Pressure CaliFluke-721Ex-1610 brator, 16 PSIG, 1000 PSIG Range sensor 1 Accuracy sensor 1 -14 psi to +16 psi -0.97 bar to 1.1 bar 0 psi to +3000 psi 0.00 bar to 200 bar 0.1 psi 0.01 bar 0 psi to +5000 psi 0.00 bar to 345 bar 0.1 psi 0.01 bar -12 to +100 psi -0.83 bar to 6.9 bar .01 psi 0.0001 bar Fluke-721-3603 Dual Sensor Pressure CaliFluke-721Ex-3603 brator, 36 PSIG, 300 PSIG -12 psi to +300 psi -0.83 bar to 20 bar 0.01 psi 0.001 bar Fluke-721-3605 Dual Sensor Pressure CaliFluke-721Ex-3605 brator, 36 PSIG, 500 PSIG -12 psi to +500 psi -0.83 bar to 34.5 bar 0.01 psi 0.001 bar 0 psi to +1000 psi 0.00 bar to 69 bar 0.1 psi 0.001 bar 0.001 psi, 0.0001 bar Fluke-721-3601 Dual Sensor Pressure CaliFluke-721Ex-3601 brator, 36 PSIG, 100 PSIG Fluke-721-3610 Dual Sensor Pressure CaliFluke-721Ex-3610 brator, 36 PSIG, 1000 PSIG Fluke-721-3615 Dual Sensor Pressure CaliFluke-721Ex-3615 brator, 36 PSIG, 1500 PSIG 0.025 % of full scale -14 psi to +36 psi -0.97 bar to 2.48 bar 0.035 % of full scale 0.025 % of full scale 0 psi to +1500 psi 0.1 psi 0.00 bar to 103.4 bar 0.01 bar Fluke-721-3630 Dual Sensor Pressure CaliFluke-721Ex-3630 brator, 36 PSIG, 3000 PSIG 0 psi to +3000 psi 0.00 bar to 200 bar 0.1 psi 0.01 bar Fluke-721-3650 Dual Sensor Pressure CaliFluke-721Ex-3650 brator, 36 PSIG, 5000 PSIG 0 psi to +5000 psi 0.00 bar to 345 bar 0.1 psi 0.01 bar General specifications 0.025 % of full scale 0 psi to +1500 psi 0.1 psi 0.00 bar to 103.4 bar 0.001 bar Fluke-721-1630 Dual Sensor Pressure CaliFluke-721Ex-1630 brator, 16 PSIG, 3000 PSIG Fluke-721-1650 Dual Sensor Pressure CaliFluke-721Ex-1650 brator, 16 PSIG, 5000 PSIG Accuracy sensor 2 0.035 % of full scale Electrical and temperature measurement 1-year Instrument setup recall Last used on power-up Function Range Resolution Accuracy Environmental Operating temperature -10 C to +50 C (Fluke 721) Operating temperature -10 C to +45 C (Fluke 721Ex) Storage temperature (without batteries) -20 C to +60 C 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; 0.1C (0.2F) 0.25 degC (0.45 degF) combined uncertainty when using 720 RTD probe accessory Loop power supply** 24V N/A 24 mA @ 24V Altitude 2,000 meters Ingress protection IP-40 Power requirements 6.0 v dc Battery life >35 hours, typical usage Batteries required (4) Standard AA cells Dimentions (HxWxD) 7.9" X 4.3" X 2.3" (20 cm X 11 cm X 5.8 cm) Weight 03539 kg (1 lb 3 oz) Connectors/ports pressure Two, 1/8 in NPT, 750P Series Pressure Module (721 models only); RTD Probe 2 Fluke Corporation Fluke 721 and 721Ex Precision Pressure Calibrators *Temperature measurement requires optional Fluke-720RTD Pt-100 RTD probe available as an accessory **721 models only 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 Ordering information Fluke-721-1601 Fluke-721Ex-1601 Dual Sensor Pressure Calibrator 16 PSIG, 100 PSIG Fluke-721-1603 Fluke-721Ex-1603 Dual Sensor Pressure Calibrator 16 PSIG, 300 PSIG Fluke-721-1605 Fluke-721Ex-1605 Dual Sensor Pressure Calibrator 16 PSIG, 500 PSIG Fluke-721-1610 Fluke-721Ex-1610 Dual Sensor Pressure Calibrator 16 PSIG, 1000 PSIG Fluke-721-1615 Fluke-721Ex-1615 Dual Sensor Pressure Calibrator 16 PSIG, 1500 PSIG Fluke-721-1630 Fluke-721Ex-1630 Dual Sensor Pressure Calibrator 16 PSIG, 3000 PSIG Fluke-721-1650 Fluke-721Ex-1650 Dual Sensor Pressure Calibrator 16 PSIG, 5000 PSIG Fluke-721-3601 Fluke-721Ex-3601 Dual Sensor Pressure Calibrator 36 PSIG, 100 PSIG Fluke-721-3603 Fluke-721Ex-3603 Dual Sensor Pressure Calibrator 36 PSIG, 300 PSIG Fluke-721-3605 Fluke-721Ex-3605 Dual Sensor Pressure Calibrator 36 PSIG, 500 PSIG Fluke-721-3610 Fluke-721Ex-3610 Dual Sensor Pressure Calibrator 36 PSIG, 1000 PSIG Fluke-721-3615 Fluke-721Ex-3615 Dual Sensor Pressure Calibrator 36 PSIG, 1500 PSIG Fluke-721-3630 Fluke-721Ex-3630 Dual Sensor Pressure Calibrator 36 PSIG, 3000 PSIG Fluke-721-3650 Fluke-721Ex-3650 Dual Sensor Pressure Calibrator 36 PSIG, 5000 PSIG Fluke-720RTD RTD Probe for Fluke-721, 721Ex and 719Pro Fluke-720URTDA Universal RTD adapter for Fluke-721, 721Ex and 719Pro Included: ** Soft case ** Four (4) AA batteries ** Manual ** Traceable calibration certificate ** Test leads 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@4C, cmH2O@20C, mH2O@4C, mH2O@20C, inH2O@4C, inH2O@20C, inH2O@60F, mmHg@0C, inHg@0C, ftH2O@4C, ftH2O@20C, ftH2O@60F Fluke. Keeping your world up and running.(R) Fluke Corporation PO Box 9090, Everett, WA 98206 U.S.A. Fluke Europe B.V. PO Box 1186, 5602 BD Eindhoven, The Netherlands For more information call: In the U.S.A. (800) 443-5853 or Fax (425) 446-5116 In Europe/M-East/Africa +31 (0) 40 2675 200 or Fax +31 (0) 40 2675 222 In Canada (800)-36-FLUKE or Fax (905) 890-6866 From other countries +1 (425) 446-5500 or Fax +1 (425) 446-5116 Web access: http://www.fluke.com (c)2013, 2015 Fluke Corporation. Specifications subject to change without notice. Printed in U.S.A. 3/2015 6000077B_EN Pub_ID: 12085-eng 3 Fluke Corporation Fluke 721 and 721Ex Precision Pressure Calibrators Modification of this document is not permitted without written permission from Fluke Corporation.