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Summary of Contents for Fluke 721Ex
- Page 1 721Ex Pressure Calibrator Users Manual March 2015 © 2015 Fluke Corporation. All rights reserved. Specifications are subject to change without notice. All product names are trademarks of their respective companies.
- Page 2 LIMITED WARRANTY AND LIMITATION OF LIABILITY This Fluke product will be free from defects in material and workmanship for three years from the date of purchase. This warranty does not cover fuses, disposable batteries, or damage from accident, neglect, misuse, alteration, contamination, or abnormal conditions of operation or handling.
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Page 3: Table Of Contents
Table of Contents Title Page Introduction ........................1 Contact Fluke ......................... 1 Safety Information ......................2 Ex-Hazardous Areas ....................4 Measuring Pressure ....................4 Symbols ......................... 5 Standard Equipment....................... 6 Product Features ......................6 Display ........................9 Language Selection ....................11 Home Menu Functionality .................. - Page 4 721Ex Users Manual %ERROR ........................15 MINMAX ........................18 SET UNITS ....................... 19 CONTRAST ......................20 Lock and Unlock Configurations (CFG) ..............20 AUTO OFF ........................ 21 RESOLUTION ......................22 PROBE TYPE ......................22 DAMP ........................24 Measure Pressure ......................25 Media Compatibility .......................
- Page 5 List of Tables Table Title Page Symbols ..........................5 Product Features ........................8 Display Functions ........................10 Ranges and Resolutions ....................... 29 Approved Batteries ........................ 30 User-Replaceable Parts and Accessories ................32...
- Page 6 721Ex Users Manual...
- Page 7 List of Figures Figure Title Page Product Interface ........................7 Display........................... 10 Pressure Switch Connection ....................13 Percent Error Function Connection ..................16 Temperature Measurement with RTD Probe ................. 24 Measure Current ........................26 Pressure-to-Current Transmitter Connections ............... 28 Battery Replacement ......................31 User-Replaceable Parts and Accessories ................
- Page 8 721Ex Users Manual...
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Page 9: Introduction
Introduction The 721Ex Pressure Calibrator (the Product) is a simple to use and versatile pressure calibrator. The two internal pressure sensors are configured with different pressure measurement ranges. One range for lower pressure (P1) and one range for higher pressure (P2). The Product features inputs for mA, switch contacts, and an RTD probe. -
Page 10: Safety Information
721Ex Users Manual • Safety Information Remove all probes, test leads, and accessories before the battery door is A Warning identifies conditions and procedures that are opened. dangerous to the user. A Caution identifies conditions • Do not exceed the Measurement Category... - Page 11 Pressure Calibrator Safety Information • • The battery door must be closed and Check entity parameters before making locked before you operate the Product. any connections to this Product. • • Do not improperly apply pressure. Vacuum Remove the batteries if the Product is not should not be applied to any gauge used for an extended period of time, or if pressure sensor.
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Page 12: Ex-Hazardous Areas
721Ex Users Manual Ex-Hazardous Areas Measuring Pressure An Ex-hazardous area as used in this manual refers to an Warning area made hazardous by the potential presence of For safe operation and maintenance of the flammable or explosive vapors. These areas are also Product, Refer to the table of ranges and referred to as hazardous locations. -
Page 13: Symbols
Conforms to ATEX requirements equipment types in the WEEE Directive Annex I, this product is classed as category 9 "Monitoring and Control Instrumentation" product. Do not dispose of this product as unsorted municipal waste. Go to Fluke’s website for recycling information. -
Page 14: Standard Equipment
721Ex Users Manual Product Features Standard Equipment Figure 1 and Table 2 shows the location of the buttons, Make sure that the Product shipment is complete. It must pressure controls, connection ports, and electrical inputs. include: • The Product •... - Page 15 Pressure Calibrator Product Features ZERO hvf001.eps Figure 1. Product Interface...
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Page 16: Product Features
721Ex Users Manual Table 2. Product Features Item Description Power button. Turns on and off the Product Function buttons. Used to configure the Product. These keys correspond to messages on the display. Zero button. Zeros pressure measurements. -
Page 17: Display
Pressure Calibrator Product Features Notes Display When is pushed to turn on the Product, a The display has two main regions: short startup self-check routine is run. During • The menu bar (located at the bottom of the screen) is that routine, the display shows the current used with the function buttons to access the Product firmware revision level, auto-shutdown status,... -
Page 18: Display Functions
721Ex Users Manual Table 3. Display Functions Item Name Description Number Primary Shows what is being Parameters measured. Shows the percent of the Span 4 mA to 20 mA span. (For Indicator mA functions only.) hvf007.eps Figure 2. Display... -
Page 19: Language Selection
Pressure Calibrator Product Features Home Menu Functionality Language Selection There are three options for the Home Menu: The user interface is available in three languages: • P1/P2 • English • mA/RTD • Norwegian • MENU • German These options are shown across the bottom of the To select a language: display. -
Page 20: Menus
721Ex Users Manual Menus SWITCHTEST There are 11 sub menus that can be accessed from To access the SWITCHTEST menu, push . (Main Menu). Push to go to the next menu selection. SWITCHTEST is shown on the menu bar. - Page 21 Pressure Calibrator Product Features To do a switch test: Pressure Switch Use the P1 or P2 pressure input connections to connect the Product to the input of the switch. Connect the contact output of the switch to the COM and mA terminals of the Product. The polarity of the terminals does not matter.
- Page 22 721Ex Users Manual Once the switch is open, “OPEN” will be shown. At the top of the display it will now read, “SW OPENED Bleed the pump slowly until the pressure switch AT” and show the pressure at which the switch opened.
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Page 23: Error
Pressure Calibrator Product Features 10. Push the “NEXT” option to view when the switch closed, and the dead band. hix046.eps 11. Push the “NEW TEST” option to clear the data and do another test. hix045.eps 12. Push to end the test and return to the main menu. %ERROR The Product features a unique function which can calculate pressure vs. - Page 24 721Ex Users Manual ZERO External Loop Supply hvf019.eps Figure 4. Percent Error Function Connection...
- Page 25 Pressure Calibrator Product Features Example: Note The 0 % and 100 % point will be saved in non- A pressure transmitter under test is 30 psi (2 Bar) Full- volatile memory until they are changed again by Scale and outputs a corresponding 4 mA to 20 mA signal. the user.
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Page 26: Minmax
721Ex Users Manual MINMAX The Product has a min/max feature to capture the minimum and maximum values of any displayed parameter. To use the MINMAX menu: Push to access the menus. Push to step through the menu until MINMAX is shown on the menu bar. -
Page 27: Set Units
Pressure Calibrator Product Features • inHg 0 °C SET UNITS Use the SET UNITS menu to select the measurement • mmHg 0 °C units for each port. To use this menu: • kg/cm Push to access the menus. • O 4 °C Push ... -
Page 28: Contrast
721Ex Users Manual Push to move through each function (P1, P2, or Lock and Unlock Configurations (CFG) RTD) and change to the desired units. Use the LOCK CFG or UNLOCK CFG options of the Configuration Lock Menu (CONFIG), shown below, to Push ... -
Page 29: Auto Off
Pressure Calibrator Product Features You will also notice that some menu choices disappear Push or to select the number of minutes before when the LOCK CFG is used. the Product turns off or scroll down to 0 to disable Auto Off as shown below. -
Page 30: Resolution
721Ex Users Manual RESOLUTION PROBE TYPE To choose between a low or high resolution display: To select an external RTD probe for use with the Product: Push to access the menus. Push to access the menus. Push to step through the menu until Push ... - Page 31 Note The factory default type is PT100-385 so if the The default probe type is PT100-385. Product is used with the Fluke 720 RTD Probe (pn 4366669), it is not necessary to set the SELECT RTD PROBE TYPE probe type. Connect the probe to the Product and configure the display to read temperature.
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Page 32: Damp
721Ex Users Manual DAMP Turn on or off Damping with the DAMP menu selection. When damping is on, the Product shows a running average from ten measurements. The Product makes approximately three indications per second. RTD Probe To use the Damping function: Push ... -
Page 33: Measure Pressure
Pressure Calibrator Measure Pressure Measure Pressure Note To ensure accuracy of the Product, the Product To measure pressure, connect the Product with the must be zeroed before a device is calibrated. correct fitting and select a pressure port. The Product has See the “Zero Function Use”... -
Page 34: Measurements
721Ex Users Manual Measurements Use the input terminals on the front of the Product to measure current. Current is measured in mA and percentage of range. The range on the Product is set at 0 % at 4 mA and 100 % at 20 mA. -
Page 35: Transmitter Calibration
Pressure Calibrator Transmitter Calibration Transmitter Calibration Pressure-to-Current Transmitter Calibration To calibrate a pressure-to-current transmitter (P/I): mA Input Function Connect the Product and the pump to the transmitter. The mA input function reads back the 4 mA to 20 mA See Figure 7. output from the device being calibrated. - Page 36 721Ex Users Manual External Loop Supply ZERO hvf018.eps Figure 7. Pressure-to-Current Transmitter Connections...
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Page 37: Ranges And Resolution
Pressure Calibrator Transmitter Calibration Ranges and Resolution Ranges and resolutions for the Product are shown in Table 4. Table 4. Ranges and Resolutions Range (PSI) 1000 1500 3000 5000 Burst Pressure 1200 2000 4000 6000 9000 10000 Proof Pressure 1000 2000 3000 6000... -
Page 38: Maintenance
721Ex Users Manual To change the batteries, see Figure 8: Maintenance Turn off the Product. Replace the Batteries Turn the Product so that the display is down. If the batteries discharge too far, the Product automatically shuts down to prevent battery leakage. -
Page 39: Clean The Product
Pressure Calibrator Maintenance Clean the Product Caution To avoid damaged to the Product: • Do not use solvents or abrasive cleansers. • Do not allow water into the case. Clean the Product with a soft cloth dampened with water or water and mild soap. hvf061.eps Figure 8. -
Page 40: User-Replaceable Parts And Accessories
User-replaceable parts are listed in Table 6 and shown Rubber Feet 4364579 Not Shown in Figure 9 . For more information about these items, Fluke-720RTD Probe for 721 contact a Fluke representative. See the “Contact Fluke” 4366669 Not Shown and 719Pro section of this manual. Test Lead Set... - Page 41 Pressure Calibrator User-Replaceable Parts and Accessories hvf065.eps Figure 9. User-Replaceable Parts and Accessories...
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Page 42: Specifications
721Ex Users Manual Specifications (15 °C to 35 °C unless otherwise noted) Environmental Operating Temperature ......-10 °C to +45 °C (14 °F to +113 °F) Storage With Batteries ........Per battery manufacturer’s specification, not to exceed storage specification without batteries. -
Page 43: Physical
Pressure Calibrator Specifications Physical Dimensions (with holster) ......(H x W x D) (20 x 11 x 5.8) cm, (7.9 x 4.3 x 2.3) in Weight (with holster) ........ 0.539 kg (1 lb 3 oz) Ingress Protection ........IEC 60529 - IP40 Connectors/Ports Pressure .......... - Page 44 721Ex Users Manual 1-year Specifications Low Pressure Sensor High Pressure Sensor Calibrator Range Resolution Accuracy Range Resolution Accuracy Model Description Sensor 1 Sensor 1 Sensor 1 Sensor 2 Sensor 2 Sensor 2 -12 psi to +100 psi 0.01 psi 721Ex- 16 PSIG, 100 PSIG -0.83 bar to...
- Page 45 Sensor 1 Sensor 1 Sensor 1 Sensor 2 Sensor 2 Sensor 2 -12 psi to +100 psi 0.01 psi 721Ex- 36 PSIG, 100 PSIG -0.83 bar to 3601 0.0001 bar 6.9 bar -12 psi to +300 psi 0.01 psi 721Ex-...
- Page 46 721Ex Users Manual Electromagnetic Compatibility (EMC) ... IEC 61326-1 (Portable); IEC 61326-2-2, CISPR 11, Group 1, Class A Group 1 equipment: group 1 has intentionally generated and/or use conductively coupled radio- frequency energy which is necessary for the internal functioning of the equipment itself.
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