FLUKE 773 Milliamp Process Clamp Meter
- Measure 4 to 20 mA signals without breaking the loop
- Source/simulate 4 to 20 mA signals and provide loop power
- Source/measure DC voltage to verify power supplies or I/O signals
- Best in class accuracy of 0.2%
- Delivers 0.01 mA resolution and sensitivity
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Milliamp mA Loop CalibratorsFLUKE 771 Milliamp Process Clamp Meter
Save time by measuring 4-20 mA signals without breaking the loop
The Fluke 771 delivers all the basic functionality you would expect in a milliamp clamp meter. It measures 4-20 mA signals without “breaking the loop,” allowing you to measure low level DC current without having to take systems offline for troubleshooting, saving downtime and money. You can also use it to measure output signals from transmitters without breaking the loop when maintaining and troubleshooting process and automation equipment. This saves time and avoids disrupting critical processes so you can avoid expensive downtime. You can also measure 10 to 50 mA signals in older control systems using the 99.9 mA range.
Added convenience
Designed to make troubleshooting easier, the Fluke 771 includes a detachable clamp that can be attached to the wire you’re testing while you move the meter—connected by the extension cable—to a better viewing position. This is especially helpful for taking readings in tight locations. With the dual backlit display showing both the mA measurement and the percent of a 4 to 20 mA span you can quickly understand what your system is doing, and a built-in LED spotlight lets you illuminate hard to see wire in dark enclosures. You can also capture and display changing measurements using the Hold function making it easier to verify and record measurements.
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Milliamp mA Loop CalibratorsFLUKE 705 Loop Calibrator
Fluke 705 loop calibrator provides a cost-effective, integrated solution for calibrating milliamp loops
The Fluke 705 is a cost-effective, integrated solution for calibration, repair and maintenance of milliamp loops. It features a large display and simple, pushbutton interface for ease of use. Plus, it offers the other capabilities you need most to calibrate mA loops including:
- mA sourcing, simulation and measurement
- 0.02% accuracy and 0.001 mA resolution
- Simultaneous mA and % of span display
- Selectable step or ramp outputs
- 24 V Loop supply with mA measure
- 0-28 VDC measurement to check Loop Voltage
- Easy battery exchange without opening the case
- Includes “span check” for fast confirmation of zero and span.
- Provides selectable slow ramp, fast ramp, and step to provide smooth outputs for valve slewing and loop functional tests.
- Includes a 24 volt internal loop supply, so you can power and read a transmitter at the same time without a DMM.
- Runs on a single 9 V battery that is easily changed without breaking the calibration seal
- Offers 0 – 20 mA or 4 – 20 mA default start up modes
- Comes with a protective yellow holster with test lead storage and a three year warranty
And you get all of that in a compact case with a separate protective holster and a three year warranty.
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Milliamp mA Loop CalibratorsFLUKE 710 mA Loop Valve Tester
Smart Control Valve Testing is now easier than ever
The Fluke 710 Valve Testing Loop Calibrator is designed to enable users to perform quick, easy tests on HART smart control valves. Featuring built-in test procedures and an intuitive user interface, the 710 allows users to quickly and easily perform valve tests, while the valve test quick-check results provide at-a-glance diagnostics help you make maintenance decisions faster than ever. The valve health quick-check results let you know whether your valve is in good, marginal or in bad operating condition so you can quickly decide whether additional maintenance is necessary.
Valve testing and HART communication in a precision loop calibrator
With the 710 Valve Testing Loop Calibrator’s built in HART communication function, users can source a 4-20 mA signal to cause the smart control valve to move, while simultaneously interpreting the valve’s HART feedback signal to determine whether the valve is moving to the expected position. In addition to positional information, the measured pressure delivered from the valve’s internal I/P (which moves the valve) can be determined through the HART communication protocol.
The 710 has built-in test procedures that automatically increase and change the mA signal while monitoring the HART position and pressure feedback from the control valve, giving you a better overall picture of valve health at the simple push of a button.
Pre-configured valve tests, at-a-glance answers
Valve test routines built into the 710 include:
- Manual testing; manually change the mA signal and view the HART position and pressure variable information
- Full range ramping of the mA signal from 4 to 20 to 4 mA while recording the 0-100-0% position, or the pressures applied that move the valve from 0-100-0%
- Stepping the mA signal on the input to the valve in steps and evaluating the valves response to the mA input changes
- Speed tests to determine how fast the valve can open or close
- Bump and partial stroke tests that help test valves over a portion of their range so they can be tested in a live process
ValveTrack™ Software enables further analysis and trending
Valve tests that are logged and recorded to memory in the 710 are available to upload to included ValveTrack™ analysis software.
ValveTrack™ software enables you to:
- Upload, print and plot logged valve tests taken in the field
- Compare previous uploaded tests to recent tests
- View valve test history by HART Tag ID
- Export valve test data to CSV for additional analysis in Microsoft Excel®
Saving time, getting answers
In addition, the 710 offers:
- Logging of HART data in the field. Once recorded by the 710 in the field, the ValveTrack™ software can upload the HART configuration of up to (20) HART devices in your plant and output data in either (.csv) or (.txt) format.
- Data logged mA loop measurements and HART data can be recorded from a particular transmitter for troubleshooting and loop tuning. The data log feature offers selectable capture with recording intervals of 1 to 60 seconds and a logging capacity of 4910 records or 99 individual sessions. Each record contains the mA measurement and all four process variables.
Product Highlights
- Valve test procedures that deliver Good, Marginal or Bad assessment of a control valve
- Generic HART communication
- Best-in-class mA accuracy at 0.01 % measurement or source value
- Compact rugged design
- Intuitive user interface with Quick-Set knob for fast setup, easy to use
- 24 V DC loop power with mA measure mode (-25 % to 125 %)
- Resolution of 1 μA on mA ranges and 1 mV on voltages ranges
- Built in selectable 250 Ω resistor for HART communications
- Simple two wire connection for all measurements
- Auto shutdown to conserve battery life
- Variable step and ramp time in seconds
HART communication
The Fluke 710 offers a built-in HART modem to communicate the following HART commands:
- Read sensor PV information
- Read PV output information
- Read and write PV unit type, tag ID name, descriptor, and message
- Read and write PV ranges (upper and lower)
- Enter/exit fixed current mode
- Set zero offset
- Trim DAC zero (mA output 4 mA)
- Trim DAC gain (mA output 20 mA)
HART Commands for Valves
The 710 includes these unique HART commands to support control valves:
- Autotrim of valve controller
In addition, the Fluke 710 offers:
- Logging of HART data in the field. Once recorded by the 710 in the field, the ValveTrack™ software can upload the HART configuration of up to 20 HART devices in your plant and output data in either .csv or .txt format
- Data-logged mA loop measurements and HART data can be recorded from a particular transmitter for troubleshooting and loop tuning. The data log feature offers selectable capture with recording intervals of 1 to 6 seconds and a logging capacity of 4910 records or 99 individual sessions. Each record contains the mA measurement and all four process variables.
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Milliamp mA Loop CalibratorsFLUKE 715 Volt/mA Loop Calibrator
Compact, lightweight, full-featured mA loop calibrator
The Fluke 715 Volt mA Calibrator delivers outstanding performance, durability, and reliability in a compact, lightweight tool. Offered in the rugged Fluke 80 Series digital multimeter package, the calibrator measures loop current as well as voltage output. It sources voltage to 200 mV or 20 V, measures loop current (0-20 mA, 4-20 mA) signals with 0 .01 % accuracy, and 1 µA resolution, and measures voltage output process signals from PLCs and transmitters. It can source or simulate 4-20 mA loop current and provides a 24 V loop supply with simultaneous current measurement.
- Provides step and linear ramp output function
- Features configurable zero and span settings
- Provides 24 V loop supply with simultaneous current measurement
- Features enhanced voltage and current measure and source accuracy
- Includes a 250-ohm HART resistor with loop power
Easy to use and carry
The 715 is also extremely easy to use with a simple push button interface. It features the rugged construction that Fluke tools are known for and is EMI tolerant as well as dust and splash resistant. It also features a removable battery door for quick battery changes after the 18 hours of battery life the 9 V battery provides. And the tool also comes with a protective yellow holster with test lead storage. For added convenience the Fluke 715 is also compatible with the ToolPak magnetic meter hanging system.
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