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Loop Calibrators | Current Loop | Testing Instruments

New items

RSTEK300, Martindale

Process Control Current Calibrator Martindale TEK300 Designed for process control instrumentation and general purpose signal injection applications. Enables the user to test, calibrate and troubleshoot in a variety of environments. Features include Sink, source and monitor modes for up to 20mA Overload protection for additional safety ABS case with clear 3 digit LCD display Battery condition and error indication LEDs Requires 2 x PP3 alkaline batteries Test leads not included

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New items

7006, Time Electronics

Time Electronics Loop-Mate 1 & 2 Current Loop Calibrator 537-2580 537-2603 Features and Benefits Loop-Mate 1: Features and Benefits Loop-Mate 2: FAQ's What is a current loop calibrator? How much current flows in each loop of a parallel circuit?

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New items

1048, Time Electronics

Current Voltage Loop Calibrator 1048 Easy to use current, voltage and loop calibrator Source & measure in 3 current & 3 volt ranges Transmitter/simulator sink function High accuracy 0.02% A large easy to read 4.5 digit LCD which auto-ranges, 0.005% of range resolution Output functions include steps, ramps and inching A ten turn potentiometer controls output adjustment with up/down increment buttons for fine control Output can be reversed (positive/negative) and zeroed at the flick of a switch Manual rest of ramp function is also provided for quick restore

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New items

7007, Time Electronics

Time Electronics Loop-Mate 1 & 2 Current Loop Calibrator 537-2580 537-2603 Features and Benefits Loop-Mate 1: Features and Benefits Loop-Mate 2: FAQ's What is a current loop calibrator? How much current flows in each loop of a parallel circuit?

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New items

7006, Time Electronic

Loop-Mate 1 & 2 Single function low-cost pocket sized units, designed for test and calibration of process loops. Simple to operate - no keypads or complicated selections. Pocket sized 140 x 65 x 30 mm 4 - 20mA or 0 - 10V loops 7 calibration set-points (Loop-Mate 1) Auto-Step output - adjustable rate (Loop-Mate 1) Battery powered PP3 Internal loop drive supply Note Loop-Mate 1 is a simulator Loop-Mate 2 is an indicator Supplied with Carry case, leads and technical manual Loop-Mate1 generates 4 to 20 mA or 0 to 10V to simulate loop signals. Audible beeps that change pitch in sympathy with the output level plus auto-stepping through the range simplify a calibration engineers job. It has several additional features - it can generate the current using its own internal supply (RX Test mode), or control the current using an external supply (TX Sim mode). TxSim and RxTest

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New items

Fluke 707, Fluke

Fluke 705 Loop Calibrator Features and Benefits: FAQ's What is a current loop calibrator? How much current flows in each loop of a parallel circuit?

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New items

Fluke-709, Fluke

Fluke 709 Precision Loop Calibrator The Fluke 709 Precision Loop Calibrator reduces the time it takes to measure or source voltage or current and power up a loop. It is used for installation, calibration and troubleshooting field transmitters, valves and other control system components. Primary functions are source and measure mA signals in the range 0 to 24 mA. The Fluke 709 can measure 0 to 30 V and produce 24Vdc loop power. The 709H includes HART communication functionality and supports a select set of HART universal and common-practice commands. It can be used as a loop calibrator or basic function communicator. Intuitive interface with Quick-Set rotary encoder knob for fast setup and ease-of-use LCD graphic display 128x64 pixels with backlight and contrast adjust (.34 high digits) Best in class accuracy at 0.01% reading Simple two-wire connection for all measurements and protection up to 240Vac User-selectable 250Ω resistor Dedicated span and 25% step buttons 24Vdc loop power with mA Measure Mode (-25% to 125%) Resolution of 1μA on mA ranges and 1mV on voltage ranges Variable step & ramp time in seconds Adjustable span selection (0 to 20 mA or 4 to 20 mA) Small (150x90x30mm), light (300g) and robust design Powered by 6 standard AAA batteries (supplied installed) Auto Shutdown to conserve battery life (adjustable up to 30 minutes) Protective holster (supplied) fits easily into user's hand Supplied with AC72-1 alligator clips (2), TL75 test leads, soft case, 6 AAA batteries (installed), product manual, quick reference guide, safety information

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New items

FLUKE 707, Fluke

707 Loop Calibrator The Fluke 707 loop calibrator is a high performance solution for calibration, repair and maintenance of current loops. The new "Quick Click" knob making it extremely fast and easy to use. Features & Benefits Designed for one handed use Rugged and reliable Intuitive user interface combines the best features of dial and button based calibrators Measure mA and volts accurately to test and calibrate mA control loops Source/simulate mA to test 4-20mA devices such as valve positioners or input cards to PLCs Perform fast linearity tests with 25% and 100% stepping Conduct remote tests with auto-step and auto-ramp features One handed user interface with "Quick Click" detented knob Large display and simple, quick-click interface for easy one-handed operation 0.015% accuracy and 0.001 mA resolution Simultaneous mA and % of span display 0-28 V DC measurement to check Loop Voltage 1 μA resolution for mA source, simulate and measure Push button 25% steps for fast, easy linearity checks 0-100% span check for fast confirmation of zero and span Selectable slow ramp, fast ramp, and step ramp to provide smooth outputs for valve slewing and loop functional tests 24 volt internal loop supply, so you can power and read a transmitter at the same time without carrying a DMM Single 9 V battery that is easily changed without braking calibration seal 0 - 20 mA or 4 - 20 mA default start up modes Innovative output adjustment dial with 1 μA and 100 resolution HART ™ mode connects 250 Ω resistor in series with 24 V loop for compatibility with HART communicators Protective holster included

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New items

FLUKE-707, Fluke

707 Loop Calibrator The Fluke 707 loop calibrator is a high performance solution for calibration, repair and maintenance of current loops. The new "Quick Click" knob making it extremely fast and easy to use. Features & Benefits Designed for one handed use Rugged and reliable Intuitive user interface combines the best features of dial and button based calibrators Measure mA and volts accurately to test and calibrate mA control loops Source/simulate mA to test 4-20mA devices such as valve positioners or input cards to PLCs Perform fast linearity tests with 25% and 100% stepping Conduct remote tests with auto-step and auto-ramp features One handed user interface with "Quick Click" detented knob Large display and simple, quick-click interface for easy one-handed operation 0.015% accuracy and 0.001 mA resolution Simultaneous mA and % of span display 0-28 V DC measurement to check Loop Voltage 1 μA resolution for mA source, simulate and measure Push button 25% steps for fast, easy linearity checks 0-100% span check for fast confirmation of zero and span Selectable slow ramp, fast ramp, and step ramp to provide smooth outputs for valve slewing and loop functional tests 24 volt internal loop supply, so you can power and read a transmitter at the same time without carrying a DMM Single 9 V battery that is easily changed without braking calibration seal 0 - 20 mA or 4 - 20 mA default start up modes Innovative output adjustment dial with 1 μA and 100 resolution HART ™ mode connects 250 Ω resistor in series with 24 V loop for compatibility with HART communicators Protective holster included

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New items

0665091, Fluke

Fluke 705 Loop Calibrator Fluke's integrated solution for calibration, maintenance of milliamp loops and repair, the 705 current loop calibrator is an ideal cost-effective source and measurement tool. Delivering a mA accuracy of 0.02% it also provides quick and easy readings due to the simultaneous % and mA display. For 0 to 20 mA or 4 to 20 mA current loop testing and dc voltage from 0 to 28 V, it is supplied with a set of TL75 test leads (726-3624) and alligator clips. Features and Benefits: 0.02% accuracy 24 V loop supply with mA measure Simultaneous mA and % of span display Selectable step/ramp outputs mA sourcing, simulation and measurement Compact case and protective holster Quick battery replacement FAQ's What is a current loop calibrator? Current loop calibrators are specially designed instruments for current loop trouble shooting, testing and calibration. They can source current on unpowered devices in a loop, simulate the operation of loop powered transmitters and also measure current. These calibrators often feature time saving technology, specialist graphics using digital interfaces and micro-processor based electronics. How much current flows in each loop of a parallel circuit? Determined by Ohm's law, which states that the current between 2 points through a conductor is directly proportionate to the voltage across those 2 points, divided by the resistance of the conductor. I = V/R. This is also the case for series and parallel circuits, however in parallel circuits the total current can be affected by the way the resistors have been connected, as well as their ohmic value. Current does divide up and there can be more current in one area over another nonetheless when all areas are added up the total amount is the same. Supplied with 9V installed alkaline battery, AC70A alligator ...

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New items

Fluke-709H, Fluke

Fluke 709 Precision Loop Calibrator The Fluke 709 Precision Loop Calibrator reduces the time it takes to measure or source voltage or current and power up a loop. It is used for installation, calibration and troubleshooting field transmitters, valves and other control system components. Primary functions are source and measure mA signals in the range 0 to 24 mA. The Fluke 709 can measure 0 to 30 V and produce 24Vdc loop power. The 709H includes HART communication functionality and supports a select set of HART universal and common-practice commands. It can be used as a loop calibrator or basic function communicator. Intuitive interface with Quick-Set rotary encoder knob for fast setup and ease-of-use LCD graphic display 128x64 pixels with backlight and contrast adjust (.34 high digits) Best in class accuracy at 0.01% reading Simple two-wire connection for all measurements and protection up to 240Vac User-selectable 250Ω resistor Dedicated span and 25% step buttons 24Vdc loop power with mA Measure Mode (-25% to 125%) Resolution of 1μA on mA ranges and 1mV on voltage ranges Variable step & ramp time in seconds Adjustable span selection (0 to 20 mA or 4 to 20 mA) Small (150x90x30mm), light (300g) and robust design Powered by 6 standard AAA batteries (supplied installed) Auto Shutdown to conserve battery life (adjustable up to 30 minutes) Protective holster (supplied) fits easily into user's hand Supplied with AC72-1 alligator clips (2), TL75 test leads, soft case, 6 AAA batteries (installed), product manual, quick reference guide, safety information

Product Detail

New items

1048, Time Electronic

Current Voltage Loop Calibrator 1048 Easy to use current, voltage and loop calibrator Source & measure in 3 current & 3 volt ranges Transmitter/simulator sink function High accuracy 0.02% A large easy to read 4.5 digit LCD which auto-ranges, 0.005% of range resolution Output functions include steps, ramps and inching A ten turn potentiometer controls output adjustment with up/down increment buttons for fine control Output can be reversed (positive/negative) and zeroed at the flick of a switch Manual rest of ramp function is also provided for quick restore DC Current - Source and Measure DC Volts - Source and Measure Output Ramp Range 0-22mA Range 0-22V Current ramp 4 to 20, or 0 to 20 on all ranges Accuracy 0.02% Accuracy 0.02% Voltage ramp 0 to 10, or 0 to 20 on all ranges Resolution 1uA (0-19.999mA), 10uA (20-22mA) Resolution 1mV (0-1.999V), 10mV (20-22V) Power 1 x 9V PP3 battery Range 0 to 2.2mA Range 0-2.2V Operating temperature -10 to +50°C Accuracy 0.02% Accuracy 0.02% Dimensions 140 x 80 x 50mm Resolution 0.1uA (0-1.9999mA), 1uA (2-2.2mA) Resolution 100uV (0 - 1.9999V), 1mV (2-2.2V) Range 0-220uA Range 0 - 220mV Accuracy 0.05% of range Accuracy 0.05% Resolution 10nA (0-199.99uA), 0.1uA (200-220uA) Resolution 10uV (0-199.99mV), 100uV (200-220mV) Max source load 1100Ω @ 20mA. Max drive, 22V Output resistance (V source) Less than 2Ω, max current 50mA Measure load 22, 2.2, 0.22 mA ranges; 16, 110, 1KΩ Measure load 1MΩ on all ranges Supplied with letherette carry case

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