Fluke 707, 24mA Loop Calibrator

Extremely fast and easy to use, Fluke offers a push-button and knob-base current loop calibrator. Designed for high performance one handed operation, calibration, maintenance and repairs of current loops, assisting users in working more accurately and efficiently.

A clear large simultaneous mA and % of span display, alongside the simple rotary button allows adjustments and quick selections with one hand. Fluke's calibrator includes 24 volt loop supply, allowing you to power and read a transmitter at the same time.

• Slow ramp, fast ramp and step ramp options
• Measures V DC to 28 V
• 0-100% span check (fast confirmation of zero and span
• Push button with 25% steps for linearity checks
• 0-20 mA or 4-20 mA default start up modes
• Protective yellow holster featuring test lead storage
• 24 V loop supply with mA measure
• -10°C to 55 °C operating temperature

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.

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.

Not sure if your equipment is sending out the right signals? Use this calibrator from FLUKE to check the current levels in your loop circuits. Capable of measuring currents between 0 and 24mA, it's widely compatible with instrumentation that uses sensors and transmitters. Set the unit in source mode to measure passive circuits, or use the simulate function to replicate a two-wire transmitter in an external current loop. As it's HART-enabled for loops using hybrid digital and analogue communications, you can carry out different servicing and repair tasks with ease.

• Simultaneous mA and % readouts spare you from working out calculations in your head
• Best accuracy of ±0.015% means you can be confident in your test results
• User-friendly display for easy reading
• Quick-click interface helps you keep one hand free
• 18-hour battery life means you can trust it to keep working on long shifts

• Laboratories
• Plant engineering
• Factory automation
• Industrial networks

No, changing the battery won't break the calibration seal. Simply turn off your calibrator first and remove the leads before opening the battery compartment. Be sure to use a 9V battery and click the door back on.