Fluke 712B RTD Temperature calibrator: Introduction and Measurements

Fluke 712B RTD calibrator is an ideal test tool for the temperature calibration professional technicians that wants highly accurate, single function and easy to use RTD temperature calibrator.It is a single function tool used for maintaining the accuracy of the process temperature transmitters and chart recorders or testing input cards on process control system.It can also perform a narrow set of tests quickly with high accuracy.
Fluke 721b RTD temperature calibrator
Let’s have some look over Fluke 712B RTD temperature calibrator features, accessories and measurements.

Key features of Fluke 712B RTD temperature calibrator

Fluke 712B RTD calibrator is a battery operated and handheld instrument used to measure and sources a variety of RTDs.For temperature calibration, it is a first choice of every professional because of its features.Some of its key features are:
  1. Measures and simulate: 13 different RTD types and resistance.
  2. Rugged, compact design: backed by a three-year warranty.
  3. Dual input and backlit: For easy interpretation of results.
  4. Measures 4 to 29 mA signals.
  5. For quick 25% linearity check, it configures 0% and 100% source settings.
  6. Power down settings remembered at power up for the easy restart of tests.
  7. Traceable certification of calibration.
  8. It has the hanging tool built into the case and included with every unit.
  9. 1-year and 2-year specifications bring flexibility to your calibration schedule.
  10. High precision instrument with single function functionality.
  11. Handles pulsed RTD transmitters with pulses >100 ms.
  12. Selectable °F or °C.

Input and output terminals of Fluke 712B RTD Temperature calibrator

Input & output terminals of Fluke 721b calibrator
Sr no.
Name
Description
①, ②
Measure, mA terminals Input terminals for measuring current.
③, ④
Source/ Measure, RTD, Ω

terminals

Terminals for sourcing or measuring 2W resistance and RTDs.
⑤, ⑥
Measure 3W, 4W Terminals for performing 3W and 4W RTD measurements

Auto power off and Auto backlight off Functions of Fluke 712B RTD calibrator

These both functions are used to save power.When we enable and disable these functions they will turn off the product automatically after a specified time.
(i) Auto power off: When we enable auto-power off it automatically power off the calibrator after 15 minutes of inactivity.Its procedure are:

To enable auto power-off mode follow these steps:

  1. Press
  2. Presswhen SHIFT shows on the display.
  3. In the displayed setting list, highlight the Auto power off option, and then useto select this option.

To disable the the auto power-off mode follow these steps:

  1. Press .
  2. Press  when SHIFT shows on the display.
  3. In the displayed setting list, highlight the Auto poweroff option, and then use  to deselect this option.
(ii) Auto backlight off: When we enable auto backlight off mode it automatically power off the calibrator after 2 minutes of inactivity.Its procedure are:
To enable the auto backlight off mode follow these steps:
  1. Press .
  2. Press  when Shift shows on the display.
  3. In the displayed setting list, highlight the Auto backlight off option, and then use to select this option.
To disable the auto-backlight off mode follow these steps:
  1. Press.
  2. Press  when Shift shows on the display.
  3. In the displayed setting list, highlight the Auto backlight off option, and then use to deselect this option.

Measurements with Fluke 721B RTD calibrator

Fluke 712B RTD calibrator is used to measure temperature using RTDs in two modes i.e one is source mode and another is measure mode. At 0 °C, RTDs are characterized by their resistance and is also known as ice point or R0. This calibrator accepts RTD measurement inputs in 2-, 3-, or 4-wire connections, but mostly used the 3-wire connection. A 4-wire configuration provides the highest measurement precision while 2-wire provides the lowest measurement precision.


(i) Measure mode:

Steps for measuring temperature using an RTD input are as follows:
  1. For Measure mode, press this button if necessary.
  2. After selecting measure mode press  this button.
  3. To select the desired type use button and for confirmation press  this button
  4. To select a 2-, 3-, or 4- wire connection press this button.
  5. Attach the RTD to input terminals as shown in Figure.

(ii) Source mode:

In this mode, you can easily source temperature signals via sensor and simulate RTDs. Its procedure follows are:Steps for source temperature signals via sensor are as follows:

  1. Pressthis button to switch to Source mode on temperature channel.
  2. Pressthis button for RTD display.
  3. Usethese arrow keys to define the simulated temperature value.
  4. Again Pressthis button for RTD display.

Steps for simulate RTDs using fluke 712B calibrator are:

  1. For Measure mode press  thus button if necessary.
  2. Press this button for RTD display.
  3. Pressto select the temperature you want.
  4. Pressto select a different digit to edit.
  5. If the Product display shows, the excitation current from your device under test exceeds the limits of the Product.

Accessories of Fluke 721B RTD calibrator

While ordering this calibrator, you got following additional components with it are shown below. If the Product is damaged or something is missing, you can contact the place of purchase immediately.

  1. AC175 alligator clips (2 sets)
  2. TL75 test leads (2 sets)
  3. 754-8016 alligator clips (1 set)
  4. Stackable test leads (1 set)
  5. 4 AA alkaline batteries
  6. Magnet Strap TPAK
  7. 712B/714B Safety Sheet
  8. 712B Quick Reference Guide
  9. 712B Users Manual ( also available on Fluke’s website)

Accessories of Fluke 712B calibrator

Hope this article will help you. We always appreciate your suggestions.

Leave a Reply

Your email address will not be published. Required fields are marked *