Fluke 724 Temperature calibrator: Electrical Parameter Measurements

Measurements of Electrical Parameters

Fluke 724 Temperature Calibrator works in two modes, one is Measure mode & other is Source mode to test and calibrate almost any temperature instrument. In this article, we are going to explain you measurement of Electrical parameters and Temperature in both modes.If you want to gather brief description of this calibrator you may follow this Fluke 724 Temperature calibrator.

Fluke 724 Temperature Calibrator

Measurements in Different Modes:

(A) Measure mode:

How to measure Voltage and current with Fluke 724 Temperature calibrator in measure mode?

Steps for measuring electrical parameters i.e. Voltage or current with Fluke 724 Temperature calibrator are:

(i) Measuring Electrical parameters (Voltage and current) (Upper display)

To measure the current and voltage output of a transmitter, use the upper display and proceed as follows:

Measure Parameters without loop power 

  1. Select current by pressing mA button. 
  2. Ensures that loop button should not be “ON”. 
  3. Inside the V/mA/loop jack, insert Red lead. 
  4. Inside the COM jack, insert black lead. 
  5. First connect black lead to the circuit and after that Red lead. 
  6. Note the measurement display on the screen. When you have noted the readings, first remove the red lead from the circuit and then remove the black lead to avoid any electrical shock or damage to the device. 

                                                       Fluke 724 temperature calibrator measuring Voltage & current in upper display
Measuring Parameters with loop power


To test a transmitter when it is disconnected from plant wiring, a loop power function is used which activates a 24V supply in series with the current measuring circuit. For measuring parameters with loop power, procedure are:
  1. Inside the V/mA/loop jack, insert Red lead. 
  2. Inside the COM jack, insert black lead. 
  3. First connect black lead to the circuit and after that Red lead. 
  4. Connect the calibrator to the transmitter current loop terminal. 
  5. When the calibrator is in the current measurement mode then press LOOP labelled button. 
  6. LOOP start appearing which turns on the internal 24V loop supply. 
  7. Note the measurement display on the screen. When you have noted the readings, first remove the red lead from the circuit and then remove the black lead to avoid any electrical shock or damage to the device. 
Fluke 724 calibrator measures parameters with loop

(ii) Measuring  Electrical Parameters (voltage and current) (Lower display)

To measure current and voltage output of a transmitter, use the Lower display and proceed as follows:
  1. Inside the V/Ω/RTD jack, insert Red lead. 
  2. Inside the COM jack, insert black lead. 
  3. First connect black lead to the circuit and after that Red lead. 
  4. If necessary, press Meas/Source labelled button for measure mode (lower display). 
  5. For dc voltage or current press V labelled button and for resistance press Ω labelled button. 
  6. Note the measurement display on the screen. When you have noted the readings, first remove the red lead from the circuit and then remove the black lead to avoid any electrical shock or damage to the device. 

                                             Fluke 724 Temperature calibrator measures electrical parameters in lower display

How to measure Temperature with Fluke 724 temperature calibrator in measure mode?


Steps for measuring Temperature with Fluke 724 Temperature calibrator are:

(i) Measuring Temperature using Thermocouples:

Calibrator supports ten standard thermocouples including types E, N, J, K, T, B, R, S, L, or U. For the measurement following procedure follows:

  1. Attach the thermocouple leads to the TC mini plug and insert mini plug into the TC input /output terminal of the calibrator. 
  2. If necessary, press Meas/Source labelled button for measure mode. 
  3. For TC display, press TC labelled button. 
  4. For the selection of thermocouple type, press this TC labelled button continuously. 
  5. For measuring temperature in Celsius or Fahrenheit, press °C or °F labelled button. 
Fluke 724 temperature calibrator measures temperature with thermocouple

(ii) Measuring Temperature using RTD’s:

Calibrator accepts the RTD measurements inputs in 2-, 3-, 4- wire connections and prefers 3- wire connection the most. For measurement procedure is as follows:
  1. If necessary, press Meas/Source labelled button for measure mode. 
  2. For RTD display, press RTD labelled button. 
  3. For the selection of RTD type, press this RTD labelled button continuously. 
  4. Pressbutton to select 2-, 3-, 4- wire connections. 
  5. Attach RTD to the Input terminals as shown in set-up below. 
  6. For measuring temperature in Celsius or Fahrenheit, press °C or °F labelled button. 
Fluke 724 temperature calibrator measures Temperature using RTD

(B) Source Mode:

In this mode, calibrator generates calibrated signals for testing and calibrating process instruments.

How to measure Voltage and current with Fluke 724 Temperature calibrator?

Steps for measuring Voltage or current with Fluke 724 Temperature calibrator in source mode are:

  1. Inside the V/Ω/RTD jack, insert Red lead. 
  2. Inside the COM jack, insert black lead. 
  3. First connect the black lead to the circuit and after that the Red lead. 
  4. If necessary, press Meas/Source labelled button for measure mode. 
  5. For dc voltage or current press V labelled button and for resistance press Ω labelled button. 
  6. Enter the desired value by selectinbutton. 
  7. To select the different digit to change pressbutton. 
  8. Note the measurement display on the screen. When you have noted the readings, first remove the red lead from the circuit and then remove the black lead to avoid any electrical shock or damage to the device. 

Fluke 724 temperature calibrator measures electrical parameter in source mode

How to measure Temperature with Fluke 724 temperature calibrator in source mode?

Steps for measuring Temperature with Fluke 724 Temperature calibrator in source mode are:

(i) Measuring Temperature using Simulating Thermocouples:

Calibrator supports ten standard thermocouples including types E, N, J, K, T, B, R, S, L, or U. For the measurement procedure is as follows:

  1. Attach the thermocouple leads to the TC mini plug and insert the mini plug into the TC input /output terminal of the calibrator. 
  2. If necessary, press Meas/Source labelled button for measure mode. 
  3. For TC display, press TC labelled button. 
  4. For the selection of thermocouple type, press this TC labelled button continuously. 
  5. Enter the temperature you want by pressingthese buttons. 
  6. To select the different digit to edit presseither of these buttons. 
  7. For measuring temperature in Celsius or Fahrenheit, press °C or °F labelled button. 
Fluke 724 calibrator measures temperature using simulating thermocouple in source mode

(ii) Measuring Temperature using simulating RTD’s:

Calibrator accepts the RTD measurements inputs in 2-, 3-, 4- wire connections and prefers 3- wire connection the most. For measurement procedure is as follows:

  1. If necessary, press Meas/Source labelled button for measure mode. 
  2. For RTD display press RTD labelled button. 
  3. For the selection of RTD type, press this RTD labelled button continuously. 
  4. Enter the temperature you want by pressing these buttons. 
  5. Select different digit, to edit pressbutton. 
  6. Attach RTD to the Input terminals as shown in set-up below. 
  7. When the excitation current from your device exceeds the limit of the 724 calibrator then it will display ExI HI. 
Fluke 724 temperature calibrator measures temperature with RTD in source mode

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