Keithley DMM7510 Reference Manual page 148

7 1/2 digit graphical sampling multimeter

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Model DMM7510 7½ Digit Graphical Sampling Multimeter Reference Manual

Measure temperature using the front panel

To make a temperature measurement using the front panel:

1. Make the connections as shown in the previous figures.

2. Press the FUNCTION key.

3. Select Temperature.

4. Press the TRIGGER key for 2 seconds and verify that the instrument is set to Continuous

Measurement.

The measurements start displaying on the front panel.

Temperature transducer types

You can use thermocouples, thermistors, 3-wire RTDs, and 4-wire RTDs with the Model DMM7510.

For thermocouples, temperature measurement range depends on which type of thermocouple is

being used. Thermocouple B, E, J, K, N, R, S, and T are supported.

The thermistor types 2252, 5000, and 10,000 are supported. Note that curve-fitting constants are

used in the equation to calculate thermistor temperature. The thermistor manufacturer's specified

curve fitting may not be the same as the ones used by the Model DMM7510.

The Model DMM7510 supports 3-wire and 4-wire RTD types of:

You can also select the user type. When the user type is selected, you can define the alpha, beta,

delta, and zero values of the RTD.

For 3-wire RTD measurements, the HI, LO, and SENSE LO input terminals are used to measure

temperature. The SENSE LO remote senses lead resistance and properly compensates the

resistance measurement before converting to temperature. The accuracy for 3-wire RTD is with less

than a 0.1 Ω lead resistance mismatch for INPUT HI and INPUT LO. Add 0.25 °C per 0.1 Ω of HI-LO

lead resistance mismatch.

For 4-wire RTD measurements, by default, the Model DMM7510 measures temperature with offset-

compensated ohms and open lead detection enabled. This provides the most accurate and reliable

method to measure the low resistance of the RTD. For faster RTD measurements when the most

accurate measurements are not required, you can disable offset compensation and open lead

detection for 3-wire and 4-wire RTD measurements.

Settings available for temperature measurements

Temperature measure settings

making temperature measurements.

DMM7510-901-01 Rev. B / May 2015

(on page 2-31) for settings that are available when you are

Section 2: General operation