Martel Electronics MC1010 - Manual (Page 14)

The calibrator can also measure the mV of a Thermocouple, which can be used along with a
table in case the corresponding TC type is not supported by the calibrator. To do so, proceed
as above and choose mV from sensor types.
Figure 8. Measuring Temperature Using Thermocouple Terminals
3.4-2 Using Resistance-Temperature-Detectors (RTDs)
The supported types of RTDs are shown in Section 8. Specifications. RTDs are
characterized by their 0°C resistance, R0. The calibrator accepts two, three, and four wire
inputs, with four wire input being the most accurate.
To use the RTD option, apply the following steps:
1. Select the [CONFIG] option from the main menu.
2. Select RTD from the primary parameters. Select [IN] from input/output control.
3. Choose 2, 3, or 4-wire connection [2W, 3W, 4W]. (4-wire allows for the most precise
measurement)
4. Select RTD type from the sensor types.
5. Attach RTD leads as shown in Figure 9.
Figure 9. Measuring Temperature with RTD Connection
Resistance can also be measured using this function. To do so, use the above procedure
and choose OHMS from the sensor types. This option can be used along with a table to
measure an RTD which is not programmed into the calibrator.
14
MEASURE / SOURCE
3W
mA+
TC
+
V
Hz
–
Ω
4W
mA–
–
+
–
+
–
+
–
+
3W
4W
RTD
RTD
RTD
2W
RTD IN 4W P100-385
100.00
Ω
MENU
0.0 °C
LIGHT
MEASURE / SOURCE
3W
mA+
TC
+
V
Hz
–
Ω
4W
mA–
+
–
TC PLUG
Note: The TC wire
used must match the
thermocouple type
being calibrated.