User`s guide

Chapter 2 Front Panel Operations RIGOL
M300 User’s Guide
2-29
Temperature Measurement Parameters
The parameters to be set in temperature measurement are as shown in Table 2-1.
Wherein, for the integration time, offset compensation and channel delay, refer to
the introduction in the preceding section. This section introduces the configuration
methods of the other parameters.
1 Select the temperature sensor type
Enter the first step of the channel configuration guide, select the desired
channel number and function (TEMP), use the up/down direction keys to select
Type and use the left/right direction keys to select the desired sensor type.
 TC: thermocouple
 THER: thermistor
 RTD: thermal resistance, 2-wire connection mode
 RTD 4W: thermal resistance, 4-wire connection mode, not applicable to
single-ended multiplexer
2 To select the unit
Use the up/down direction keys to select Unit and the left/right direction keys to
select the desired unit. The M300 can report temperature measurements in ℃
(Celsius), ℉ (Fahrenheit) and K (Kelvins). The temperature conversion relations
are as shown below.
(9 / 5) 32
oo
FC= ×+
273.15
o
KC≈+
Different channels on the same module can use different temperature units.
3 Use Thermocouple to Measure Temperature
The thermocouple is one of the most commonly used devices for measuring
temperature in industry. It converts temperature variation information into
voltage variation information. It provides larger temperature measurement
range.
 Model
After setting the temperature sensor type to TC, use the up/down direction
keys to select Model and use the left/right direction keys to select the
desired model.
The M300 supports the following thermocouple types: B (Pt Rh 30- Pt Rh6),
E (NI CR-WRCK), J (Fe-WRCK), K (NI CR-NiSi), N (NiCrNi-NiSi), R (Pt Rh13
-Pt), S (Pt Rh10-Pt) and T (Cu-WRCK). Among them, B, R and S are
precious metal thermocouples. E, J, K, N and T are low cost metal
thermocouples. For the reference table about each thermocouple, please
refer to the ITS-90 (International Temperature Scale of 1990) standards.