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Menu Functions
Probe Menu
6.2.1.11
Thermocouple Polynomial Conversion
Note: An Application Note for use of Tungsten-Rhenium and other thermocou-
ples is available at www.hartscientific.com.
The thermocouple polynomial conversion allows calculation of temperature by poly-
nomial conversion.
When the Thermocouple Polynomial conversion type is selected, the coefficients are
displayed on the right portion of the bottom of the display. Use the UD buttons to
scroll through the coefficients. Use the Enter button to edit and save the new setting.
Press and hold the Exit button to cancel to the main display or press the EXIT button
to cancel and to move to the next parameter. On the last parameter, press the Exit but-
ton to exit to the menu.
The following equation is used for the thermocouple polynomial conversion:
6
(
)
[
][ ]
∑
i
t E
mV °C
=
C E
i
i
−
0
The user-defined parameters for the thermocouple polynomial conversion are the
coefficients c
(C0) through c
(C6). The user can specify internal or external refer-
0
6
ence junction compensation (RJC; see Table on page ). If external RJC is selected, the
user enters the temperature of the RJC reference in the reference junction temperature
(RJT) parameter.
The output of the thermocouple, in millivolts, at 25 °C with the reference junction at
0 °C, is mV (25 °C). For example, for a type K thermocouple, mV(25 °C) is 1.0002.
6.2.2
Copy Probe
The COPY PROBE function (Figure 15 on next page) allows you to copy a set of
probe parameters from one channel or memory location to another. The parameters
are copied from the user selected source channel or memory location into the current
channel. The COPY PROBE function can be password protected to restrict access. See
Section , Password, for more information. If this function is password protected, the
user is prompted to enter the password to gain access. If an incorrect password is en-
tered, the display shows the message PASSWORD INCORRECT and access is denied.
If the correct password is entered or if this function is not password protected, the
bottom portion of the display appears showing the source channel or memory location,
the probe serial number, and the conversion type. The destination channel or memory
location is displayed after the source channel type is selected.
37
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