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Front Panel Program
Wait: [WAIT]
Sets a pause between readings.
The program takes measurements as fast as the instrument will permit
unless you specify a wait time greater than zero.
Press [MAIT] and enter the desired interval between
measurements in seconds.
Thermocouples: [TC-E] - [TC-T]
These functions measure thermocouples of type E, J, K, R, S, and T. The program measures DC Volts using
five digits of resolution, takes a reference temperature from the multiplexer assembly reference junction,
and returns the temperature in the specified units.
Reference Temperature: [REF]
This function returns the reference temperature from the reference junction on a multiplexer assembly.
If no channels are closed, the reading is taken from the lowest numbered slot containing a multiplexer
assembly. Otherwise the reading is taken for the lowest numbered closed channel. Press [REF] and enter
the desired temperature units.
Reset: [RESET]
This function resets the HP 3421A to the power-on state and returns the program to DC Volts.
Fix Display Format: [FIX]
This function sets the number of digits to be displayed after the decimal point.
You can select any
number of digits in the range 0 through 11. Numbers too large or too small to be viewed in the current
fixed format are displayed in scientific format. In FIZ display format, the result of 1.2 is displayed
ask. 3. To set the number of display digits, press [ FIX] and enter the desired number of digits.
Standard Display Format: [STD]
This function sets the standard display format, in which numbers are displayed with the smallest number
of digits consistent with presenting maximum accuracy. The result of 1" is displayed as . =r, while 1.
I
is displayed as . 22= 222255225, Press [STD] to select = TI) display format.
End The Program: [QUIT]
Press [QUIT] to end the program. The HP 3421A will remain in its current state.
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