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Cl
Fos
FF
LF Co
File Structures
This variable contains the channel number in the HP 3421 A to be measured.
This variable stores the number of the function being measured.
The function
numbers are:
9:
10:
11:
12:
13:
14:
15:
16:
17:
18:
19:
20:
21:
:
DC Volts
:
AC Volts
4-20mA Current
1
2
3
4: Two Wire Ohms
5:
6:
>
8
Four Wire Ohms
Frequency
: T Thermocouple
E Thermocouple
J Thermocouple
K Thermocouple
R Thermocouple
S Thermocouple
2K Thermistor (2WQ)
SK Thermistor (2WQ)
RTD (2WQ)
2K Thermistor (4WQ)
SK Thermistor (4WQ)
RTD (4WQ2)
Digital Bit
Digital Byte
Custom Program
This variable stores control information which specifies how each measurement is to be
conducted.
Each character contains meaning for a different parameter.
The
character positions are listed in order:
{reserved>
: Conversion (Y or N)
Number of limit tests
Limit type 1 (L, H, S
Limit type 2 (L, H, S
Limit type 3 (L, H, S
Limit type 4 (L, H, S
Limit type 5 (L, H, S
Limit action 1 (1 to
Limit action 2 (1 to
Limit action 3 (1 to
Limit action 4 (1 to
Limit action 5 (1 to
Number of digits (3,
: Temperature units (C
, C)
, C)
, C)
, C)
6)
6)
6)
6)
6)
4, or 5)
F K or R)
Limit types are L. (low), H (high), I (clear), or = (set). There are 6 available limit
actions.
They are: 1) Beep, 2) Highlight, 3) Print message, 4) Open actuator, §) Close
actuator, or 6) Call a limit program.
This variable stores the label for the trace, up to 20 characters.
I-3
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