2100-900-01 Rev. D / September 2011 Return to Section Topics 4-11
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Section 4: Front Panel Operations
CONFigure:< function> <range>, <resolution>
MEASure:< function>? <range>, <resolution>
SENSe:< function>:RESolution <resolution>
To set the integration time through a remote interface, use the following commands:
SENSe:VOLTage:DC:NPLCycles {0.02|0.1|1|10|MINimum|MAXimum}
SENSe:VOLTage:DC:NPLCycles? [MINimum|MAXimum]
SENSe:CURRent:DC:NPLCycles {0.02|0.1|1|10|MINimum|MAXimum}
SENSe:CURRent:DC:NPLCycles? [MINimum|MAXimum]
SENSe:RESistance:NPLCycles {0.02|0.1|1|10|MINimum|MAXimum}
SENSe:RESistance:NPLCycles? [MINimum|MAXimum]
SENSe:FRESistance:DC:NPLCycles {0.02|0.1|1|10|MINimum|MAXimum}
SENSe:FRESistance:DC:NPLCycles? [MINimum|MAXimum]
To set the aperture time (or gate time) from a remote interface:
For frequency and period measurements, aperture time (or gate time) is analogous to integration
time; use the following commands to set it (specify 10ms (4 1/2 digits), 100ms (default; 5 1/2
digits), or 1s (6 1/2 digits)):
SENSe:FREQuency:APERture {0.01|0.1|1|MINimum|MAXimum}
SENSe:FREQuency:APERture? [MINimum|MAXimum]
SENSe:PERiod:APERture {0.01|0.1|1|MINimum|MAXimum}
SENSe:PERiod:APERture? [MINimum|MAXimum]
Sensor selection for temperature
Measurements
The multimeter supports RTDs for temperature sensors. You will need to configure the multimeter
for the correct RTD type before you can make temperature measurements.
RTD
Definition
If you are using an RTD, the options are: PT100, D100, F100, PT385, PT3916, user-defined RTD,
and SPRTD. If you need to change the factors that are used to calculate the temperature of the
RTD, choose user-defined RTD, where you can change any factors you wish. The default factors
used are listed in
Table 4-3:
The temperature equation that is used to determine the RTD temperature is:
When t < 0°C:
R
t
= R
0
[1+At+Bt
2
+Ct
3
(t-100)]
Table 4-3
Default factors
Type Alpha Beta Delta R-zero
PT100 0.003850 0.10863 1.49990 100
D100 0.003920 0.10630 1.49710 100
F100 0.003900 0.11000 1.49589 100
PT385 0.003850 0.11100 1.50700 100
PT3916 0.003916 0.11600 1.50594 100
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