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AC Filter specifies one of three different AC filters to optimize low frequency accuracy or achieve faster AC settling times.
The multimeter selects the slow, medium, or fast filter based on the input frequency specified. Applies to AC current and voltage measurements only.
Valid range: 0 | Slow (3 HZ to 300kHz) | 1 | Medium (20Hz to 300kHz) (default) | 2 | Fast (200 Hz to 300 kHz) |
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Function sets the function to be configured by the other control settings.
The following are valid ranges:0 | DC Voltage (default) | 1 | AC Voltage | 2 | 2-Wire Resistance | 3 | 4-Wire Resistance | 4 | DC Current | 5 | AC Current | 6 | Frequency | 7 | Period | 8 | Continuity | 9 | Diode Testing | 10 | VDC:VDC Ratio |
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Manual Res. is expressed in terms of the number of digits the multimeter can measure or display.
You can set the resolution to 4, 5, or 6 full digits, plus a 1/2 digit, which can be only 0 or 1. Select 6.5 digits to increase measurement accuracy and improve noise rejection. Select 4.5 digits to increase measurement speed.
The following are valid ranges: 0 | 4.5 Digits | 1 | 5.5 Digits (default) | 2 | 6.5 Digits |
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VISA session is a unique reference to an instrument I/O session. It identifies which device to communicate with and all configuration information to perform the I/O.
A VISA session is a unique logical identifier used by VISA to communicate with a resource. The VISA session is maintained by the VISA resource name control and is not seen by the user.
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Fixed DC Input Res.is the input resistance of the multimeter. The input resistance is normally fixed at 10 Mohms for all DC voltage ranges to minimize noise pickup.
To reduce the effects of measurement loading errors, you can set the input resistance to greater than 10 Gohms for the 100 mVDC, 1 VDC, and 10 VDC ranges. Fixed DC Input Res. applies only to DC Voltage measurements and is disabled for all other functions.
Valid range: T: ON (default) or F: OFF.
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error in describes error conditions that occur before this VI or function runs.
The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurs before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
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status is TRUE (X) if an error occurred before this VI or function ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI or function ran. The default is FALSE.
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code is the error or warning code. The default is 0.
If status is TRUE, code is a non-zero error code. If status is FALSE, code is 0 or a warning code.
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source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning. The default is an empty string.
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Range/Resolution selects automatic or manual ranging and resolution. You can set the resolution to 4, 5, or 6 full digits, plus a half-digit that can only be a 0 or 1. Use 6.5 digits for high accuracy or 4.5 digits for high speed. The default resolution is 5.5 digits.
If TRUE (default), the VI uses automatic ranging and resolution. If FALSE, the VI uses manual ranging and resolution.
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Autozero instructs the multimeter to internally disconnect the input signal following each measurement and take a zero reading. The multimeter does this when Autozero is enabled (default). It then subtracts the zero reading from the preceding reading.
The multimeter subtracts the zero reading from the preceding reading. This prevents offset voltages present on the input circuitry of the multimeter from affecting measurement accuracy. Autozero applies to DC Voltage, DC Current, and 2-Wire Ohms measurements only.
Valid range: T: ON or F: OFF (default).
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Manual Range specifies the desired range for the selected function.
Valid range depends on the setting of Function. Function can have the following settings:
- AC Voltage: 0.1, 1, 10, 100, 1K Volts
- DC Voltage: 0.1, 1, 10, 100, 1K Volts
- 2-Wire Resistance: 100, 1K, 10K, 100K, 1M, 10M, 100M Ohms
- 4-Wire Resistance: 100, 1K, 10K, 100K, 1M, 10M, 100M Ohms
- DC Current: 0.01, 0.1, 1, 3 Amps
- AC Current: 1, 3 Amps
- Frequency: Auto ranging
- Period: Auto ranging
- Continuity: Auto ranging
- Diode: Auto ranging
- Ratio: Auto ranging
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dup VISA session is a copy of VISA session. Use dup VISA session programmatically to pass VISA Session to any calling VIs.
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error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces.
Right-click the error out indicator on the front panel and select Explain Error from the shortcut menu for more information about the error.
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status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred.
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code is the error or warning code.
If status is TRUE, code is a non-zero error code. If status is FALSE, code is 0 or a warning code.
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source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning.
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