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| The response time during normal measurement is 0.5 s (max.), which is the display update interval x 2. |
With RS232C, the response time depends on settings other than the communications speed. An actual measurement example is given below at 1 byte=10 bits (start bit: 1 bit, data: 8 bits, stop bit: 1 bit, no parity) with a speed of 9600 bps.
Example
After receiving the "OD" command (request data transmission), the time until 14 data items (corresponding to 261 bytes) were output was 292 ms (the time for the PC to display and store the data depends on the PC's performance, and was therefore not included in the 292 ms).
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| Yes, using instruments with firmware version 1.21 or later. You can check the version in the opening message when you first turn the power ON. |
| This error occurs when the PLL source frequency is outside of the measurement range. The measuring frequency range for the PLL source is 40 Hz to 440 Hz. You can select voltage or current for the PLL source. Select a stable signal that has as little distortion and noise as possible.
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| The frequency display and D/A output can handle only one input element at a time, either the voltage or the current.
When either the V Hz or A Hz display function indicators are lit in display C, the frequency corresponding to the lit function indicator will be output. When neither of them are lit, the frequency of the last used function and element indicators shown in display C will be output.
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| You should not use the instrument with both the direct input and external sensor terminals wired. There would be a risk of electric shock or damage to the instrument since the external sensor input terminal's Lo side, and the Lo side (+/- terminal side) of the current input terminal for direct input would both be at the same electric potential. When inputting a measurement signal to the direct input terminal, you must remove the shunt connected to the external sensor input terminal, and the current sensor. |
No, but it is possible for the following models:
- Current range 1/10 model: WT1010/WT1030/WT1030M/WT2010/WT2030
- Current range 100 A model: WT1010/WT1030/WT1030M
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WT100/WT200 Digital Power Meters |
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