Internal DMM measurement functions supported
| DAQ-900 | DAQ-901 | DAQ-903 | DAQ-904 | DAQ-909 |
AC/DC Voltage | ✓² ³ | ✓ | ✓ |
| ✓ |
AC/DC Current |
| ✓ |
|
| ✓ |
Freq./Period | ✓ | ✓ | ✓ |
| ✓ |
2-Wire Resistance | ✓¹ | ✓ | ✓ |
| ✓ |
4-Wire Resistance | ✓¹ | ✓ |
|
| ✓ |
Thermocouple | ✓ | ✓ |
|
| ✓ |
2-Wire RTD |
| ✓ | ✓ |
| ✓ |
4-Wire RTD |
| ✓ |
|
| ✓ |
Transistor |
| ✓ | ✓ |
| ✓ |
Capacitance |
| ✓ | ✓ |
| ✓ |
Note:
1. For the measurement of 100Ω and 1kΩ resistance ranges, it is recommended to use 4-wire resistance. The maximum resistance range of DAQ-900 is 1MΩ.
2. When measuring AC voltage, the input impedance will decrease with frequency. A source impedance of 5Ω or less will maintain specification over frequency. A source impedance of 50Ω or less will maintain specification in the 5 kHz range.
3. For DC voltage measurement, if the integration time is short and the source impedance is high, more stabilization time may be required.