Source and measurement functions
Voltage source, current source, voltage measurement, current measurement and resistance measurement are available by specifying the source and measurement functions.
Voltage and current source mode
There are four source modes; DC, pulse, DC sweep, pulse sweep. Then, the sweep modes are classified into four sweep types: fixed sweep, linear sweep, random sweep (any type of waveform generation by user's programming), two slope linear sweep (linear sweep with step value switching). The minimum pulse width is 50 µs. The minimum cycle is 2 ms, or 500 µs without measurement.
HI/LO limiters separate setting
In voltage or current source, the HI/LO limiter settings are very important. The 6247C/6247G has a function that can set the HI and LO limiters individually. Furthermore, for the voltage-limiter, both HI and LO limiters can be set homo-polar. This prevents a capacitor or a battery from being over-discharged. Also, it is suitable for evaluating devices such as LDs that are used at a constant current and do not tolerate reverse voltage application.
The 6247C/6247G can select from three output OFF statuses; STBY (output relay OFF), HiZ (output relay ON and high resistance), and LoZ (output relay ON and low resistance). Using this function can omit unnecessary relay ON/OFF operations, which extends the relay lifetime and improves the system throughout.
In addition, the setting of a suspend voltage (voltage in HiZ and LoZ status) can prevent transient current from being generated when connecting voltage sourcing devices such as batteries.
Sample hold measurement
Sample hold measurement is available in the pulse mode and the pulse sweep mode. Measurement holds an input signal immediately before pulse falling edge, and A/D conversion is implemented for integration time of 100 µs. This function enables precise values to be measured without setting the measurement delay time.
|Number of digits for generation||4½|
Maximum output (top)
Minimum resolution (bottom)
+250 V, -15 V/320 mA
|±320 mA/+250 V, -15 V|
Number of digits for measurement
|Accuracy (typical range)||0.02 %|
|Minimum measurement resolution||Voltage||10 μV|
|Maximum measurement resistnace
/ Minimum resolution
|125 GΩ/30 μΩ|
|Pulse application / Measurement||Available|
|Minimum pulse width||50 μs|
|Interface||USB, RS232||USB, GPIB|
*For the detailed specifications, please download the brochure from "Documents."