Product features:
1. The board has built-in charging management, with charge and discharge protection
2. Calibration value is six and a half digit count, accurate and reliable, according to the use of demand recommended every two years to do a recalibration calibration conditions, time and calibration value record card will be pasted on the benchmark
3. With indicator, long press 2 seconds after the power on, when the power on four lights at the same time a light
4. This product is a precision voltage reference, programmable four common output voltage: 10.0 V, 7.50 V, 5.00 V and 2.50 V
5. Voltage output interface with 2mm copper test socket, easy to snap into the pen multimeter, used to measure or calibrate other instruments
Product parameters:
Battery: 300mAH benchmark special battery (product does not include the battery)
Battery voltage: 3.7V
Battery type: 14250
Charge and discharge interface: micro USB
Voltage: DC 5V
Output interface: 2mm banana socket
Instructions for use:
1. The benchmark is not used every two months fully charged in turn, the board has built-in charge management, charge and discharge protection are available, note that the battery polarity must not be connected to the reverse
2. The output interface is 2mm banana socket, at the same time there is SMA output interface calibration using HP3458A eight and a half bit multimeter calibration (after sufficient warm-up use) calibration value for six and a half count, accurate and reliable, according to the use of demand recommended every two years to do a recalibration calibration conditions, time and calibration value record card will be pasted on the benchmark, please keep it properly.
3. long press 2 seconds to turn on the power, when the four lights on at the same time, and then the output 2.5V reference voltage after the power on short press the button for gear switching, in order 2.5V-5V-7.5V-10V long press three seconds for the shutdown, the voltage indicator after the shutdown immediately extinguished
Product list:
1* Voltage reference board (the product does not include the battery)
