90V 20A Dual Color Display Charge Discharge Voltage Meter Meter With Relay

Characteristics
1. Bidirectional current detection, users who detect charging and discharging can easily detect bidirectional current without changing the direction of wiring.
2. Power-off memory function, after power-off, it can memorize the AH number before power-off, which is convenient for observation and measurement. 3. The time and AH number reset function will not affect the next measurement.
4. It is possible to top up the AH number without affecting the direct discharge measurement.
5. The voltage, current, charging capacity AH number, WH number, time and power are displayed at the same time, and the information on the display is complete and clear.
6. With an output turn-off function key, the output can be flexibly turned on or off.
7. With overvoltage, overcurrent, overload, time limit, overload and other protection functions. 8. It can be calibrated online, which is convenient for customers to correct errors in time.
9. If necessary, the liquid crystal display can be turned off to reduce the power consumption of the product.
Specifications
1. Voltage measurement range:
- Measuring range when self-powered: 10V~90V
- Measuring range with external power supply: 0~90V
- Input/output current measurement range: 0~20A
2. Display Mode Color LCD display
3. Display resolution
- Voltage: 0.01V
- Current: 0.01A
- Capacity: 0.01 Ah
- Time: 0.01H
4. Precision
- Voltage: +/-1%+2 words
- Current: +/-2%+5 characters
5. Measurement rate: 5 times/second
6. Type of protection and adjustment range:
- OVP (over voltage protection): 0.01V~90V
- OPP (overload protection): 0.01W ~ 9.99KW
- LVP (undervoltage protection): 0.01V~90V
- OCP (Over Current Protection): 0.1~100A
- OAH (overcharge protection): 0.01AH ~ 999AH
- OFT (timeout protection): 0.01 hours~99.9 hours
7. Dimensions (L x W x H): 79 x 43 x 52 (mm)
8. Mounting hole opening (mm): 76.5 x 39.2 (mm)