It is a basic multi-function instrument that can display various kinds of parameters such as display the voltage, current, Po-wer, capacity, energy, temperature, running Tim-e, and other physical parameters in real Tim-e. Over-voltage, under-voltage, over-current and over-temperature protections can be achieved through reserved relay interfaces. And the meter uses 1.8-inch color LCD as display, display data more comprehensive and clear, easy to observe. This meter is perfect for applications that require monitoring of the output voltage and current as well as charge and discharge batteries.

Features:
Bidirectional current detection, for detecting charge and discharge users can easily detect bidirectional current properties, no need to change the direction of the connection.
Po-wer off Po-wer memory function, after Po-wer off, the number of AH and WH before Po-wer off can be memorized, convenient for observation and measurement.
Tim-e and AH data clearing function, do not affect the measurement later.
The percentage of AH can be set without affecting direct discharge measurement.
Voltage, current, AH, WH, Tim-e, Po-wer, simultaneously displayed, comprehensive and clear information display.
With output disconnect function key, flexible on or off output.
With over-voltage, over-current, over-temperature and other extended-protection functions.
It can be calibrated online, enabling customers to promptly correct the error.
In the liquid crystal display can be closed when necessary, reduce Po-wer consumption.

Function Introduction:
1. BAT" Bat-tery capacity value setting, this parameter is to set the Bat-tery measured total capacity.
2. "BPC" Bat-tery remaining capacity percentage, can be set according to the value of the remaining Bat-tery AH.
3. "OVP" set over-voltage protections value, if the OVP value is set, when the actual measured voltage value is greater than the set value, it will prompt over-voltage, and cut off the relay(self-provisioned).
4. "LVP" set overvoltage protections value, if you set the LVP value, when the actual measurement of voltage is less than the set value, it will prompt the undervoltage, and cut off the relay(self-provisioned).
5. "NCP" sets the charge overcurrent protections value. If the NCP value is set, when the actual measured charging-current value is greater than the set value, it will prompt overcurrent and cut off the relay(self-provisioned).
6. "OCP" sets the discharge overcurrent protections value. If the OCP value is set, when the actual measured discharge current value is greater than the set value, an overcurrent will be prompted and the relay(self-provisioned) will be cut.
7. “OTP” sets the over-temperature protections value. If the OTP value is set, when the actual measured temperature value is greater than the set value, the over temperature will be prompted and the relay(self-provisioned) will be cut off.
8. "ADS" communication address code setting.In multi-Mac-hine communication, multi-Mac-hine communication is achieved by setting the address code.
9. "TTL" instrument Po-wers up the output state of the default relay, normally open or normally closed.
10. "CLR" no-load current correction function, if the actual load current is zero.

Specifications:
Name: Volt-ammeter
Material: ABS
Model: VA7510S, VA7520S, VA7530S, VA7550S(optional)
Display: 1.8inch color LCD display
Self-Po-wer measurement-range: 6V-75V
Measurement-range: 0-120V when external Po-wer supply
Input current measurement-range: 0-100A, 0-200A, 0-300A, 0-500A (optional)
External-supply voltage: 6-60V
Voltage: 0.01V-120V
Electric current: 0.1A-100A, 0.1A-200A, 0.1A-300A, 0.1A-500A(optional)
Capacity: 0.001AH-65000.00AH
Energy: 0.000KWH-99999.9KWH
Tim-e: 0-100 hours
Po-wer value: 99KW
Temperature: 1-100℃
Voltage: ± 1% + 2 words
Current: ± 2% + 5 words
Temperature: ±1 ℃
Measurement rate: 5 Tim-es / second
OVP (overvoltage- protection): 0.01V-500V
LVP (undervoltage-protection): 0.01-500V
OCP (charge overcurrent-protection): 0-1000A
NCP (discharge overcurrent-protection): 0-1000A
OTP(overtemperature-protection): 0-100℃
Item size:
Display board size: 78 * 42 * 26mm / 3.07 * 1.65 * 1.02in
Measuring plate size: 87 * 49 * 14mm / 3.43 * 1.93 * 0.55in
Package size: 150 * 150 * 70mm / 5.91 * 5.91 * 2.76in
Package weight:
VA7510S: 230g / 8.11ounce
VA7520S: 240g / 8.47ounce
VA7530S: 300g / 10.58ounce
VA7550S: 350g / 12.35ounce

Packing List:
1 * Volt-ammeter