SIN9020S Voltage Meter
Overview
The SIN9020S voltage meter is able to measure:
- voltage
- current
- charge and discharge capacity
- time
- power
Protection Features
- over voltage protection
- under voltage protection
- over current protection
- over-charging capacity protection
Technical Specs
Project | Parameters | ||
Voltage measuring range | Self-powered voltage measurement range | 10V~90V | |
External power measurement range | 0~90V | ||
Current input \ output current measurement range | 0~20A | ||
Display method | Color liquid crystal display | ||
Display Resolution | Voltage | 0.01V | |
Current | 0.01A | ||
Capacity | 0.01AH | ||
Time | 1min | ||
Accuracy | Voltage | 1% + 2 words | |
Current | 2% + 5 words | ||
Measurement rate | 5 times / sec | ||
OFT (out protection) | 0.01H~99.9H | ||
Dimensions (length × width × height) | 79×43×52（mm） | ||
Mounting hole opening (mm) | 76.5*39.2（mm） | ||
Wiring
From factory, Vext is connected to VCC.
To power the meter from an independent source, you will need to unsolder a jumper inside the meter. Once done, you can power the meter from an independent source.
Settings
Protection Functions
OVP - Over Voltage Protection
- OPP - Over Power Protection
- OCP - Over Current Protection
- OFT - Over Time Protection
- OAH - Over Ah Protection
- LOP - Under Voltage Protection - Does not work with this model since there is no relay
To Enable Protection Functions
- navigate to it using the up and down arrows
- click the OK button.
The indicator will turn green when enabled and grey when disabled.
To Set Protection Function Parameters
- navigate to it using the up and down arrows
- click and hold the OK button for about 3 seconds
- adjust the value by using the arrow keys
- press OK to exit
Factory defaults are 000.
Setting the Capacity of your Battery
- navigate to OAH using the up and down arrows
- click and hold the OK button for about 3 seconds
- set the Ah capacity by using the arrow keys
- press OK to exit
Charge/Discharge Indicator
The OUT arrow will point:
- Right for Charging
- Left for discharging
Resetting Meter
To reset the meter, move the arrow below LOP and click OK.
Calibration Mode
Power off the meter, click and hold the ok button and power up the meter.
Turn Screen off
Move arrow up past VOP and click OK.
VAC9010H Meter
This model is similar to the SIN9020S meter but has a current transformer for measuring current. This model also has the ability to trigger a relay in the event of low voltage.
Wiring
Connections
All connections to the meter are made from the current capacitor board.
| Connection | Description |
|---|---|
| Bat | Batter Monitoring Connection (10-90v) Meter will get power from this connection when jumper is set to J4. |
| Relay +/- | Relay Connection |
| Vext +/- | Power supply connection. When connecting a relay, this voltage will be used to trigger the relay. (10-60v) |
| Jumper | J3 - Relay or Power Supply Connections J4 - No Relay or Power Supply Connections |
With No Relay or Power Supply Connections
Note: Jumper should be set to J4.
With Independent Meter Power
Note: Jumper should be set to J3.
With Relay
Note: Jumper should be set to J3.
References
| Reference | URL |
|---|---|
| Manual for SIN9020S Meter | |
| Manual for VAC9010H Meter |