Relay Board for Switching Pumps and Valves Buy Now
The VG-RELAY-DC board is perfect for controlling traditional sprinkler valves, pumps, or interfacing to other control systems. It interfaces directly to Vegetronix soil moisture sensors. Because it uses a 5A mechanical relay, it can directly control higher power AC or DC devices. It has 2 LEDs to indicate that the board has power, and the on/off state of the relay.
The VG-RELAY-DC board interfaces to a single VH400 soil sensor, and can activate a high power AC or DC load such as a valve or alarm, or other control device, when a moisture level is reached. The threshold is easily set with the onboard variable resistor, and a small screwdriver. The relay board can be configured with a jumper to turn the relay on when the sensor detects wetness or on when the sensor detects dryness.
The VH-RELAY-DC also serves as an evaluation board. If you are thinking about testing our VH400 soil moisture sensors you should consider purchasing this board as well.
Applications
- Perfect for evaluating our VH400 soil moisture probes.
- Interruption and control off irrigation and sprinkler systems.
- Interface soil moisture sensors to home automation systems.
- Control and monitoring of moisture content in bulk foods.
- Rain and weather control functions.
- Environmental control functions.
- Water conservation applications.
- Fluid level measurements and control.
Features
- Powered from a wide range DC supply.
- Can be configured as a normally open or normally closed contact with a simple jumper setting.
- Uses a mechanical relay.
- Can control a 5A 250V load.
- Interfaces to a single VH400 probe.
- Low power.
- LED indicators, indicate power on and relay contact.
- Terminal blocks for quick connection.
- Low price.
- Small size.
- 4 mounting holes in each corner.
Relay Board Selector Guide
Vegetronix offers a variety of relay boards for nearly every application. See our Relay Board Selector Guide for help in determining which board is appropriate for your application.
Other Vegetronix Products of Interest
- Soil Moisture Sensor Relay Boards
- VH400 Soil Moisture Probes
- VegeHub Garden Sensor WiFi Hub
- SDI-12 Sensor Engine
- SDI-12 to RS232 Translator
- SDI-12 to USB Translator
- Soil Moisture Meter
- Universal Sensor Display
- Water Level Sensors
- Soil Temperature Sensors
- Voltage to Current Loop Translators
- SDI-12 Protocol Translators
- Data Loggers
- Extension Cable for VH400 Probes
Pricing and Ordering Info
For volume pricing contact us.
| ORDER INFO | |||
|---|---|---|---|
| Part Number | Description | Price | Purchase |
| VG-RELAY-DC | AC Relay board for the VH400 probes. Interfaces to a single VH400 Moisture Sensor Probe. | $39.95 | Buy Now |
Specifications
| VG-RELAY-DC | |
|---|---|
| Power consumption | < 40mA when relay engaged. |
| Supply Voltage | 6V to 24 VDC. |
| Relay Load | 5A at 250VAC maximum load |
| Dimensions | 1.75in by 1.75in |
| Number of sensor interfaces | 1 |
| Number of relay outputs | 1 |
Wiring Table
| Terminal Block TB1 (INPUT POWER INTERFACE) | |
|---|---|
| Pin | Description |
| 1 | GROUND |
| 2 | DC input 1 (max 24VDC rms) |
| Terminal Block TB2 (SENSOR INTERFACE) | |
|---|---|
| 1 | GROUND: (connect to probe ground - bare wire) |
| 2 | SENSE: (connect to probe output - black wire) |
| 3 | POWER: 5V (connect to probe power - red wire) |
| Terminal Block TB3 (RELAY INTERFACE) | |
|---|---|
| 1 | Relay contact 1 |
| 2 | Relay contact 2 |
How to Get Started
The best way to get started is to order a few low cost probes and relay boards and try them out in your application.
Buy Now