EMX WEL-200 Wireless Edge Link Manuals & Support

The EMX WEL-200 is a wireless link between a monitored sensing edge on a moving gate and the gate operator. It works up to 200 ft line of sight and meets UL 325.

One receiver supports up to four transmitters, with separate relay and pulse outputs for open and close edges. It works with 8.2K and 10K edges, and each transmitter runs about two years on two AA lithium batteries.

Buy the WEL-200 (5 options)

Identify your model

The WEL-200R receiver has four channel LEDs and, on current units, a one-digit signal quality display. Older units have a red circuit board; use the red board manual and quick start for those.

Key specs

Range	200 ft line of sight
Frequency	915 MHz, 25 channels
Transmitters	Up to 4 per receiver
Edges	8.2K or 10K, 4K to 12K accepted
Outputs	2 relays with selectable 10K, plus 300 Hz pulse
Receiver power	12 to 24 VAC or VDC
Transmitter power	2 AA lithium, about 2 years
Response time	100 ms
Operating temperature	-40 to 140 °F

Manuals and documents

Troubleshooting

Channel LED on all the time

The edge reads too low or is shorted. Read the edge with an ohmmeter. It must be between 4K and 12K at rest.

Channel LED flashes 2 times, then pauses

The edge reads over 12K or a wire is open. Check the edge wires and resistance.

Channel LED flashes once per second

The transmitter is not paired. Repeat the pairing step.

Channel LED flashes half second on, half second off

Poor signal. Keep line of sight between the receiver and transmitter through the full gate travel.
Press channel buttons 2 and 3 together to hop to another RF channel.

Fast flashing channel LED or transmitter LED

Transmitter batteries are low (under 2.7 V). Replace with two 1.5 V AA lithium batteries.

Common questions

Up to four transmitters, each with its own edge.

Two AA lithium batteries. They last about two years.

Disconnect it and read it with an ohmmeter. A 10K edge reads about 10,000 ohms at rest and drops near zero when pressed. A 2-wire normally open edge reads open at rest and near zero when pressed.

Monitored 8.2K or 10K edges. The transmitter accepts edges that read between 4K and 12K at rest.