EMX USVD-4X Ultrasonic Vehicle Detector Instruction Manual
- June 3, 2024
- EMX
Table of Contents
EMX USVD-4X Ultrasonic Vehicle Detector
The USVD-4X uses ultrasonic to
reliably detect the presence of a vehicle in a wide variety of drive-thru
applications including parking, access control, car wash, banking and fast
food. The USVD-4X does not require the installation of an induction loop. It
is simply mounted on a post and aimed at the desired location of detection. No
additional set-up or functional adjustments are needed. The detection head
consists of 4 ultrasonic transducers that scan the expected location for a
vehicle and activates an output.
Cautions and Warnings
**** This product is an accessory or part of a system. Install the USVD-4X according to instructions from the gate or door operator manufacturer. Comply with all applicable codes and safety regulations.
Specifications
| Power | 12-24 VDC/AC |
|---|---|
| Standby Current | 60 mA |
| Operating Range | 1- 5 ft |
| Response Time | 2.0 seconds |
| Relay Output Configuration | Form C (2 SPDT) |
| Relay Contact Rating | 1A @ 24VDC |
| Operating Temperature | -40º to 182ºF (-40º to 85ºC) |
| Housing Material | ABS plastic |
| Dimensions (L x W x H) | 3.6” (90 mm) x 2.3” (57 mm) x 5.7” (145 mm) |
Ordering Information
- USVD-4X Ultrasonic vehicle detector, includes cable grip
Connections & Wiring
-
Transducer Status LEDs
Individual transducer status LEDs flash when an echo from a surface is present 1-5 feet in front of the sensor. -
Tuning Coils
Do not adjust for any reason. This will permanently damage the unit. -
DIP Switch
Relay 1 & Relay 2 Delay
| Relay 2 Pulse/Presence | DIP Switch |
|---|---|
| 2 | 1 |
| Presence | off |
| Pulse on Entry | off |
| Pulse on Exit | on |
| Pulse on Both | on |
| Relay 2 Pulse/Presence | DIP Switch |
| --- | --- |
| 2 | 1 |
| Presence | off |
| Pulse on Entry | off |
| Pulse on Exit | on |
| Pulse on Both | on |
-
Sensitivity Adjustment
The sensitivity adjustment may be used to change the strength of the ultrasonic signal to increase or decrease the detection response. The factory setting is fully clockwise for maximum sensitivity. -
System Status LED
Flashes green when powered on. Solid green when detecting an object Terminal Block
| Terminal | Description |
|---|---|
| 1 | Power + (12-24 VDC/AC) |
| 2 | Power – (12-24 VDC/AC) |
| 3 | Presence Relay 1 – NC (normally closed contact) |
| 4 | Presence Relay 1 – COM (common contact) |
| 5 | Presence Relay 1 – NO (normally open contact) |
| 6 | Relay 2 – NC (normally closed contact) |
| 7 | Relay 2 – COM (common contact) |
| 8 | Relay 2 – NO (normally open contact) |
| 9 | Fail – Solid-State Output* |
| 10 | Spare Terminal |
*The solid-state fail output is activated when a solid object, such as ice, is present preventing 1 or more transducers from vibrating.
Installation
1. Knock out the PG hole that will be used to pass the wires through.
2. Pass the body of the cable grip through the PG hole and tighten the
backing to attach the cable grip to the housing.| 
3. Thread all wires through the cable grip and into the housing.
4. Turn off the power supply when connecting the USVD-4X power wires to
the terminal block. The terminals are not polarity sensitive.
5. Wire the USVD-4X according to the operator instructions and the
terminal block table.
6. Configure the DIP switch to the pulse/presence and delay mode desired.
7. Mount the USVD-4X perpendicular to the side of the vehicle at the
location of desired detection and 22-24” above the height of the pavement
surface where the vehicle is located.
TIP:
If using multiple USVD-4Xs it may be necessary to place a barrier up to
24×24” between the sensors to prevent units from interacting.
Adjust the sensitivity by rotating the sensitivity adjustment clockwise to decrease and counterclockwise to increase (#4 in image on previous page).
TIP:
- In most applications it is unnecessary to reduce sensitivity.
- If using multiple USVD-4Xs, it may be useful to reduce the sensitivity to reduce crosstalk.
- Two test points to the right of the sensitivity adjustment labeled GND and SENS may be used to measure the position of the sensitivity adjustment. 5V is the maximum sensitivity.
Troubleshooting
| Symptom | Cause | Solution |
|---|---|---|
| Constant detection | Solid material blocking transducer | Increase the angle of |
the housing to avoid detection of the ground or other low objects.
Turn down the sensitivity by 1V by rotating the sensitivity adjustment
counterclockwise. Attach a multimeter to the GND and SENS pins to the right of
the sensitivity adjustment to read the change in voltage.
Warranty
EMX Industries, Inc. products have a warranty against defects in materials and workmanship for a period of two years from date of sale to our customer.
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