This document is the user manual of ULD-300 Ultrasonic Leak Detector
This manual introduces the Amprobe TMULD-300/ULD-300 ultrasonic leak detector, its components, and safety precautions. It explains how to unpack, inspect, and set up the detector and the optional UT-300 ultrasonic transmitter.
Detailed sections cover operation of the ULD-300 detector, use of accessories such as the parabola horn, battery replacement, sensitivity adjustment, and maintenance procedures. The specification tables list temperature ranges, dimensions, power consumption, and performance standards, while the warranty and service information describe how to obtain repair support.
| Operating Temperature (ULD-300) | 0 °C to 38 °C (32 °F to 100 °F) |
|---|---|
| Storage Temperature (ULD-300) | -40 °C to 66 °C (-40 °F to 150 °F) |
| Weight (ULD-300) | 180 g (6.3 oz) |
| Dimensions (ULD-300) | 185.4 × 63.5 × 25.4 mm (7.3 × 2.5 × 1 in) |
| Frequency Response (ULD-300) | 35 kHz to 45 kHz + 6 dB |
| Power Consumption (ULD-300) | 22 mA at 9 V DC |
| Battery Life (ULD-300) | 33 hours with 9 V alkaline battery |
| Operating Temperature (UT-300) | 0 °C to 38 °C (32 °F to 100 °F) |
| Frequency (UT-300) | 40 kHz |
| Power Consumption (UT-300) | 8.5 mA at 9 V |
| Battery Life (UT-300) | 60 hours with 9 V alkaline batteries |
The battery LED turns red, indicating that the battery must be replaced.
Rotate the thumb wheel clockwise to increase sensitivity and counter‑clockwise to decrease it.
Use the parabola (pB‑1) accessory to improve detection when background noise is high.
Turn off the instrument, open the battery cover, and insert a 9 V alkaline battery (type 1604A or equivalent).