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AP-01 acoustic pinpointer assembled: the ground sensor on a telescopic rod, the hand-held receiver on a neck strap, and headphones.

Assembled: ground sensor on the telescopic rod, receiver on its neck strap, headphones.

Step 3 of 4: Pinpointing

AP-01 Acoustic pinpointer

Receiver and ground sensor that hear the surge discharge through the ground, so the crew digs in the right place.

Frequency range
80–1500Hz
Filters
4
Accuracy
0.1m
Battery
9h
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Datasheet (PDF) 2 pages, English

Where it fits

The AP-01 is step 3. It starts from the distance the reflectometer measured, and it needs a surge generator firing.

  1. Step 1: Pre-locate

  2. Step 2: Condition

  3. Step 3: Pinpoint

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    • AP-01 Acoustic pinpointer

  4. Step 4: Trace route

Overview

The AP-01 comes out once the distance is known and a surge generator is firing. The operator sets the ground sensor down at stops along the cable route and listens on headphones for the thump of each discharge. Where it is loudest, the fault is underneath.

Across a band of 80 to 1500 Hz, four filters (all-pass, low-pass, high-pass, band-pass) and adaptive noise reduction separate the discharge from traffic and other noise. The 4.5-inch colour screen shows the signal as a trace and level bars. Sensor height is adjustable, and adapters suit soil and lawn.

Receiver and sensor weigh 2.4 kg together. The receiver hangs on a neck strap and runs 9 hours on a 3.7 V, 6400 mAh lithium battery, and the whole set packs into an orange hard case.

Specifications

Values from the product datasheet. Receiver and sensor details as seen on the unit.

Acoustic

Frequency range80 to 1500 Hz
Filters4: all-pass, low-pass, high-pass, band-pass
Acoustic channel80 dB
Noise reductionNoise reduction and adaptive noise reduction
Measurement accuracy0.1 m

Receiver and sensor

Display4.5 in, colour, signal trace and level bars
ControlsFour-way pad and four keys
Receiver dimensions (H × W × L)55 × 127 × 230 mm
Weight, receiver and sensor2.4 kg
BodyPlastic and aluminium
CarryingReceiver on a neck strap
Ground sensorOn a telescopic rod, two screw-lock cables to the receiver
Sensor heightAdjustable above the ground
HeadphonesClosed-back, over-ear, wired

Power and environment

BatteryLithium, 3.7 V, 6400 mAh, rechargeable
Battery life9 h per charge
Operating temperature−10 to 40 °C
Relative humidity5 to 90 %
Protection classIP43

Service

CalibrationApproval and certificate supplied

In the box

From the datasheet.

  • Headphones
  • Charger
  • Cable from receiver to sensor
  • Adapters for soil and lawn
  • Carrying case
The AP-01 packed in its orange hard case: the orange ground sensor, the receiver, coiled cables, headphones and the neck strap in cut foam.
As photographed. The telescopic rod and the neck strap are not named on the datasheet list: ask us whether your quote includes them.

Works with

The AP-01 listens for the surges a PG-10 or PG-32 fires. The CRT-015 shows where the cable runs, so the crew walks the right line.

Step 2, condition

PG-10

Surge generator, 10 kV

Surge
5/10 kV
Energy
1,000 J
DC test
10 kV
PG-32 surge generator: a grey steel case with an orange frame, two carry handles on top and an accessory pouch on the front.

Step 2, condition

PG-32

Surge generator, 30 kV

DC output
0–30 kV
Energy
1,800 J
Weight
45 kg
Cable route tracer set: a curved locator receiver with a small display, and a portable transmitter with keypad and carry handle.

Step 4, trace route

CRT-015

Cable route tracer

Set
Receiver and transmitter
Works with
TDR-901, AP-01

Price an AP-01 for your crew.

Tell us which surge generator you use, or add a PG-10 or PG-32 to the same quote.

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