Hilti PS 20 User Manual

PS 20

Operating instructions

GB

2

PS 20 Detector

This operating instructions contains
information on how to use the tool as well
as safety notices (see chapter ”Safety

notices”).

Please read these instructions carefully
before using the tool.
Also place it at the disposal of anyone
who is to use the tool.

We recommend keeping the instructions
and tool together.

Symbols used

Product ID

Type and serial number are on the plate on the
underside of the tool.
Write this information into the manual and always
use it as reference when calling us or our repre­sentative for service or other related information.
Type: PS 20

Serial no.: ____________________

The symbols used in the manual have the following
meaning:

Warning:

Operating hazard or health hazard, even
death of the operator if disregarded.

Operating hazard or minor health hazard to
the operator. May however cause
major damage to the equipment and envi­ronment. May also cause expensive repairs.

Operator information

Helps in using the equipment properly and
more efficiently.

Content PS 20 Detector

Operating instructions PS 20

1. Product information . . . . . . . . . . . . .3

1.1 Tool overview........................................3

1.2 PS 20 features ......................................3

1.3 Display and keypad ..............................3

1.4 Technical data........................................4

1.5 Items supplied at time of purchase ......5

2. Safety precautions . . . . . . . . . . . . . .6

2.1 Please read now! ..................................6

2.2 Intended purpose..................................6

2.3 Electromagnetic Compatibility (EMC)....7

2.4 FCC statement ......................................7

2.5 Disposal ................................................7

3. Operation . . . . . . . . . . . . . . . . . . . .8

3.1 Inserting the batteries ..........................8

3.2 Switching on/off and calibrating............8

4. Working with the PS 20 . . . . . . . . . .10

4.1 Detecting reinforcement & non-ferrous,

metallic objects..........................................10

4.2 Menu Functions ..............................12

4.2.1 Calibration ......................................12

4.2.2 Setting minimum depth of coverage 12

4.2.3 Switching back light on/off ............13

4.2.4 Setting the offset ............................13

4.2.5 Switching the acoustic beep on/off 14

4.2.6 Localising live electrical cable ........14

5. Settings menu . . . . . . . . . . . . . . . .16

5.1 Set units to mm/in ..............................16

5.2 Test the display....................................16

6. Care, storage, transportation . . . . . .17

6.1 General care ........................................17

6.2 Storage ................................................17

6.3 Transportation ....................................17

7. Displayed notices . . . . . . . . . . . . . .17

8. Accessories . . . . . . . . . . . . . . . . . .18

9. EU-conformity declaration . . . . . . . .18

10. Warranty . . . . . . . . . . . . . . . . . . .19

3

1. Product information

1.1 Tool overview

1 Keypad
2 Display
3 Marking hole
4 Sensor head
5 Battery compartment cover

(exchangeable)

6 Sensor head cover (exchangeable)
7 Holes for hand strap

1

6

4

3

7

5

2

1. Product information

The tool is intended for use as a detector. It can
detect ferrous metals (E.g. steel reinforcing
bars), non-ferrous electrical conductive metals
(E.g copper pipe, aluminium) and can detect
the presence of an electrical field, making it
possible to detect live electrical cable. As well
as detecting the position of reinforcing bar
accurately, it can also determine the depth of
the reinforcing bar. It cannot determine the
depth of any other material.
The PS 20 detector can, within certain limitati­ons be used to estimate or localise the position
of a live electrical cable using the special live
electrical cable detection function.

- automatic object recognition and display of
detected reinforcement

- Detection of reinforcing bars within a defined
minimum depth (ignoring any reinforcement
that lie below this depth).

- Adjustment of detected depth for reinforce­ment containing impurities

- Detection of unshielded, live electrical cable.

1.2 PS 20 features

1.3 Display and keypad

1 Indication light
2 Acoustic beep indication
3 Signal strength bar
4 Live wire symbol
5 Function menu
6 Keypad
7 Battery low symbol
8 Unit of measure
9 Depth of coverage

10 Non-ferrous metal detection.

Typically shows detection of copper or

aluminium

1

7
8

9

3

2

4

10

5

6

4

86

280

95

1.4 Technical data

Reinforcement detection

All figures based on bar diameter of 12mm
(0.5 in), round reinforcing bars, magentic per­meability 85-105, concrete surface smooth
and flat, reinforcing bars at right angles to
direction of scan, no interfering influences.

Depth range for detection

Depth range for detection
0-100mm (0 - 4in)

Depth range for coverage depth
measurement 10 - 80 mm

Accuracy of depth of coverage
measurements

metric:
from 10-30mm - +/-2mm
from 30-60mm - +/-2mm +/-10% of depth
from 60-80mm - +/-5mm +/-10% of depth
imperial:
from 0.4-1.18 in - +/-0.08in
from 1.18-2.36 in - +/-0.08in +/-10% of depth
from 2.36-3.15 in - +/-0.2in +/-10% of depth

Separation of reinforcement

Min 42mm (1.7 in) bewteen bars or
1:1.12, whichever is greater.

Non-ferrous metal detection

0 - 60 mm with 10 - 30 mm (tube-ø)
(0 - 2.4 in with 0.4 - 1.2 in, ( tube-ø)

Localising live electrical cable

Will detect cable 100-240V 50/60Hz.
Accuracy to which cable can be localised on
the surface depends on a variety of factors
such as air humidity, moisture in the materi­al, elements close to the cable.

Smallest unit displayed 1mm (1/32 in)

1. Product information

Power supply and battery

Type: AA (LR6, AM3, Mignon)
Standard: 4 alkaline manganese cells
Optional: rechargeable NiCd, NiMH
Warning symbol when battery charge low
Battery life – 40h continuous operation at
23°C (73°F)

Automatic switch-off

3 minutes after a key press is requested and

not carried out.

Operating temperature

–10° C to +50° C (14° F ... 122° F)

Storage temperature

–20° C to +60° C (-4° F ... +158° F)

Proofing

Dust and splash proof,

IP 54 in accordance with IEC 529 standards.

Relative humidity

Max. 95% in accordance with IEC 68,

DIN EN 60068. Does not apply to live electric
cable detection which is adversely affected
by high levels of relative humidity. Refer to
chapter 4.1 for guidance.

Weight

600 g (1.32 lbs) not including batteries

Dimensions (LxWxH)

280 x 95 x 86 mm (11" x 3.7" x 3.4")

Illustration with dimensions [mm]

5

1. Product information

Pos. Pcs. Description

11PS 20 case
21PS 20 detector with sensor head

cover and battery compartment

cover
34AA type batteries
41PS 20 carrying pouch
52Marking pencils
61Operating manual and quick guide
71Replacement sensor head cover
81Replacement battery compartment

cover

1.5 Items supplied at time of purchase

12

34

PS 20

56

78

6

2. Safety precautions

2. Safety precautions

2.1 Please read now!

These warnings should put PS 20 owners and
operators in the position where they can recogni­ze possible danger in advance and avoid it,

i.e. prevent it. The owner must make sure all

operators understand and follow these warnings.

2.2 Intended purpose

The Hilti PS 20 detector is intended to be used
for the following purposes:

• detecting and depth of coverage measure­ment of steel reinforcement.

• detecting copper tubing and aluminum parts.

• localising live electrical cable.

The PS 20 detects electrically
conductive ferrous and non-ferrous
metals. The presence of small objects
made from such materials or the pre­sence of objects made from other
materials cannot be ruled out.

Never attempt to open up the structu­re without first turning off the power
supply.

In order to guarantee reliable results,
the tool must not be used during
large temperature changes. Allow the
tool time to adjust to the surrounding
ambient temperature before use.

Measurement and evaluation of the
measurements should be performed
by properly trained personnel.

Use as intended

Misuse

They:

• have read and understood the operating
instructions

•are aware of the special features and limita­tions of the measuring principle used

• possess sufficient knowledge of reinforce­ment technology.

• Using the product without following the
instructions in the manual.

• Using the product outside of application limits
or technical specifications.

• Using the product before checking the mini­mum depth and offset function
settings. When set incorrectly, these will result
in misleading or incorrect measurements.

• Using in areas of electromagnetic anomalies.
This may result in
misleading or incorrect measurements.

• Using in areas where there is a danger of
explosions.

• Using in the proximity of medical
equipment. Use near such equipment may
result in disturbances or failure of it.

• Do not immerse in water or use in very heavy
rain.

• Opening parts of the product other than the
battery compartment cover.

• Modifying and/or adding parts to the product.

• Using third party accessories not explicitly
approved by Hilti.

• Using a damaged product or a product that
returns results that are not plausible.

• Measuring with very worn or dirty sensor head
cover or battery compartment cover.

• Measuring without sensor head cover or bat­tery compartment cover

• Using without first testing the accuracy.

• Using to detect metal in humans or animals.

• Use of measuring results for purposes relating
to safety without control measures and eva­luation by qualified specialists. (e.g. civil
engineers)

• Drilling very close to or on marked live electric
cables or pipes.

• Drilling on marked reinforcement deeper than
the depth displayed on the tool, also taking
into account depth accuracy specifications.

Continues