USER GUIDETM3 Tapping Machine
Impact Sound Insulation Measurement Source

The TM3 Tapping Machine is a precision impact noise source forbuilding acoustic measurements. It is typically used for the assessment of general impacts in dwellings that occur on floors or stairs
in a building. The machine can be switched On/Off manually or via
remote control. It is powered by a built-in battery, or from mains
power.

Control panelwith Antenna

NOTE

This User Guide refers to the TM3 rev. A1.

Preparations
TM3 Tapping Machine with Antenna,
Remote Control, Gauge, Wrenchand Battery Charger

MainSwitch

TM3 front view
Hammer #5

Hammer #1

1. Rock the main switch to position ‘ON’.
2. Connect the battery charger to mains power and to the corresponding
plug on the machine’s front panel. As soon as the charger is connected,
the ‘Batt.‘ LED will start flashing:amber: charging in progress
green: battery fully charged (→ switch OFF the TM3 and disconnect the charger)
Hint
As soon as the voltage available at the battery is getting
low, the ‘Batt.’ LED will start flashing redSetup
1. Put the machine on a flat, stable ground.
2. Plug the antenna to the BNC connector on the control panel.
Hammer Fall Height Adjustment

Gauge
Hammer drop height adjustment

1. Slowly turn the knurled handle counter-clockwise until hammer #1
falls down; then lift the hammer with one hand and turn back (clockwise) the handle a little bit, until the hammer is kept in its top position.
2. Adjust the hammer fall height by fitting the 40.8 mm gauge beneaththe hammer with light friction evident. For this purpose, rotate themachine’s feet clock- or anti-clockwise in order to raise or lower themachine, respectively.

KnurledHandle

3. Repeat steps 1. and 2. with hammer #5. Take care to maintain thehorizontality of the machine by checking the spirit level.
TM3 rear view

4. Upon completion of the procedure, tighten the lock nuts of all threefeet by using the wrench.

Hint

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The setup procedure is explained in this instruction video:
https://youtu.be/zdaYmEaqgWs
Mar 22, Page 1 / 3

USER GUIDEOperation
Rock the main switch to position ‘ON’ to arm the tapping machine andshortly press the ‘Operate’ button on the TM3 control panel.
Now you may start / stop the machine in either of the following modes.
• Remotely: press the button of the TM3 Remote Control sender toswitch the machine ON or OFF.
• Manually: shortly press the ‘Operate’ button on the TM3 control panel
to switch the machine ON for 10 minutes.
TM3 Remote Control (sender)

red LEDRF Learn

Tapping Machine TM3Operate Press short: Power ON
 Press short: Run (10 min.)Press again: Stop Press 3 sec.: Power OFF

StatusBatt.

Green: ONFlashing: running
Red: turn OFF

TM3 Control Panel

ServicePress the ‘Operate’ button again shortly to stop the TM3.
Hint
The manual operation mode allows you to run the machine without using the remote control.
Switch OFF the TM3 by pressing the ‘Operate’ button for > 3 seconds.
Pairing the Remote Control with the TM3 (only if required)
1. Push the ‘RF Learn’ button on the TM3 Control Panel → the red LEDturns on
2. Press the button of the TM3 Remote Control sender for a• first time → red LED turns off• second time → red LED flashes for a few seconds• third time → TM3 switches into operation mode
• fourth time → TM3 switches to standby mode
Maintenance
The TM3 tapping machine basically requires no maintenance by the user.
However, in case of prolonged use in very dusty environments, it may
be advisable to clean the surfaces of the metal hammers with a clean,
dry cloth.
NOTE

Neither the metal hammers nor their linear guides shallbe oiled or greased under any circumstances, as this canlead to contamination and impair the correct operation.

Generally, it is recommended to send the tapping machine for calibration
once a year.

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USER GUIDE

Specifications TM3Standards

ISO 16283-2, ISO 717-2, ISO 10140-3/-4/-5, ISO 140-6/-7/-8
DIN 52210-6, ASTM E492, ASTM E1007

Power supply
Input
OutputConsumption
Coaxial power connector

100 to 240 VAC, 50/60 Hz, 1.0 A
18 VDC ± 10%, 2.22 A
40 W max.
D = 5.5 mm, d = 2.5 mm, –Battery
TypeCharge timeContinuous operation

12 V, 3.2 Ah Lead-Acid gel (no maintenance required)approx. 8 hours
up to 2 hours

Hammers
Material
WeightDiameter
Distance between hammers
Rated drop height

Stainless steel, hardened
500 g ± 6 g (1.1 lbs ± 0.212 oz)
30 mm ± 0.2 mm
100 mm (3.94”)
40 mm (1.575”)

Dimensions L x W x H

650 x 215 x 275 mm (25.6” x 8.5” x 10.8”)

Weight (including battery)

10.2 kg (22.5 lbs)

Temperature, humidity
Storage
Operation–20° to +70°C (–4° to 122°F) @ ≤ 90% RH (non-condensing)–10° to +50°C (14° to 158°F) @ ≤ 90% RH (non-condensing)

Remote Control
FunctionTransmission power
Dimensions

Tapping machine ON/OFF
1 mW
68 x 36 x 18 mm / 25 g (2.7 x 1.4 x 0.7” / 0.9 oz)

EMC conformity

EN 61326-1:2013 / CISPR11 / BS EN 55011:2009+A1:2010

Scope of supply (included)• Carrying bag• Battery charger• Drop height gauge• 17 mm wrench• Remote control sender• Antenna• Manufacturer calibration certificate

Recommended calibration interval

1 yearOrder information

NTi Audio # 600 000 520 (433 MHz)NTi Audio # 600 000 529 (USA, 315 MHz)NTi Audio # 600 000 528 (Japan, without RC)+All information subject to change without notice.

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