Datasheet

ManualsBrandsRTW ManualsLoudnessAudio and loudness meter with touchscreen control

Table Of Contents

Data Sheet TM3-Primus

System

General

Power requirements: +5 V DC via USB Micro B connector

Current drain: 400 mA nominal, power-up current is much higher

Display: Capacitive 4.3’’ touch screen (272 x 480 pixel)

Connectors: 1 x USB Micro-B; USB 2.0 Full Speed con-

nector for data exchange between computer

applications and TM3-Primus, and for power

supply via computer or external mains adapter

2 x RCA-F, analog in (unbalanced, adjustable)

1 x RCA-F, S/PDIF in (unbalanced)

1 x RCA-F, S/PDIF out (unbalanced)

Dimensions (W x H x D): Table-top TM3-Primus: 82.5 x 138 x 50 mm

Panel-mount TM3-Pri-2U: 82 x 160 x 29.7 mm

Weight: approx. 320 g w/o mains adapter

Operating temperature: +5° to +40° C

Functions

• Operation with one ﬁ nger (touch sensitive

display)

• Optimized screen layout with selectable

instruments

• Multiformat PPM/TruePeak for 2-ch. Stereo

(analog, digital, PC audio via USB) and 5.1

Surround signals (PC audio via USB)

• Loudness acc. to ITU-R BS.1770-3/1771-1,

EBU R128, ATSC A/85, ARIB, OP-59,

AGCOM, CALM Act

• Loudness Chart instrument

• Loudness Range instrument (Magic LRA)

• Moving Coil (BR, VU, BBC mode)

• Stereo Correlator

• 1/3-octave spectrum analyzer (RTA)

• 2-channel Audio Vectorscope

• Monitoring (with onscreen level fader)

• Numerical displays

• USB hybrid function: Simultaneous monitoring

and metering, and additional remote control

of Start/Stop/Reset function with RTW USB

Connect software (PlugIn, Stand-alone)

Analog Inputs

Inputs: 2 analog inputs, 2 x RCA-F connectors

Input sensitivity: –22 dBu (61 mV) to +24 dBu (12.28 V), adjus-

table via potentiometer (see note below!)

Input calibration RTW: • DIN5: 0 dB reading at +6 dBu (1.55 V)

• BR IIa: “6” reading at +8 dBu (1.946 V) (UK)

• VU: 0 dB reading at +4 dBu (1.228 V) (US)

Reference Levels: • for analog scales: additionally adjustable in

software in steps of 0.1 dB

• for digital scales: relation of dBu to 0 dBFS,

adjustable in software in steps of 0.1 dB

Example: +6 dBu reads –9 dBFS on TP60

scale with +15 dBu/0 dBFS reference setting

Impedance: > 10 k

NOTE – Please read the manual before adjustment changes are

performed. The unit has been calibrated at RTW. All above mentioned analog

references will change, when modifying the input sensitivity.

Digital Inputs/Outputs

1 digital S/PDIF input, RCA-F, unbalanced,

permanently terminated with 75 

1 digital S/PDIF ouput, RCA-F

Sampling rates: 28 to 104 kHz, synchronisation to digital input

signal

USB Audio Input

(requires USB driver to be installed on Windows

systems, see Accessory)

Inputs: Readout and processing of ﬁ rst two USB audio

data streams

Modes: 2-ch. Stereo, 5.1 Surround

Sampling rates: 28 to 104 kHz, synchronisation to input signal,

internal A/D sample rate @ 48 kHz w/o exter-

nal digital signal present

Output: via S/PDIF output connector

• decoded, unchanged USB audio input signal

• decoded with or w/o onscreen level fader

controlled USB audio input signal, if Monito-

ring function is activated

Speciﬁ cations