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EN-67Manual | TM3-Primus 5 | Reference Level Adjust | 5.1 | Input level

With the Reference level menu option of the setup menu, the analog

references (input level, dBu/0 dBFS relation) of TM3-Primus can be ad-

apted to local requirements by software. The physical calibration adjusted

at RTW (see 7 | Calibration chapter) shall be unchanged not to lose the

absolute dBu referencing.

5.1 | Input level

TM3-Primus has been calibrated at RTW in the way that a DIN5 scale

reads 0 dB, if a reference level of +6 dBu is present and the analog re-

ference level setting of TM3-Primus is set to +6 dBu. The software will

automatically adjust the reference level according to the chosen country

during initial boot up. With a scale change like for instance a British scale

this would mean an automatic referencing to +8 dBu for display “6”. With

a VU instrument for example with the country selection US it would au-

tomatically be +4 dBu for 0 dB on display. The reference level setting of

+6dBu on TM3-Primus can be adjusted in steps of 0.1 dBu.

5 | Reference Level Adjust

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RTW TM3-Primus Specifications

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