
14. PTB TYPE APPROVAL
Integrierende Oktavband-
Schallpegelmesser
nach DIN IEC 651 Kl 1I
und DIN IEC 804 Kl.1
CEL Instruments Ltd
GB - SG5 1RT
Typ CEL-266/3A
Nr
Baujahr
Mikrofon Typ CEL-192/2F
Nr
Vorverstärker Typ CEL-225/3
Nr
Wahlfreies Zubehör
Kabel CEL Typ C4493/5
Windshirm Typ CEL-2962
Kalibrator Typ CEL-284/2
Nr
Pegel 114.0 dB
CEL Instruments Ltd
35/37 Bury Mead Rd
Hitchin, Herts, England
SG5 1RT
PTB Zulassungs-
Eichung
Nr zur amtlichen
960019
21.21
91.51
Serial Number of the Calibrator
(from Calibrator Front Panel)
Serial Number of the Preamplifier
(from Preamplifier Label)
Serial Number of the Sound
Level Meter
Year of manufacture
(or date of purchase if the year
of manufacture is unknown)
Serial Number of the Microphone
(from Microphone or Calibration
Certificate)
Figure 19: Typical PTB label
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