Philips - PM 6668 - Frequency counter
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Philips PM 6668
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Equipment:
PM 6668
Date:
1987
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Information
The PM 6667 and PM 6668 are microcomputer based frequency
counters, spanning a frequency range of 10 Hz ... 120 MHz
(PM 6667) and 10 Hz ... 1 GHz (PM 6668).
The use of the microcomputer allows a new approach in
frequency measurements, that eliminates the traditional ±1
cycle error. By making a multiple period measurement and
computing the reciprocal value, these counters perform high
resolution frequency measurements on low frequency signals.
Another microcomputer feature in these counters is the
automatic range selection. The measuring result is always
displayed with maximum resolution without overflow and with
proper indication of Hz, kHz, MHz and decimal point.
There is choice between two measurement rates; NORMAL
with 7-digits resolution every second or FAST with 6 or 7-
digits resolution every 200 ms. The fast mode is used for
measuring changing frequencies as with tuning.
The following options are available: a more stable time base
version with TCXO (/02 version), a rechargeable battery unit
PM 9601 that can be mounted inside the counter, an impact
resistant (ABS) protective carrying case PM 9602 and a 19"
rack/panel mount adapter PM 9603.
The 7-digit liquid crystal (LCD) display contains also the
unit and decimal-point indicators.
After you switch on the counter, a self test is executed.
Should an error be detected, it is shown on the display by a
diagnostic code.
2 Manuals
User manual
Manual type:
User manual
Pages:
47
Size:
73.6 MB
Language:
english
Revision:
Second Edition
Manual-ID:
9499 463 01617
Date:
January 1987
Quality:
Electronic document, no scan, very well readable.
Upload date:
Jan. 29, 2017
MD5:
254f5c0b-1564-04b4-0f9d-1c6a3b49dfd9
Downloads:
1918
Service manual
Manual type:
Service manual
Pages:
74
Size:
3.4 MB
Language:
english, german, french, italian, dutch
Revision:
second edition
Manual-ID:
9499 463 01617
Date:
February 1986
Quality:
Scanned document, all readable.
Upload date:
Jan. 30, 2017
MD5:
2182ae6e-f406-60ce-3707-19f767949657
Downloads:
1319