ORION EM G

EMG-1643 Digital Frequency· and Time Meter
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The instrument is used for the measurement of frequency,
frequency ratio, period time, average period time, totalizing
time interval, totalizing count. The portable instrument contains
only silicon transistors and is characterized by low weight and
small size. It can be used for industrial and laboratory measurements.
Frequency measurement:
Period time measurement:
Totalizing counting:
Input voltage
(i n case of sinusoidal signal) :
Time interval and totalizing
t ime interval measurement:
Frequency ratio measurement:
Operating temperature range:
Change of reference frequency
{between 0 °C and +SO 0 C) :
Dimensions:
c fs to 1.S Mcfs
s to 10 f.'S
cf s to 1.5 Mc/s
200 mVrms to 1SO Yrms
10 IJ.S to 9999 s
fA= 1 cfs to 1.5 Mcfs
fs=O to 100 kc/s
0 °C to +SO °C
max. 8.10- 5
107x 26S x 212 mm
EMG-1646 Digital Frequency- and Time Meter
The basic instrument type EMG-1646 can be used to measure
frequency in the range of 0 to 100 Mc fs, with the Frequency
Converter plug-in unit type EMG-1689-U-82 the instrument
can be used for frequency measurements up to 3,1 Gcfs. At time
measurements the resolution of the instrument is 10 ns. The
stability of the built-in time base generator is 5.10- 9 . The instrument
is fully transistorized, the measured result appears on nine
In-line numerical indicator tubes. A printer can be connected
to the instrument, operated by a 4-line BCD code output signal.
FREQUENCY MEASUREMENT
Measuring range
DC coupled input:
AC coupled input:
Gate time:
PERIOD TIME MEASUREMENT
Measuring range:
At average period time measurement:
Averaging factor :
0 to 100 Mcfs
100 cfs to 100 Mcfs
1 f.'S to 10 s, can be
adjusted in decadic
steps
0 to 1 Mc/s
0 to 100 kc/s
1 to 10 5 period,
in decadic steps
Frequency counted :
OTHER DATA
Sensitivity:
Frequency of time base:
Stability of time base:
Dimensions:
EMG-1689-U-82 Frequency Converter
1 c/s to 100 Mcfs,
in decadic steps
(resolution in 10 ns)
100 mV
5 Mc/s
5.10- 9
177 x443 x 400 mm
The Frequency Converter, as a plug-in unit, widens the field
of application of the Digital Frequency and T ime Meter type
EMG-1646. It ensures high-accuracy and high-resolution measurements
in the frequency rangeof100 to 3100 Mcfs. It is fully
transistorized .
Frequency measurement:
Sensitivity:
Dimensions :
100 to 3,100 Mc /s
50 mV
(100 to 2,500 Mcfs)
100 mV
(2,SOO to 3,100 Mcfs)
160 x 120x210 mm
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Manufactured by EMG
WORKS FOR ELECTRONIC MEASURING GEAR
Budapest XVI., Cziraky u. 26-32. HUNGARY
Telex: 33-SO.
Exported by
METRIMPEX
HUNGARIAN FOREIGN TRADING COMPANY FOR INSTRUMENTS
Budapest, 62. P.O.B. 202
Cable: INSTRUMENT, Budapest. HUNGARY
" .2417 E1yetemi Nyomda m"yr.yomua, Buclap•t
(Ma1yar Hlrdet6)