5
Count In
The AM/COUNT IN socket is set to external frequency measurement when EXT COUNT is
selected.
Input Impedance:
1M
Ω
//25pF.
Input Sensitivity:
50mVrms (sinewave) typical; 80mVrms max.
Maximum Allowable Input
Voltage:
50Vdc/50Vrms to 400Hz with respect to ground
, reducing to
1Vrms above 1MHz.
DISPLAY FUNCTIONS
The LCD shows generator frequency simultaneously with output amplitude/offset, together with
various status annunciators. Alternatively, it is the external frequency measurement display.
Internal Measurement Accuracy
Frequency:
Auto-ranging reciprocal measurement giving 4-digit resolution down
to 10Hz (to 1Hz on the 5Hz range); resolution is fixed at 0·01Hz
below 10Hz (0·001Hz below 1Hz on the 5Hz range).
Accuracy is ± 1 digit 5MHz to 2·1Hz (to 0·21Hz, Symmetry off, or to
0·42Hz, Symmetry on, on the 5Hz range); below this the accuracy is
± 1% of range full scale (unspecified with Symmetry on).
Amplitude:
Display shows peak-to-peak amplitude or rms value. Display
corrected for attenuator setting. 3-digit resolution, accuracy typically
±5% of range full scale.
DC Offset:
3-digit resolution; accuracy typically ±2% setting ± 1 digit.
Display corrected for attenuator setting.
External Frequency Measurement
Frequency Range:
5Hz to 20MHz, fully autoranging.
Input Sensitivity:
50mVrms (sinewave).
Measurement Time:
Selectable 0·5s or 5s.
Resolution:
6 digits in 0·5s; 7 digits in 5s.
Accuracy:
±1 digit ± timebase accuracy.
Timebase Accuracy:
±10ppm initial error; ± 5 ppm/year ageing rate; typically less than 0·5
ppm/ºC.
GENERAL
POWER REQUIREMENTS
AC Input Voltage:
220V AC-240V AC or 110V AC-120V AC ±10%, 50/60Hz, by internal
adjustment. Installation Category II.
Power Consumption:
25VA max.
Operating Range:
+5°C to +40°C, 20% to 80% RH.
Storage Range:
-10°C to +65°C
Environmental:
Indoor use at altitudes up to 2000m, Pollution Degree 2.
Size:
260 (W) x 88 (H) x 235 (D) mm (10.2 x 3.4 x 9.2") excluding handle and
feet.
Weight:
1.9kg (4.2lb).
Safety:
Complies with EN61010-1.
EMC:
Complies with EN61326.
Telemeter Electronic GmbH | Joseph-Gaensler-Str. 10 | Phone +49 906 70693-0 | Fax +49 906 70693-50 | www.telemeter.info
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