5
Count In (TG330/TG320)
The AM/COUNT IN socket is set to external frequency measurement when EXT COUNT is
selected.
Maximum Allowable
Input Voltage:
50Vdc/50Vrms to 400Hz with respect to ground , reducing to 1Vrms
above 1MHz.
DISPLAY FUNCTIONS (not TG310)
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
Auto-ranging reciprocal measurement giving 4-digit resolution down to
10Hz (to 1Hz on the 3Hz range); resolution is fixed at 0·01Hz below 10Hz
(0·001Hz below 1Hz on the 3Hz range).
Accuracy is ±1 digit to 2·1Hz (to 0·21Hz, Symmetry off, or to 0·42Hz,
Symmetry on, on the 3Hz range); below this the accuracy is ±1% of range
full scale (unspecified with Symmetry on).
Display shows peak-to-peak amplitude or rms value. Display corrected for
attenuator setting. 3-digit resolution, accuracy typically ± 5% of range full
scale.
3-digit resolution; accuracy typically ± 2% setting ±1 digit.
Display corrected for attenuator setting.
External Frequency Measurement (TG330 & TG320)
5Hz to >20MHz and <20MHz to >120MHz in 2 switchable ranges.
6 digits in 0·5s; 7 digits in 5s.
±1 digit ± timebase accuracy.
±10ppm initial error; ± 5 ppm/year ageing rate; typically less than
0·5 ppm/ºC.
GENERAL
POWER REQUIREMENTS
220V AC-240V AC or 110V AC-120V AC ±10%, 50/60Hz, by internal
adjustment. Installation Category II.
+ 5°C to + 40°C, 20% to 80% RH.
Indoor use at altitudes up to 2000m, Pollution Degree 2.
260(W) x 88(H) x 235(D)mm (10.2 x 3.4 x 9.2") excluding handle and feet.
Complies with EN61010-1 & EN61326-1.
For details, request the EU Declaration of Conformity for this instrument
via http://www.aimtti.com/support (serial no. needed).