Specification for Topward 1210 Frequency Counter

Frequency Range 0.1Hz to 100MHz
Display Digits 8 Digits 0.5" Green LED Displays
FREQUENCY MEASUREMENT
Range (Direct) 0.1Hz to 100MHz
Range (Pre-Scale) N/A
Gate Time (Direct) 0.01S, 0.1S, 1S, 10S
Gate Time (Pre-Scale) N/A
Resolution (Direct) 100Hz, 10Hz, 1Hz, 0.1Hz
Resolution (Pre-Scale) N/A
Accuracy ± (1 count + Timebase Accuracy + Trigger Error)
INPUT SELECTION
Sensitivity (CH-A) (15mVrms) / 100MHz
Sensitivity (CH-C) N/A
Impedance (CH-A) 1MW
Impedance (CH-C) N/A
Attenuator (CH-A) X1, X20
AC / DC Coupling Only on Channel A
Low Pass Filter 100KHz nominal 3dB point (Channel A Only)
Trigger Level ADJ. Only on Channel A (+2.5VDC to –2.5VDC)
TIMBASE
Freq. (Direct) 10MHz ± 10ppm
Freq. (Pre-Scale) N/A
Power Source ACV 115V / 230V, ± 10%, 60Hz / 50Hz
Dimension 262 (W) x 85 (H) x 260 (D)
Gross Weight 1.5Kg
Accessories ACS-003 BNC to clip X1, Operation manual X1

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