1. Overview:
The HZ331 is a small frequency meter that measures low and high frequency signals and adds a 500 kHz pulse accumulator.
The module is easy to use and selects different test methods by pressing the button.
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2.product application:
● Measuring pulse frequency;
● Measuring the radio frequency;
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3, Technical parameter :
.Measuring low frequency range: 1Hz ~ 10MHz
.Measuring low frequency voltage range: +/-0.8V ~ +/-7V
.Low frequency resolution: 1 Hz
.Measuring high frequency range: 10MHz~7.3GHz
.Measuring high frequency voltage range: -12dBm ~ +10dBm
.Measuring high frequency resolution: 1KHZ
.Working voltage: 7~12 VDC
.Working current: <50 mA
.Working temperature -40 ° C ~ 65 ° C degrees Celsius
.Storage temperature -40 ° C ~ 65 ° C Celsius
.Size: 57*50*20 mm (Length X Width X Height)
Note: The low frequency signal is not an AC signal. Approximately 1OuF capacitance is measured in series with the input signal.
The low frequency signal is DC coupled. For AC coupling, measure the capacitor in series.
4, Interface description and related operations
P1 interface (power supply)
VDD: positive power supply (7~12V)
GND: negative power supply
P4 interface (TTL input signal)
FX: Low frequency input signal (1Hz ~ 10MHz); pulse accumulator input interface (maximum measurement frequency 500K).
GND: Negative power supply.
P3 interface (RF input signal)
RF: Measure the RF input signal. (10MHz ~ 7.3GHz)
GND: Negative power supply.
