Parameter of Crystal Vibration Tester

Parameter of Crystal Vibration Tester

Main features
1 It's using reciprocal counting technique, high accuracy, wide measuring range, truly equal precision measurement, measurement speed, high sensitivity.
2 single-chip microprocessor technology cycle frequency measurement and intelligent management, making the instrument has high reliability and excellent performance / price ratio.
3 It's using LSI design, the use of CPLD devices, instrument components greatly reduced, reliability has been greatly improved, the average time between failures ≥10000h.
 The machine looks nice, small size, light weight, easy to use.

 Measuring range
Frequency Measurement: A Channel: 1Hz ~ 100MHz;
B channel: 100MHz ~ 1.6GHz (optional)
Period Measurement: A Channel: 10ns ~ 1s
 PPM measurement: -9999 ~ 9999ppm
 Upper and lower limit measure: according to the parameters set by the user limit FU, FL limit parameters to measure the measured frequency exceeds the lower limit, limit the alarm.
 Binning measurement: automatically binned measurements set by the user according to the center frequency F0. Binning value: Pr1 ~ Pr8 can be set between 1 ~ 999ppm
Sub-stall count: center frequency F0 is divided into 16 stalls around the midpoint
 Cumulative count: Counting Capacity: 0 ~ 109-1 (optional)
Counting mode: Keying, gated or optional external gating.

 Input characteristics
Input impedance: A Channel: 1MΩ // 40pF
B Channel: 50Ω
 Input Coupling: AC
 adaptive waveform: sine, pulse wave
 Input voltage dynamic range:
A Channel: 30mVrms ~ 250Vp ~ p
B channel: 30mVrms ~ 1Vrms
A low-pass filter channels: -3dB bandwidth of approximately 100kHz
A Channel Fader: × 1 or × 20

 Measurement error
The frequency or period measurement error: ± time base error ± trigger error ± LSD100ns
Where: LSD = _× measured frequency (or test cycle)

Gate time

Trigger error: When the measured signal to noise ratio of 40dB, the trigger error ≤0.3%
PPM measurement error: ± time base error ± trigger error ± LSD
Where: LSD = (100ns / gate time) × 106ppm
For example: When the gate time = 1s LSD = 0.1ppm
When the gate time = 0.1s LSD = 1ppm
counting error: ± 1

gate time
Fixed gate: 10ms, 100ms, 1s, 10s optional fourth gear;
Adjustable Gate: 50ms ~ 95ms in 10 files, each file interval 5ms.
3.5 Crystal Oscillator
Nominal frequency: 10MHz
Frequency stability: 5 × 10-6 / d
(According to user needs, matching the higher order of the crystal.
Such as: 1 × 10-6 / d, 5 × 10-7 / d, 1 × 10-7 / d, etc.).

FSB standard input
Input frequency: 10MHz
Input amplitude:> 1Vp ~ p sine wave

 Display
0.4-inch bright LED green, three units of LED lights (MHz, kHz, Hz), a gate LED indicator (GATE), a standard FSB LED indicator (EXT) and a PPM unit indicator ( PPM).

 Power
Voltage: AC 220V ± 10%
Frequency: 50Hz ± 5%
Power consumption: <8VA
Dimensions: 230 × 250 × 90 (mm)
Weight: <1.5kg

Crystal test kit (crystal measuring matcher) Optional:
1Hz-20MHz (comes with machine)
20MHz-40MHz (sold separately),
40MHz-65MHz (sold separately);
65MHz-100MHz (sold separately).