Tester per misuratore di frequenza di precisione digitale LED TFC-2700L Contatore di frequenza A/B Sensibilità del canale 20 mVrm Stabilità ± 3 * 10-9 s

Name: Multi-functional Frequency Meter

Model: TFC-2700L/1000L

Package Included:

Frequency Meter*1

Test Line*1

Manual*1

Features:

Novel style, lightweight.

Cycle cumulative measurement.

Both importations frequency ranges: 10Hz to 2.7GHz

Highest input sensitivity: 20mVrms.

8 high brightness LED display windows, 0 to 9 characters display

simultaneously in cycle a self-test function

Stability:±3*10-9s

Instructions:

1. Measurement methods

(1) Frequency measurement

A channel

Range: 10Hz-10MHz (Direct count)

      10MHz-100MHz (proportion count)

Direct count:1Hz ,10Hz,100Hz(your choice)

proportion count:10Hz ,100Hz,1000Hz(your choice)

Strobe time: 0.01s,0.1s,1s (your choice)

Accuracy: ±count value± base time error ×measured frequency

B channel

Range:100MHz-2.7GHz

Resolution:100Hz,1KHz,10KHz

Strobe time:0.01s,0.1s,1s

Strobe time:0.01s,0.1s,1s

Period measurement

Input: A channel

Range: 10Hz-10MHz

Resolution: 10-7s, 10 -8s, 10 -9s (your choice)

Accuracy: ±count value± base time error ×measured frequency

(3)accumulate measurement

Input: A channel

Range: 10Hz-10MHz

Accuracy: ±1 count impulse

Self-check

Monitor: 0-9 characters of 8 digital pipe repeatedly shows

2. Input characteristics

 (1)A channel

Input sensitivity: (10MHz) range: 10Hz-8MHz 20mVrms

                           8MHz-10MHz 30mVrms

                           (100MHz) range: 10MHz-8MHz 20mVrms

                           80MHz-100MHz 30mVrms

Attenuation: ×1, ×20 fixed

Wave filtering: low pass, 100KHz,-3dB

Impedance: about 1 MΩ (<35PF)

Max. Safety voltage: 250V (DC+AC rms)

(2)B channel

Input sensitivity: 20mVrms

Impedance: about 50 Ω

Max. Safety voltage: 3V

3. Time base

Time base frequency: 10MHz

Short-term stability: ±3×10-9/s

Long –term stability: ±2×10-5/s

Temperature Coefficient: ±1×10-5, 00C-400C

Line voltage: Each change ± 10%, the frequency variation ± 1 x 10-7 correspond

4. Power supply voltage: AC220± 10% 50Hz

5. Start time: 20 minutes (<250C)

6. Temperature: working temperature -50C-500C

Storage and transportation temperature:-400C-600C

7. Humidity:Working Humidity: 10-90% RH

Storage Humidity: 5-95% RH

8. Weight :2Kg

9. Size: 230*200*75 mm