Digital Frequency Meter

Brand: Longwei / Equivalent

Model: TFC-1000L

Country of origin: China

Assemble/Manufacturer: China

 

Technical Specification

• TFC-1000L Multifunctional 1GHz Frequency Counter

Product Information

• Product Name: TFC-1000L
• Category: Uncategorized
• Tag: Frequency Counter

General Features

• Innovative Design: Sleek and lightweight for easy handling
• Cumulative Measurement: Supports cycle cumulative measurement for accurate data tracking
• Frequency Range: 10Hz to 1GHz
• High Sensitivity: 20 mVrms
• LED Display: Eight LED windows, characters 0 to 9 cycling display
• Self-Test Function
• Stability: ±3 × 10⁻⁹ seconds

Measurement Methods

Frequency Measurement Channel A

• 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

Frequency Measurement Channel B

• Nominal mode: TFC-1000L
• Range: 100MHz–1GHz
• Resolution: 100Hz, 1kHz, 10kHz
• Strobe time: 0.01s, 0.1s, 1s
• Accuracy: ±count value ± base time error × measured frequency

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

Accumulate Measurement

• Input: A channel
• Range: 10Hz–10MHz
• Accuracy: ±1 count impulse

Self-check

• Monitor: 0–9 characters of 8 digital pipe repeatedly show

Input Characteristics

Channel A

• Input sensitivity:
• (10MHz range): 10Hz–8MHz: 20mVrms & 8MHz–10MHz: 30mVrms
• (100MHz range): 10MHz–80MHz: 20mVrms & 80MHz–100MHz: 30mVrms
• Attenuation: ×1 ×20 fixed
• Wave filtering: low pass, 100kHz, −3dB
• Impedance: about 1MΩ (<35pF)
• safety voltage: 250V (DC + AC RMS)

 Channel B

• Input sensitivity: 20mVrms
• Impedance: about 50Ω
• 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, 0°C–40°C
• Line voltage: ±10% change, frequency variation ±1 × 10⁻⁷ correspond
• Power supply voltage: AC220 ±10%, 50Hz
• Start time: 20 minutes (<25°C)

Environmental Conditions

• Working temperature: −5°C–50°C
• Storage and transportation temperature: −40°C–60°C
• Working humidity: 10–90% RH
• Storage humidity: 5–95% RH

 Mechanical Characteristics

• Dimension: (230 × 200 × 75) mm
• Weight: 2kg

Standard Accessories

• 1 × Test probes
• 1 × User manual
• 1 × Carrying bag
• 1 × Battery

Warranty: One Year