Texio (Formerly Kenwood TMI) FL-140 - Kenwood Wow Flutter Meter
Overview
Features
Specifications
Calibration
Description
|
The FL-140 is a wow/flutter meter capable of measuring wow and flutter on a wide variety of recording and playback equipment such as cassette decks tape recorders VCRs and analog disk turntables. It is capable of easy measurements of wow and flutter in the range 0.003% to 3% without the need to adjust the input level and input frequency but simply by checking them on a monitor lamp. In addition shift in rotational speed can be simultaneously measured using a built-in drift meter. The meter indication can be selected to conform to CCIR DIN or JIS standards. In addition an output is provided for use in wow and flutter components analysis. |
Features:
- 0.03% Full-Scale to 3% Full-Scale Measurements
-The capability to measure wow & flutter in the range from 0.003% to 3% enables the FL-140 to measure not only abnormal rpm variations in cassette decks and headphone stereo sets, but measure wow variations in extremely low-level signals as well. - Selectable Meter Indication Method (rms/peak value)
-The meter indication method can be selected as peak value (CCIR/DIN standards) or rms value (JIS standards), enabling direct reading for these standards. - 3kHz/3.15kHz Measurement Center Frequency
-In addition to the 3kHz measurement center frequency conforming to CCIR/JIS standards, measurement is also possible at a center frequency of 3.15kHz, enabling measurements conforming to DIN standards. - Built-in Weighted Filter for Audition Compensation
-In addition to wow and flutter measurements with weighted characteristics (CCIR/DIN/JIS standards) and unweighted characteristics, the FL-140 can measure wow and flutter separately. - 3kHz/3.15kHz Reference Signal Output
-Highly stable crystal oscillator circuitry is built in to output 3kHz and 3.5kHz frequencies for use as the tape recording reference signal. This is convenient for record/reproduce testing. - Monitor Lamp for Checking Operation
-An operational monitoring lamp eliminates the need of input voltage and input frequency settings. - Monitor Outputs
-Oscilloscope and pen recorder outputs are provided for use in external monitoring of wow and flutter.
Specifications
| Wow/Flutter meter section | |
| Measurement center frequency | 3kHz ±300Hz (CCIR/JIS standards) 3.15kHz ±300Hz (DIN standard) |
| Input level range | 3mV to 30V |
| Input impedance | Approx. 300kΩ (unbalanced) |
| Wow/flutter measurement range | 0.03 to 3% full scale‚ 5ranges |
| Indication method | RMS (JIS) Peak value (CCIR/DIN) |
| Indication accuracy | ±5% of full scale |
| Frequency characteristics | |
| Weighted characteristics | In accordance with standards of CCIR/DIN/JIS (0.2 to 200Hz) |
| WOW characteristics | 0.5 to 6Hz (-3dB±1dB) (JIS) 0.3 to 6Hz (-3dB±1dB) (CCIR/DIN) |
| Flutter characteristics | 6 to 200Hz (-3dB±1dB) |
| Unweighted characteristics | 0.5 to 200Hz (-3dB±1dB) (JIS) 0.3 to 200Hz (-3dB±1dB) (CCIR/DIN) |
| Rolloff | Below 0.5Hz: -6dB/OCT min. (JIS) Above 200Hz: -15dB/OCT min. (JIS) Below 0.3Hz: -6dB/OCT min. (CCIR/DIN) Above 200Hz: -15dB/OCT min. (CCIR/DIN) |
| Maximum input voltage | 100V (DC ACpeak) |
| Input monitor | Level monitor lamp change from red to green at an input of 3mV. |
| Drift meter section | |
| Indication accuracy | ±5% of full scale |
| Drift measurement range | ±5% |
| Recording-signal output | |
| Signal frequencies | 3kHz and 3.15kHz |
| Accuracy | ±5×10-5 |
| Output voltage | Approx. 0.2Vrms (open circuit) |
| Output impedance | Approx. 600Ω (unbalanced) |
| Distortion | 1.0% max. (with 600Ω termination) |
| Oscilloscope output (TO SCOPE) | |
| Output voltage | Approx. 1Vrms at full scale |
| Output impedance | Approx. 600Ω (unbalanced) |
| Recorder output (RECORDER) | |
| Output voltage | Approx. 1V DC at full scale |
| Output impedance | Approx. 600Ω (unbalanced) |
| Power source | 100/120/220V AC ±10%‚ 216 to 250V AC‚ 50/60Hz‚ Approx. 8W |
| Case dimensions | 212 (W)×133 (H)×272 (D) mm |
| Maximum dimensions | 212 (W)×156 (H)×312 (D) mm |
| Weight | Approx. 3.8kg |
| Accessories | Instruction manual (1) Accessory cable (CA-36) (1) Power cord (1) |
Do you have a Kenwood Wow Flutter Meter that needs to be calibrated?
We offer standard traceable calibration and ISO 17025 accredited calibration services.
Get your Kenwood Wow Flutter Meter calibrated today! Click Here!
There are currently no reviews for this product.
