High Accuracy Digital High Speed Fo Meter 7117c

Features:
Fully Automatic Operation:
Measures Fo value without manual adjustments.
Displayed on the DISPLAY PANEL (14) in 1 to 1.5 seconds.
Advantages Over Voltmeter:
(a) Easy to read.
(b) No visual error.
(c) High accuracy.

Production Line Compatibility:
Suitable for high-speed judging on a production line.
Judging speed: 0.3 to 0.7 seconds.
Instant indication of "PASS / FAIL Test."

Technical Specifications:
Display: 3 A digits.

Accuracy: Fo readout error less than A (1% + 1Hz).

Measuring Range:
(a) 16Hz - 80Hz.
(b) 54Hz - 270Hz.
(c) 180Hz - 900Hz.
(d) 600Hz - 3KHz.
Fo Measuring Voltage:
1V r.m.s. A 10% (complies with EIA standard).
Impedance Testing:
Divided into two ranges:
(1) 3IC to 18IC.
(2) 19IC to 100IC.

Measuring Speed:
Fo Readout: 1 to 1.5 seconds.
"PASS / FAIL Test": 0.3 to 0.7 seconds.

Limit Setting:
Independent preset of upper & lower limits.
Range: 16Hz to 3KHz, no interference.

Limitation in Usage:
Cannot measure Fo value for air suspension loudspeakers.
Excludes air-tight frame speakers with low Q.o. values.