Q METER

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HIGH RELIABILITY INSTRUMENTS
Q
METER
MODEL:MQ−1601
〈 Description 〉
The MQ-1601 is designed for measurements of the figure of merit, Q, of
inductors and capacitors. Effective values of inductance, capacitance,
resistance, distributed capacitance, and high frequency cables can be
determined.
The overall frequency range is from 15.5kHz to 50MHz settable with use of a
6-digit counter display.
〈 Features 〉
1. Residual inductance is less than 10nH, an advantage in high Q
measurements and for higher accuracy.
2. Highly stable Q voltmeter circuit used for accurate measurements of low Q
values.
3. Pushbuttons used for frequency and Q ranging.
4. 6-digit counter for accurate frequency setting.
5. ⊿Q (delta Q) function provided for measuring small changes in Q; the
scale expansion is ×10.
6. Convenient Q LIMIT setting with lamp indication for quick sampling,
checking and inspection.
7. Correlation adjuster enables correlating results with other Q meters.
8. Meter range indication with LEDs prevents misoperation.
9. Q measurements possible at 15.75kHz.
10. With use of a special test jig (option), characteristics of dielectrics can be
determined.
HIGH RELIABILITY INSTRUMENTS
MODEL : MQ−1601
〈 Specifications 〉
Optional Accessories
15.5kHz to 50MHz in 7 bands:
1) Auxiliary Coils ML-2600AB
15.5 to 50kHz, 50 to 160kHz,
160 to 500kHz, 500 to 1600kHz,
● Test, or auxiliary, coils are sold in one set and not
1.6 to 5MHz, 5 to 16MHz,
separately.
16 to 50MHz.
● Test Coils, 16 total.
Frequency Counter
6-digit, or 5-digit with final figure
blanked.
Distributed
Frequency
Model
Inductance Capacitance, pF
Frequency Accuracy ±(0.01%+1 count).
Range
(Typical)
Q Measurement
5 to 750 in 7 ranges:
ML-2601A
25mH
12
50∼ 140kHz
5 to 25, 10 to 40, 15 to 75, 25 to 120,
ML-2602A
10mH
9
80∼ 200kHz
50 to 250, 100 to 400, 150 to 750.
ML-2603A
5mH
8.5
110∼ 300kHz
Q Accuracy
±10% f.s. below 20MHz.
ML-2604A
2.5mH
8
150∼ 450kHz
±20% f.s. above 20MHz.
ML-2605A
1.0mH
8
250∼ 700kHz
⊿Q Range
0 to 7.5 (in Q=15 to 75 range).
ML-2606A
500μH
8
350∼1000kHz
0 to 12 (in Q=25 to 120 range).
ML-2607A
250μH
7.5
500∼1400kHz
0 to 25 (in Q=50 to 250 range).
ML-2608A
100μH
7.5
800∼2000kHz
0 to 40 (in Q=100 to 400 range).
ML-2609A
50μH
7
1.1∼ 3MHz
0 to 75 (in Q=100 to 750 range).
ML-2610A
25μH
1.5∼ 4.5MHz
7
Tuning Capacitance 19 to 480pF, overall.
2.5∼ 7MHz
ML-2611A
10μH
7
Main: 22 to 480pF (1pF divisions
ML-2612A
5μH
3.5∼ 10MHz
7
to 100pF and 5pF divisions above
ML-2613A
2.5μH
5.0∼ 14MHz
6.5
100pF).
ML-2614A
1.0μH
8.0∼ 20MHz
6
Vernier:−3 to+3pF
ML-2615A
0.5μH
10.5∼ 31MHz
5
(minimum division=0.1pF).
ML-2616A
0.25μH
15.0∼ 50MHz
4
Accuracy: ±(1%+1pF)
Inductance Measurement
0.1μH to 1H in 7 ranges at specified
frequencies.
Accuracy: ±5% above 0.5μH.
±10% below 0.5μH.
Measuring Voltage
7.5Vrms at Q=750: (Q×0.01)Vrms
2) Dielectric Test Jig ME-2500
Electrode Diameter 38mm
for 25/75/250/750 ranges and
Electrode Spacing
10mm, maximum
(Q×0.00625)Vrms
Micrometer Pitch
0.5mm
for 40/120/400 ranges.
Smallest Reading
0.01mm increment
Q Meter Range Voltage
Residual Inductance Less than 0.03μH
Over±10% for correlation.
Dielectric Constant Range ε= 1 to 100
Power Requirements AC 100V, 115V, 215V or 230V±10%
Loss-angle Range
tanδ= 2×10−4 to 2
(voltage selector provided,
50/60Hz; approx. 20VA)
3) Test Jig for Series Measurements ME-2501
Dimensions, Overall Approx. 430(W)×220(H)×300(D)mm
Weight
Approx. 10kg
Frequency Range
※ Specifications are subject to change without notice.
MEGURO ELECTRONICS CORPORATION
4−11−1,MINAMIKASE,SAIWAI-KU,KAWASAKI,KANAGAWA 212-0055, JAPAN
TEL : +81-44 (589) 0805
FAX : +81-44 (589) 0825
URL: http: //www.meguro.co.jp/
E-mail : mec@meguro.co.jp
(20050214)
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