특징 (Features)

(GDM-451/356/350A)
* 4 1/2 Digits 19999 counts (GDM-451)
* 3 1/2 Digits 1999 counts (GDM-356/350A)
* Manual Ranging
* Continuity Beeper/Diode Test
* Data Hold
* Temperature Measurement
* Capacitance Frequency Measurement (Except GDM-350A)

(GDM-394/396/395)
* 3999 Counts Auto/Manual Ranging
* Slim Pocket Digital Multimeter (GDM-395)
* Capacitance Frequency Measurement
* Continuity Beeper/Diode Test
* High Energy Fuse for 10A Range (GDM-394/396)
* Data Hold/Relative Mode
* True RMS/RS232C (Only GDM-396)

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상세설명
(Description)

GW instek브랜드의 GDM-300/400시리즈 핸드헬드 멀티미터는 배터리 구동으로 사용이 가능하며
고정밀도를 자랑하는 서비스 엔지니어들이 많이 찾는 DMM입니다.
모든 핸드헬드 타입의 DMM의 사이즈는 작고 가벼워서 휴대하여 테스트 또는 측정을 할수 있는 특징을 갖고 있습니다.
벤치탑멀티미터 기능에 전현 손색이 없는GDM-300/400시리즈는 퓨즈보호 전류 입력정확한 AC측정을위한 실효치 측정
오토 레인징듀티사이틀relative모드등 기능이 기본적으로 들어가고 배터리 수명을 유지해주는 자동 전원off기능과 백라이트디스플레이
로터리 선택기누르는 버튼 및 야외사용을 위한 온도 측정등 다양한 조작키는 사용자에게 편의성을 제공하였습니다.
SELECTION GUIDE
Special Function
GDM-451
GDM-394
GDM-396
GDM-356
GDM-350A
GDM-395
Max. Display
19999
3999
3999
1999
1999
3999
Fused 10A Range
V
V
Auto Ranging
V
V
V
Diode
V
V
V
V
V
V
Continuity
V
V
V
V
V
V
Capacitance
V
V
V
V
V
Frequency
20k
10M
10M
20k
100k
Temperature
V
V
V
V
Duty Cycle(%)
V
V
V
True RMS
V
Relative mode
V
V
V
Data Hold
V
V
V
V
V
V
RS232C
V
Display Backlight
V
V
V
V
V
Auto Power Off
V
V
V
V

사양
(Specification)

DC VOLTAGE
Range200mV 2V 20V 200V 1000V(GDM-451/356);400mV 4V 40V 400V 1000V(GDM-394/396)
400mV 4V 40V 400V 600V (GDM-395);200mV 2V 20V 200V 500V (GDM-350A)
Best Accuracy±(0.05%rdg + 3digits) for GDM-451
±(0.8%rdg + 1digit) for GDM-394/396
±(0.5%rdg + 1digit) for GDM-356
±(0.7%rdg + 3digits) for GDM-395
±(0.5%rdg + 2digits) for GDM-350A
Input Impedance10MΩ
AC VOLTAGE (40Hz ~ 400Hz)
Range2V 20V 200V 750V (GDM-451/356) ; 4V 40V 400V 750V (GDM-394/396)
4V 40V 400V 600V (GDM-395) ; 200V 500V(GDM-350A)
Best Accuracy±(0.5%rdg + 10 digits) for GDM-451
±(1%rdg + 5 digits) for GDM-394/396
±(0.8%rdg + 3 digits) for GDM-356
±(2.3%rdg + 5 digits) for GDM-395
±(1.2%rdg + 10 digits) for GDM-350A
Input Impedance10MΩ (5M for GDM-350A )(2MΩ for GDM-451)
DC CURRENT
Range2mA 20mA 200mA 20A (GDM-451);400uA4mA40mA400mA4A10A(GDM-394/396)
200uA 2mA 20mA 200mA 10A (GDM-350A);20mA 200mA 20A (GDM-356)
Best Accuracy±(0.5%rdg + 5 digits) for GDM-451
±(1%rdg + 2 digits) for GDM-394/396/350A
±(0.8%rdg + 1 digit) for GDM-356
AC CURRENT (50Hz ~ 400Hz)
Range20mA 200mA 20A(GDM-451/356);400uA4mA40mA400mA4A10A(GDM-394/396)
Best Accuracy±(0.8%rdg + 10 digits) for GDM-451
±(1.5%rdg + 5 digits) for GDM-394/396
(1%rdg + 3 digits) for GDM-356
RESISTANCE
Range7 ranges200Ω ~ 200MΩ 7 ranges (GDM-451/356)
200Ω 2kΩ 20kΩ 200kΩ 20MΩ 5 ranges (GDM-350A)
400Ω ~ 40MΩ 6 ranges (GDM-394/395/396)
Best Accuracy±(0.3%rdg + 1 digit) for GDM-451
±(1%rdg + 2 digits) for GDM-394/396
±(2%rdg + 5 digits) for GDM-395
±(0.8%rdg + 1 digit) for GDM-356
±(0.8%rdg + 2 digits) for GDM-350A
CONTINUITY BEEPER
Buzzer sounds if conductance less than 70Ω
DIODE TEST
Open Circuit VoltageGDM-394/395/396 : 1.48V (Approx.)
GDM-356/451/350A : 2.85V (Approx.)
CAPACITANCE
Range2nF 20nF 2μF 20μF (GDM-451)
20nF 200nF 2μF 100μF (GDM-356)
40nF400nF4μF40μF100μF(GDM-394/395/396)
Best Accuracy±(3%rdg + 40 digits) for GDM-451
±(3%rdg + 5 digits) for GDM-394/396
±(5%rdg +10 digits) for GDM-395
±(4%rdg + 3 digits) for GDM-356
FREQUENCY
Range1Hz~20kHz (GDM-451/356)
10Hz ~ 10MHz (GDM-394/396)
1Hz~99.9kHz (GDM-395)
Best Accuracy±(1.5%rdg + 5 digits) for GDM-451/356
±(0.1%rdg + 3digits) for GDM-394/396
±(0.7%rdg + 3digits) for GDM-395
TEMPERATURE(℃)
Range-40℃~1000℃
Best Accuracy±1%+30 (GDM-451);
±1%+3 (GDM-396/356/350A)
SPECIAL FUNCTION
Duty cycle Auto Ranging (GDM-394/396) True RMS RS-232C (GDM-396)
LCD DISPLAY
4 1/2 digits (GDM-451) 3999 counts (GDM-394/395/396) 3 1/2 digits (GDM-356/350A )
POWER SOURCE
Single 9V battery (6F22) Cell Battery for GDM-395(CR2032)
DIMENSIONS & WEIGHT

85(W) x 177(H) x 40(D) mm Approx.330g (GDM-394/396)
80(W) x 165(H) x 38.3(D) mm Approx. 275g (GDM-451/356)
73.5(W) x 130(H) x 35(D) mm Approx. 156g (GDM-350A)
56(W) x 110(L) x 11.5(D) mm Approx. 97g (GDM-395)