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GDM-300/400 Series
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Features
(GDM-451/356/350B)
* 4 1/2 Digits 19999 counts (GDM-451)
* 3 1/2 Digits 1999 counts (GDM-356/350B)
* Manual Ranging
* Continuity Beeper/Diode Test
* Data Hold
* hFE Test (only GDM-350B)
* Temperature Measurement
* Capacitance, Frequency Measurement (Except GDM-350B)

(GDM-461/397/394/396/395)
* 22000 Counts Auto/Manual Ranging (GDM-461)
* 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-461/397/394/396)
* Data Hold/Relative Mode
* True RMS (GDM-461/396)
* RS232C (GDM-461/397/396)
CERS232PCSoftware
  • Description
  • Specification
  • Accessories
  • Ordering Information
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The GDM-300/400 Series Hand Held DMM are a compact, high precision, battery operated multimeter series designed to meet most of the daily needs for design engineers as well as service engineers. The GDM-300/400 series design is driven by mobile-oriented features, such as automatic power down to preserve battery life, a large backlight display for crisp viewing, a rotary selector switch and clear-cut push buttons to ease operation. The basic functions match the depth of bench-top multimeters: fuse-protected current input, true RMS for accurate AC measurements, Auto ranging, Duty cycle, and Relative mode. These compact, reliable, and economical devices are ideal for any engineer.

 

SELECTION GUIDE

MODEL

GDM-461

GDM-451

GDM-397

GDM-396

GDM-394

GDM-395

GDM-356

GDM-350B

Max. Display

22000

19999

4000

3999

3999

3999

1999

1999

Auto Ranging

 

 

 

Analog Bar

 

 

 

 

 

 

True RMS

 

 

 

 

 

 

Display Backlight

 

 

 

Fused 10A Range

 

 

 

Auto Power off

 

 

 

DC Voltage

1000V

1000V

1000V

1000V

1000V

600V

1000V

250V

AC Voltage

750V

750V

750V

750V

750V

600V

750V

250V

DC Current

10A

20A

10A

10A

10A

 

20A

10A

AC Current

10A

20A

10A

10A

10A

 

20A

 

Resistance

220MΩ

200MΩ

40MΩ

40MΩ

40MΩ

40MΩ

200MΩ

20MΩ

Capacitance

220mF

20µF

4000µF

100µF

100µF

100µF

100µF

 

Frequency

220MHz

20kHz

10MHz

10MHz

10MHz

99.9kHz

20kHz

 

Diode

Continuity

Temperature

 

 

 

Duty Cycle(%)

 

 

 

Transistor (hFE)

 

 

 

 

 

 

REL

 

 

 

Data Hold

Peak Hold

 

 

 

 

 

 

 

MAX MIN

 

 

 

 

 

 

 

RS232C

 

 

 

 

 

 

DC VOLTAGE

Range

220mV, 2.2V, 22V, 220V, 1000V(GDM-461); 200mV, 2V, 20V, 200V, 1000V(GDM-451/356)

40mV, 400mV, 4V, 40V, 400V, 1000V(GDM-397); 400mV, 4V, 40V, 400V, 1000V(GDM-394/396)

400mV, 4V, 40V, 400V, 600V(GDM-395); 200mV, 2000mV, 20V, 200V, 250V(GDM-350B)

Best Accuracy

±(0.1%rdg + 2 digits) for GDM-461; ±(0.05%rdg + 3 digits) for GDM-451

±(0.5%rdg + 1 digit) for GDM-397/356; ±(0.8%rdg + 1 digit) for GDM-394/396

±(0.7%rdg + 3 digits) for GDM-395; ±(0.5%rdg + 2 digits) for GDM-350B

Input Impedance

10 MΩ (3000MΩ for mV range of GDM-461/397)

AC VOLTAGE

Range

220mV, 2.2V, 22V, 220V, 750V(GDM-461); 2V, 20V, 200V, 750V(GDM-451/356)

40mV, 400mV, 4V, 40V, 400V, 750V(GDM-397); 4V, 40V, 400V, 750V(GDM-394/396)

4V, 40V, 400V, 600V(GDM-395); 200V, 250V(GDM-350B)

Best Accuracy

±(0.8%rdg + 10 digits) for GDM-461; ±(0.5%rdg + 10 digits) for GDM-451

±(1.0%rdg + 3 digits) for GDM-397; ±(1.0%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 + 3 digits) for GDM-350B

Input Impedance

10 MΩ (3000MΩ for mV range of GDM-461/397; 4.5MΩ for GDM-350B; 2MΩ for GDM-451)

DC CURRENT

Range

220µA, 2200µA, 22mA, 220mA, 10A(GDM-461); 2mA, 20mA, 200mA, 20A(GDM-451)

400µA, 4000µA, 40mA, 400mA, 4A,10A(GDM-397); 2000µA, 20mA, 200mA, 10A(GDM-350B)

400µA, 4mA, 40mA, 400mA, 4A,10A(GDM-394/396); 20mA, 200mA, 20A(GDM-356)

Best Accuracy

±(0.5%rdg + 10 digits) for GDM-461; ±(0.5%rdg + 5 digits) for GDM-451

±(1.0%rdg + 2 digits) for GDM-397/394/396/350B; ±(0.8%rdg + 1 digit) for GDM-356

AC CURRENT

Range

220µA, 2200µA, 22mA, 220mA, 10A(GDM-461); 20mA, 200mA, 20A(GDM-451/356)

400µA, 4000µA, 40mA, 400mA, 4A,10A(GDM-397)

400µA, 4mA, 40mA, 400mA, 4A,10A(GDM-394/396)

Best Accuracy

±(0.8%rdg + 10 digits) for GDM-461/451; ±(1.2%rdg + 5 digits) for GDM-397

±(1.5%rdg + 5 digits) for GDM-394/396; ±(1.0%rdg + 3 digits) for GDM-356

RESISTANCE

Range

220Ω ~ 220MΩ 7 ranges(GDM-461); 200Ω ~ 200MΩ 7 ranges(GDM-451/356)

400Ω ~ 40MΩ 6 ranges(GDM-394/395/396/397); 200Ω ~ 20MΩ 6 ranges(GDM-350B)

Best Accuracy

±(0.5%rdg + 10 digits) for GDM-461; ±(0.3%rdg + 1 digit) for GDM-451

±(1.0%rdg + 2 digits) for GDM-394/396/397; ±(2.0%rdg + 5 digits) for GDM-395

±(0.8%rdg + 1 digit) for GDM-356; ±(0.8%rdg + 5 digits) for GDM-350B

CONTINUITY BEEPER

Buzzer sounds if conductance less than 70Ω for GDM-451/394/395/396/356

Buzzer sounds if conductance less than 10Ω for GDM-461/397/350B

DIODE TEST

Open Circuit Voltage

GDM-461/451/397/356 : 2.8V(Approx.); GDM-394/395/396 : 1.48V(Approx.)

GDM-350B : 2.3V(Approx.)

CAPACITANCE

Range

22nF, 220nF, 2.2µF, 22µF, 220µF, 2.2mF, 22mF, 220mF(GDM-461)

40nF, 400nF, 4µF, 40µF, 400µF, 4000µF(GDM-397); 2nF, 20nF, 2µF, 20µF(GDM-451)

40nF, 400nF, 4µF, 40µF, 100µF(GDM-394/395/396); 20nF, 200nF, 2µF, 100µF(GDM-356)

Best Accuracy

±(3.0%rdg + 5 digits) for GDM-461/397/396/394; ±(3.0%rdg + 40 digits) for GDM-451

±(5.0%rdg + 10 digits) for GDM-395; ±(4.0%rdg + 3 digits) for GDM-356

FREQUENCY

Range

10Hz ~ 220MHz(GDM-461); 1Hz ~ 20kHz(GDM-451/356)

10Hz ~ 10MHz(GDM-394/396/397); 1Hz ~ 99.9kHz(GDM-395)

Best Accuracy

±(0.01%rdg + 5 digits) for GDM-461; ±(1.5%rdg + 5 digits) for GDM-451/356

±(0.1%rdg + 3 digits) for GDM-394/396; ±(0.1%rdg + 4 digits) for GDM-397

±(0.7%rdg + 3 digits) for GDM-395

TEMPERATURE

Range

-40ºC ~ 1000ºC

Best Accuracy

±(1.0%rdg + 30 digits) for GDM-451; ±(1.0%rdg + 7 digits) for GDM-396/356

±(1.2%rdg + 4 digits) for GDM-397; ±(1.0%rdg + 3 digits) for GDM-350B

SPECIAL FUNCTION

Auto Ranging(GDM-461/397/396/395/394); True RMS(GDM-461/396); RS-232C(GDM-461/397/396)

hFE Test(GDM-350B); Display Backlight(GDM-451/397/396/394/356); Analogue Bar(GDM-461/397)

LCD DISPLAY

22000 counts(GDM-461), 4 1/2 digits(GDM-451),

3 3/4 digits(GDM-397/396/395/394), 3 1/2 digits(GDM-356/350B)

POWER SOURCE

Single 9V Battery (6F22), Cell Battery for GDM-395 (CR2032)

DIMENSIONS & WEIGHT

87(W) x 180(H) x 47(D) mm, Approx. 370g (GDM-461/397)

85(W) x 177(H) x 40(D) mm, Approx. 330g (GDM-396/394)

80(W) x 165(H) x 38.3(D) mm, Approx. 275g (GDM-451/356)

72(W) x 137(H) x 35(D) mm, Approx. 200g (GDM-350B)

56(W) x 110(H) x 11.5(D) mm, Approx. 97g (GDM-395)

 

User manual x1, Test leads, Battery

 

GDM-461 22,000 counts Hand-Held DMM with True RMS Measurement and RS-232C interface
GDM-451 4 1/2 Digits Hand-Held DMM
GDM-397 3 3/4 Digits Hand-Held DMM with RS-232C Interface
GDM-396 3 3/4 Digits Hand-Held DMM with True RMS Measurement and RS-232C Interface
GDM-394 3 3/4 Digits Hand-Held DMM
GDM-395 3 3/4 Digits Slim-Pocket DMM
GDM-356 3 1/2 Digits Hand-Held DMM
GDM-350B 3 1/2 Digits Hand-Held DMM

Manual
Description
User Manual    704 K     GDM-350B User Manual (pdf)    en    M01   2012/4/23
User Manual    1251 K     GDM-461/397 User Manual (pdf)    en    M01   2012/4/23
User Manual    214 K     GDM-350A User Manual (pdf)    en       2009/9/11
User Manual    590 K     GDM-356 User Manual (pdf)    en       2009/9/11
User Manual    1799 K     GDM-394/396 User Manual (pdf)    en       2009/9/11
User Manual    645 K     GDM-395 User Manual (pdf)    en       2009/9/11
Programming Protocol    138 K     GDM-396 Protocol    en    V1   2010/08/30
User Manual    1441 K     GDM-451 User Manual (pdf)    en       2009/9/11


Sales Kit
Description
Datasheet    1614 K     Handheld DMM Product Information    en    VA   2013/06/27


Software
Description
PC Software    7008 K     Remote Software (RS-232) for GDM-396    en    V1.0   2009/9/11
PC Software    1658 K     Rmote software (RS-232) for GDM-397    en    V3   2013/6/27
PC Software    1637 K     Rmote software (RS-232) for GDM-461    en    V4   2013/6/27


 
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