Advantest Digital Multimeter R6341A - Year 1992 - Made in Japan (info page)

[Kiriakos GR]

Advantest Japanese brand, this is quite unknown worldwide, this company was not aiming regular consumers when it was at it Glory.

Advantest always trying to become B2B partner by developing technology which will adopted by other business them be engaged in electronics parts production and even R&D.
Digital Multimeter R6341A this is one of first Japanese handheld multimeter this released at 1992.

Japanese people still remember this tremendously overpriced product which become extremely fast EOL.
Product design it its extremely interesting , by having a quick look at it, you do think that this looks similar to FLUKE 87V face-plate.
First FLUKE 87 meter this released May 2004 Rev. 1 and therefore it is possible that FLUKE product design engineers to get some inspiration from this Advantest product.

Digital Multimeter R6341A this has rubber strips at both sides, this improves stability when it is used as handheld.
This is another product design detail also shared over the years between other Japanese brand (dmm makers).

DIGITAL MULTIMETER R6341A  4.1 / 2 digits
Manufacturer ADVANTEST

Product Introduction Measurement Function

DCV - Specification
Range resolution Input impedance Maximum allowable applied voltage
300.00 mV 10 μV 1000 MΩ or more 1100 V
3.0000 100 μV Approximately 11 MΩ 1100 V
30.000 V 1 mV About 10 MΩ 1100 V
300.00 V 10 mV About 11 MΩ 1100 V
1000.0 V 100 mV About 11 MΩ 1100 V

AC voltage TRUE RMS Specification
Range resolution Frequency input impedance Maximum allowable applied voltage
3.0000 V 100 μV 20 Hz to 20 KHz Approx. 11 MΩ AC 750 V rms
30.000 V 1 mV 20 Hz to 20 KHz Approximately 10 MΩ AC 750 V rms
300.00 V 10 mV 20 Hz to 5 KHz Approx. 10 MΩ AC 750 V rms
750.0 V 100 mV 20 Hz to 500 Hz About 10 MΩ AC 750 V rms

DC current DCA Specification
Range Resolution Internal Resistance Allowable Applied Current
300.00 mA 10 μA 3 Ω or less DC 0.5 A
10.000 A 1 mA 40 mΩ or less DC 11 A

AC current Specification
Range resolution Internal resistance Maximum allowable applied current
300.00 mA 10 μA 3 Ω or less AC 0.5 A rms
10.000 A 1 mA 40 mΩ or less AC 11 A rms

Resistance Specification
Range resolution Open circuit voltage Maximum allowable applied voltage
300.00 Ω 10 mΩ About 3.0 V DC 250 V AC 250 V rms
3.0000 KΩ 0.1 Ω Approx. 1.2 V DC 250 V AC 250 V rms
30.000 kΩ 1 Ω about 1.2 V DC 250 V AC 250 V rms
300.00 K 10 Ω Approx. 1.2 V DC 250 V AC 250 V rms
3000.0 KΩ 100 Ω Approx. 1.2 V DC 250 V AC 250 V rms
30.000 MΩ 1 kΩ about 1.2 V DC 250 V AC 250 V rms

Frequencies meter Specification
Range Resolution Maximum allowable applied voltage
999.99 Hz 0.01 Hz AC 750 V rms
9.9999 KHz 0.1 Hz AC 750 V rms
99.999 KHz 1 Hz AC 750 V rms
300.00 KHz 10 Hz AC 750 V rms

Temperature Specification
Range Resolution Maximum allowable applied voltage
-50.0 to -20.1 ° C 0.1 ° C DC 250 V AC 250 V rms
-20.0 to 350.0 ° C 0.1 ° C DC 250 V AC 250 V rms
350.1 to 500 ° C 0.1 ° C DC 250V AC 250V rms
500.1 to 1000.0 ° C 0.1 ° C DC 250 V AC 250 V rms

Diode test
Measurement range resolution open circuit voltage
0 to 2.999 V 1 mV About 3.0 V 3.1 / 2 display

Continuity test
Measurement range resolution Measurement accuracy
0 to 2.999 Ω 0.1 Ω 100 Ω +/- 50 Ω

Accuracy Specification
DCV  ± 0.07% ± 2 digit.
ACV  ± 0.5% ± 20 digit

Specification of Maximum Allowable applied voltage = Over-voltage Input protection for its one function and range. 
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At ITTSB Blog our main interest this is modern technology of our times, even so by keeping a record of the past,  we better understand how fresh they are all innovations that we see in our times.
Now enjoy few pictures of R6341A  (In case of Copyright issues please contact us by email ).     

[giorgos]

Did you bought that meter?
It looks like my old SOAR 3250, outdated regarding new safety standards, but still reliable and full functional.

[Kiriakos GR]

Did you bought that meter?
It looks like my old SOAR 3250, outdated regarding new safety standards, but still reliable and full functional.

No I did not buy anything, I was investigating the History of Advantest and their old partner ADCMT (Japan) and suddenly I found one white handheld multimeter with out detailed description.
After of hours of research in to Japanese web-pages, I did discover these few pictures.