EMF520・521・522・523

02

Company ProﬁleCompany NameEMF Japan Co., Ltd.
Tokyo Oﬃce： EGG JAPAN,Shinmarunouchi Building

Oﬃce Location

5-1,Marunouchi 1-chome,Chiyoda-ku,Tokyo,100-6510
Headquarter：1-1-4 Nankadai Kawachinagano,Osaka,586-0077,JAPANTEL ／ FAX
E-mailFoundation
URL
Management

Phon: +81-721-64-0111 ／ FAX: +81-721-64-0112
info＠emf-japan.com
August 2008

EMF520・521・522・523

http://www.emf-japan.com
President： Akira Taniguchi

Sales： Jun Taniguchi

Development ： Yohei Ihara (Ph.D.)

ContactSingle Range 6.5 Digits
High Accuracy DosimeterIf you are interested in our business, please send a mail to;
Sales Director ： Jun Taniguchi
E-mail： jun.taniguchi@emf-japan.com

Access＜Tokyo Oﬃce＞＜Headquarter＞

MADE IN JAPANEGG JAPAN,Shinmarunouchi Building 5-1,

1-1-4 Nankadai Kawachinagano,Osaka,

Marunouchi 1-chome,Chiyoda-ku,Tokyo,

586 - 0077,JAPAN100-6510,JAPAN

Updated May 31, 2018

EMF Japan Co.,Ltd.

http://www.emf-japan.com
Phone：+81-721-64- 0111 FAX：+81-721-64- 0112

To kyo Offi ce： EGG JAPAN,Shinmarunouchi Building 5-1,Marunouchi 1-chome,Chiyoda-ku,Tokyo,100 -6510
Headquarters： 1-1-4 Nankadai,Kawachinagano,Osaka,586- 0077,JAPANEMF520・521・522・523

01

Speciﬁcation
EMF520Model

EMF521

EMF522

A/D converter
Measuring unit

EMF523

24bit

Electrical

Current : pA, Charge : nC

Current : nA, Charge : μC

Radioloigical

Dose rate : mGy / min, Dose : mGy

Dose rate : Gy / min, Dose : Gy

High resolution mode

Current

Standard resolution mode
Measuring range±2nA / F.S. single range±20nA / F.S. single range±200nA / F.S. single range±2μA / F.S. single range±0.0001pA〜±199.9999pA±0.001pA〜±1999.999pA±0.01pA〜±19999.99pA±0.0001nA〜±199.9999nA±200.000pA〜±1999.999pA±2000.00pA〜±19999.99pA±20000.0pA〜±199999.9pA±200.000nA〜±1999.999nA±0.001pA〜±1999.999pA±0.01pA〜±19999.99pA±0.1pA〜±199999.9pA±0.001nA〜±1999.999nA±2μC / Max±20μC / Max±200μC / Max±2mC / Max±0.00001nC〜±19.99999nC±0.0001nC〜±199.9999nC±20.0000nC〜±199.9999nC±200.000nC〜±1999.999nC±200.000nC〜±1999.999nC±2000.00nC〜±19999.99nC±2000.00nC〜±19999.99nC±20000.0nC〜±199999.9nC±0.00001nC〜±19.99999nC
High resolution mode

±20.0000nC〜±199.9999nC±200.000nC〜±1999.999nC

ChargeStandard resolution mode

±0.00001nC〜±19.99999μC±20.0000nC〜±199.9999μC±200.000nC〜±1999.999μC±0.00001nC〜±19.99999nC±0.0001nC〜±199.9999nC±0.001nC〜±1999.999nC±0.00001μC〜±19.99999μC±20.0000nC〜±199.9999nC±200.000nC〜±1999.999nC±2000.00nC〜±19999.99nC±20.0000μC〜±199.9999μC±200.000μC〜±1999.999μC±200.000nC〜±1999.999nC±2000.00nC〜±19999.99nC±20000.0nC〜±199999.9nC

JSMP Electrometer Guidelines

±2pA

±20pA

±200pA±2nA

IEC60731 Radiationtherapy ref. class±0.4pA±4pA±40pA±0.4nA

Lower limit of theIEC61674 Diagnostic radiology±0.1pA

±1pA

±10pA

±0.1nAmeasuring range

JSMP Electrometer Guidelines±0.1nC

±1nC

±10nC

±0.1μC

CurrentCharge（measuring time:50sec）

IEC60731 Radiationtherapy ref. class±0.02nC±0.2nC±2nC±0.02μC

IEC61674 Diagnostic radiology±0.005nC±0.05nC±0.5nC±0.005μC

Time constant of the I-V converter

0.1sec

ADC sampling rate

1000 samples / sec

Display refresh rate0.5sec

Averaging time for current

0.5sec, 1sec, 2sec, 4sec, 8sec selectable

Measuring time

0.5〜99999.5sec

Interval timeOﬀset current≦±0.001pA≦±0.01pA≦±0.1pA≦±0.001nA

Temperature drif t of the oﬀset current≦±0.0003pA / ℃≦±0.003pA / ℃≦±0.03pA / ℃≦±0.0003nA / ℃

Temperature drif t of the measuring current≦±0.0025％ / ℃（+1nA・15℃〜35℃ Average）≦±0.0025％ / ℃（+10nA・15℃〜35℃ Average）≦±0.0025％ / ℃（+100nA・15℃〜35℃ Average）≦±0.0025％ /℃（+1μA・15℃〜35℃ Average）

High resolution mode

Accuracy（IEC60731）

Display

100000〜999999sec

1〜999999sec≦±（0.25％+20digit）

Standard resolution mode≦±（0.25％+2digit）

Repeatability≦±0.01％（±0.1nA〜±2nA）≦±0.01％（±1nA〜±20nA）≦±0.01％（±10nA〜±200nA）≦±0.01％（±0.1μA〜±2μA）

Non-linearity≦±0.1%（±2pA〜±2nA)≦±0.1％（±20pA〜±20nA）≦±0.1％（±200pA〜±200nA）≦±0.1％（±2nA〜±2μA）

Long term stability≦±0.1％ / year

Zeroing

automatically in selectable 50sec or 200sec
7-digit green 7-segment LEDTop（pA or mGy/min）Middle（nC or mGy）

7-digit green 7-segment LED

Bottom（sec）

6-digit green 7-segment LED

High voltage

0〜±1000V, adjastabule in 1V steps

Max. deviation of high voltage≦±1％（±50V〜±1000V）

Terminal for ion chamber
Baudrate
RS232C interface

Triax BNC（2 lug）
19200bps（8bit, no parity）

Handshake

None

Terminal

D-sub 9pin male2 relays equipped（Relay A and Relay B）

Trip relay

setting value in mGy unit
Relay A : 100％ of setting value
Relay B : 50％ of setting value
Relay contact spec.:AC125V 0.6A or DC110V 0.6A

Rated range of use

Temperature+10〜+40℃

Rel. humidity

10〜80％, no condensation

Atomspheric pressure
Dimensions（W×D×H）

600〜1200hPa
260mm×230mm×100mm

Weight2.8kg

Power supply

AC100〜240V（-12％〜+10％）, 50〜60Hz

Power consumption

6VA