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RIC at Tsukuba, Japan (Region II)
(Information on this page is based on a report from the RIC received in July 2013.
Please refer to the RIC's webpage for the latest information.)
 
General Information
Address: 1-2 Nagamine Tsukuba Ibaraki 305-0052, Japan
Website: http://www.jma.go.jp/jma/jma-eng/jma-center/ric/RIC_HP.html
Contact person: NAKASHIMA Kouichi
Title: Scientific Officer
Regional Instrument Centre Tsukuba
Observations Division, Observations Department
Japan Meteorological Agency
Email:kouichi.nakashima @ met.kishou.go.jp & ric-tsukuba @ met.kishou.go.jp
Tel: +81 298 51 4123
Fax:+81 298 51 1670
Calibration capabilities: Temperature, Pressure, Humidity, Wind
 
Specific Information on instrument calibration capabilities
Temperature measurement (thermometer)
Instrument Undergoing Calibration
Calibration Range
Reference standard, Equipment
Calibration and Measurement Capability (CMC)*
Traceability of Reference equipment
Last standard calibration date
Calibration body
Thermometer

-40~50 °C

Platinum resistance thermometer NSR-160 (Netsushin)
From -40 °C to less than 0 °C : 45 mK,
0 °C : 13 mK,
from more than 0 °C up to 50 °C : 36 mK
(Level of confidence approximately 95 %)
25 August 2012
Tanaka Kikinzoku Kogyo K.K. Isehara Works Thermometer Calibration Laboratory
Triple point of water cell 5901C-G (Hart Scientific, Inc.)
11 August 2011
Japan Electric Meters Inspection Corporation
Status of accreditation: date of latest accreditation - 30 August 2012
Link to the accreditation certificate
Accreditation body: National Institue of Technology and Evaluation (Japan)
 
Pressure measurement (barometer)
Instrument Undergoing Calibration
Calibration Range
Reference standard, Equipment
Calibration and Measurement Capability (CMC)*
Traceability of Reference equipment
Last standard calibration date
Calibration body
Digital pressure gauge

50~1150 hPa

        Pressure balance AV-02         (Futaba sokki)

The lager one of the two 0.0081% or 6.3 Pa         (Level of confidence approximately 95 %)
13 September 2012
National Metrology Institute of Japan
Status of accreditation: date of latest accreditation - 23 May 2013
Link to the accreditation certificate
Accreditation body: National Institue of Technology and Evaluation (Japan)
 
Humidity measurement (hygrometer)
Instrument Undergoing Calibration
Calibration Range
Reference standard, Equipment
Calibration and Measurement Capability (CMC)*
Traceability of Reference equipment
Last standard calibration date
Calibration body
Chilled mirror dew-point hygrometer

-5~25 °C

Chilled mirror dew-point hygrometer :
Sensor ; DewStar S-2S-0K     (Shinyei technology Co.,Ltd.),
Display ; DewStar S-1M-0      (Shinyei technology Co.,Ltd.)
From -5 to 0 °C: 0.11 °C
From 0 to 25 °C : 0.08 °C (Level of confidence approximately 95 %)
23 March 2013
National Metrology Institute of Japan
Electronic hygrometer
20~95 %
Calibration by comparison with a value calculated by chilled mirror dew-point hygrometer and thermometer
From 20 to 30 % : 0.6 %
From 30 to 95 % : 1.4 % (Level of confidence approximately 95 %)
Status of accreditation: unknown
 
Wind measurement (anemometer)
Instrument Undergoing Calibration
Calibration Range
Reference standard, Equipment
Calibration and Measurement Capability (CMC)*
Traceability of Reference equipment
Last standard calibration date
Calibration body
Anemometer

0.5~90 m/s

Ultrasonic anemometer
DA-700 (Sonic corporation)
N/A
16 April 2012
National Metrology Institute of Japan

Pitot tube F-202 (Tsukubarikaseiki Co., Ltd.),

Differential pressure gauge MT210  (2 sets)
(Yokogawa Electric Corporation)

24 November 2011
Status of accreditation: unknown

 

* A CMC (calibration and measurement capability) is the smallest uncertainty of measurement that can be expected to be achieved by the RIC during a calibration. This CMC is evaluated by the RIC itself and described in the scope of accreditation of the RIC, if available.

 

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