TIERRA TECNICA

地球電磁気測定器メーカー

Geomagnetic Observation System【RFP-523F】
Fluxgate Magnetometer[Console]

GPSAntenna[Sensor][Sensor][Pre-amplifier]

Data Logger

Overhauser Magnetometer【SUMMARY】
The RFP-523F Geomagnetic Measuring System measures 3 component and total magnetic field on land. Three components
fields are measured by the fluxgate magnetometer and converted to digital value with 0.01nT resolution over the measuring
range of ±65500nT. Total fields are measured by the Overhauser magnetometer with 0.1nT resolution. 3 component fieldvalues (every second) and total field values (every minute) are store in a compact flush memory. This system has function ofnetwork with a LAN cable. Remote controls for the system and data gathering are possible using FTP and TELNET protocols.

【 FEATURE】□High Absolute Accuracy
The fluxgate magnetometer has 0.01nT resolution each components. The sensor set is suspended by a gimbal using thin plate , it keep a
vertical with 3 arc-sec accuracy. A different value between a calculated total field value which is measured by the fluxgate magnetometerand a true total field value which measured by Overhauser magnetometer , is less than 100nT. The Overhauser magnetometer has 0.3nT
accuracy with 0.1nT resolution.
□Automatic Set Up
The fluxgate magnetometer finds the compensation field automatically on "POWER ON". When a large magnetic field variation exceed
300nT is detected , it adjusts the compensation field in order to fit to the variation measuring range of ±300nT automatically.
□Network and Data Logging Function
The data logger has a network function(TCP/IP) and supports protocols of SSH, RSYSNC and etc. The saved data in the data logger aretransmitted by LAN network and remote controls for the system are possible. The data are saved in a compact flush memory in the datalogger also. When 1 Gbyte memory card is used , the data logger saves more than 1 year data.
□System clock by GPS
Time control for the system is performed by GPS. The total accuracy against an accurate time is less than 1 msec.
□Water Proof structure of Fluxgate Sensor
The fluxgate sensor has a water proof structure and it is possible to set it in the ground. A laying sensor is reduced a temperature
coefficient and a long term stability is kept less than 3nT per year.
□Battery Back Up
The data logger has a floating charger. When a battery is connected, the measuring is continued in a power failure.

TIERRA TECNICALtd.

3-25-1 Enoki MusashiMurayama shi
Tokyo JAPAN 206-0812
TEL: +81-42-516-9762 FAX: +81-42-516-9763

GEOMAGNETIC MEASURING SYSTEM

RFP-523F【 SPECIFICATIONS 】● Fluxgate Magnetometer【Sensor】[RFP-523F-FG]

RFP-523F-FGS・ Sensor typeRing core type fluxgate・ Components

3 components(XYZ)
with one temperature・ Orthogonality±0.1 degree

・ Gimbal stability

3 arc-sec

・ Cable length

5m+45m・ Operation temp.

-20 〜 50 ﾟ C・ Water proof

48 hours in 20cm depth・ Sizeφ180×123H・ Weight

4.8kg (include 5m cable)【 Circuit console 】

FRP-523F-FGC･Compensation field
Range±65,000nT

Accuracy<100nT

MethodAutomatic Setting (at power on)
Automatic tracking(±300nT Step at Scale Over)･Range forvariation field

300nT･Noise0.2nTp-p (1Hz sanpling)･Temperature stability

0.2nT/ﾟ C･Output rate

1 time/sec● DATA LOGGER◆ Data save·Record format·Making file·Media·Record period[RFP-523F-DL2]

50 byte binary/one measure
1 day file & 1 hour file
Compact flush memory card
1 year (in 1Gbyte card)(Max. 32Gbyte)◆ Network communication·Protocol
TCP/IP·Service
SSH , RSYNC , etc·Ether Connector
RJ-45·Serial communication RS232C(DSUB 9pin)◆ GPS clock･Maximum count･Accuracy･Antenna Size･Cable length±2μsec
φ71×127H
15m◆ Manipulation･Key board･Display

16 keys
8 lines X 30 column LCD◆ Power part・ Input voltage

AC100 〜 115V 50/60Hz

2099Y12M31D 23h59m59s･Filtering

16Hz sampling summing mean

･Resolution

0.01nT･Temp. measure range-20 〜 60 ℃

･Size

430W×133H×350D･Output voltage

DC13.6V (with temp. control)･Weight4kg-5 〜 50 ﾟ C･Output current･Suitable battery

Max. 2A
12V (20 〜 40AH)･Charge current･Back up term

Max. 0.2A
3 days (12V-40AH)

Size & weight
Operation temp.

450W×150H×330D 5.5kg
0 〜 50 ﾟ C･Operation temp.

● Overhauser Magnetometer [RFP-523F-OH]【 SENSOR 】(AC200 〜 220V available)

RFP-523F-OHS･Sensor type

Overhauser effect proton pecession･Cable length

1m+5m･Size & weight

190W×120H×105D 1.5kg(except connector)【 PRE-AMPLIFIER 】･Measuring range

RFP-523F-OHP
30000nT 〜 70000nT･Accuracy

0.3nT･Resolution

0.01nT･Measuring interval

1 second･Size & weight

225W×70H×250D 1.4kg･Data Cable50m● ACCESSORY
・ Connection Box
・ Fuse・ Sample program・ RS232C cable・ LAN cable・ Manual※ Specifications subject to change without notice.

TIERRA TECNICA Ltd.