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SOFO VII MuST FBG Reading Unit

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COST EFFECTIVE FIBER OPTIC INTERROGATOR
READS BOTH SOFO AND FBG SENSORS

Reliable and versatile fiber optic datalogger for field applications. Robust and self-contained enclosure and integrated industrial PC.

Description

The SOFO VII reading unit is a universal reading unit able to measure both SOFO (Interferometric) and MuST FBG (Fiber Bragg Grating) sen-sors. The system is designed for static, long-term measurements. Each channel can be software configured for one of the two technologies. The SOFO VII is integrated in a compact steel housing designed for perma-nent installation in any structure that requires continuous monitoring. The SOFO VII reading unit allows to measure 4 or 8 channels. On each channel it is possible to connect up to 5 SOFO sensors (external 1×5 splitter needed) and up to 25 MuST FBG sensors (depending on sensor type, see sensor datasheets for details). The unit contains a field PC that provides data logging and remote interfacing functionalities.
The main features of SOFO VII are: flexibility in the choice of the options allowing the customer to configure a system tailored to his needs in terms of sensing technology, data logging capability, communication and temperature range.
The SOFO VII has been designed for surface installation and for specific project requirements. The housing (IP 66, housing and door: e-coat primer, powder painted, RAL 7032 pebble grey) grants protection from water, rodents, accidental crashes and a key lock grants protection against vandalism.

Specifications

Performances

 

SOFO Sensors Measurement

MuST FBG Sensor Measurement

Measurement resolution:

2 μm RMS

1 pm

Linearity / Accuracy:

< 2 ‰

±2 pm

Sample rate:

1 S/s (1Hz)

1 S/s (1Hz)

Measurement range:

Max. 50 mm

100 nm (1500 to 1600 nm)

Sensors per channel:

Max 5 SOFO Deformation sensors using optional 1×5 splitter

Max 7 MuST (FBG) Deformation sensors
Up to 12 Strain FBG sensors
Up to 25 Temperature FBG sensors

Calibration:

Not required

NIST traceable wavelength reference

Optical Connectors:

E-2000 APC (8°), patch cord or splitter required

E-2000 APC (8°)

Dynamic range:

N.A.

>50 dB

Measurement time:

< 2 s (incl. SDB writing) per channel

< 2 s (incl. SDB writing) per channel

Available channel count:

4 or 8* channels total, software configurable between SOFO and MuST FBG

 Specifications

AC power supply:

230 V 50 Hz / 110 V 60 Hz Auto detect

External connections:

Ethernet connection, display and screen (optional)

Data logger capacity:

Typical 5 year of data with measurements every 1h.

Dimensions:

~ 500 mm x 500 mm x 210 mm

Weight:

~ 25 kg

Operating temperature:

 10°C to + 40°C- 40°C to + 40°C with heating option

Humidity:

90% non-condensed

Ordering Info

10.2011 SOFO VII  MuST  Reading Unit

Options: 

  • 4 or 8 Channels
  • Number of 1×5 splitters
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