This DMI "Hostile Environment" fiber optic signal conditioner was purchased for a specific DOE project that didn't end up requiring it. The system was stored without being put into service. All components are pristine and unused other than a some minor scuffs on the enclosure from storage and transportation.
Comes as shown with unopened power supply and data cable. Weather proof enclosure is 16" x 16" x 8".
Hassle Free Warranty
Manufacturer Description
The DMI is a multi-channel, universal fiber optic signal conditioner especially
designed for applications that require continuous monitoring of a large num-
ber of measuring points. Designed to work with all of FISO’s fiber optic sen-
sors, it is a general-purpose instrument ideally suited to perform multi-point
temperature, pressure, strain, displacement, and force and load measurements
in a myriad of industrial and R&D applications in hostile environments.
The DMI conditioner is designed to perform accurate multi-channel temperature,
pressure, strain, and displacement measurements. Thanks to its unique, patented
technology, the DMI conditioner is capable of measuring the absolute cavity
length of FISO’s Fabry-Perot fiber optic sensors with astonishing accuracy, provid-
ing highly accurate and reliable measurements. The DMI has a 0.01% full-scale
resolution and a 0.025% full-scale precision.
FISO’s fiber optic sensors offer complete immunity to RF and microwave radiation
with high temperature operating capability, intrinsic safety, and non-invasive use.
The sensors are also designed to withstand harsh and corrosive environments.
The DMI comes in a 16-channel or in a 32-channel version. All optical input chan-
nels are easily accessible through the unit’s front panel. The system scans all the
chan nels in use sequentially with a switching time of 0.15 seconds. It can also
read on a discrete channel at a 20 Hz sampling rate. Data is stored in the internal
memory buffer for later retrieval.
The DMI conditioner has a non-volatile memory buffer that can store up to 50 000
data points. Data logging sequences, duration, and other acquisition and data-
management parameters are easily programmable using remote control com-
mands or, even more easily, thanks to its accompanying software, FISOCommander.
Moreover, a Flash ROM allows firmware upgrades.
The DMI signal conditioner comes standard in a 19-inch rackmount that accommo-
dates from 16 or 32 channels. A NEMA-4 DMI version is optionally available
Specifications
Number of channels 16 or 32
Sampling rate 20 Hz
Switching time 150 ms
Averaging 1 to 500 samples
Precision 0.025% of full scale
Resolution 0.01% of full scale
Dynamic range 15 000 : 1
Data logging 50 000 data points
Analog outputs ±5 V software adjustable in scale and offset
Communication RS-232
Upgradeability Flash ROM fi rmware
Lamp life 1 40 000 hours of continuous use
Weight 4.8 kg (10.6 lb)
Dimensions (W × D × H) 448.8 × 326 × 132.5 mm (17.7 × 12.8 × 5.2 in)
Power requirements 10 to 20 Volts (5 Watts)
Operating temperature −20°C to 40°C (−4°F to 104°F)
