Signal conditioner
PowerSens
page 1
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For more information about Power Transformer temperature monitoring
MULTI-CHANNEL MULTI-PURPOSE SIGNAL CONDITIONER FOR FIELD APPLICATIONS USING GAAS-BASED FIBER OPTIC TEMPERATURE SENSORS
Use with Opsens’ SCBG fiber optic sensors —— • Temperature
• Up to 18 measurement channels
• High linearity and precision
• RS-232 and RS-485 serial output with SCPI and ModBus protocol
• Wall mount version with LCD screen display
• PLC optional control for data acquisition and extended control capabilities
• Relays and analog output available options
The PowerSens is a multi-channel signal conditioner that is used with any of Opsens’ SCBG (i.e. GaAs-based) fiber optic temperature sensors. At the heart of the PowerSens is the Opsens’ Semiconductor Band Gap (SCBG) technology which provides a mean for making accurate measurements of the temperature-dependent bandgap of GaAs crystal.
The PowerSens is equipped with LCD display* and it comes with RS-232 and RS-485 output ports for real-time data acquisition. Both SCPI and ModBus communication protocols are supported. SPDT-type relays and analog outputs are optionally available. PLC controller is also available in option which offers extended control capabilities through a wide range of input/outputs.
The PowerSens has a channel sampling rate of 50 Hz and channel scanning rate of up to 6.25 Hz. It is used with 200/230 microns optical fiber temperature sensors (see for example Opsens OTG-T sensor models) and a version is also available for 62.5/125 microns optical fiber sensor models. With a ±1.5 °C accuracy (total accuracy including both signal conditioner and sensor errors) and 0.1 °C resolution, the PowerSens delivers the performances needed for a wide range of critical measurement applications.
*Display not available for 15-channel model and above
• Power Transformer hot spot temperature monitoring
• Multi-point long-term monitoring
• In-situ process monitoring
• High voltage environments
• EMI, RFI and microwave environments
• Nuclear and hazardous environments
Signal conditioner
PowerSens
page 2
Number of channels |
3, 6, 9, 12, 15 and 18 |
Compatibility |
All Opsens SCBG fiber optic sensors (GaAs-based temperature sensors) with 200/230 microns optical fiber (62.5/125 microns optical fiber version available on demand) |
Accuracy |
± 1.5 °C (Total accuracy over the full range including both signal conditioner and sensor errors – higher accuracy available on demand) |
Resolution |
0.1 °C |
Sampling rate |
50 Hz standard (rate given for a fixed channel) |
Channel scanning rate |
6.25 Hz maximum (channel-to-channel scan period = 160 ms) |
Display |
LCD screen display standard (not available on 15-channel and 18-channel models |
Serial output interface |
RS-232 and RS-485 standard, SCPI and Modbus protocol supported |
Analog output |
±5 V or 4-20 mA output optionally available |
Relay |
C-Form SPDT relays, 4 A @ 240 VAC or 30 VDC optionally available |
Input power |
12 to 24 VDC (AC/DC wall-transformer adapter included) |
Consumption |
2.5 W typical |
Storage temperature |
-40 °C to 70 °C |
Operating temperature |
-40 °C to 60 °C (LCD display may not work at all temperature) |
Humidity |
95 % non condensing |
Light source life span |
150 000 hours ( > 17 years) MTBF |
Special enclosure |
Wall mount NEMA enclosure optionally available |
I/O and control option |
PLC controller unit with various I/O optionally available |
All specifications are subject to change without prior notification