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Gas analyzer Vaisala OptimusTM OPT100 DGA for transformers - Vaisala
The Vaisala Optimus OPT100 DGA Gas Analyzer delivers high performance, zero false alarms and the best long-term measurement stability of any device on the market, with absolutely no maintenance.Data reliability
? Optical sensors are protected from contamination
? Vacuum gas extraction does not depend on oil temperature, pressure, etc.
? Unique automatic calibration eliminates long-term errors
? IR sensors, designed and manufactured in Vaisala's cleanroom facilities
? Spectral scanning for better gas selectivity
? Excellent signal-to-noise ratio means no averaging method
Robust design
? Sealed design withstands pressure and vacuum changes
? There are no consumables for replacement or maintenance
? IP66 rated and temperature controlled housing withstands harsh environments
? All components and pipes made of stainless steel and aluminum
? Magnetic gear pump and magnetic valves
Modern design
? A standalone monitor that can be installed in less than two hours
? Browser-based user interface, meaning no additional software required
? Continuous real-time monitoring allows for trend tracking, analysis and comparison, for example with load conditions
? Self-diagnosis ensures self-recovery after violations
What is different about the Vaisala Optimus DGA gas analyzer?
The Vaisala Optimus DGA OPT100 gas analyzer is the culmination of decades of research into customer needs and existing devices, as well as leveraging our 80 years of experience in manufacturing sensors and measurement equipment for safety-critical industries and harsh environmental conditions.
No more false alarms
The gas analyzer's IR sensor has been developed and optimized in Vaisala's clean environment. Vacuum gas sampling means no fluctuations in data due to temperature, pressure or oil type, and the sealed and protected optical system prevents sensor contamination. Final result? A gas analyzer that completely eliminates false alarms.
A device that works anywhere
Stainless steel tubing, IP66 temperature controlled housing, magnetic pump and valves provide superior performance and durability - from the arctic to the tropics. Also, there are no consumables for maintenance or replacement.
Smart features for seamless monitoring
The Vaisala Optimus DGA OPT100 gas analyzer has a browser-based interface that completely eliminates the need for additional software. The device can be installed in less than two hours. Just prepare the oil and connect the electricity, it is ready to go. In case of any troubles, such as a power outage, the self-diagnosis function allows the device to independently restore all necessary resources.
Measurement parameters
? Hydrogen H2
? Carbon monoxide CO
? Carbon dioxide CO2
? Methane CH4
? Ethan C2 H6
? Ethylene C2 H4
? Acetylene C2 H2
? Water H2O
Measured parameters in oil
| Parameter Range | Accuracy 2) Reproducibility 2) |
| Methane (CH4) 0 ... 10,000 ppmv | 10 ppm or 10% of 10 ppm or 5% of readings readings |
| Ethane (C2H6) 0 ... 10,000 ppmv | 10 ppm or 10% of 10 ppm or 5% of readings readings3) |
| Ethylene (C2H4) 0 ... 10,000 ppmv | 10 ppm or 10% of 10 ppm or 5% of readings readings |
| Acetylene (C2H2) 0 ... 5000 ppmv | 2 ppm or 10% of 1 ppm or 10% of readings readings |
| Carbon monoxide (CO) 0 ... 10,000 ppmv | 10 ppm or 10% of 10 ppm or 5% of readings readings |
| Carbon dioxide (CO2) 0 ... 10,000 ppmv | 10 ppm or 10% of 10 ppm or 5% of readings readings |
| Hydrogen (H2) 0 ... 5000 ppmv | 25 ppm or 20% of 15 ppm or 10% of readings readings |
| Moisture 4) (H2O) 0 ... 100 ppmw 5) | ±2 ppm6) or ±10% of included in the error readings |
1) The indicated error is the error of the sensors during calibration measurements of gas concentration. The error in measuring gas concentration in oil can also be affected by the properties of the oil and other chemical compounds dissolved in the oil.
2) Depending on which value is greater.
3) Reproducibility of ethane concentration measurements is based on averaging over five measurements.
4) Measured as relative saturation (%).
5) The upper range is limited by saturation.
6) Calculated concentration value (in ppm) is based on average solubility in mineral oils.
Measurement characteristics
| Measurement cycle time | 1 ... 1.5 h (typical) |
| Response time (T63) | One measurement cycle 1) |
Warm-up time before receiving the first measurement data | Two measurement cycles |
Initialization time to reach given error | Two days |
| Data storage | At least 10 years |
| Expected service life | > 15 years |
1) Three cycles for ethane and hydrogen.
Design parameters
Total dissolved flammable gases (TDCG) | Total amount of H2, CO, CH4, C2H6, C2H4 and C2H2 |
| Rate of change (ROC) | Available for single gases and TDCG in 24 hours, 7 days and 30 days periods |
Gas ratios* | Available ratios: •CH4/H2 • C2H2/C2H4 • C2H2/CH4 • C2H5/C2H2 • C2H4/C2H5 •CO2/CO |
*Calculated based on 24 hour averages. See IEC 60599 standard.
Working environment
| Transformer oil type | Mineral oil |
Required minimum ignition temperature 1) transformer oil | +125 °C (+257 °F) |
| Transformer oil inlet pressure | Maximum 2 barabs continuous Burst pressure 20 barabs |
| Transformer oil inlet temperature | Maximum +100 °C (+212 °F) |
| Ambient Humidity Range | 0 ... 100% relative humidity, with condensation |
| Ambient operating temperature range | -40 ... +55 °C (-40 ... +131 °F) |
| Storage temperature range | -40 ... +60 °C (-40 ... +140 °F) |
1) The ignition temperature [of transformer oil] is typically about 10 °C [18 °F] higher than the ignition temperature in a closed space. See, for example, Heathcote, Martin J. The J&P Transformer Book. 13th ed. Elsevier, 2007.
Power supply
| Operating voltage | 100 ... 240 V AC, 50 ... 60 Hz, ±10% |
Overvoltage category | III |
| Maximum current consumption | 10 A |
Maximum consumption power | 500 W |
Nominal consumption power at +25 °C (+77 °F) | 100 W |
Exits
RS-485 interface
Supported protocols | Modbus RTU (remote terminal) |
| Galvanic isolation | 2 kV (rms value), 1 min |
Ethernet interface
Supported protocols | DNP3 (protocol distributed networks), Modbus TCP, HTTP |
| Galvanic isolation | 4 kV AC (50 Hz, 1 min) |
Relay outputs
Number of relays | 3 pcs., normally open (NO) or normally closed (NZ), user selectable |
| Trigger type | Gas alarm with settings that user selects |
| Maximum switching current | 6 A (at 250 VAC) 2 A (at 24 VDC) 0.2 A (at 250 VDC) |
User interface
| Interface type | Web user interface Can work with standard web browsers |
Mechanical characteristics
Oil line connection | Swagelok® fitting from of stainless steel for pipe with external 10 mm (0.39 inch) in diameter. For 3/8" pipe use an adapter SS-600-R-10M. |
Maximum length oil line to transformer | Maximum 10 m (33 ft) for pipe with internal 7 mm (0.28 in) diameter Maximum 5 m (16 ft) for pipe with internal 4 mm (0.15 in) diameter |
| Material | Marine aluminum (EN AW-5754), stainless steel AISI 316 |
Type tests
| Category | Standard | Class/level | Trial |
Electromagnetic Compliance compatibility (EMC) | IEC61000-6-5 | Class 4 (interface type 4) | Resistance to power plant and substation equipment |
IEC61326-1 | Industrial | Electrical equipment for measurement, control and laboratory use - EMC requirements | |
| Environment | IEC60529 | IP66 (equivalent to NEMA 4 rating) | Intrusion protection |
| Safety | IEC/EN61010-1, 3rd ed. UL 61010-1:2012 CSA C22.2 No. 61010-1-12 | According to standard | Safety requirements for electrical equipment for measurement, control and laboratory use - Part 1: General requirements |
Certification
CE marking
EMC, Low Voltage, RoHS, WEEE Directives
Guarantee period 1 год
