OptoTemp 2000 — Fiber optic temperature sensor
Product description
The OptoTemp 2000 is a fiber-optic temperature measurement system developed by MicroMaterials Inc. (MMI), distributed in France by IDIL. Based on a proprietary phosphor technology (U.S. Pat. 9,599,518 B2), it measures temperature through fluorescence decay — a field-proven technique deployed in hundreds of industrial installations worldwide for over 25 years.
Designed for harsh chemical and electrical environments, the OptoTemp 2000 is completely immune to electromagnetic interference (EMI), RF radiation, microwave, and plasma. It can measure temperatures up to 1000°C, making it uniquely suited for applications where competing fiber optic thermometers cannot operate.
- Up to 4 simultaneous measurement channels
- Three probe models: FLEX, SUPER, ULTRA (up to 1000°C)
- Inert, passive probe — no electrical components at the measurement point
- RS-232 output, back lighted LCD display
Controller
| OptoTemp 2000 Controller | |
| Channels | Up to 4 |
| Response time | 250 ms |
| Sample rate | 4 samples/sec |
| Power requirement | 90-260 VAC, 50-60 Hz |
| Power consumption | 5 W @7.5 VDC |
| Output port | RS-232 |
| Display | Back ligthed LCD |
| Dimensions | 17 cm (L) x 7 cm (W) x 3 cm (H) |
| Housing | Anodized aluminum |
Probes
| OptoTemp 2000 Probes | FLEX | SUPER | ULTRA |
| Temperature range | 15°C to 230°C | 15°C to 400°C | 200°C to 950°C (Extended ULTRA 150°C to 1000°C) |
| Connector type | ST | ST | SMA |
| Diameter | 2 mm | 1 mm or 3 mm | 1 mm or 3 mm |
| Active probe length | 15 cm * | 15 cm * | 15 cm * |
| Protective sheath | PFA | Ceramic | Ceramic |
| Accuracy | ±0.5°C | ±1.0°C | ±2.0°C |
| Precision (average 8 samples) | ±0.5°C | ±0.5°C | ±1.0°C |
- Custom lengths available on request
HOW DOES THE OPTOTEMP 2000 WORK?
The OptoTemp 2000 relies on the fluorescence decay principle. A short light pulse is sent through the optical fiber to excite a phosphor crystal located at the probe tip. The crystal then emits fluorescent light whose decay time is a precise function of temperature. By measuring this decay time, the controller determines temperature with high accuracy — entirely without any electrical signal at the measurement point.
This approach makes the probe inherently passive and immune to all electromagnetic disturbances, including microwave fields, RF generators, and plasma environments where conventional thermocouples or electronic sensors would be affected.
- Completely immune to EMI, RF and microwave radiation
- Temperature range up to 1000°C (ULTRA Extended probe)
- Precise and reliable — fluorescence decay measurement principle
- 100% passive, inert probe
- Up to 4 simultaneous channels
- Compact and ruggedized anodized aluminum housing
- RS-232 serial output for easy integration
- CE certified
- Microwave and RF heating processes
- Chemical processing
- Molten metal measurements
- Plasma processing
- Semiconductor manufacturing
- High-voltage or high-EMI environments
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