Overview
Many contamination test protocols typically require a working temperature range between -20°C and +80°C. The TQCM offers an easy way to cover this range without the need for liquid or gas cooling loops inside your vacuum chamber.
The TQCM uses a solid state thermoelectric device (heat pump) in the sensor to control temperature with a ΔT of ±70°C. By mounting the sensor heat sink to a thermally conductive bracket inside your vacuum chamber, waste heat can be dissipated to outside ambient air through the chamber wall without the need for a cooling loop.
To achieve the minimum low end temperature range of -59°C, active cooling is needed to provide adequate heat sinking for waste heat dissipation.
The TQCM Assembly consists of three main components: the 56S/T Sensor, 46E/T Electronics, and 106CA Heat Sink. These parts may be purchased separately as spare or replacement parts.
Specifications
| Temperature range | -59°C – 100°C |
| Temperature control | Thermoelectric cooling and heating (±70°C range) |
| Temperature measurement uncertainty | ±0.5°C |
| Mass sensitivity | 1.96 × 10-9 g/cm2 Hz |
| Crystal frequency | 15, 16, or 16.8 MHz |
| Frequency measurement uncertainty | ±1 Hz |
| Mass | 0.51 lb (230 g) |
| Sensor field of view angle | 140° |
| Sensor aperture diameter | 0.250” |