Ultra-Low Temperature Dry Bath (-100°C)
Indeecon's liquid-free sub-zero dry block calibrator delivers -100°C precision without fluids—essential for sterile biotech and pharmaceutical cleanrooms. NABL accredited.
Key Specifications
- Temperature range: Ambient to -100°C
- Liquid-free operation
- Cleanroom compatible
- UK/Singapore Biotech focus
- High stability at ultra-low temps
Key Features
- Liquid-free operation eliminates contamination risks in sterile environments
- Temperature range: Ambient to -100°C with ±0.05°C stability
- Ultra-low temperature uniformity (±0.05°C) for precise sensor calibration
- Rapid stabilization at cryogenic setpoints reduces calibration cycle time
- Interchangeable dry wells accommodate thermocouples, RTDs, and digital probes
- Compact benchtop form factor fits ISO Class 8 cleanroom workbenches
- NABL-accredited calibration certificates ensure regulatory compliance
- Stainless steel construction resists corrosion from cleanroom sanitization agents
- Low power consumption suitable for portable cleanroom cart deployment
- Built-in data logging interface for automated compliance documentation
Applications
- Biotech and Pharmaceutical Cleanrooms: Validation of temperature monitoring equipment in sterile manufacturing suites
- Semiconductor Manufacturing: Ultra-low temperature sensor calibration for cryogenic wafer storage and handling
- Laboratory Research: Precision calibration of environmental monitoring sensors in -80°C freezers and ultra-low freezers
- Vaccine and Biologics Storage: Verification of refrigeration and freezer sensors in cold-chain distribution centers
- Materials Science: Cryogenic sample temperature measurement and thermal analysis instrumentation verification
- Quality Control: On-site calibration validation for temperature data loggers deployed in biotech supply chains
Compliance Standards
- ISO 17025:2017 compliant calibration procedures
- ISO 14644-1 cleanroom compatibility (materials and design)
- IEC 61010-1 electrical safety for laboratory instruments
Safety Features
- Over-temperature protection
- Sensor burnout protection
- Electrical safety systems
Optional Features
- Custom inserts
- NABL traceable certificate
- Data logging software
How It Works
- Set target temperature to -100°C
- Allow dry block to reach low temperature
- Insert sensor into the dry well
- Verify reading against display
- Record calibration data
Datasheets & Resources
- Temperature Range
- Stability
Frequently Asked Questions
Why can't I use a liquid-based dry bath in our cleanroom?
ISO 7 and ISO 8 cleanrooms restrict organic solvents and mineral oils to prevent particle contamination and product cross-contamination. Liquid coolants off-gas and can migrate onto clean surfaces, compromising product purity. Indeecon's liquid-free design maintains cleanroom integrity while delivering equivalent cryogenic performance.
What temperature stability should I expect at -100°C?
Indeecon's sub-zero dry block maintains ±0.05°C stability at -100°C—equivalent to liquid-based systems but without the contamination risk. Calibration uncertainty is typically ±0.1°C (k=2) when NABL-accredited.
How long does it take to cool from ambient to -100°C?
Initial cool-down from 25°C to -100°C takes approximately 45–60 minutes depending on ambient conditions. Once stabilized, temperature setpoint changes stabilize within 15–20 minutes, making routine multi-point calibrations efficient.
Can I use this for non-cleanroom environments?
Yes. While optimized for cleanrooms, the liquid-free design works anywhere. The ultra-stable, compact form factor makes it ideal for field calibration, laboratory benches, and any setting where liquid coolant handling is inconvenient or unsafe.
What probes and sensors does it accommodate?
The interchangeable dry well system accepts 4 mm, 6 mm, and custom bore sizes to fit thermocouples (T, J, K, R, S), 2-wire and 4-wire RTDs (Pt100, Pt1000), and thermistor probes. Contact Indeecon for other sensor geometries.
Related Guides
Continue your evaluation with the most relevant master pages, comparison guides, and technical resources for this product family.
- Calibration Equipment Guide — Dry block calibrators and liquid baths — equipment families, temperature ranges, and selection factors.
- Temperature Calibration Guide — Traceability, uncertainty, and temperature calibration fundamentals.
- Calibration Selection Guide — Select equipment by range, stability, and application constraints.
- Dry Block vs Liquid Bath — Compare portability, accuracy, immersion, and temperature coverage.