Temperature data-logger X2534

low-temperaturepressurehumidity

Description
The X2534 ValProbe surface temperature logger (Kaye) provides precision wireless measurement for freeze dryer shelf and surface temperature monitoring across an extended range from -85°C to 140°C. The embedded platinum RTD and compact surface design deliver high measurement accuracy, stability and fast thermal response while minimizing power consumption to extend battery life in very low-temperature environments. The logger is compatible with the ValProbe family of loggers, readers and Kaye software, allowing easy on-site verification against traditional IRTD and CTR-80 low-temperature bath and consistent reporting using the Kaye Report Wizard. The ValProbe system supports FDA 21 CFR Part 11 electronic records/signatures, complies with DIN ISO 17665 for saturated steam sterilization and is intended to support GMP requirements.

Features

• Integrated compact design with embedded platinum RTD
• Wireless sensing optimized for fast thermal response and surface performance
• Self-adhering thermal contact pad ensuring continuous conductivity during vacuum cycles
• Operating temperature range: -85°C to 140°C for complete logger
• Low-power design for extended battery life at extreme cold
• Fully compatible with ValProbe loggers, readers and Kaye software

Applications

• Freeze dryers (shelf and surface monitoring)
• Cryogenic vessels
• Freezers and cold storage
• Incubators and environmental chambers
• Pharmaceutical warehouses
• Sterilizers and sterilization validation
• General surface temperature measurement in regulated environments

Technical specifications

• Sensing element: Precision platinum RTD
• Measurement range & accuracy: 0° to 140°C ±0.1°C; -85° to 0°C ±0.25°C
• Environmental: Temperature -85° to 140°C; Humidity 0% to 100% condensing; Pressure 0 to 10 bar absolute (0 to 130 psia)
• Logger material: 316L stainless steel
• Logger dimensions: Height 2.28 in x 1.41 in diameter (58 mm x 36 mm)
• Sensing area dimension: 1.34 in (34 mm) diameter
• Battery: Field-replaceable 3.6 V lithium thionyl chloride; 1600 hours at 1 s sample rate at 20°C / 180 hours at 1 s at -85°C
• Sampling rate: 1 second to 12 hours
• Data storage: 10,000 samples retained in non-volatile EEPROM
• Calibration: Factory calibrated (NVLAP LAB CODE 200913-0 accredited) with user calibration option
• Real-time clock accuracy: 15 seconds per 24 hours (0.0174%)
• Regulatory compliance: UL and CE
• Thermal contact pad: Die-cut thermal pad with inherent tack to logger