S-Disk J Ultra Freeze is a temperature data logger from -80°C to 140°C (calibration from -40°C to 140°C) with 20 or 100 mm or on demand length external probe (probes cannot be switched) on a 13 mm cone base (base height is not counted for probe length), managed with Windows software and USB interface (DiskInterface HS, Multibay). Battery is user replaceable and the data logger is provided with an Accredia (NIST equivalent) traceable cetificate on 6 points.
The ultra low temperatures datalogger looks like the S-Disk J standard but it includes a calibration from -40°C. With calibration from -40°C it can be used also at -80°C with an accuracy within ± 0,5 °C within range -80 °C ÷ -40 °C. If -80°C is requested to be on the certificate, an extra calibration point for very low temperatures must be purchased. It is particularly indicated for monitoring and validation of ultra freezers.
The other versions of the data logger are:
Note: if used below -30°C, battery life will be highly reduced. Mission max duration at -80°C: 12 hours. Using the logger for long periods below -40°C will constantly reduce mission max duration. For longer missions purchase a S-MicroW series logger with -80°C special battery.
The system is made up by:
|Dimensions||29,5 h X 35 Ø (mm)|
|Probe dimensions||Probe base dimensions 5 h X 14 Ø (mm) - Probe 20/100 l X 3 Ø (mm) - - Probe l on demand X 3 Ø (mm) (l on demand: min. 10 mm / max. 175 mm. For longer probes ask for quotation)|
|Materials||Stainless steel AISI316L, PEEK|
|Temperature range||-80 °C ÷ +140 °C|
|Standard calibration points (temperature)||-40/-20/0/25/50/75/100/125/140°C|
|Extra calibration points (temperature)||Within the range -80 °C ÷ +140 °C|
|Temperature resolution||0,01 °C|
|Temperature accuracy||± 0,1 °C (within the calibration range)|
|Memory (n. of acquisitions)||54.528|
|Acquisition step||From 1 every second up, with 1 second steps|
|Battery life||+8.000.000 acquisitions at 1 second step continuously (calculated time @25°C. Battery life may be shorter if used in low temperatures)|
|Software&Mobile App||SPD, TS Manager|
|Accessories||DiskInterface HS, Multibay universale|