Monitoring
Continuous temperature and humidity monitoring, alarms and records.
Choosing monitoring locations from mapping results
Permanent sensors go where the mapping found the worst case — the hot spot, the cold spot, the slowest-recovering position — not where the cable reaches.
Alarm limits vs acceptance limits: setting them correctly
Acceptance limits come from the product; alarm limits sit inside them to give time to act, alert limits inside those. Uncertainty and delay set the gaps.
Monitoring ultra-low temperature (−80 °C) freezers
ULT freezers combine large gradients, slow recovery and severe consequences. You need the right probe, the right position and an alarm that wakes someone.
Humidity monitoring in storage areas: when and how
Monitor relative humidity where product, packaging or a label requires it. The sensors drift, and their uncertainty is larger than you get for temperature.
What a continuous temperature monitoring system must do
Capture at an appropriate interval, alarm reliably, store data securely with an audit trail, and keep working through power and network failures.
Reviewing and retaining monitoring records
A monitoring record nobody reviews is not a control. Define the review frequency, what the reviewer checks, how it is recorded, and how long it is kept.
Sensor response time and why it matters for monitoring
Response time sets how fast a sensor can see a change: seconds for a bare bead, many minutes in glycol or a metal block. Choose it deliberately.
Wireless vs wired monitoring sensors
Wireless sensors are easier to place and move; wired sensors are harder to lose and never run out of battery. Data integrity and coverage decide, not fashion.
Qualifying a temperature monitoring system
Installation checks, functional tests covering alarm and failure modes, and a performance period in routine use, plus the software validation underneath.
Temperature monitoring during transport
Every temperature-sensitive shipment carries a calibrated logger placed with the product. Review the record on receipt and close excursions before release.