Moisture analyser · Calibration procedure
Heating temperature calibration
Uses the manufacturer's temperature calibration kit, placed where the sample sits, to check and adjust the heating temperature.
PURPOSE
Why this is checked
The result of a moisture analyser test depends strongly on the drying temperature. The kit measures the actual temperature at the pan position.
YOU WILL NEED
Standards & tools
- Calibrated temperature kit (sensor disc with a certificate) supplied for the instrument
BEFORE YOU START
Prerequisites
- Instrument cold before starting
- Kit certificate in date
PROCEDURE
Step by step
- 1Remove the pan and fit the temperature kit in the pan holder.
- 2Start the calibration routine; the instrument heats to the first point (for example 100 °C).
- 3Enter or let the instrument read the kit temperature after the set hold time.
- 4Repeat at the second point (for example 160 °C).
- 5Allow the instrument to adjust if needed, then repeat as a check.
RECORD
Example observation table
| Set point (°C) | Kit reading (°C) | Difference (°C) |
|---|---|---|
| 100 | 101.2 | +1.2 |
| 160 | 158.6 | −1.4 |
CALCULATION
How to calculate the result
Difference = Kit reading − Set point
- At 160 °C: 158.6 − 160 = −1.4 °C
ACCEPTANCE CRITERIA
Pass if
- Within ±3 °C (a commonly used manufacturer limit; check your SOP).
IF IT FAILS
What to do
- Label the instrument 'Out of calibration' and stop using it.
- Investigate the cause and arrange adjustment or repair.
- Assess the impact on results generated since the last passing calibration.
- Repeat the full calibration before returning it to use.
MORE
Other Moisture analyser calibrations
In LimsPulse · Calibration Management
LimsPulse schedules this calibration, records the result against limits, and blocks the instrument everywhere if it fails or goes overdue.