Disintegration tester · Calibration procedure
Temperature
Checks the immersion fluid temperature against a calibrated thermometer.
PURPOSE
Why this is checked
Disintegration is faster in warm fluid; the test is only valid at the stated temperature.
Frequency
Typically every 3 to 6 months; the fluid temperature is also checked at each test.
Learn how the Disintegration tester worksYOU WILL NEED
Standards & tools
- Calibrated digital thermometer, 0.1 °C resolution
BEFORE YOU START
Prerequisites
- Beakers filled with water
- Bath stabilised at the set temperature
PROCEDURE
Step by step
- 1Set the controller to 37.0 °C and allow at least 20–30 minutes to stabilise.
- 2Place the calibrated probe in each beaker near the centre and record the reading and the displayed value.
- 3Repeat for each station.
RECORD
Example observation table
| Station | Set (°C) | Displayed (°C) | Observed (°C) | Difference (°C) |
|---|---|---|---|---|
| A | 37.0 | 37.0 | 37.2 | +0.2 |
| B | 37.0 | 37.0 | 36.8 | −0.2 |
CALCULATION
How to calculate the result
Difference = Observed − Set
- Station A: 37.2 − 37.0 = +0.2 °C (within ±2 °C)
ACCEPTANCE CRITERIA
Pass if
- Immersion fluid typically 37 ± 2 °C.
- Many SOPs also require the display to agree with the reference within a tighter tolerance, such as ±0.5 °C.
IF IT FAILS
What to do
- Check bath level and heater
- Adjust or replace the sensor
- Do not use until it passes
MORE
Other Disintegration tester 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.