Thermohygrometer calibration · Manufacturing

Thermohygrometer calibration for manufacturing

Paint and coating lines, laboratories, packaging areas and storage rooms across Perth manufacturing are held within humidity limits, and the thermohygrometer on the wall is the instrument of record. Its calibration certificate is what backs the environmental records at audit.

Thermohygrometers monitor the rooms where humidity matters — laboratories, storage areas, cleanrooms and paint shops. AmpTech calibrates handheld and wall-mounted thermohygrometers in our Caversham lab, checking both temperature and relative humidity against reference instruments traceable to national standards.

Interval in manufacturing

6–12 months

ISO 9001; environmental monitoring procedures

Setting the interval

Twelve months is standard. Humidity sensors drift faster than temperature sensors, so instruments monitoring controlled environments are often placed on 6 months.

What the calibration covers

Temperature reading against a reference thermometer at points across the range
Relative humidity reading against a reference hygrometer at points across the range
Stabilisation time and reading stability at each point
Sensor condition — contaminated humidity sensors read low and respond slowly

What your certificate records

The certificate format manufacturing procurement and audit teams ask for: the equipment under test, its serial number, the reference instruments used, as-found and as-left readings, environmental conditions and a traceability statement, plus the thermohygrometer-specific items below.

As-found and as-left temperature and humidity readings at each point
Reference instruments used, with traceability
Environmental conditions at the time of calibration

Standards & frameworks in manufacturing

ISO 9001 quality management system
ISO 10012 (referenced) — measurement management
AS/NZS 3760 for portable electrical equipment on plant
Customer-specific PPAP / quality requirements

How manufacturing clients get thermohygrometers to us

Calibration is performed in our Caversham lab — not on site. We collect from and deliver back to manufacturing workshops and offices across Perth, and instruments from regional sites come by freight or via your Perth base.

Canning Vale and Bibra Lake manufacturing precincts
Welshpool and Kewdale fabrication and assembly workshops
Malaga light industrial and trade workshops
Osborne Park commercial and QC laboratories

Working with manufacturing procurement

We work with quality and production teams to align calibration intervals with your control plan, supply certificates that map directly to your gauge register, and schedule recall reminders so nothing falls out of cal during a production run.

FAQ

Thermohygrometer calibration for manufacturing FAQs

Can we send the wall monitor and keep a spare in its place?

Yes — that is the usual approach. Many plants keep one spare calibrated unit and rotate it through so monitoring is never interrupted.

Which humidity points do you calibrate at?

Points across the range you specify, typically covering the low, middle and high humidities your environment sees. Tell us the range that matters and we will confirm it with your quote.

How long does a humidity calibration take compared with temperature?

Longer, because humidity sensors need time to stabilise at each point. We confirm the turnaround with your quote rather than guess.

Keep reading

Manufacturing

Manufacturing calibration in Perth

Perth manufacturers depend on accurate dimensional and temperature instruments to keep production within tolerance. AmpTech calibrates them against reference standards traceable to national standards and gives you the documentation a quality audit expects to see.

Learn more

12 months