Pressure Switch Calibration in Bangladesh
ION Engineering calibrates pressure switches used for alarm and trip functions in industrial systems, verifying the actual set-point and deadband against a traceable pressure reference, accredited to ISO/IEC 17025:2017.
What We Calibrate
High & Low Pressure Switches
Set-point verification for high- and low-pressure trip switches.
Differential Pressure Switches
Trip-point testing for differential pressure alarm switches.
Vacuum Switches
Set-point verification for vacuum trip switches.
How We Calibrate a Pressure Switch
The switch is subjected to a rising and falling pressure from a traceable reference source, with the actual trip (set) point and reset (deadband) point recorded as-found, before any adjustment, and as-left afterward — because a switch that trips late or early is a safety issue a simple continuity check will not catch.
What’s included
- Set-point and deadband verification, rising and falling
- As-found and as-left readings
- Stated measurement uncertainty
- QR-verifiable certificate
Pressure Switch Calibration FAQs
Why calibrate a switch instead of just testing continuity?
A continuity test only confirms the switch works electrically; it does not confirm the pressure at which it actually trips, which is the number your safety system relies on.
Can this be done on an installed switch?
Yes, where the line can be safely isolated and pressurised on-site; otherwise the switch is removed for bench-level testing.
What measurement uncertainty do you report?
Uncertainty is stated on your certificate; our full accredited scope is published on our calibration capabilities page.
Is the certificate independently verifiable?
Yes, every certificate number can be checked using our online verification tool, with no login required.