Dial & Hot water Thermometers

Total immersion vs partial immersion

Immersion refers to the length that the thermometer is submerged into a liquid.
Checking a thermometer using an ice bath

When thermometers are used, many things can cause the accuracy of the device to change.
Dial thermometers – weatherproof thermometers

Specification and application   Materials used: The components used by Brannan to build this range of dial thermometers are manufactured from stainless steel.
Dial thermometers – types of dial thermometers

What is a dial thermometer?
Dial thermometers – thermowells

What is a thermowell?
Dial thermometers – test plugs

Self-sealing test plugs with screw connections and rubber self-sealing inserts are predominantly used on pipework installations allowing accessible tapping points for temperature instruments, with a maximum probe diameter of 4mm, when testing, maintaining, and commissioning HVAC installations.
Dial thermometers – liquid expansion

Liquid expansion – what does this mean & why is it used?
Dial thermometers – glycerine/oil filled

Why fill a thermometer?
Dial thermometers – clip on pipe thermometer

Clip on pipe thermometers are ideal instruments for measuring hot and chilled pipework, owing to them being low cost and easy to install.