Fig. 41 Heating thermometers

with 90° angle measuring stem

Suitable for all-purpose applications in the heating and boiler systems sector for reading ranges from -30°C to +200°C
The measuring insert consisting of a glass capillary tube is protected by a cylindric brass surround to ensure break resistance
Every temperature change changes the volume of the wetting expansion fluid - inorganic (red), mercury (yellow) - and thus the position of the indicating filament in the capillary
Non-toxic thermometric fluid for scale ranges from -30°C to +200°C.
Large scale lettering and graduation lines with good readability in durable ink, protected in the vitreous body of the capillary tube
90° angled measuring stem
Thermowell included in standard scope of delivery

Measuring principle: Expansion of thermometric, wetting fluids in a capillary
Sensing element: up to 200°C; glass capillary with inorganic fluid, dyed in red
Nominal size Connection position Type standard scale division
NS 160 90° angled, towards the back EN 16170 2°C
NS 260 90° angled, towards the back EN 16178 1°C
Reading ranges: -10/+50°C; -30/+50°C; 0/100°C; 0/200°C; 0/130°C; 0/150°C
Measurement accuracy: +/- 1.5% of end scale value
Housing: Brass surround with screw cap, polished
Device protection type: IP68 acc. to EN 60529 / IEC 529
Limits of use:
- max. operating pressure: 6 bar