WRITING THERMO-HYGROGRAPH
Instrument used to monitor and register the environmental temperature T (°C) and relative humidity (RH%).
The results are recorded weekly or daily on a special diagram paper fitted on a rotating cylinder.
Suitable for a variety of industries (in particular textiles), both production sites and warehouses, conditioned rooms (like laboratories) as well as for other meteorological usages.
Main features
- Model 180B uses a weekly diagram paper sheet. By using a simple gear-switch, it is possible to change from weekly to daily recording thus increasing the reading accuracy.
- A quartz 1,5V battery powers the cylinder rotating movement.
- Cylinder dimensions diameter 83 x 188 mm.
- For temperature reading, a special bi-metal “Bourdon” type foil is used to reduce the writing pen hysteresis.
- A bundle of specially prepared hairs is used for moisture reading.
- Temperature measuring range: from 0°C to +40°C (tolerance: ± 1.5%) ·
- Relative moisture measuring range: from 0% to 100% (tolerance: ± 3% from 0% to 40% and ± 5% from 40% to 100%).
- Unit built in stainless steel AISI 304.
- The instrument has limited dimensions and weight that makes it easy to move it from one place to another one.
Other types of instruments to measure ambient temperature T (°C) and relative humidity RH% are available from Mesdan:
- Thermo-anemometer, code 287C · Portable.
- Thermohygrometer, code 288C.
- Sling psycrometer, code 196B.
- “Assmann” psycrometer, code 196C.
DIMENSIONS / POWER SUPPLY
- Weight: 3,6 kg.
- Dimensions: (L) 140 x (W) 280 x (H) 280 mm.
- Power supply: 1,5 V battery.
