Operation - SIKA 621 Notice D'utilisation

Operation

5 Operation
Safe and reliable operation is ensured with proper installation.
Stand straight in front of the thermometer installed at eye level to read it, not at an angle or
to the side. This will avoid reading errors.
The reading precision generally corresponds to the scale graduation.
Ambient temperatures:
The permitted ambient temperature indicates the limits within which the thermometer can
be used without the risk of damaging it.
The accuracy class of the indication is maintained within the nominal usage range.
Outside the nominal usage range additional temperature errors will occur.
• Permissible ambient temperature: -40...+60 °C
with case filling glycerine:
•
Nominal usage range:
Prevent personal injury and property damage:
Comply with all relevant regulations when setting up and operating measurement
points for materials which are dangerous, flammable, explosive or harmful to health.
The thermometers must not be used beyond the full scale value. Doing so can lead to
the destruction of the equipment.
Display correction:
Every Bi-Metal Dial Thermometer has the option to correct an indication error (4% of the
temperature range).
Types 621...681:
- There is an adjustment screw on the back side.
- Use a no. 6 hexagon Allen key to turn the dial carefully until the pointer is at the target val-
ue.
Correct indication errors only if you can check the accuracy by means of comparative meas-
urement. Instruments for comparison to use are calibrated glass thermometers or portable,
calibrated digital thermometers.
- 14 -
-20...+60 °C
23 ±5 °C
Bi-Metal Dial Thermometer
© SIKA • Ba_ZT-BiMe • 01/2015