Head Office:
Engineering:
Unit B, Cranmere Court
Unit 13 Langley Business Court
Okehampton Devon
Worlds End Newbury
EX20 1UE UK
RG20 8RY
Tel: +44(0) 1844339993 Fax: +44(0)1844339996
Email:
Web Site:
www.quantumcryogenics.com
ATEX-DCT150M-W-28.02.20-00003R5
2.
Thermowell or Thermal Pocket Mounting
The sensor can also be mounted in a Thermowell or Thermal Pocket a tube welded to the tank surface
and projecting in to the tank.) The internal diameter of the tube projecting in to the tank must be such
that the sensor housing slides in to it easily. In fitting the sensor housing in to the tube, thermal
contact can be made by use of a 'non-setting' silicone around the sensor housing and then (making
sure that there are no sharp edges to damage the sensor cable), by carefully clipping the sensor lead
to the tank surface.
FIXING OF THE CASE
The case dimensions of the DCT150M Digital Tank Thermometer are shown in Fig 3 below. The case is
designed to be 'flush fitted' in to a circular hole of diameter 4 inches (122 mm.) in the outer skin of the
tank and to be fixed in position by means of rivets or screws. Six fixing holes (Ø5 mm) are provided
around the fixing flange of the unit on a PCD of 135mm.
The thermometer flange should be sealed to the outer skin of the tank by means of a 'setting' silicone
sealant that is suitable for use in the environment of the hazardous zone.
Care must be taken when installing to ensure that the enclosure is sufficiently thermally insulated
from the surface of the tank so that its local ambient temperature remains between -35
°
C and 60
°
C.
The equipment must not be allowed to become immersed in dust during installation or ongoing
operation. Cleaning should only be undertaken with a damp cloth. No other solvents should be used.
WARNING
The flange of the thermometer is not curved. If the flange is to be fitted to
a curved surface, suitable spacers MUST be used to avoid excess stress
