Wika TR75 Manual do Utilizador descarregar pdf (Página 18)

11325232.04 01/2014 GB/D/F/E

18 WIKA operating instructions DiwiTherm

, model TR75

■

Mounting on tanks

The geometry of the contact bulb has been

designed for vessels with an external radius

up to 160 mm. If the mounting point of the

skin mounting contact bulb on the tank has

an external radius greater than 160 mm,

we recommend the use of an intermediate

piece designed for the respective tank

diameter, made of a material with good

thermal conductivity. The contact bulb can

be fastened to the tank by means of an angle

bracket with clamping screws, or any similar

method. The contact bulb should have direct

metallic contact with the measuring point

and have rm contact with the surface of the tank.

A heat conductive paste can be used to optimise the heat transmission between contact

bulb and vessel, if temperatures under 200 °C are expected. Insulation must be applied

at the mounting point to avoid error due to heat loss. This insulation must have sucient

temperature resistance and is not included in the scope of delivery.

When mounting a rotatable and inclinable DiwiTherm

thermometer, the specic

instructions must be followed. In order to set the indicator to the desired position, the

following steps must be taken:

1. The lock nut or union nut must be loosened at the process connection.

Angle bracket mounting

Lagging *

* Lagging mandatory!

2. The hexagon bolts and slotted screws at the swivel joint must be loosened.

loosening

Make sure to loosen the screws on

the opposite side as well!

Installation with

open-ended spanner

6. Commissioning, operation

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Wika TR75 Manual do Utilizador Página 18