Endress+Hauser Prothermo NMT81 - Installation Procedure

Installation Prothermo NMT81
24 Endress+Hauser
R
a
A0042789
 16 Installation and winding of a temperature probe
a 600 mm (23.62 in) or more
R 300 mm (11.81 in) or more
L
CAUTION
If bending the temperature probe with R smaller than 300 mm (11.81 in), it may
damage the probe and elements.
‣
Bend the probe 300 mm (11.81 in) or more.
5.9.3 Installation height adjustment
A unique feature of NMT81 is the optional ability to adjust height by approx.
±180 mm (7.09 in) from the original position.
The height adjustment feature is not available for the welded flange type and the
converter-only version.
5.10 Installation procedure
The length of the NMT81 probe is predetermined by the customer. Check the following
items before installing.
• Tag number on the device
• Length of the temperature probe
• Number of elements
• Element intervals
• The procedure for installing NMT81 will vary depending on the tank's shape and type. A
cone roof tank and a floating roof tank are used for the following examples. The
procedure to mount NMT81 flange on a tank nozzle flange is the same regardless of
what type of tank is being used.
• The recommended diameter of the installation nozzle is:
• Temperature only probe : 32A (1-1/4") or more
• With WB probe: 50A (2") or more