Installation In The Cover Of The Connection Head; Installation On The Top-Hat Rail; Installing / Removing The Optional Lcd Indicator; Disassembling The Lcd Indicator - ABB TTH300 Series Operating Instruction

TTH300 HEAD-MOUNT TEMPERATURE TRANSMITTER | OI/TTH300-EN REV. E

Installation in the cover of the connection head

Figure 12: Installation example
1. Release the screw plug
3
head.
2. Open the cover .
1
3. Secure the transmitter
2
cover, using the captive screws found in the transmitter.

Installation on the top-hat rail

Figure 13: Installation example
When mounted on a top-hat rail, the transmitter can be placed at
a distance from the sensor in a housing that is suitable for the
ambient conditions.
1
2
3
A10067
for the cover of the connection
at the proper position on the
Installing / removing the optional LCD
indicator
The transmitter can be optionally equipped with an LCD
indicator.
NOTICE
Damage to the LCD indicator caused by incorrect installation
/ disassembly
The flat ribbon cable of the LCD indicator can become
damaged due to incorrect installation / disassembly.
• Make sure the flat ribbon cable does not get twisted or
torn when installing / disassembling or rotating the LCD
indicator.

Disassembling the LCD indicator

The indicator must be removed to enable connection of the
sensor line or supply line:
Carefully remove the LCD indicator from the transmitter
inset. The LCD indicator is held firmly in place, meaning that
you may have to use the tip of a screwdriver to pry it loose.
Take care to avoid any mechanical damage.

Installing the LCD indicator

No tools are required to install the LCD indicator.
1. Carefully insert the guide pins for the LCD indicator in the
guide holes of the transmitter inset. Make sure the black
connection socket fits into the terminal on the transmitter
inset.
2. Then press the LCD indicator in as far as it will go. Make sure
that the guide pins and connection socket are fully inserted.
A10103

Rotating the LCD indicator

The position of the LCD indicator can be adjusted to suit the
mounting position of the transmitter, to ensure that the display
is as clearly legible as possible.
There are twelve positions at increments of 30°.
1. Carefully turn the LCD indicator to the left to release it from
its holder.
2. Carefully turn the LCD indicator until the required position is
reached.
3. Insert the LCD indicator into its holder again and turn it to
the right into the required position until it snaps into place.
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