Electrical Connection; Installing The Temperature Sensors; Temperature Resistance Table For Pt1000 Sensors - flamco meibes MeiTronic LFC Montage- Und Bedienungsanleitung

Electrical Connection

Before working on the unit, switch off the power supply and secure it against being switched on again! Check that there
is no power! Electrical connections may only be made by a specialist and must be in compliance with the applicable
regulations. The unit may not be put into operation, if there is visible damage to the housing, e.g. cracks.
The unit must not be accessible from the back.
Low-voltage cables such as temperature sensor cables must be routed separately from mains voltage cables. Feed
temperature sensor cables only into the left-hand side of the unit, and mains voltage cables only into the right-hand
side.
The customer must provide an all-pole disconnecting device, e.g. an emergency stop for the heating system.
The cables to be connected to the unit must not be stripped by more than 55 mm, and the cable jacket must reach into
the housing just to the other side of the strain relief.

Installing the Temperature Sensors

The controller operates with Pt1000 temperature sensors which are accurate to 1 °C, ensuring optimum control of system func-
tions.
If desired, the sensor cables may be extended to a maximum of 30 m using a cable with a cross-section of at least
0.75 mm². Ensure there is no contact resistance! Position the sensor precisely in the area to be measured! Only use
immersion, pipe-mounted or flat-mounted sensors suitable for the specific area of application with the appropriate
permissible temperature range.

Temperature Resistance Table for Pt1000 Sensors

°C -20 -10
Ω 922 961
0 10 20
1000 1039 1077
30 40 50
1116 1155 1194
60 70 80
1232 1270 1308
90 100
1347 1385
9