VD (E3.1) 03/2020 page 142/173
Maximum load capacity of the switching contacts: 42 V AC/DC - 2A
DANGER
Electrical hazard due to exceeding the load capacity of the switching contacts.
Damage to switching contacts and connection socket. Deadly electric shock.
∅ Do NOT exceed the maximum switching load of 42 AC/DC – 2Amp.
∅ Do NOT connect any devices with a higher load capacity.
Insulate the inside connections against each other and against ground. Use 300 °C /
572 °F solder.
22.4 Object temperature display with flexible Pt 100 temperature sensor (option)
The object temperature display permits recording the object temperature directly on or in the drying
material. This enables the determination of the actual temperature of the charging material during the
whole process. The object temperature is measured via a flexible Pt100 sensor inside the inner chamber
and can be viewed on the controller display. The sensor needs to be in thermally conducting contact with
the charging material. It can be plunged into humid charging material up to the length of its protecting
tube.
22.4.1 Connection of the object temperature sensor
• Insert the Pt 100 temperature sensor from the rear through the measuring connection (12) into the
inner chamber.
• The 3 contacts of the Pt 100 sensor are conducted outside via a measuring access port. From there,
establish the connection to the 9-poles SUB-D socket “Object temperature input” (9) in the VD rear
control panel. Connect the supplied cable to the measuring access port and into SUB-D-socket (9).
Figure 21: Measuring connection (12) with
measuring access port
Figure 22: Sub D socket (9) “Object temperature input”
in the VD rear control panel to connect the optional Pt
100 sensor
Technical data of the Pt 100 sensor:
• Three-wire technique
• Class B (DIN EN 60751)
• Temperature range up to 320 °C / 608 °F
• Stainless steel protective tube, length 45 mm / 1.77 in, stainless steel material no. 1.4501
To Next Page
Loading...
