Binder BF 720 User Manual

Loading ...

BD / BF / ED / FD / FED (E3.1) 03/2019 page 32/106

7. Overtemperature protection

7.1 Overtemperature protective device (class 1)

The chambers are regularly equipped with an overtemperature protective device (safety device class 1

acc. to DIN 12880:2007). It serves to protect the chamber, its environment and the contents against ex-

ceeding the maximum permissible temperature. When a defined temperature is reached, which is approx.

by 20 °C to 30 °C above the chamber’s nominal temperature, the overtemperature protective device turns

off the heating.

Cut-off temperature values:

BD, BF: 120 °C

ED 260: 320 °C

ED 56, ED 115, FD 56, FED 56: 330 °C

FD 115, FD 260, FED 115, FED 260: 350 °C

The message “Overtemperature” is displayed on the controller.

If the overtemperature protective device class 1 has turned off the heating, proceed as follows:

• Disconnect the chamber from the power supply for at least 10 seconds (pull the power plug).

• If appropriate, have an expert examine and rectify the cause of the fault.

• Let the chamber cool down

• Restart the chamber.

As soon as the inner chamber temperature after restart is below the defined cut-off temperature of the

overtemperature protective device class 1, the alarm message is deleted automatically.

Reset temperature values:

BD, BF: 90 °C

ED 260: 220 °C

ED 56, ED 115, FD 56, FED 56: 230 °C

FD 115, FD 260, FED 115, FED 260: 250 °C

Loading ...

Binder BF 720 Standard Incubator