Binder FED 53 Instrukcja Użytkownika Pobierz pdf (Strona 45)

FED (E2) 02/2015 page 45/55

12. Technical description

12.1 Factory calibration and adjustment

This unit was calibrated and adjusted in the factory. Calibration and adjustment were performed using

standardized test instructions, according to the QM DIN EN ISO 9001 system applied by BINDER

(certified since December 1996 by TÜV CERT). All test equipment used is subject to the administration of

measurement and test equipment that is also constituent part of the BINDER QM DIN EN ISO 9001

systems. They are controlled and calibrated to a DKD-Standard at regular intervals.

12.2 Definition of usable volume

The usable volume illustrated below is calculated as follows:

A, B, C = Internal dimensions (W, H, D)

a, b, c = Wall clearances

a = 0.1 x A

b = 0.1x B

c = 0.1 x C

USE

= (A - 2a) x (B - 2b) x (C - 2c)

Figure 10: Determination of the useable volume

The technical data refers to the defined usable volume.

Do NOT place samples outside this usable volume.

Do NOT load this volume by more than half to enable sufficient airflow inside the chamber.

Do NOT divide the usable volume into separate parts with large area samples.

Do NOT place samples too close to each other in order to permit circulation between them and

thus obtain a homogenous distribution of temperature.

12.3 Over current protection

Single-phase devices are protected by a miniature fuse against over current, accessible from the

outside. The miniature fuse is located at the rear of the chamber below the strain relief of the power cord.

The fuse holder is equipped with a fuse clip 5 mm x 20 mm (cUL-Version 6.3 mm x 32 mm). The fuse

may be replaced only with a substitute of the same ratings. Refer to the technical data of the respective

device type.

Three-phase devices are equipped with internal fuses not accessible from outside. If these fuses are

blown, please inform an electronic engineer or BINDER Service.

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Binder FED 53 Instrukcja Użytkownika Strona 45