MK (E3) 07/2009
page 57/70
Repair must only be performed by qualified service personnel authorized by BINDER.
Repaired units must comply with the BINDER quality standards.
18. Technical description
18.1 Factory calibration and adjustment
This unit was calibrated and adjusted in factory. Calibration and adjustment were performed using stan-
dardized 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 meas-
urement and test equipment that is also constituent part of the BINDER QM DIN EN ISO 9001systems.
They are controlled and calibrated to a DKD-Standard at regular intervals.
18.2 Over-current protection
As three-phase devices, the temperature test chambers MK 240 and MK 720 are equipped with an inter-
nal protection not accessible from outside. If these fuses have responded, please inform an electronic
engineer or BINDER service.
18.3 Definition of usable space
The usable volume illustrated below is calculated as follows:
b
c
c
b
a
a
C
B
A
A, B, C = internal dimensions (W, H, D)
a, b, c = wall separation
a = 0.1*A
b = 0.1*B
c = 0.1*C
V
USE
= (A - 2 * a) * (B - 2 * b) * (C - 2 * c)
Figure 13: Determination of the useable volume
The technical data refers to the so defined usable space.
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.
Summary of Contents for 9020-0146
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