BINDER MK 115 - Manual (Page 95)

MKF + MKFT (E3.1) 07/2014 page 95/114
20. Technical description
20.1 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 (certi-
fied 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
9001systems. They are controlled and calibrated to a DKD-Standard at regular intervals.
20.2 Over current protection
Alternating climate chambers MKF / MKFT are equipped with an internal protection not accessible from
outside. If these fuses have responded, please contact an electronic engineer or BINDER service.
20.3 Definition of usable volume
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 24: 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 and humidity.