Idex Trebor REV6, Руководство по эксплуатации и техническому обслуживанию

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REV6 OPERATION / MAINTENANCE MANUAL 21 CONTENTS
𝑇𝑇
𝑀𝑀
(
𝑇𝑇
𝐹𝐹
, 𝑇𝑇
𝐴𝐴
)
≈ 𝑇𝑇
𝑀𝑀
(
𝑇𝑇
𝐹𝐹
= 25℃ , 𝑇𝑇
𝐴𝐴
= 25℃
)
�����������������
𝑠𝑠𝑠𝑠𝑠𝑠 Figure 15
+ ( 𝑇𝑇
𝐹𝐹
− 25℃
)
∙ 𝑡𝑡𝑡𝑡
𝐿𝐿𝑀𝑀
�
𝑠𝑠𝑠𝑠𝑠𝑠 Figure 18
∙
(
𝑇𝑇
𝐴𝐴
− 25℃
)
SPACE
𝑇𝑇
𝑀𝑀
= 𝑀𝑀𝑀𝑀𝑡𝑡𝑀𝑀𝑀𝑀 𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑀𝑀𝑇𝑇𝑡𝑡𝑇𝑇𝑀𝑀𝑇𝑇 𝑇𝑇
𝐹𝐹
= 𝐹𝐹𝐹𝐹𝑇𝑇𝐹𝐹𝐹𝐹 𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑀𝑀𝑇𝑇𝑡𝑡𝑇𝑇𝑀𝑀𝑇𝑇
𝑇𝑇
𝐴𝐴
= 𝐴𝐴𝑇𝑇𝐴𝐴𝐹𝐹𝑇𝑇𝐴𝐴𝑡𝑡 𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑀𝑀𝑇𝑇𝑡𝑡𝑇𝑇𝑀𝑀𝑇𝑇 𝑡𝑡𝑡𝑡
𝐿𝐿𝑀𝑀
= 𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑇𝑀𝑀𝑇𝑇𝑡𝑡𝑇𝑇𝑀𝑀𝑇𝑇 𝐺𝐺𝑀𝑀𝑇𝑇𝐹𝐹𝐹𝐹𝑇𝑇𝐴𝐴𝑡𝑡 𝐿𝐿𝐹𝐹𝐿𝐿𝑇𝑇𝐹𝐹𝐹𝐹 / 𝑀𝑀𝑀𝑀𝑡𝑡𝑀𝑀𝑀𝑀
Equation 1
In order to account for thermal variations (like ambient temperature, closed chemical cabinets or
corners without ventilations) and to not significantly reduce the MTBF of the motor it is recommended to
keep about 20°C safety margin to the absolute thermal limit of the motor (90°C) when designing the
thermal concept of the pump system.
3.4.2 Controller Temperature
Depending on the ambient temperature and the placement of the controller, additional cooling may be
required (see Figure 20). To improve cooling of the controller, place the device into a moving air
stream. If the controller is mounted in a compact area or adjacent to additional heat sources (e.g. a 2
nd
controller), ensure that there is sufficient ventilation.
Figure 20 - Temperature Curves of Controller vs. Flow and Speed
The above curves are measurements of the controller temperature at 25°C ambient. Equation 2 shows
how to calculate the controller temperature for other ambient temperatures based on this curve.
𝑻𝑻
𝑪𝑪
( 𝑻𝑻
𝑨𝑨
) ≈ 𝑻𝑻
𝑪𝑪
( 𝑻𝑻
𝑨𝑨
= 𝟐𝟐𝟐𝟐℃ )
���������
𝑺𝑺𝑺𝑺𝑺𝑺 Figure 19
+ ( 𝑻𝑻
𝑨𝑨
− 𝟐𝟐𝟐𝟐℃ )
𝑻𝑻
𝑪𝑪
= 𝑪𝑪𝑪𝑪𝑪𝑪𝑪𝑪𝑪𝑪𝑪𝑪𝑪𝑪𝑪𝑪𝑺𝑺𝑪𝑪 𝑪𝑪𝑺𝑺𝒕𝒕𝒕𝒕𝑺𝑺𝑪𝑪𝒕𝒕𝑪𝑪𝒕𝒕𝑪𝑪𝑺𝑺
𝑻𝑻
𝑨𝑨
= 𝑨𝑨𝒕𝒕𝑨𝑨𝑨𝑨𝑺𝑺𝑪𝑪𝑪𝑪 𝑻𝑻𝑺𝑺𝒕𝒕𝒕𝒕𝑺𝑺𝑪𝑪𝒕𝒕𝑪𝑪𝒕𝒕𝑪𝑪𝑺𝑺
Equation 2