Descripción: Manual parea el control Steren RM-1200
Webserver s7 - 1200Full description
Biblija Latinski
PLCDescripción completa
service manualFull description
EJEMPLOS D MACROS VB6
Volkswagen Testing Plastic for Scratch Resistance Automotive Crosscut
Solution to Nozzle Interference problem in PV Elite
Description : Document related to PV System Desgn.
Klass.-Nr. 50 32 1
October 2004
Vehicle Parts
PV 1200
Testing of Resistance to Environmental Environment al Cycle Test Tes t (+80/-40) (+80/- 40) °C
. n r e v o g . l l e a t h a s r u c n o c i a s r e e b v o n t a d m e r v e e i l G e e b h t s i s e n i o c i t a n a l s p e n r a c r t s i h d s f i l o g n e E s a e c h n T I
Konzernnorm Descriptors: climatic chamber, environmental environmental cycle test, resistance to environmental cycle test
Changes The following changes have been made as compared to Test Specification PV 1200, 1987-02:
Title changed Class. no. 8B V0 1 removed Editorially revised
Previous issues 1972-10; 1987-02 1
Scope
This Test Specification describes an environmental cycle test (elevated temperature/low temperature cycle) for testing units, e.g. vehicle parts in the engine compartment. The behavior of the units and/or parts during environmental cycle stressing by means of cycling temperature and moisture shall be assessed here (e.g. susceptibility to cracks, deformation, separation of the composite material, etc.). The purpose of the test t est specifications speci fications (e.g. temperature tem perature -40 - 40 °C) is to uncover u ncover component compon ent weaknesses in a short-term test with accelerated time effect, not to define general component requirements for continuous operation. 2 Requirements For requirements, see the respective Technical Supply Specification and/or drawing. 3
Description
Example for a drawing entry: 100 cycles according to PV 1200 without restriction of function 4
Test method
4.1
Procedure
The temperature temper ature shall shal l be regulated regulat ed with a tolerance t olerance of ± 2 °C and the relative r elative air humidity (rel. (r el. humidity in the following) with a tolerance of ± 5%. The climatic climati c chamber shall be set to room temperature temperat ure (23 °C) and 30% rel. humidity humidi ty before the test specimen is inserted.
3 0 . 1 0 1 4 E F m r o F
The holding times must always be maintained. The heating and cooling phases can be varied according to the performance capability of the climatic chambers used. Deviations shall be specified in the test report. Page 1 of 2 Fachverantwortung/Responsibility Fachverantwortung/Res ponsibility K-GQ-32
. e g a s u o t r o i r p e u s s i t n e r r u c r o f d r a d n a t s k c e h C / n e f ü r p t ä t i l a u t k A f u a g n u d n e w n A r o v m r o N
Page 2 PV 1200: 2004-10
One cycle (see Figure 1) lasts for 720 min (12 h) and comprises the following temperature and humidity profiles: heating phase to +80 °C and 80% rel. humidity, 60 min
240 min
holding time
at +80 °C and 80% rel. humidity,
120 min
cooling phase
to -40 °C, when humidity, the air (depending on be suspended as
240 min
holding time
at -40 °C, air humidity remains uncontrolled,
60 min
heating phase
to +23 °C, rel. humidity is regulated to 30% as of T = 0°C
freezing point is reached: approx. 30% rel. humidity remains unregulated as of T < 0 °C the system, humidity regulation can also of T < 10 °C),
