ducer with Root Extracted Output Type P 82 R
ducer with Root Extracted Output Type P 82 R
ducer with Root Extracted Output Type P 82 R
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
8 What to do in the event of a fault<br />
description of fault possible cause cure<br />
no output signal<br />
• power supply not connected<br />
• connect the correct power<br />
supply<br />
output signal remains<br />
constant in spite of<br />
changing pressure<br />
faulty output signal<br />
zero point can no longer<br />
be adjusted <strong>with</strong> U0 / I0<br />
• incorrect power supply<br />
connected<br />
• fuse blown<br />
• defective input protection diode<br />
• defective output protection diodes<br />
• pressure connections crossed<br />
over<br />
• creeping suppression volume set<br />
too high<br />
• defective output protection diode<br />
• defective pressure measurement<br />
canister<br />
• <strong>with</strong> current output load to large<br />
• <strong>with</strong> voltage output load<br />
resistance to small<br />
• defective pressure measurement<br />
canister<br />
• connect the correct power supply<br />
(see rating label)<br />
• replace fuse SI (type TR5 200 mAT<br />
from the company Wickmann)<br />
• replace diode D12( type ZPY 33)<br />
• replace D8 / D9 (type ZPY18)<br />
• connect pressure in accordance<br />
<strong>with</strong> “3. Installation“<br />
• turn the trimmer SMU anti-clock<br />
wise until the output<br />
signal ≠ 0 V / 0/4 mA<br />
• replace D8 / D9 (type ZPY18)<br />
• return instrument for repair at<br />
factory<br />
• observe maximum load of 500 Ω<br />
• minimum load resistance of 5 kΩ<br />
• return instrument for repair at<br />
factory<br />
Table 2<br />
Never perform a functional test using exhalation as this can lead to<br />
permanent damage of the pressure measuring cell.<br />
Simple functional test of the trans<strong>ducer</strong>:<br />
Connect a hose to the pressure port for positive gauge pressure + . Taking the hose<br />
between thumb and fore finger, squeeze it and then carefully move the volume of air<br />
trapped <strong>with</strong>in the hose in the direction of the trans<strong>ducer</strong>.<br />
halstrup-walcher GmbH, 79199 Kirchzarten Operating instructions P <strong>82</strong> R Page 6 of 9
Change language