Thyracont VSI17D, Operating Instructions Manual, Page: 47 / 52

47
VSI-de-170326
6 Maintenance and Service
Danger of possibly contaminated parts!
Contaminated parts can cause personal injuries. Inform your-
self regarding possible contamination before you start working.
Be sure to follow the relevant instructions and take care of nec-
essary protective measures.
The unit requires no maintenance. External dirt and soiling can be removed by a
damp cloth.
Should a defect or damage occur on your VSI, please send the instrument to us
for repair and enclose a decontamination declaration.
The unit is not prepared for customer repair!
Defective sensor heads can be exchanged on-site by calibrated
replacement sensors (spare parts B_VSM77, B_VSM78 or
B_VSM79).
Malfunction of the unit, which is caused by contamination or
wear and tear is not covered by warranty.
Error messages and malfunction
Problem Possible Cause Correction
high measurement error contamination, ageing, ex-
treme temperatures Replace sensor or
send unit for repair
output signal > 9,0V
/ "OR" via RS485
pressure over range
(pressure < > 2x10
-3
mbar)
0.5V < output signal < 1.0V
/ "000000" via RS485
pressure under range
(pressure < 5x10
-9
mbar)
output signal < 0.5V /
"ERROR1" via RS485
Status LED continuously
red defective electronics or
sensor
send unit for repair or
replace sensor
Access code "7" via RS485 Error message / warning see separate documenta-
tion Thyracont
Communication Protocol