Thyracont VSH87PN, Operating Instructions Manual

Page: 42 / 48

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6 Maintenance and Service
Danger of possibly contaminated parts!
Contaminated parts can cause personal injuries. Inform yourself
regarding possible contamination before you start working. Be su-
re to follow the relevant instructions and take care of necessary
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 VSH, please return the instrument for
repair and enclose a declaration of contamination (see next page).
The unit is not prepared for customer repair!
Defective sensor heads can be exchanged on-site by calibrated
replacement sensors (spare parts B_VSH87A, B_VSH88A and
B_VSH89A).
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,
extreme temperature,
maladjustment readjustment, replace
sensor or send unit for
repair
Pirani zero adjustment not
possible measurement error
exceeds possible range of
readjustment replace sensor or send
unit for repair
»UR« via RS485 pressure under range (pressure is below range
limit)
»ERROR1« via RS485 /
status LED cont. red defective electronics or
sensor send unit for repair or
replace sensor
status LED cont. orange hot cathode filament 1
defective replace sensor if
appropriate
access code »7« via
RS485 error message / warning see separate
documentation Thyracont
Communication Protocol
VSH-Profinet-200116