Bühler technologies Nivotemp NT 61D Notice De Montage page 13

Nivotemp NT 61D, Nivovent NV 71D
For the detailed illustration of the entire menu structure
please refer to the original operating instructions at the end
of this chapter.
6 Maintenance
Always observe the applicable safety- and operating regula-
tions when performing any type of maintenance. Please refer
to the original operator's manual on the included CD or online
at www.buehler-technologies.com for maintenance informa-
tion.
7 Service and Repair
Please refer to the original operator's manual on the included
CD or online at www.buehler-technologies.com for a detailed
description of the unit including information on
troubleshooting and repair.
7.1 Troubleshooting
Problem / Possible cause
Malfunction
No display • No supply
voltage
Error messages on the display:
Alternating between Err and Exxx: e.g.
Error 001 • Ambient tem-
perature too
low
• Ambient tem-
Error 002 perature too
high
Error 004 • Pt100 defective
(short-circuit)
• Pt100 defective
Error 008
(cable break)
Error 1024 • Internal error
Possible errors
Problem / Possible cause
Malfunction
Switching out- • Switching output
put not trig- configured incor-
gering when rectly
exceeding lim-
its
• Switching output
defect
Switching out- • Switching output
put constantly configured incor-
switching rectly
BX100017 ◦ 02/2024
The analogue
doesn't re-
ceive the full/
correct output
current
Analogue out-
put doesn't
change the
Action
output signal
when the in-
put signal
• Check cable and
changes
replace, if neces-
sary
8 Disposal
The applicable national laws must be observed when dispos-
⇔
ing of the products. Disposal must not result in a danger to
• Maintain limits
health and environment.
The crossed out wheelie bin symbol on Bühler Technolo-
gies GmbH electrical and electronic products indicates special
disposal notices within the European Union (EU).
• Maintain limits
• Send device in for
repair
• Send device in for
repair
• Please contact
customer service
Action
We are obligated by law to protect our employees from haz-
ards posed by contaminated devices. Therefore please under-
• In submenu Coux:
stand that we can only dispose of your waste equipment if the
"Test Switching
device is free from any aggressive, corrosive or other operat-
Output" to ensure
ing fluids dangerous to health or environment. Please com-
normal mode
plete the "RMA Form and Decontamination Statement", avail-
able on our website, for every waste electrical and electronic
• In submenu Coux:
equipment. The form must be applied to the packaging so it is
"Test Switching
visible from the outside.
Output" to test the
desired switching
Please return waste electrical and electronic equipment to the
output
following address:
• In submenu Coux:
"Test Switching
Output" to ensure
normal mode
Problem / Possible cause
Malfunction
• Switching output
defect
• Wrong signal type
set
• Load too high
(current output)
• Analogue output
configured incor-
rectly
The crossed out wheelie bin symbol indicates
the electric and electronic products bearing
the symbol must be disposed of separate
from household waste. They must be properly
disposed of as waste electrical and electronic
equipment.
Bühler Technologies GmbH will gladly dis-
pose of your device bearing this mark. Please
send your device to the address below for this
purpose.
Bühler Technologies GmbH
WEEE
Harkortstr. 29
40880 Ratingen
Germany
Action
• In submenu Coux:
"Test Switching
Output" to test the
desired switching
output
• In submenu Aoux:
Check and if neces-
sary set the correct
signal type (cur-
rent/voltage out-
put)
• Reduce load to per-
missible value
• In submenu CAnx:
„Test Analogue
Output" to ensure
normal mode
Bühler Technologies GmbH 13