Bühler technologies Nivotemp NT 61 Guía Rápida página 7

Nivotemp NT 61, NT 61-HT, NT 63, NT 63-
LTD/Nivovent NV 71, NV 73
NOTICE
On versions with earth wire, this is run as a loop and soldered
to the protective tube from the inside in the insertion direc-
tion. To prevent breaking off the earth wire it should not be
pulled all the way out.
• Mark the original contact position.
• Lock the contacts in place in the desired positions. Please
note the minimum spacing!
If the contacts are configured as NO contact (NO) or NC con-
tact (NC), the contact function can be reversed by turning the
contacts 180°. The housing has symbols for NC contact and NO
contact as well as an arrow. The arrow, which points up when
installed, indicates the current contact function. The contact
logic assumes the level switch is installed in an empty tank,
i.e. it is only in the operating position once filled.
Function NO contact (NO)
with rising level
• If the earth wire was pulled out of the protective tube,
first insert this wire into the protective tube.
• Make a loop of the additional cable length and carefully
slide the perforated rail in again.
• Models NT61: Screw on the plug base. For plugs with
screw-in thread, attach the plug base clean and screw in
hand tight. Leave the pin insert free so the base can turn
around the cables. Now slide the cables all the way in, lock
the pin insert into the guide and slide all the way in.
Tighten the top hexagon ring hand tight.
• Models NV71: Screw on the flange cover. Screw on the fil-
ter case. Attach the filter cover and element.
NOTICE
Ensure the seals are positioned correctly. Replace defective
seals immediately!
4.4 Settings
All models in the series named "63-K..." continuously capture
the liquid level and the temperature via reed-contact or a
Pt100.
Sensor versions "63-K... and 63-KN..." output 4 – 20 mA ana-
logue signals (normally: 4 mA lowest point, 20 mA highest
point).
These devices require no configuration.
Sensor versions "63-LTD" are available with digital interface.
Here the sensor uses the standardised technology IO-Link, an
efficient point-to-point communication. It uses the previous,
proven and tested connection technology.
Compatibility with the previous technology is guaranteed. If
no IO-Link master is connected, the outputs can be used as
regular switching outputs (1 PNP liquid level output, 1 PNP
temperature output).
BX100019 ◦ 08/2020
This allows configuring the switching points via the IO-Link in-
terface.
For the respective IODD configuration data, please visit ht-
tps://ioddfinder.io-link.com.
5 Operation and control
The device must not be operated beyond its specifications.
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.
Function NC contact (NC)
with rising level
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.
NOTICE
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