Electrical Connections; Led Statuses; General Key Functions; Operation And Control - Buhler Nivotemp NT M-XP Guía Rápida

Nivotemp NT M-XP
DANGER
Electric voltage
Risk of electric shock
When connecting devices, please note the maximum voltages
and currents currents (see technical data) and use the correct
wire cross-sections and circuit breakers.
When selecting the connection lines, also note the maximum
operating temperatures of the devices.
Installation in special areas of application:
If the device will be installed outdoors or in wet areas, the
maximum operating voltage is max. 16 V DC effective or 35 V
DC.
The flange-mounted display units can be swivelled vertically
by approx. 270° so they are easier to read. Please note the
built-in swivel stop. You will notice more resistance when
reaching the stop. Turning it beyond this stop may damage
the display unit.

4.2 Electrical connections

Electricity is supplied via plug connectors. Please refer to the
appendix for installation dimensions, nominal voltage and
plug configuration.
The temperature switching outputs are PNP transistors (see il-
lustration):
Supply voltage
Note: When measuring the switching output with high-load
measuring device inputs or when used as a frequency output,
the load must be set to 10 kΩ between the output and earth
(GND) to avoid faulty measurements.

5 Operation and control

NOTICE
The device must not be operated beyond its specifications.

5.1 Start-up procedure

The device will automatically switch on when connected to
power. It will first briefly display the software version, at
which time the device will also check the built-in components.
The display will then switch to displaying measurements.
The following describes the function of the display and control
unit:
8 Bühler Technologies GmbH
LEDs
Control keys
If an error message appears in the display during operation,
please refer to the Troubleshooting table under chapter "Ser-
vice and Repair".

5.2 LED statuses

LEDs above the measurement display indicate the status of
the temperature switching outputs. The LEDs are perman-
ently assigned to the switching outputs.
The following table shows the factory settings:
LED 1 – yellow
Status switching output 1
LED 2 - red
Status switching output 2 (if applicable)
LED 3 – yellow
Status switching output 3 (if applicable)
LED 4 – red
Status switching output 4 (if applicable)
The switching characteristics of the LED (on if switching con-
tact closed or open) can be changed.

5.3 General key functions

The keys below the display are used for operation.
The menu controls are detailed in the following chapters.
Key Mode Function
• Measure- Change measured variables dis-
ment dis- played.
play:
Move down one menu level.
• In the menu:
Move up one menu level.
• At the end of
the menu:
The display indicates the end of the
menu.
Confirm and save a numerical value
• Following in-
entered or a function selection. The
put/selec-
display will flash if a parameter has
tion:
been changed.
• Measure- Displays the configuration.
ment dis-
play:
Scroll up menu item, numerical
• In the menu: value or function selection. Holding
the key will continuously scroll.
Display
BX100023 ◦ 07/2019