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General Description
MAGNA temperature displays consists of a MAGNA RS485 serial input large digit display
and a Micron MLT series RTD or thermocouple transmitter with an RS485 output. Use of a
digital RS485 interface ensures that the displayed reading is always the same as the
transmitter reading. It allows the Micron transmitter to be installed inside the MAGNA display
housing or to be installed remotely with long RS485 cable runs. Such runs allow wide separation
between the display and the temperature source, while keeping the sensor wires short.
The Micron RTD transmitter, if selected, can be set up for four RTD types: Pt100 for DIN
alpha of 0.00385, Pt100 for ANSI alpha of 0.003902, nickel Ni120, or Copper Cu10. The
Micron thermocouple tansmitter, if selected, can be set up for seven thermocouple types: J,
K, T, E, N, R, S. Both transmitters can be set for °C or °F, and 1° or 0.1° resolution. A
resolution of 0.1° is normally reserved for RTDs. When you specify the sensor type, °C
or °F, and 1° or 0.1° resolution, the system is shipped ready to run for your application.
Available digit heights are 57 mm (2-1/4"), 102 mm (4.0"), 150 mm (5.9"), and 200 mm
(7.9"). For every 10 meters of viewing distance required, use 1” of digit height.
Optional alarm relay outputs, analog output, and a serial data output modules can be ordered
and are programmable via the display’s front panel keypad. An optional 4-wire remote
pushbutton unit allows the display to be programmed while it is mounted in an inaccessible
location.
Other options are: 100-240 VAC or 11-30 VDC power; normal of daylight viewing display
brightness; wall mount, suspension mount or panel mount; and a heater for operation down to
-25°C.
MAGNA displays must be installed fully assembled, and must be installed according to local
electrical installation rules.
When properly installed, and provided they have been ordered with cable glands exiting the
lower surface of the case, they provide environmental protection to IP65 / NEMA4X from all
sides.
Safety
Obey all safety warnings in this manual, and install the display according to local wiring and
installation regulations. Failure to follow these guidelines may cause damage to the display,
connected equipment, or may be harmful to personnel.
Any moving mechanical device controlled by this equipment must have suitable access guards
to prevent injury to personnel if the display should fail.
!
Caution: There is a risk of electrical
shock if this display is not properly installed
Caution: Risk of danger: Read the whole
manual before you install this display
