4 Transmitter
14
10
9-pin connector for the
current/voltage supply
11
Socket for Ethernet interface
12
Relay cover with 12-pin
connector underneath for
relay connection (option)
13
Negative pressure
connection (Ø 6.4 mm)
14
Blind connection as hose
holder for front pressure
connection hose (Ø 6.4 mm)
15
Positive pressure connection
(Ø 6.4 mm)
4.2.2.
Display and keypad
The display option allows operation of the testo 6383 transmitter via
the display and four keys.
The LCD display consists of two 7-segment lines for displaying
readings and units and of an information line (for status messages,
for example).
The brightness and contrast of the display and the background
lighting (permanent or off) can be changed via the user menu or the
P2A software.
4.2.3.
Service interface
The parameterizing socket (mini-DIN) is located behind the service
cover as an interface to the P2A software.
4.2.4.
Relay board (option)
This has a floating switch capacity of 250 V AC/3 A. The switching
limits and hysteresis as well as the function as relay for the
collective alarm can be set via the display or the P2A software.
Further features include:
• Function of changeover contacts (NC/NO contacts) freely
selectable
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