iTEMP TMT71, TMT72 Operation options
Endress+Hauser 27
Item no. Function Description
6 'Configuration locked' symbol The 'configuration locked' symbol appears when configuration is locked
via the hardware.
7 Status signals
DIN rail transmitter
Two LEDs on the front indicate the device status.
Type Function and characteristic
Status LED (red) When the device is operating without errors, the device status is displayed.
This function can no longer be guaranteed in the event of an error.
• LED off: without diagnostic message
• LED is lit: diagnostics display, category F
• LED flashing: diagnostics display of categories C, S or M
Power LED (green) 'ON' When the device is operating without errors, the operating status is displayed.
This function can no longer be guaranteed in the event of an error.
• LED off: Power failure or insufficient supply voltage
• LED is lit: Supply voltage is OK (either via CDI or via supply voltage,
terminals 1+, 2-)
The DIN rail transmitter version does not have an interface to the LC display and
therefore does not have a local display either.
Local operation
NOTICE
‣
ESD - electrostatic discharge. Protect the terminals from electrostatic discharge. Failure
to observe this may result in the destruction or malfunction of parts of the electronics.
ON
OFF
1
2
4
8
16
32
64
HW
SW
ADDR ACTIVE
SIM
WRITE LOCK
DISPL. 180°
1
2
3
A0014562
18 Hardware settings via DIP switches
1: Connection to head transmitter
2: DIP switches (1 - 64, SW/HW, ADDR and SIM = simulation
mode) no function for this head transmitter
3: DIP switch (WRITE LOCK = write protection; DISPL. 180° =
switch, turn the display monitor 180°)
Procedure for setting the DIP switch:
1. Open the cover of the terminal head or field housing.
2. Remove the attached display from the head transmitter.
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