Siemens sitrans tr200, Operating Instructions Manual

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Connecting
5.6 LED operating indicator
SITRANS TR200/TR300
Operating Instructions, 04/2007, A5E01071992-01
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5.6 LED operating indicator
● Operating indicator does not light: no supply voltage
● Constant green light: Everything OK, normal error-free operating status
● Constant/flashing red light: incorrect operation
–
Flashing (approx. 2 Hz) red: Indication of faults independent of the device, e.g. broken
wire, sensor short circuit, transgression of the sensor limits
– Constant red light: Indication of errors in the device, such as RAM,
ROM, EEPROM, CHECKSUM, WATCHDOG, STACK errors or when exceeding or
dropping below the permissible ambient temperature
5.7 Test terminals for output signal
The "Test +" and "Test -" test terminals are used for checking the 4 to 20mA current with an
amperemeter. The voltage drop across the amperemeter must not exceed 0.4V for a 23mA
output current.