Operating Manual of Ammonia Nitrogen Sensor
37
0xF209
Slave baud rate
UINT16
read/write
Slave baud rate set range 4800
、
9600
、
19200
、
38400
、
115200
，
Use the integer 1, 2, 3, 4, 5 to
represent the corresponding
baud rate
Support 03, 06 commands
0xF20A
Parity
UINT16
read/write
0 means no parity; 1 means
ODD odd parity, 2 means
EVEN even parity
Support 03, 06 commands
Chapter 8 Errors and Warnings
If errors and warnings occur, the readings on the measurement screen will flash and there will be a
“Fault” appearing at the bottom. The common faults and warnings are shown as follows:
1
）
ERR3 Error
When the ERR3 alarm occurs, it refers to the current loop is out of range and the actual output is
greater than 20mA. The readings on the screen will flash continuously and “ERR3” will be displayed
below the reading. When this warning occurs, please contact the technical support or after-sales service
department.
2
）
Sensor Loss Warning
When the probe is not connected to the transmitter, “Not Connected” will be displayed on the screen;
when the connection between the probe and the transmitter is weak, the alarm of the sensor loss will
appear, and the screen will flash continuously on the next line. The word "Fault" will be displayed. When
the above situation occurs, the steps below are suggested to follow:
1
Disconnect the transmitter power supply and reconnect the sensor to ensure the connection is
correct.
2
Connect the power supply and observe the measurement interface. If the connection is