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3.887.5275.250
5. Operations
5.1 Operations
Each transmitter is calibrated in factory and has on the nameplate the configuration data. If not
differently stated in the purchase order the transmitter is configured as follow:
Upper Range Value
(Higher pressure value): refer to the data sheet of unit
Lower Range Value
(Lower pressure value): refer to the data sheet of unit
Damping
0 sec.
5.2 Configuration
The transmitter shows the status and the measure on the dot matrix LCD (
Fig. 14
).
The span is from -99999 to 999999.
The input signal to the transmitter can be related to the output signal in the following ways:
Direct mode
= 4÷20mA output
Reverse mode
= 20÷4mA output
The direct mode is obtained by setting the lower range point with the lowest value of the range (e.g.
0.1 bar) and by setting the upper range point with the highest value (e.g. 0.5 bar).
The reverse mode is obtained by setting the lower range point with the highest value of the range
(e.g. 0.5 bar) and by setting the upper range point with the lowest value (e.g. 0.1 bar).
To display the temperature values of the sensor push the following key during transmitter operation:
= electronic board temperature.
The unit of measure (°C/°K/°F) is defined in the entry TEMP UNIT in the keyboard menu (
Fig. 14
).
Fig. 14 - LD377BL Display
Displayed value
Measuring unit
Choice bar graph / % span
Board temperature display
Menu entering
Bar graph / % Span
Summary of Contents for LD377BL Series
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