7ML19985QX81 SITRANS LR250 (HART) – QUICK START MANUAL Page EN-11
mmmmm
English
10. If the equipment is likely to come into contact with aggressive substances, then it is the
responsibility of the user to take suitable precautions that prevent it from being adversely
affected, thus ensuring that the type of protection is not compromised.
- Aggressive substances: for example, acidic liquids or gases that may attack metals,
or solvents that may affect polymeric materials.
- Suitable precautions: for example, establishing from the material’s data sheet that it
is resistant to specific chemicals.
Programming SITRANS LR250
A Quick Start Wizard provides an easy 5-step guide to help you configure the device for a
simple application.
• See
Quick Start Wizard via the handheld programmer
on page 16.
• See
Quick Start Wizard via SIMATIC PDM
on page 19.
Settings can be modified locally via the Local User Interface (see
Accessing parameters via
the handheld programmer
on page 14) or remotely via SIMATIC PDM. The Local User
Interface(LUI) consists of an LCD display and a handheld programmer.
Activating SITRANS LR250
Power up the device. SITRANS LR250 automatically starts up in Measurement (RUN) mode.
Press Mode to toggle between Measurement and Program Mode.
The LCD Display
Measurement mode
1
((((normal operation)
Fault present
Note: Keep infrared devices such as laptops, cell phones, and PDAs, away from
SITRANS LR250 to prevent inadvertent operation.
1.
In response to a key press request. For details, see
Key functions in Measurement mode
on page 13.
M
[]
LEVEL
21.40 °C
DATA EXCH.
18.91
1 – toggle indicator for linear units or %
2 – selected operation: level, space, or distance
3 – measured value (level or volume, space, or distance)
4 – units
5 – bar graph indicates level
6 – secondary region indicates on request
1
electronics
temperature, echo confidence, loop current, or distance
7 – text area displays status messages
8 – device status indicator
678
1
342
5
S: 0 LOE
7 – text area displays a fault code and an error message
8 – service required icon appears
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