Sliding Waveguide On Anaerobic Digesters - Siemens sitrans LR200 Instruction Manual

Sliding Waveguide on Anaerobic Digesters

Notes:
• Minimum distance from the flange face to the target is limited by Near Range
(2.2.3.5.1.).
• We recommend adjusting Auto False Echo Suppression (2.2.4.2.) with an empty
or almost empty vessel.
This application is to obtain a level measurement proportional to the sludge level on a
digester.
sensor
reference
point
2 m
High
Cal.
Point
10 m
Low
Cal.
Point
NOTE: Table continues on next page.
Parame- Parameter Name
ter type (number)
Material (1.1.)
Response Rate (1.2.)
Quick start Units (1.3.)
wizard
Operation (1.4.)
parame-
ters Low Calibration Point (1.5.)
High Calibration Point (1.6.)
Apply? (Apply changes) (1.7.)
LOE Timer (2.4.1.)
Other
parame-
ters Fail-safe Mode FB1 (2.4.2.)
Fail-safe Value FB1 (2.4.3.)
7ML19985JR01 SITRANS LR200 (PROFIBUS PA) – INSTRUCTION MANUAL
• The raised position is for installation and
maintenance.
• The lowered position is for operation.
• Program the instrument for operation in
the lowered position.
• Low Cal. Pt. is the bottom of the digester
(10 m/33 ft from sensor reference point
when the instrument is lowered to its
horn
normal operating position).
• High Cal.Pt. is 2 m (6.56 ft) from sensor
reference point.
• The maximum rate of filling or emptying is
about 0.1 m (4")/min.
• In the event of a loss of echo, after 2
minutes LR200 is to report a user-defined
value of 9 m (Fail-safe High condition).
Value
LIQUID
MED
M
LEVEL
10
2
YES
2
SUB
9
Function
1 m/minute
meters
Level
10 m
2 m
If LOE persists longer than 2
minutes LR200 will report value set
in Fail-safe Mode.
Use substitute value
Level will be reported as 9 m.
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