Tolerance Limit Th2; Tolerance Limit Th1; Tolerance Limit Tl1; Tolerance Limit Tl2 - Siemens SIWAREX WP251 Manual

Scale parameters and functions
8.21 DR 22 Tolerance parameters
8.21.3

Tolerance limit TH2

This parameter defines the limit of the second tolerance band above the set point. The
setting conforms to the selected tolerance reference (percentage or absolute) and must be
greater than or equal to tolerance limit TH1.
8.21.4

Tolerance limit TH1

This parameter defines the limit of the first tolerance band above the set point. The setting
conforms to the selected tolerance reference (percentage or absolute) and must be less than
or equal to tolerance limit TH2.
8.21.5

Tolerance limit TL1

This parameter defines the limit of the first tolerance band below the set point. The setting
conforms to the selected tolerance reference (percentage or absolute) and must be less than
or equal to tolerance limit TL2 as a positive value.
8.21.6

Tolerance limit TL2

This parameter defines the limit of the first tolerance band below the set point. The setting
conforms to the selected tolerance reference (percentage or absolute) and must be greater
than or equal to tolerance limit TL1 as a positive value.
8.21.7

Behavior in case of TH1 error

This parameter defines the limit of the first tolerance band below the set point. The setting
conforms to the selected tolerance reference (percentage or absolute) and must be greater
than or equal to tolerance limit TL1 as a positive value.
8.21.8

Behavior in case of TL1 error

This parameter defines the limit of the first tolerance band below the set point. The setting
conforms to the selected tolerance reference (percentage or absolute) and must be greater
than or equal to tolerance limit TL1 as a positive value.
8.21.9

Pulse duration for pulse post dosing

This parameter defines how long (ms) the fine signal is switched on when post-dosing in
pulsing mode was set as the response to a TL1 violation in the tolerance check (function
code 4). The pause time of pulsing mode corresponds to the settling time before standstill 2
(DR 3).
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SIWAREX WP251
Manual, 12/2015, A5E37203357A