Function group
BATCHING
COMPENS.
QUANTITY
In this function a positive or negative compensation quantity is defined. This
quantity compensates for a
consistent
error in batching amounts due to plant
operation. This can be caused, e.g. due to after running of a pump or the
closing time of a valve. The compensation quantity is determined by the
operator of the plant. The compensation quantity only affects the batching
quantity.
• Overfilling → a negative correction factor is to be set
• Underfilling → a positive correction factor is to be set
Example:
Batching quantity = 100 l; pre-batch quantity = 90 l
→ maximum positive correction factor = +100 l
→ maximum negative correction factor = –10 l
Note!
If no sufficiently large negative correction factor can be set, then the initial
switch-off quantity may have to be lowered.
6
5-digit number with floating decimal point and arithmetical sign
(e.g. –10.000 l)
Factory setting:
0.0000
[unit]
7
UNIT ==> VOLUME UNIT
Unit selection → see “VOLUME UNIT” function
BATCHING
This function is used to manually start a batching cycle or to stop a batching
cycle already running. A running batching cycle can be stopped at any time.
Starting or stopping a batching cycle has a direct influence on relay 1 and 2, if
configured for “BATCH PRECONTACT” and/or “BATCH CONTACT”.
6
START – STOP –
CANCEL
(
1
activates START or STOP)
MAX.
BATCH TIME
Set the maximum filling period according to which Relay 2 (BATCH CONTACT)
is to switch (de-energised), e.g. for safety reasons in case of a plant failure.
6
max. 5-digit number: 0...30000 s
Factory setting:
0s
(= switched off)
BATCH CYCLE
In this function the number of batching cycles executed is shown:
Max. 7-digit number: 0...9999999
Factory setting:
0
RESET
BATCH CYC.
With this function the batching totalizer can be reset.
6
NO
– YES
7
Display showing the number of successfully executed
batching cycles.
Note!
Promag 33 6 Description of Functions
Endress+Hauser 65
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