Issue/Rev. 0.2 (12/12)
Page 156 • MN0M023
10 Block SPECIAL FUNCTION Device Functions Proline Promass 83
– Quantity data for when the second valve should open:
Function OPEN VALVE 2 (7224) page 154 = 0 [kg]
– Quantity data for when the second valve should close:
Function CLOSE VALVE 2 (7223) page 154 = 8 [kg]
– Quantity data for when the message should be generated:
Function PROGRESS NOTE (7243) page 160 = 9 [kg]
Example 1 a
Batching specifications identical to those in example 1, however the new batching quantity is
20 kg and the message should be generated once 18 kg are batched.
The following parameters must be set manually:
– Enter the new batching quantity:
Function BATCH QUANTITY (7203) page 148 = 20 [kg]
– New quantity data for when the message should be generated:
Function PROGRESS NOTE (7243) page 160 = 18 [kg]
The following functions are automatically adjusted to suit the new batching quantity:
– Function OPEN VALVE 1 = 0 [kg]
– Function OPEN VALVE 2 = 0 [kg]
– Function CLOSE VALVE 2 = 16 [kg]
Example 2
The second example explains the parameter settings of the various functions for batching with the
entry format in % for the switch points of the valves.
The following batching is to take place:
• 2-stage batching with a batching quantity of 15 kg in total.
• Coarse batching quantity from 3 to 12 kg. Valve 2 opens when 20% (3 kg) of the batching
quantity is achieved and closes when 80% (12 kg) is achieved.
• Valve 1 opens at the start of the batching and closes (automatically) when the batching quantity
(15 kg) is achieved.
•%-input should be entered.
A0004684
0
➀
➁
➂
➃
v
t
x
V
V
2
1
12315
v = Flow velocity [m/s]
t = Time
V
1
= Valve 1 open
V
2
= Valve 2 open
m= Start batching, valve 1 (7220) opens
n= Valve 2 (7222) opens, coarse batching quantity starts
o= Valve 2 (7223) closes, coarse batching quantity achieved
p= Valve 1 (7221) closes, end of batching
x = After run quantity
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