A&D Weighing AD-4407 - Manual (Page 38)

Page 36 AD-4407 Weighing Indicator
10. 10. 10. 10. Comparison Comparison Comparison Comparison
This function has the "upper / lower comparison", the "5-stage(HiIHi / Hi / OK / Lo /
LoLo) comparison", the "setpoint comparison" and the "simple batch". They compare
the weight data with preset parameters and can output the result of the comparison to
the display and buzzer, also to the relay-outputs of OP-03, OP-05 and OP-08.
Set the F-function f22 and f23 to use the "upper / lower comparison", the
"5-stage(HiHi / Hi / OK / Lo / LoLo) comparison" (these two comparison methods will
be combined and hereafter be called the "Weight check mode"), and f22 through f26
to use the "setpoint comparison" and the "simple batch".
Data is stored in non-volatile memory and is not lost even if the AC power supply is
disconnected or cut off.
10.1. 10.1. 10.1. 10.1. Weight Check Mode Weight Check Mode Weight Check Mode Weight Check Mode
This function compares the weight data with the upper and lower limit values
(upper/lower limit comparison) or four limit values of HiHi, Hi, Lo and LoLo (5-stage
comparison), and displays, sounds the buzzer and/or outputs the results to the three
relays of HI, OK and LO. Use this comparison when judging whether a weight is
proper.
Set the F-function f22 to 1, 2 or 3 to use upper/ lower limit comparison and f22 to 4, 5
or 6 to use 5-stage comparison.
Select a parameter of the F-function f23 for the comparison condition.
Set the F-function f26 (zero band) if f23 10 (not to compare in the zero band).
Specify the upper and lower limit / HiHi, Hi, Lo, LoLo limit values.
When entering the limit value(s), it is not necessary to enter the F-function f22 and
f23 again unless comparison conditions are changed.
There are 3 type of limit values for each comparison.
(1) Set the limit value (upper and lower limit / HiHi, Hi, Lo, LoLo limit).
(2) Set the Target value and an acceptable tolerance(upper and lower) in weight.
The limit value is calculated automatically.
(3) Set the Target value and an acceptable tolerance(upper and lower) in
percentage of the target weight. The limit value is calculated automatically.
Example. Target = 50kg, Upper limit = 51kg, Lower limit = 48kg
(1) Hi(Upper limit) : 51 (kg), Lo(Lower limit) : 48 (kg)
(2) TG(Target) : 50 (kg), Hi(Upper acceptable tolerance) : 1 (kg),
Lo(Lower acceptable tolerance) : 2 (kg) not negative value
(3)TG(Target) : 50 (kg), Hi(Upper acceptable tolerance) : 2 (% of Target),
Lo(Lower acceptable tolerance) : 4 (% of Target) not negative value
10. Comparison