ERROR CALIBRATION
To recalibrate the scale factor due to system error
caused by meter wear or fluid viscosity changes, follow this
procedure:
If necessary, modify the metering system so you can
collect the fluid after it flows through the meter during the
calibration procedure. You must be able to accurately weigh
or measure the fluid that passes through the meter. Be sure
there is sufficient back pressure to assure that the meter is
always filled with fluid.
Program a batch value into the PC100 that is larger than
the capacity of the vessel that will contain the fluid.
Push the START button on the PC100. Press the STOP
button when the fluid nears the capacity of the vessel you
are filling. Be careful not to overflow the vessel.
Accurately measure the fluid in the vessel. Observe the
PC100 display, and determine the quantity of fluid delivered
as determined by the PC100 reading.
Repeat the procedure two or more times to determine if
you have repeatability. You cannot recalibrate unless you
have repeatability. If you system is not repeatable, it is
probably due to mechanical problems with one or more
system components.
If your system is repeatable, use the following formula to
determine the new scale factor:
Quantity Delivered in Vessel
x
Old Scale
=
New Scale
Quantity Indicated on PC100
Factor
Factor
Use function #18 to enter the new scale factor into the
PC100.
FUNCTION #
41
: ENABLE, DISABLE FUNCTIONS
This function allows you to enable or disable the opera-
tion of any one or combination of functions in order to
prevent accidental reprogramming or unwanted tampering
of the unit.
Note: Wiring a jumper or keylock switch across terminals
#15 and #12 will effectively restrict the use of this function.
You will be able to view the functions by scrolling up or down
but you will not be able to enable or disable them.
To operate this function, press: FUNCTION 41 ENTER. At
this point, you will see the three digits to the right. The two
digits to the left represent the function and the digit to the
right of the decimal point is a 1 if the function is enabled or
a 0 if disabled.
Press 0 to scroll up (functions 01.1, 10.1,12.1.....etc.)
Release the key to stop at the desired function. To disable or
enable that particular function, press ENTER. The first digit
will then change from 1 to 0 or from 0 to 1.
To scroll down (functions 12, 10, 1, 67, 66, etc.), press key
9. Press 2 to return to batch count or FUNCTION to continue
programming of other functions.
FUNCTION #
44:
DISABLE STOP
This function is used to disable the front panel STOP
command. Disabling the front panel STOP prevents acciden-
tal stopping of the process. The remote STOP can be con-
nected for supervised emergency STOP operation.
Program function #44 at 1 to disable. While disabled the
STOP command can still be used to clear a FAIL SAFE
condition (see function #30).
FUNCTION #
45:
DISABLE RESUME
This function is used to disable the front panel RESUME
command. Disabling the RESUME command can prevent
accidental restarting of a bad batch without supervision.
This function can still be controlled remotely. Program the
code to 1 to disable.
FUNCTION #
46:
DISABLE START
This function is used to disable the front panel START
command. Program the code to 1 to disable. Once disabled,
this function cannot be operated through the front panel
nor remotely. Disable START only when using the PC100 as
a nonresettable totalizer.
FUNCTION #
43:
FACTORY DEFAULT
Programming this function to 1 will reprogram all func-
tions to the values set at the factory:
#18
Scale Factor = 1.0000
#20
Flow Rate In = Units Per Minute (1)
#36
Totalizer Output = 15 ms (1)
#50
Count Mode = DOWN (2)
#51
Reset/Preset = Go to batch on down;
go to zero on up
#41
All Functions Enabled (1)
14
Summary of Contents for PC100
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