Configure Home Page; User Calibration - Brainchild P41 User Manual

3-6 Configure Home Page

3-6 Configure Home Page
The conventional controllers are designed with a fixed parameter
scrolling. This unit has the flexibility for you to select those parameters which
are most useful to you and put these parameters in the home page. Hence,
you can have a custom home page.
There are up to eight parameters can be selected for home page,
these are : SEL1~SEL8 in the configuration page.
There are 19 parameters can be selected for SEL1~SEL8, these are: INPT,
UNIT, DP , PB1, TI1, TD1, PB2, TI2, TD2, OFST, O1HY, CYC1, CYC2, CPB,
DB, A1HY, A2HY, A3HY, ADDR.
When using the up-down key to select the parameters, you may not obtain
all of the above parameters. The number of visible parameters is
dependent on the configuration codition. The hidden parameters for a
specific application are also deleted from the values of SEL1~SEL8
parameters.

3-7 User Calibration

3-7 User Calibration
Each unit is calibrated in the factory before shipment. You still can modify
the calibration conditions after shipment.
Purpose of user calibration Purpose of user calibration
The basic calibration of the unit is highly stable and set for life. User
calibration allows you to offset the permanent factory calibration to either:
1. Calibrate the unit to meet your reference standard.
2. Match the calibration of the unit to that of a particular transducer or
sensor input.
3. Calibrate the unit to suit the characteristics of a particular installation.
4. Remove long term drift in the factory set calibration.
There are two parameters: offset low value
OFSTH OFSTH which are adjusted to correct the error of process value.
See section 1-5 for key operation flowchart, press
calibration page is obtained. Send the low signal to the input of unit, then
press key. If the process value (the upper display) is different from
the input signal, then you can use
OFSTL value (the lower display) until the process value is equal to the
value you want. Then press and hold
point calibration is finished. The similar procedure is applied to high
point calibration.
OFSTL OFSTL
and
key for 5 seconds. The low
UM0P411A
and offset high value
key until low
keys to change the
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