71
4) Equation entry mode,
where the coefficients of a polynomial Y = K1X^P1 + K2X^P2 +
K3*X^P3 + are entered. Up to 20 terms are allowed. And offset can be built into X.
REQUIRED USER INPUTS
•
Select CTR
•
You will be asked to supply the following:
LOW X-COORDINATE VALUE >
LOW INPUT MEASUREMENT VALUE >
HIGH X-COORDINATE VALUE >
HIGH INPUT MEASUREMENT VALUE >
This informs the computer of your signal conditioner jumper settings. Enter 0 and 0 for
the two LOW values. For HIGH X, enter your signal conditioner jumper range in the
same units of measure that you will be using in your *.RAW data input file. Enter
20
for
20 mA or
10
for 10V. For HIGH INPUT MEASUREMENT VALUE, enter
100000
,
You will be asked to select the position of the decimal point from 6=X.XXXXX, 5=
XX.XXX, 4=XXX.XXX, 3=XXXX.XX, 2=XXXXX.X, 1=XXXXXX (for DPMs, the leading X
is a blank). Specify the same position that you specified in the
dEc.Pt1
decimal point
menu selection.
20. METER CALIBRATION
All ranges of the meter have been digitally calibrated at the factory prior to shipment using
computers and calibration equipment certified to NIST standards. If recalibration is required,
the meter may be returned to the factory or to any authorized distributor.
For frequency and rate measurements with the dual-channel signal conditioner, a calibration
correction to the quartz crystal oscillator is stored in EEPROM on the main board. Calibration
constants are also stored in EEPROM in the process receiver & totalizer signal conditioner
board and in the analog output board. As a result, these two boards can be mixed and inter-
changed without requiring recalibration.
For frequency calibration using the dual-channel signal conditioner board, calibration may be
performed in the field as follows using the front panel pushbuttons:
1.
Set
InPut
to
rAtE
and
A only
.
2.
Enter 0 in
CALib
to set initial correction to 0 PPM.
3.
Set
SCALE
to -9.99999
4.
Set
OFFSt1
to 999999
5.
Apply a 100 kHz reference signal to channel A.
6.
Enter the displayed reading in
CALib
.
For calibration of the process receiver & totalizer signal conditioner board or analog output
board, an RS-232 board must be installed in the meter for serial communication with a PC.
This board may be removed upon completion of calibration. Calibration software and step-by-
step instructions are available from the factory.
Summary of Contents for 800 plus
Page 63: ...63 SERIAL CONNECTION EXAMPLES ...
