User`s guide

Chapter 7: Troubleshooting and Reconfiguring Series D8 User’s Guide
176 Watlow Anafaze Doc. 0600-3120-2000
Scaling and Calibration
The controller provides offset calibration for thermocouple,
RTD, and other fixed ranges, and offset and span (gain) cali-
bration for process inputs. In order to scale the input signal,
you must:
1. Install appropriate scaling resistors.
2. Enter the input range at the Disp format parameter in the
Input menu. The smallest possible range is -.9999 to
3.0000; the largest possible range is -9999 to 30000.
3. Enter the appropriate scaling values for your process. See
Setting Up a Process Input on page 88.
Configuring Serial DAC Outputs
On the Serial DAC, the voltage and current output is jumper-
selectable. Refer to Figure 7.5. Configure the jumpers as indi-
cated on the Serial DAC label.
Figure 7.5 Serial DAC Voltage and Current
Jumper Positions
+5V IN
COM IN
CLK IN
DATA IN
FLASHING
=RUNNING
+ OUT
-
OUT
P
IN
:
1
2
3
4
5
6
OUTPUT SELECT
CURRENT
VOLTAGE
{
{
NA
FAZE
SERIAL DAC
Jumper