Bailey Platinum standard Series, Product Instruction

Page: 50 / 100

CALIBRATION
CALIBRATION PROCEDURES
WBPEEUI110505A0 4 - 5
Digital Mode Calibration
1. Mount the transmitter in one of the shop calibration fix-
tures shown in Figure
4-1 and connect the transmitter in a
calibration setup such as the one shown in Figure 4-2 .
NOTE: Turn the negative (-) test terminal jumper screw ½-turn
counterclockwise.
2. Orient the transmitter in the same position as the final
installation.
3. Connect the pressure source to the high pressure (+) side
of the cell through the shop calibration fixture.
4. Apply a pressure to the cell equal to the configured or
desired lower range value.
5. Since the transmitter configuration is for digital operation,
the milliammeter should read below 4 mA.
6. Press the OUTPUT key on the Type STT terminal, then
select
MONITOR OUTPUT .
7. The Type STT terminal should display 0.00,
±
0.20%.
8. Apply a pressure to the cell equal to the configured or
desired upper range value.
9. Since the transmitter is configured for digital operation,
the milliammeter should read below 4 mA.
NOTE: If the four to 20-milliampere output changes with respect to
pressure, then the unit is not in the digital mode. To enter this mode,
press the CONFIGURE key on the Type STT terminal and follow the
step-by-step procedures in the
Type STT Smart Transmitter Ter-
minal Instruction. Use the SEND CONFIG key to download the
new configuration to the transmitter (
Section 5 ).
10.
Press the OUTPUT key
on the Type STT terminal and select
MONITOR OUTPUT .
11. The Type STT terminal should display 100.00% (
±
0.20%).
12. If the digital output is not within the limits stated in
Steps 7 and 11, calibrate the transmitter. To do so, press the
CALIBRATE key on the Type STT terminal and follow the pro-
cedures in the
Type STT Smart Transmitter Terminal
Instruction .
13. Turn the negative (-) test terminal jumper screw clockwise
until tight.