Setra System Model 869 User Manual

Page 26

6.7 SYSTEM

Screen Instructions (Diagram 17):
Data and system values:

Software Version - Version of software on Pocket PC.

Firmware Version - Version of firmware on calibrator microprocessor
board.

Serial Number - Serial number of device.

Next Calibration Due Date - Calibration due date set at factory when
calibrated - set for one year after latest calibration.

Current Date - System Date/Time Display - This must be set through
Pocket PC settings. Date should be set accurately to notify operators of
upcoming calibration due date.

Filter Length - The number of samples taken when a data point is
collected during an automated test. It is also the number of samples
taken when HOLD SAMPLE button is pressed on Real Time page. The
software will read this number of samples and return the average as the
data value.

Excitation - This value is the current excitation being provided to +EXC.

Battery Level - This value is the current battery voltage level.

Comm On - Check box allows interruption of communication stream
between Pocket PC and 869 base. This allows Pocket PC to be removed
from base and still allow UUT, test profile, and system configuration
changes. Disabling Comm. prevents testing and calibration from being
performed.

Edit Defaults - Brings up default settings page.
(for more, see Diagram 18, pg. 28)
Engineering Units - Opens the Engineering Units Selection Page (for
more, see Diagram 20, pg.30)

Leak Test System- Initiates leak test (pressure decay test) function.

This function should only be performed in a closed system.

The number returned is a rate of pressure decay.

7.0 UNIT UNDER TEST CONNECTION

STANDARD 869 - (See Diagram 22)

1. Attach the unit in a secure location. Two 8-32 threaded inserts are pro-
vided in the area above the USER INTERFACE PANEL to install the UUT.
A custom bracket may be created to mount to these inserts for testing the
UUT in a desired location.

2. Hook up the pneumatic lines - attaching the high port (HI) on the cali-
brator to the high port on the UUT and the low port (LO) on the calibrator

to the low port on the UUT.

3. Hook up electrical - (See Diagram 23, pg. 32)

EXPERT SYSTEM - (See Page 33)

8.0 CALIBRATING/TESTING A TRANSDUCER/TRANSMITTER

MANUAL CALIBRATION:

1. Select UUT tab. Select UUT ID from list and verify.

2. Select REAL TIME tab
3. Connect UUT according to UUT Connection Guide (Above).

4. Press the -FS button (will be updated in the target pressure window) it
will generate the lowest pressure of the UUT range, wait until pressure is
achieved.

5. At this point, you may adjust the zero adjustment on the UUT until the
output is within desired tolerance.

6. Once zero is adjusted, press the +FS button (target pressure will again
update in window) wait until pressure is achieved. You may adjust the
span potentiometer until within desired specification.

7. Unit should be calibrated at this point. To verify, select TEST tab.

AUTOMATED TEST:

1. Select TEST tab

2. Select UUT from list, (if not available, follow instructions for creating
new).

3. If selected test profile is not desired test, then select NEW test from list.

4. Press DO TEST button and wait for completion.

EXPERT SYSTEM TEST:
(see page 33)