Calibration Procedure - Flow - Signet 9900 Operating Instructions Manual

Calibration Procedures - Flow

Calibration Procedure - Flow

Select RATE CALIBRATION to match the dynamic fl ow rate to an external reference.
Entering a rate will modify the existing K-Factor.
Select VOLUME CALIBRATION if the fl ow rate can be determined by fi lling a vessel
of known volume. The 9900 will count the number of pulses generated as the known
volume of fl uid passes through the sensor, and then use the information to calculate
a new K-Factor.
Rate Calibration Procedure
1. Use ▲, ▼ and ► to set the fl ow rate in the fl ashing display to match the reference meter.
Press ENTER when completed.
2. The 9900 displays the newly calculated K-Factor for your reference.
(If the calculated K-Factor is less than 0.0001 or greater than 999999 (out of range at
either extreme), the 9900 displays "ERROR NEW KF OUT OF RANGE" and returns to
RATE CAL. If fl ow is too low to accurately calibrate, the 9900 displays "ERROR FLOW
RATE TOO LOW and returns to RATE CAL.
3. Press ENTER to accept the new K-Factor (9900 displays "SAVING") or press ▲+▼
keys simultaneously to escape without saving and return to Enter Volume.
NOTE: You may enter your own calculated K-Factor in the INPUT menu.
Volume Calibration Procedure
1. Press ENTER to start the volumetric calibration period.
The 9900 starts counting pulses from the fl ow sensor.
2. Press ENTER to stop the volumetric calibration period.
The 9900 stops counting pulses from the fl ow sensor.
3. Enter the volume of fl uid known to have fl owed past the sensor during the volumetric
calibration period. This will modify the existing Flow K-Factor.
4. The 9900 displays the newly calculated K-Factor for your reference.
(If the calculated K-Factor is less than 0.0001 or greater than 999999
(out of range at either extreme), the 9900 displays "ERROR VOLUME TOO HIGH"
(or LOW) and returns to VOLUME CAL.)
5. Press ENTER to accept the new K-Factor (9900 displays "SAVING") or press ▲+▼
keys simultaneously to escape without saving and return to Enter Volume.
NOTE: You may enter your own calculated K-Factor in the INPUT menu.
9900 Transmitter 61