TSI Instruments PRESSURA RPC30 User Manual

Technical Section
71
e. Enter the actual flow measurement under the CALIBRATED FLOW menu item.
f. Press the SAVE key to save the flow data.
g. The low flow calibration is complete.
4. Enter the HIGH CAL item to perform the high flow calibration submenu with the following
items:
HIGH POS
Damper position for high flow calibration
ZERO VOLTAGE
Voltage from pressure transducer during Flow Station
Pressure Transducer Zero
VOLTAGE INPUT
Current voltage from pressure transducer
ZERO VOLTAGE
Voltage from pressure transducer during Flow Station
Pressure Transducer Zero
CALIBRATED FLOW
Input actual flow as measured with reference instrument here
a. With the HIGH POS at 100% (default), observe the VOLTAGE INPUT displayed on the
screen, or use a voltmeter to read the voltage at the pressure input terminals on the back
of the controller.
b. Slowly decrease the HIGH POS percentage value to adjust the damper position until the
VOLTAGE INPUT (pressure transducer output) shows the first noticeable decrease in
voltage from the100% position. A general rule-of-thumb is that the voltage change should
occur with the damper between approximately 70% to 80% open.
c. For reference only, the UNCALIBRATED FLOW item will display the default measured
flow based on the current settings of the flow station (duct area, etc.).
d. Determine the actual flow with a duct traverse.
e. Enter the actual flow measurement under the CALIBRATED FLOW menu item.
f. Press the SAVE key to save the flow data.
g. The low flow calibration is complete.
NOTE: Use BALANCE MODE to verify flow station calibration and adjust the K-FACTOR.
Linear Flow Station Calibration
NOTE: Flow stations are optional and may not be installed in your system.
1. Set DUCT AREA to the duct area at the linear flow station location.
2. Set SENSOR MAX to match the range of the linear flow station used.
3. Set SIGNAL MIN to match the minimum voltage output (0 to 10 V) of the linear flow
station used. This is typically 0 V.
4. Set SIGNAL MAX to match the maximum voltage output (0 to 10 V) of the linear flow
station used. This is typically 10 V.
5. Linear flow station calibration should be complete. Exit the menu.
NOTE: Use BALANCE MODE to verify flow station calibration and adjust the K-FACTOR.

TSI Instruments PRESSURA RPC30 Specifications

General

Brand	TSI Instruments
Model	PRESSURA RPC30
Category	Controller
Language	English