9
Temperature Calibration Procedure
Tools Required:
Accurate Temperature Measuring Device
Water Supply
See Figure 30 for an example of the test
configuration.
Temperature calibration must be
performed with liquid flowing through
the Tracer flowmeter.
1. Stabilize the temperature by allowing
water to run through the circuit for a
few minutes.
2. Press ON on the Tracer Flowmeter, then
Δ
to display the temperature.
3. Record the temperature shown.
6. Plug the numbers into the following formula:
Measuring device reading - Tracer Flowmeter reading = difference
Multiply the difference x 10.
7. Add the resulting number (positive or negative) to the Temperature
Calibration Value in the Calibration Mode. Use the Calibration Mode
to change the temperature calibration value, as shown on page 7.
8. Verify that Tracer agrees with calibration thermometer and repeat
calibration procedure if needed.
Figure 30
Flow Calibration Procedure
(continued)
Before you begin: Purge all the air from the system by running liquid
through the test apparatus.
For best results, take readings as close to full range as possible (at least 5
gpm for the 3/8"NPT, etc.).
1. If the display is off, push the ON button on the Tracer flowmeter.
2. Turn valve to full open position quickly and start timer
simultaneously.
3. Record flow display on the Tracer flowmeter.
4. When the liquid reaches the selected level in the container, stop
timing and close the valve.
5. Divide the volume from the container by time
in minutes
from the
timer to determine flow rate.
6. Plug the numbers into the following formula:
Tracer reading - manual reading = difference
Multiply the difference x 200.
7. Add the resulting number (positive or negative) to the Flow
Calibration Value in the Calibration Mode. Use the Calibration Mode
to change the flow calibration value, as shown on page 7.
8. Verify and reapt calibration if needed.
