Casella CEL Software for the Tuff sampling pumps - Manual (Page 16)

CHAPTER 6 CALIBRATION
Perform Single Point Calibration (Set Flow) Figs 27, 28, 29 and 30. This allows the
user to set the required flow rate for the sample to be taken and check with an external
flow calibration device.
Note: “Flow Set” and “Reset” options are not available in Partial Lock mode.
From Main Menu , press UP/DOWN keys to go to SET FLOW. Press ENTER to access
Set Flow options. Use UP/DOWN keys to adjust the flow setting required. Press
ENTER to continue.
PRO and PLUS ONLY
- Use UP/DOWN keys to calibrate the Sampler flow setting .
Figure 27 Set Up Calibration
Attach a sampling head and flow tube or other flow-measuring device to the pump’s
inlet nozzle to measure the actual flow as shown in Figures 28, 29 and 30. Press the
UP/ DOWN keys to adjust the flow rate until the value shown on the flow measuring
device agrees with the required flow rate.
(Note Tuff standard models do not show the flow rate on the pump display. Use
UP/DOWN keys to alter flow shown on calibration device until the required flow rate is
reached.)
Press ENTER to set the flow rate and return to the Main Menu.
A. Clamp B. Sampling Head C. Clamping Studs D. Flowmeter Stand
E. Rotameter Tube F. Rotameter Float (Read Flow Rate from Top of Float)
G. Hose (Nominal Diameter 5mm) H. TUFF TM Pump
Figure 28 Calibration with Rotameter
Casella CEL Limited 16