15
02041
Flow
Flow
Outlet
Apex Pump
Cyclone
Sampling Head
Dry Cal Flowmeter
Connecting tube
(5 mm nominal internal dia.)
Dry Cal
®
Primar y Flow Mete r
TE MP 19 .48
2 .5
1. In Hold Mode, press or several times until FLOW SEt blinks on the display.
2. Press to select it.
3. Use and to set the required sampling flow rate.
As a general rule, the pump should be calibrated to the flow required for the proposed task.
3. Press to accept the setting. The pump will start.
4. As soon as CAL SEt is displayed, use and to adjust the actual flow measured by
the flow meter to match the set point.
5. When the flow rate is acceptable, press to accept the value.
This calibration point will be saved and used by the pump in all future samples made at this flow.
If no control key is pressed within 30 seconds, the pump will revert to Hold Mode automatically.
6. If it is decided not to save this calibration, press and hold for a moment to abort and return to
Hold Mode.
The combination of automatic flow control and intelligent internal calibration procedures can substantially
reduce the number of calibration points required.
When a more comprehensive calibration is required, the basic calibration can be fine-tuned during normal
operation by making further single-point flow calibrations at specific flows as described above.
For information about recalibrating the whole range of an Apex or Apex Pro unit, refer to Chapter 5.
2.4 Configuration Mode
This allows basic settings such as display language and measurement units to be changed, gives access to
Calibration and Duration modes, plus the additional modes available to an Apex Pro. When the current
configuration settings are acceptable, proceed directly to Chapter 3.
Configuration Mode can be activated only while switching the instrument on.
1. Press to switch the instrument ON.
2. Immediately hold both and down.
The following series of configuration options is displayed. The
settings that are adjustable will blink.
LANG Sets the display language from:
ENG English,
FRA French,
DEU German,
ITA Italian,
Figure 8: Calibration with cyclone head
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