L BAL E263

7.6 Nozzle coefficient (K-Factor)
Maximum K-Factor depending on the measuring range of the pressure sensor
Range
[Pa]
[in.wg]
200
0.8
300
1.2
500
2.0
1000
4.0
2000
8.0
3000
12.0
4000
16.0
6000
24.0
Max.
K-Factor
US
4596
32767
3752
32767
2906
32767
2055
32500
1453
22980
1186
18763
1027
16250
839
13268
Air volume measuring range [m
3
/h], [cfm] depends on selected
measuring range of pressure senosr [Pa], [in.wg] and selected “K-
Factor (US)”. In menu “INFO” display for “Range qV”. Maximum
measuring range at input of each possible maximum “K-Factor
(US)”.
Air flow measuring range: max. 65000 m
3
/h (38257 cfm) depend-
ing on setting of measuring range and K-Factor.
7.7 Zero point adjustment (Autozero / Offset)
A zero-point adjustment is possible if the actual value is not “0 Pa
Δp” or “0 m
3
/h qV” in pressureless state. A zero point calibration is
possible with the function “Autozero”.
This may be necessary, for example, in case of heavy thermal
fluctuations in the sensor environment or non-vertical mounting.
Procedure
1. Pull off the pressurised hoses.
2. Switch function “Autozero” in BASE SETUP to “ON” .
3. The display switches to the actual value display and the value
“0” is displayed after zero point calibration has taken place.
4. The necessary difference up to “0” is displayed in the BASE
SETUP under “Offset”.
Alternatively to the automatic zero point calibration, the offset
value can also be set manually
BASE SETUP / Offset.
Operating Instructions PCA1000/6000D2 Programming
L-BAL-E263-GB 1551 Index 001 Part.-No. 00163445-42
16/20