Ebtron Advantage IV Series User Manual

3-O&M_Settings_r1r Section 3Page 7
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TABLE 3-2 CORRECTION FACTORS AT VARIOUS ALTITUDES
Actual Airflow = Measured Airflow x Correction Factor
ALT Parameter, ft [m]
Correction Factor
ALT, Parameter, ft [m]
Correction Factor
0
1.00
6,000 [1,828]
1.25
1,000 [304.8]
1.04
7,000 [2,134]
1.30
2,000 [609.6]
1.08
8,000 [2,438]
1.35
3,000 [914.4]
1.11
9,000 [2,743]
1.40
4,000 [1,219]
1.16
10,000 [3,048]
1.45
5.000 [1,524]
1.20
15,000 [4,572]
1.75
Note: Correction factors are based on 70 °F [21.1 °C] and 29.92” Hg [101.3 kPa] at sea level.
3.3.5. Airflow Output Integration [INTG]
The integration buffer size for the running average of the airflow used for analog and network airflow output.
[Menu path: SETTINGS >↓ GENERAL >↓ INTG]
Default: 30
Optional Settings: 1 to 999 (1 to 300 for -F/An probe types and 1 to 750 for HTx202 transmitters)
Transmitters calculate the airflow every 300 milliseconds. The integration buffer is used to smooth real-time
airflow data output to AO1 and the network airflow variable AI1. The default integration of 30 is the running
average (first in, first out) of the average of all sensor nodes over the preceding 9 second time period.
 If the transmitter is configured for two locations, parameters for INTG1 and INTG2 will be displayed in
lieu of INTG.
 Airflow output integration is independent of the integration buffer which is used for airflow data
displayed on the LCD (which is generally higher). Display integration is discussed in the DISPLAY
SETTINGS section.
 Decreasing the integration may improve performance on fast acting control systems such as those
found in laboratories and clean rooms.
 Increasing the integration buffer when installations are mounted in outdoor air intakes may result in
control system hunting. Use the default integration and decrease PID output speed if hunting is a
problem. EBTRON recommends using the default integration for control and a separate, higher
integration, such as that used on the LCD for viewing.
3.3.6. Low Limit Airflow Cutoff [LLIMIT]
The velocity below which the airflow is forced to 0 FPM [m/s].
[Menu path: SETTINGS >↓ GENERAL >↓ LLIMIT]
Default: 0 FPM [0 m/s]
Optional Settings: 0 FPM to 500 FPM [0 m/s to 2.5 m/s]
 If the transmitter is configured for two locations, parameters for LLIMIT1 and LLIMIT2 will be
displayed in lieu of LLIMIT.

Ebtron Advantage IV Series Specifications

General

Brand	Ebtron
Model	Advantage IV Series
Category	Measuring Instruments
Language	English