DencoHappel MATRIX OP21C User Manual

Operating MATRIX control panel MATRIX control panel
78 PR-2011-0110-GB • Subject to modifications • R9-03-2016
Sensor inputs ➜ Input type
If the following points are selected in the "Use" submenu:
– Measuring duct pressure
– Measuring volume flow
– Volume flow measurement with pressure sensor
the suitable voltage range for the used sensor can be selected in the submenu
"input type". Factory setting is 0-10V. The submenu "Input type" is not shown for
the other uses.
Sensor inputs ➜ Range start/range end
If a sensor input is activated in the "Use" submenu, a range start and a range end
(e.g. 0-500 Pa or 30-100%) must be specified. In this case the external setting or
the measurable range of the sensor is displayed linearly on the selected input sig
-
nal (e.g. 0-10V).
Depending on the selected use, different physical variables can be entered, as
the following table demonstrates
The specifications of the sensor values are given in the technical documentation
on the air handling unit or sensor, or on the sensor itself.
Input type
0..10 Volt
2..10 Volt
m³/h
m³/h
Range start
1000
Range end
20000
Application: Value in:
Speed setpoint range 0-10V Percent [%] of the
maximum speed
Measuring duct pressure Pascal [Pa]
Measuring volume flow m
3
/h
Volume flow measurement with pressure sensor Pa
Value
range:
Speed setpoint range 0-10V 0 to 200%
Adjustable steps: 1%
Factory setting: 0 to 0%
Measuring duct pressure 0 to 5,000 Pa
adjustable steps: 5 Pa
Factory setting: 0 to 0 Pa
Measuring volume flow 0 to 65,000 m3/h
adjustable steps: 10 m
3
/h
Factory setting: 0 to 0 m
3
/h
Volume flow measurement
with pressure sensor
0 to 5,000 Pa
adjustable steps: 5 Pa
Factory setting: 0 to 0 Pa
NOTICE!
When measuring volume flow with a pressure sensor, unlike direct measuring
of volume flow, the volume flow is calculated using the fan differential pressure.
For this purpose the differential pressure measured by the sensor input is con-
verted into volume flow by using the so-called K-factor (refer to sensor inputs
➜ K-factor on Page 79)

DencoHappel MATRIX OP21C Specifications

General

Brand	DencoHappel
Model	MATRIX OP21C
Category	Controller
Language	English