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PYS3428 Datasheet

Pyrodetectors

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Pyroelectric detectors for GAS MONITORING
Pyrodetectors
For Gas Monitoring And Measuring
PYS 3228, PYS 3428 – Dual-Channel Pyros
Applications
Gas Sensing and Monitoring
Features and Benefits
TO-5 metal housing
Dual Channel Output
Each Channel with individual Filter Window
Selection of narrow band pass filters
Thermal Compensation option
Product Description
As the successor to the LHi 814 series, the PYS 3x28 Dual-Channel detectors have
become standard for gas sensing applications, with two, individual 1.5 x 1.5 elements,
and with additional temperature compensation. They are available with a range of
narrow band pass filters, as specified on page 4, in combination with a reference filter.
The same features are included with the PYS 3428, which offers additional EMI
protection by internal capacitors.
PYS 3228
PYS 3428
PYS 3228 and PYS 3428
Parameter
Operation Voltage
Responsivity, min.
Responsivity, typ.
Match, max.
Noise, max.
Noise, typ.
spec. Detectivity
Field of View, horizontal
Field of View, vertical
Source Voltage
EMI Performance
Height
Optical Element Location
Filter Size
www.excelitas.com
Symbol
VDD
Rmin
R
Mmax
Nmax
N
D*
FoV
h
he /ho
X/Y
PYS 3228
2-12
2.2
3.5
-
50
15
77
4.2
/ 0,55
2,65 / 2,4
PYS 3428
2-12
3.5
5.0
-
50
20
77
0,2…1,5
***
4.2
/ 0,55
2,65 / 2,4
Unit
V
kV/W
kV/W
%
µVpp
µVpp
107cm*√Hz/W
V
mm
mm
mm
Remarks
f = 1 Hz
f = 1 Hz
0,4…10Hz/20°C
0,4…10Hz/20°C
1Hz/ 1Hz BW
unobstructed
unobstructed
47 KO, 20°C
25


Part Number PYS3428
Description Pyrodetectors
Maker Excelitas
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