Pyrodetectors
Pyroelectric detectors for GAS MONITORING
Pyrodetectors
For Gas Monitoring And Measuring
PYS 3228, PYS 3428 – Dual-Cha...
Description
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
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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
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