TABLE OF CONTENTS S550 GEN ERAL DE SCRIP TION ......2 BEF ORE MAK ING AD JUST MENTS .......10 S552 GEN ERAL DE SCRIP TION ......2 NEW P520/P522 FRONT PANEL ......10 S556 GEN ERAL DE SCRIP TION ......2 CALI BRAT ING THE S550 ........10 COM PARI SON WITH OTHER MODEL 500 VH’s ...2...
S552 GENERAL DESCRIPTION The S550 uses a Germanium sensor for IR The S552 is for IR sensing only. It is basically an detection like an S511 and uses a high- voltage S550 without a UV capability. The P520 or P522...
The electronics in the S550 is designed using highly reliable surface mount technology. The high pass frequency responses of eight different filters in the S550 and S552 are imple - mented compu ta tionally in a high- performance, CMOS micro con troller inside the viewing heads.
It opening and then tight ening the retaining screw. is recom mended that the IRIS cable be used for all Connect the self- checking signal wire BLK to appli ca tions. Ref er to the diagrams on pages 3 and terminal No.
IRIS MODEL S550 APPLICATION MANUAL The cable wiring on the other end going to the signal. When the sour gas is intro duced and the signal processor is easier to do. The cable should natural gas shut down the flame signal may drop be prepared in a similar way to the plug end off or drop out entirely.
IRIS MODEL S550 APPLICATION MANUAL The S550 and S552 respond to flicker frequencies adjacent or opposing burners so that, with proper 16 Hz and above. They ignore the lower sighting, discrimi nation is predictable. frequencies so it is important to sight the viewing...
IRIS MODEL S550 APPLICATION MANUAL viewing head sight path will greatly improve the detector is used which would be the case for oil or performance, particu larly with regard to discrimi - pulverized coal. nation between flames. Although saturation is less...
S550 on one channel and an S511 on temporary - and then proceed as if the CHAN SEL another, or an S552 on one channel and an S556 input had changed. This method is available for on another, or any combination. Of course, the...
IRIS MODEL S550 APPLICATION MANUAL P522 signal processors will continue to work as 3) Bring the firing rate of the burner to a low fire they have in the past with an earlier 500 series condition. viewing head when the channel with that viewing 4) If the flame relay has not pulled in, adjust the head is selected.
The auto mat ic For further infor mation please call the factory or calibration process is not sacred; it only finds gain contact IRIS Systems Inc. See page 13 for contact values. The user may change these, if he wishes, infor mation.
IRIS MODEL S550 APPLICATION MANUAL stays the same or actually increases, the S550 673 - 637 is saturated. Continue reducing the gain in 573 - 537 steps of 100 until the displayed reading is 473 - 437 reduced. Then set the gain so the reading is in 373 - 337 the 1000 to 1400 range.
IRIS MODEL S550 APPLICATION MANUAL with normal operation. If one says YES to MAINTENANCE IRIS products have been designed to be fail-safe. defaults, then the original default settings are Field preventive maintenance checks should be stored for the selected channel overwriting the pre vious S550 settings for that channel.
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