Ademco - 687 Voltage Regulator

No 687 VOLTAGE REGULATOR No 687 Voltage DC 8.5 Dialer to 600 ma at 6V DC nominal 15V DC source with designed power devices a nominally as Nos 669 or 670 with No 612 No 679 be supplied No 687 as No 89 12 may not be used be a filtered source unfiltered The No 687 may be used a power a 6V DC communicator which be used provide which directly dialer also a 6V DC Some controls others may not have sufficyent a digital correcting No 687 given pro permit I ON be powered 687s more 687s amount current used with be supplied at 6V DC wilt No 687 supplying NOT connect more one device more ma separate ma 6V outputs or more No 687 single Diagram WIRING without No 687 provided unit No 687 which which will connected be slipped No 687 will heat when supplying NOTE under OPERATION mounting when chosen metal closed aid heat No 687 687s Diagram or 21 No 687 will with will warm steady DC output SPECIFICATIONS normal as No 687 supplying POWER S lRCE FILTERING TEST TEXT CAPACITOR S REQ I TOR MICROFARAD DC DC MA MAX POLAR I TY NOT POWER FROM UNFILTERED SUPPLY 0UTPUT TO POWER CONNECTION OF EOUIPMENT BEING SUPPLIED 1 WIRING CONNECTIONS SINGLE OUTPUT l DC MAX SEPARATE LOADS DC M MAX 687 687 DC 15V DC POLARITY NOT POWER FROM UNF I LTERED SUPPLY TO POWER CONNECTION OF EQUIPMENT BEING SUPPLIED NOT CONNECT BOTH I OUTPUT LEADS TO SUPPLY A SINGLE LOAD 2 WIRING CONNECTIONS TWO NOTE mounting No 687 will occur current approximately unit not permit will output be drop volts Try which used metal No 687 by as multiple No 687 outputs possible beinq No 687s shownin between more NOT connect SOURCE FILTERING TEST non Ademco No 687 as a power conductedtotest not have sufficient digital correct when necessary Diagram No 687 with steady AC voltmeter multimeterj 0.33 microfarad meter meter connected observed No 687 series with of or 1OV AC meter meter No 687 necessary no deflection check seen meter meter deflection seen adequate meter may be removed further on meter sliqhtly No 687 must be Step 4 or more No 687 meter shown this microfarad place SPECIFICATIONS 374 15V DC not use an unfiltered DC nominal ma standby nput Current Current DC nominal ma maximum No 687 should Caution be used which power directly DC on Page 213