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a -�+�a.¢Y,xMUM <br /> �°. <br /> 9 <br /> ES ENGINEERING-SCIENCE <br /> ecus'.,;=ration, tzen set t..e i_q__d c��strl �i'sPiav by adjustzn <br /> �'e `-?AN- .:oa• :scr. ..e =?AN' rrco L: place then detacz the <br /> jos``= badder. <br /> 4. iecneex zerj. <br /> 5- Record results MC the calibrar-Lon tj logaacK. <br /> In general. the ambient Operating caage of temperatures fol: t►ae <br /> Pharovac-r,:P is 4-430C (32-110 F). The manu€act:arer does not recommend <br /> use of the Plsotavac aur%Lde Chis range although successful use has been <br /> reported. When the Photovac to taken E_am a Tow temperature into a <br /> regLon a= sigiisr temperature and humidity, a f-'!= of conaensauan wLl1 <br /> `-arm on the W -lamp. '-his ^.+L11 result _Z a temporary loss of response <br /> Which Ls best remedied by allowLnq the iaatr=cnt to recover while <br /> rrnnsnq the Dump. To avoid this, the, manu4_aeturer suggests that the <br /> user allow the iaxtrument to eqt�i>,ihrate to ambient temperature before : <br /> turning it on. Recommended maintenance for the Photavac-TTP is listed <br /> below: <br /> aautlne maintenance for TIF• is absolutely minimal; all that Ls <br /> (z required is to Ensure the bactnrics remain close to full charge (durimq <br /> c-. <br /> periods of non^wse) and that the 'inlet filter is kept clear of dust <br /> axrt:eles. Tho filter used is of tie 15 stainless s terl carz__dga <br /> housed in a stainless steel cylinder permanently attached to the front <br /> I.a of the inst==ant. <br /> `•- eccasioaally, lass of TIP, sensitivity may require servicing of the <br /> detector and this is almost always 1+=;red to simply cleaning or chanq- <br /> w tag the lamp/i= cell assembly. <br /> Periodically, it will. be necessarys <br /> to install new, r-chargeab_n <br /> batteries, whirls can bo expecud to last for one year of heavy use. <br /> The plastic parts OE - <br /> =P* can be cleaned wik.`L a damp cloth and mild <br /> detergent, necessary. 00 NOT use any arganic soluants a9 r-he Elnish <br /> may be damavrd. <br /> - -1.11ter Reolacement <br /> TIP■'s response can be tested wtmh and without _,._ alter and is <br /> the response varies by more thaa 10 percent, the filter should to ce- <br />