Laserfiche WebLink
meter to soun<L This point is uvWly clearly visible on the probe. If it is not visible it should k <br />located by dipping dIx probe WO a water container w1we dx contact <br />marked. The total length of the water level meter should correspond with the length of the <br />measuringtape.oaMdon, theindividualmarkson the a cableh ! dcorrespond with the <br />correct footage.ass. match the measurings* then the difference <br />• ua <br />should be calculatedas apercentage, 0 -foot cable measures i :i <br />individualMwM9v==t$ with thO'cable Should -then be MWt!PliO-d bY 0.98 to oorrict or th r. U the <br />• s Marks ! aced correctly and am notetheir deviation, the <br />instrumentyr • be r . <br />If the water Ityel indicator is ♦ t is of a cable then c�libration. ! •r r a s <br />er <br />year. If them is a discrtl=cy, the conversion factor will be marked direcdy on the, instrumcnt <br />Water level indiiators constru6ted of tape am more subject to stretching and should be calibrated <br />! moadLs.+. r with th*ss►w <br />as r: s f data for ! instrument - be—rccordedand • s binder at thet-ofrice' :s !...; <br />reference. Tbc most recent calibration rasuLts will also ba recorded in the ttamicians field note,.,, <br />Thert is no spocific formfor water level indicator <br />...!: calibration. <br />VH is stbject to significant variations ciue to tcMperatyre, buffedng capacity of the watcr, and <br />histrume€tt drift, For this reason pH mcters.must be- calibrated before after each.. <br />day 2nd at least once more during the day. To t libMe a pH mater the instruaumt reading is <br />adjusted to read co=cdy for solutions with a standard PFL <br />Standard solutions are t ixedaccording to pac ors,. ling cvcat. <br />S solutions or for FH , 7, .d 10 am COMmerci4y avagable. e standards <br />,are purchased fresh and.di ed 4ff= shelf life bas cxPire SW lives i on die <br />b of if solution is used. the `on date of tb,-. solution will <br />be noted ott 'thi calibration log. <br />Although diffemt brands of VH m . Calibration PMccduM am sh`far for aU of th <br />A gen=alized calibration promduie follows: <br />i. <br />Turn ott the insu=eut, d=k the battery, and mow to wum up if r7.. <br />9. - <br />3e949- S23 tzM fJ tog <br />2000CWO <br />I <br />K <br />