Laserfiche WebLink
Although different brands of conductivity meters vary, calibration procedures are similar for A <br /> of them. A generalized calibration procedure follows: i <br /> l: Turn on the instrument,check the battery, and allow to warm up if necessary. <br /> 2. Rinse the conductivity probe and temperature.Probe with deioniized water then place in <br /> the standard solution. At Forward Landfill conductivities are usually within 500 to 1500 <br /> umhos/l,therefore the 1000 umhos/l solution is appropriate to use. <br /> 3. Adjust the meter for the appropriate conductivity scale and ternpemture then read the <br /> conductivity. <br /> 4. If required use.the "calibrate" adjustment on the meter to correct.the inttr„menl to read <br /> the correct conductivity. <br /> The calibration process will be recorded on a conductivity calibration-1-09-- Copies of calibration-- <br /> logs for-each individual-instrument are-kept in-a:binder.-at-the of ce: The logs-are reviewed <br /> periodically to assess whether theinstrument is becoming more difficult to calibrate .and <br /> therefore needs adjustment by the manufacturer,or if new probes am- <br /> required. <br /> Turbidity Meter <br /> Turbidity measurement is subject to variations due to instrument drift. For this reason turbidity <br /> meters must be calibrated before and after sampling on each day and at least once more during <br /> the day. - To calibrate a turbidity meter-the instrument reading is adjusted to read correctly for <br /> solutions with a standard turbidity. <br /> Standard turbiditysolutions are mixed fresh, according to package instructions, for each <br /> sampling event Standard solutions for turbidity are commercially available. These standards <br /> are mvh.ased fresh and ed.after shelf life has expired. Shelf lives vary depending on the <br /> bt=d of standards used, UpreVrepared solution is used, tho: expiration date of the solution will <br /> be noted on the cah'bration log. <br /> Although different brands•of turbidity meters vary, calibration procedures are for all of <br /> them. A generalized calibration procedure follows: <br /> 1. Turn on the instrument check the battery,and allow to warm up if necessary: <br /> r <br /> 949-Fo IN23 1 OR325 A4 Jnly 14,200 <br />