Pooltest 9光度计

Photometersshould be regularly cleaned to ensure that your instrument is reading correctly and is not affected by dust or water marks.

要清洁紧凑型或亮叶光度计，请将少量的防静电清洁泡沫放入绒毛的自由布上并擦拭仪器。

For multiparameter photometers, you should clean several parts of your instrument. To clean, place a small amount of anti- static cleaning foam on to a lint free cloth and wipe the instrument.

1. 样品架。
   The first image shows the surface around the sample holder, all visible marks on this area should be removed
2. 外部光学底板。
   将仪器转过来并撤消仪器底座上的两个螺钉，如第二个图像所示。轻轻擦拭LED附近的弯曲区域和相对侧的平坦区域。
3. 内光学底板
   基板内侧的污染可以迁移到校准管上，导致划伤，损坏标准。如果不能从基板上取出标记，应装配新的底板。
   当重新安装或更换底板时，必须确保拧紧螺钉，以便设置标准是正确的高度。未能这样做会导致结果受损。
   

Check standards allow you to confirm that your instrument is reading results correctly.

The recalibration process is a highly technical process which is carefully controlled. To recalibrate your instrument, it must be returned to Palintest.Contact your Palintest representativefor more information.

Monopersulfate可以与DPD总chlori反应ne test causing a false high total test, and thus, a false combined chlorine reading. The DPD Oxystop tablet eliminates this interference allowing an accurate measurement of total chlorine. This should be used prior to the DPD #3 tablet. The DPD Oxystop tablet may also be used in exactly the same manner with the DPD XT tablets.