在實驗室中，對于一些精度要求不高的情況，我們可以考慮使用筆式PH計，筆式PH計是采用很新微功耗積體電路設(shè)計，性能優(yōu)越，廣泛應(yīng)用于理化分析,環(huán)保，食品，化妝品，水族館，養(yǎng)殖業(yè)，無土栽培…等等行業(yè)。

儀器校準(zhǔn)：打開PH筆頂蓋，調(diào)校調(diào)節(jié)器

1.       將電極放入PH7.0的緩沖液中，調(diào)校右邊調(diào)節(jié)器，使儀器顯示為7.0。

2.       將電極放入清水中清洗。

3.       將電極放入PH4.0的緩沖液中，調(diào)校左邊調(diào)節(jié)器，使儀器顯示為4.0。

維護(hù)：

l          PH測試筆在出廠時已校準(zhǔn)，可直接使用。（長期久置不用，請于使用時重新校準(zhǔn)）

l          測量后，電極應(yīng)用干凈水清洗。

l          當(dāng)儀器顯示屏變暗時，請更換電池及注意電池正負(fù)極方向。

使用：

1.       將電極保護(hù)蓋取下，打開電源開關(guān)。

2.       將電極放入測試液體中，儀器便會顯示準(zhǔn)確PH讀數(shù)。

3.       測量完畢，關(guān)閉電源，套上電極保護(hù)蓋。

PH PEN/Tester Operation Manual

PH PEN/Tester adopted with latest micro-electronic circuit design, to provide high performance, steady and accuracy measurement. This PEN is widely applies in work of chemical analysis, environmental protection, food, hygiene, aquaculture and horticulture, etc.

Instrument Calibration

1.          Soak the electrode in 7.0pH/4.0pH solution. If the display does not show the right pH value, adjust the unit to the right measurement. (Remove the protection cap and adjust the knob. Right knob for 7.0pH / Left knob for 4.0pH).

2.          Clean the electrode with distilled water.

3.          Soak the electrode into buffer solution at 4.0pH. If the display does not show the right pH value then adjust the left point to make it displays 4.0pH.

4.          If it is necessary please repeat procedure 1. to 3.

Maintenance

l          If the instrument has not been operating for a long time, it should be recalibrated before use.

l          Usually clean the electrode with distilled water after use.

l          Replace the batteries when the display became dim.

Operating

1.          Remove the protection cap and turn on the power.

2.          Place the electrode in sample solution until the result show on the display.

3.          Turn off the power, clean the electrode and cover the protection cap after test.

更多關(guān)于筆式PH計的知識請聯(lián)系合肥卓爾儀器儀表有限公司的技術(shù)人員。