STIL 4785 pH Test Pen Instructions
- May 15, 2024
- STIL
Table of Contents
STIL 4785 pH Test Pen
Product Specifications
- Model: 4785
- Waterproof Class: IP67
- Features: Replaceable Electrode, Large LCD display, Extremely portable
Product Usage Instructions
Instrument Calibration
- 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).
- Clean the electrode with distilled water.
- 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 display 4.0pH.
- If necessary, repeat procedures 1 to 3.
Operating Instructions
- Remove the protection cap and turn on the power.
- Place the electrode in the sample solution until the result shows on the display.
- Turn off the power, clean the electrode, and cover the protection cap after the test.
Maintenance
If the instrument has not been operating for a long time, recalibrate
before use. Clean the electrode with distilled water after use. Replace
batteries when the display becomes dim.
Warranty
The pH pens are warranted to be free from manufacturing defects for 1 year.
The electrodes are warranted for 1 year’s storage. Out of warranty products
will be repaired on a charge basis if repair, adjustment, or replacement is
necessary and has not been due to abuse or misuse within the specified time
period.
FAQ
-
Q: How often should I recalibrate the instrument?
A: If the instrument has not been used for a long time, it should be recalibrated before use. Additionally, recalibration may be needed if you notice inaccurate readings. -
Q: How do I know when to replace the batteries?
A: Replace the batteries when the display becomes dim or if the instrument starts to show signs of low power.
pH Test Pen Operation Manual
The 4785 is adopted with latest micro-electronic circuit design, which provides high performance, steady and accuracy measurement. This PEN is widely applied in work of chemical analysis, environmental protection, food, hygiene, aquaculture and horticulture, etc.
Advantage
- Waterproof Class IP67
- Replaceable Electrode
- Large LCD display
- Extremely portable
Specification
- Testing Range: 0.0 – 14.0 pH
- Accuracy: ± 0.1 pH
- Ambient Temperature: 0 – 50 °C
- Battery: LR44 x 4
- Dimension: 170mm x 37mm x 37mm
- Weight: 90g
Instrument Calibration
- 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).
- Clean the electrode with distilled water
- 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.
- If it is necessary please repeat procedure 1 to 3.
Maintenance
- If the instrument has not been operating for a long time, it should be recalibrated before use.
- Usually clean the electrode with distilled water after use.
- Replace the batteries when the display became dim.
Operating
- Remove the protection cap and turn on the power.
- Place the electrode in sample solution until the result show on the display.
- Turn off the power, clean the electrode and cover the protection cap after test.
Warranty
The pH pens are warranted to be free from manufacturing defects for 1 year. The electrodes are warranted for 1 year’s storage. If repair, adjustment or replacement is necessary and has not been the result of abuse or misuse within the time period specified, please return the pen- freight prepaid-and correction will be made without charge. Out of warranty products will be repaired on a charge basis.
STIL 254 rue Foch – 77000 Vaux le Pénil
Ref : 4785