Portable pH Meter for Water Testing

Q1: How to replace the electrode head of the SISCO digital pen pH meter?
A1: Replacing the electrode head of the SISCO digital pH pen meter typically involves a few simple steps:

1. Pull off the electrode cap directly, do not rotate to avoid damaging the electrode sensor.
2. Unscrew the electrode fixing ring counterclockwise.
   Pull out the electrode head, do not rotate to avoid damaging the circuit.
3. Align the two electrode grooves and push the electrode head into the main unit.
4. Tighten the electrode fixing ring by rotating it clockwise.
   Put on the electrode cap, do not rotate to avoid damaging the electrode sensor.

Q2: How to calibrate the SISCO digital pH tester?
A2: Calibrating a digital pH tester like the SISCO model typically involves a few steps. Here's a general guide:

1. Calibration is required for first-time use, battery replacement, and electrode replacement to ensure the accuracy of the 
   test. It is recommended to calibrate the meter every 2-4 weeks for optimal accuracy.
2. Buffer solutions should be stored away from light and at low temperatures. Do not reuse buffer solutions, and discontinue use if there are any precipitates or spots in the buffer solution.
3. Rinsing the electrode sensor before immersing it into the next buffer solution each time can improve calibration and testing accuracy.

Q3: How to replace the digital pH meter battery?
A3: Replacing the battery in a digital pH meter typically involves the following steps:

1. Turn counterclockwise to remove the top cover.
2. Push open the battery compartment cover.
3. Remove the old battery and insert the new one (recommended to use 7# AAA alkaline dry battery).
4. Close the battery compartment cover.
5. Turn clockwise to tighten the top cover.

Tips: Can I use a digital pH meter for medical purposes?

Can the portable pH meter measure liquids other than water?

Yes, this handheld digital pH meter can measure the pH of many types of aqueous solutions, not just water. It works well with:

• Tap water and drinking water
• Aquarium and fish tank water
• Hydroponic nutrient solutions
• Pool and spa water
• Beverages (e.g., juice, tea, beer)
• Laboratory solutions and buffer liquids

However, to ensure accurate results:

• Avoid measuring strong acids or bases beyond the meter’s range.
• Avoid highly viscous, oily, or corrosive liquids that may damage the electrode.
• Always rinse the electrode with clean water after each measurement to prevent residue buildup.

So while it’s designed primarily for water quality testing, this digital pH meter is versatile enough for many liquid testing applications when used correctly.

Thank you for buying industrial test and measurement equipment on SISCO.com, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.

What is covered?

SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.

What is not covered?

• Product purchased from anyone other than a SISCO store or a SISCO authorized reseller.
• Expendable parts.
• Routine cleaning or normal cosmetic and mechanical wear.
• Damage from misuse, abuse or neglect.
• Damage from use of parts other than SISCO approved.
• Damage from use outside the product’s usage or storage parameters.
• Damage from use of parts not sold by SISCO.
• Damage from modification or incorporation into other products.
• Damage from repair or replacement of warranted parts by a service provider other than a SISCO authorized service provider.
• Damage caused by the application environment not meeting the product usage requirements and the failure to perform preventive maintenance.