OHAUS ST10 Starter pH Pen Meter Instruction Manual
- June 14, 2024
- Ohaus
Table of Contents
OHAUS ST10 Starter pH Pen Meter Instruction Manual
After more than a century of perfecting the art of measurement through our
durable weighing products, OHAUS precision is now available in a line of
portable geochemistry products that provides accurate measurement of pH, ORP,
conductivity, TDS and salinity. ST series pen meters are the economical option
when you are simply looking for meters that are easy to use and provide
accurate measurements.
The pen meters should not be used by Children of age 12 or younger.
Thank you for choosing OHAUS waterproof pen meters. Please read the manual completely before use. This manual serves the following models:
• ST10 (pen pH meter)
First Usage
Condition the pH electrodes by immersing it in pH electrode storage solution for 1 hour before use. If the pH electrode protection cap is dry (may cause white crystals), add storage solution in the cap and soak the pH electrode for 1 hour.
pH Measurement
Remove the protection cap, rinse the pH electrode glass bulb with pure water
(distilled water), and wipe clean. (Glass bulb is fragile, be careful, do not
scratch it.)
- Press button-On/Off turn on the meter.
- Dip the electrode about 2 to 3cm into the test solution(at least 20ml). Stir and wait until the reading stabilized.
- Clean the electrode with pure water after each measurement.
Accuracy
ST10 is 0.1pH resolution and accuracy pen meter. Each ST10 pen meter is factory calibrated.
Maintenance
Clean the electrode after test and cover the protection cap, be sure storage
solution is not dry in the cap.
Harsh samples may short the pen meter life time, such as sticky, dirty or oily
liquids.
The meter use button battery 1.5V (AA)*4 , replace all the batteries when the
display fade or not turn on.
The electrode is replaceable.
Order Information
| Model | Description |
|---|---|
| ST10 | 0.1pH resolution waterproof pen pH meter |
Replaceable electrode:
Electrode pH10 ST
Specification
| Water Proof Pen Meters | ST10 |
|---|---|
| pH range | 0.0 – 14.0 pH |
| Resolution | 0.1pH |
| Accuracy | ± 0.1 pH |
| Battery | 4 x 1.5V |
| Dimension | 183×45×35mm |
| Weight | 105g |
| Auto-off | After 6 min no operation |
| Ambient temperature | 0~50 °C(32-122°F) |
| Materials | ABS |
In conformance with the European Directive 2002/96/EC on Waste Electrical and
Electronic Equipment (WEEE) this device may not be disposed of in domestic
waste.
This also applies to countries outside the EU, per their specific
requirements. Please dispose of this product in accordance with local
regulations at the collecting point specified for electrical and electronic
equipment. If you have any questions, please contact the responsible authority
or the distributor from which you purchased this vice. Should this device be
passed on to other parties (for private or professional use), the content of
this regulation must also be related. Disposal instructions in Europe are
available online at
europe.ohaus.com/europe/en/home/support/weee.aspx.
Thank you for your contribution to environmental protection. This equipment
has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential
installation. This equipment generates uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the
following measures: Reorient or relocate the receiving antenna, increase the
separation between the equipment and receiver or consult the dealer or an
experienced radio/TV technician for help.
1.888.610.7664
www.calcert.com
sales@calcert.com