OHAUS ST10T-B Starter TDS Pen Meter Instruction Manual

OHAUS ST10T-B Starter TDS Pen Meter

Specifications

• Water Proof Pen Meters
• Cond. range: 0.0~199.9 S/cm (ST10C-A), 0~1999 S/cm (ST10C-B), 0.00~19.99 mS/cm (ST10C-C), 0.0-100.0 mg/L (ST10T-A), 0-1000 mg/L (ST10T-B), 0.0-10.0 ppt (ST10S)
• Resolution: 0.1 S/cm (ST10C-A), 1 S/cm (ST10C-B), 0.1 mg/L (ST10T-A), 1 mg/L (ST10T-B), 0.1 ppt (ST10S)
• Accuracy:
  • ST10C-A: ±2% F.S.
  • ST10C-B: ±2% F.S.
  • ST10C-C: ±2% F.S.
  • ST10T-A: ±3% F.S.
  • ST10T-B: ±3% F.S.
  • ST10S: ±3% F.S.
• Battery: 4 x 1.5V
• Dimension: 185x42x37mm
• Weight: 105g
• Auto-off: After 6 min no operation
• Ambient temperature: 0-30°C
• Materials: ABS

Product Usage Instructions

Initial Setup

Before using the ST series pen meter for the first time, follow these steps:

1. Open the battery compartment located at the top of the pen meter.
2. Insert four 1.5V batteries into the compartment, following the polarity markings.
3. Close the battery compartment securely.
4. Remove the protective cap from the electrode.
5. The pen meter is now ready for use.

Measurement Procedure

To measure pH, ORP, conductivity, TDS, or salinity, follow these steps:

1. Turn on the pen meter by pressing the power button located on the front panel.
2. Dip the electrode into the sample solution up to the immersion level mark.
3. Wait for a stable reading to appear on the display.
4. Record the measurement if necessary.
5. Rinse the electrode with clean water and replace the protective cap after use.
6. Turn off the pen meter by pressing and holding the power button for a few seconds.

Calibration

Calibrating the pen meter ensures accurate measurements. Follow these steps to calibrate:

1. Prepare calibration solutions according to the desired range and type of measurement.
2. Turn on the pen meter and dip the electrode into the calibration solution.
3. Press the calibration button and select the appropriate calibration mode (pH, ORP, conductivity, TDS, or salinity).
4. Follow the on-screen prompts to complete the calibration process.
5. Rinse the electrode with clean water and replace the protective cap after calibration.

FAQ:

Q: Can children use the pen meters?

• A : No, the pen meters should not be used by children of age 12 or younger.

Q: Where can I find replaceable electrodes?

• A: The replaceable electrodes for the ST series pen meters are available online at europe.ohaus.com/europe/en/home/support/weee.aspx.

Q: What should I do if the pen meter causes interference to radio or TV reception?

A: If the pen meter causes interference, try one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the receiver.
• Consult the dealer or an experienced radio/TV technician for help.

Q: How can I contact customer support?

• A : You can contact customer support at 1.888.610.7664 or email them at sales@calcert.com.

Q: What is the warranty period for the pen meters?

• A: For information about the warranty, please refer to the warranty card included with the product.

Q: What are the operating temperature limits for the pen meters?

• A : The pen meters can be used within an ambient temperature range of 0-30°C.

Q: How long does the pen meter stay on without any operation?

• A : The pen meter has an auto-off feature that turns off the device after 6 minutes of no operation.
• 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 electrochemistry products that provide accurate measurements of pH, ORP, conductivity, TDS, and salinity.
• ST series pen meters are an 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.

ST10C/ST10T/ST10S pen meters Instruction Manual

• Thank you for choosing OHAUS waterproof pen meters. Please read the manual completely before using it. This manual serves the following models:
• ST10C-A (pen Conductivity meter)
• ST10C-B (pen Conductivity meter)
• ST10C-C (pen Conductivity meter)
• ST10T-A (pen TDS meter)
• ST10T-B (pen TDS meter)
• ST105 (pen salinity meter)

First Usage

• Condition the electrode by rising and immersing it in pure water for 0.5 hours before use.

Conductivity/TDS/Salinity Measurement

• Remove the protection cap, rinse the Conductivity electrode with pure water (distilled water), and wipe clean.
• Press button-On/Off turn on the meter.
• Dip the electrode about 2 to 3cm into the test solution (at least 20 ml). Wait until the reading stabilizes.
• Clean the electrode with pure water after each measurement.

Accuracy

• ST10C/ST10T/ST10S pen meters are factory calibrated.

Maintenance

• Clean the electrode before and after each measurement.
• The meter uses a button battery 1.5V (AA)*4, which replaces all the batteries when the display fades or does not turn on.
• The electrode is replaceable.

Order Information

Replaceable electrodes:

Electrode CT10A ST

Electrode CT10B ST
Electrode CS10C ST

Specification

ppt
Accuracy| ±2.5% FS| ±2.5% FS| ±2.5% FS| ±2.5% FS| ±2.5% FS| ±2.5% FS
Battery| 4 x 1.5V| 4 x 1.5V| 4 x 1.5V| 4 x 1.5V| 4 x 1.5V| 4 x 1.5V
Dimension| 183×45×35mm| 185x42x37mm| 185x42x37mm| 185x42x37mm| 185x42x37mm| 185x42x37mm
Weight| 105g| 105g| 105g| 105g| 105g| 105g
Auto-off| After 6 min no operation| After 6 min no operation| After 6 min no operation| After 6 min no operation| After 6 min no operation| After 6 min no operation
Ambient temperature| 0~50 °C(32-122°F)| 0~50 °C(32-122°F)| 0~50 °C(32-122°F)| 0~50 °C(32-122°F)| 0~50 °C(32-122°F)| 0~50 °C(32-122°F)
Materials| ABS| ABS| ABS| ABS| ABS| 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 device. 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.

FCC

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

Documents / Resources

| OHAUS ST10T-B Starter TDS Pen Meter [pdf] Instruction Manual
ST10T-B, ST10C-B, ST10C-C, ST10S, ST10T-A, ST10C-A, ST10T-B Starter TDS Pen Meter, ST10T-B, Starter TDS Pen Meter, TDS Pen Meter, Pen Meter, Meter
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References

• Calcert

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