USER MANUAL

PORTABLE pH METER WITH EXTENDED RANGE MODEL: SM105

pH & Temperature Meter

GENERAL OPERATION:

• The meter is supplied complete with a 9V bat- tery. Remove the battery compartment cover on the back of the meter and install the battery while paying attention to its po- larity.

• Connect the MA914BR/1 probe to the meter.

• Turn the instrument on by pressing the ON/OFF key. At start-up, the LCD shows the percentage of the remaining battery life for a few seconds, and then the current mea- surement.

•Always remove the electrode protective cap before taking any measurement. If the electrode has been left dry, soak the tip (bottom 2.5 cm) in M10000 rinse so- lution for a few minutes to reactivate it.

•Immerse the tip (2.5 cm) of the probe into the sample and stir gently.

•Read the pH value when the clock symbol stops blinking.

•The temperature reading can be displayed in °C or °F unit; to select the desired scale, press and hold the “ON/OFF” key until “TEMP” and the current temperature unit are displayed on the secondary LCD. Use the “SET” button to select the unit and then press the “ON/OFF” key a couple of times to return to normal mode.

•To activate the HOLD function, keep pressed the “HOLD” key. The measured value will be frozen on the display and the “HOLD” message appear on the sec- ondary LCD.

•After measurements, switch the meter off by pressing the “ON/OFF” key. The “OFF” message appears on the LCD; release the button.

Notes:

•Before taking any measurement, make sure that the meter has been calibrated (the “CAL” tag is displayed on the left lower corner of the LCD).

•Always replace the electrode protec- tive cap after use with a few drops of storage solution.

CALIBRATION PROCEDURE:

It is recommended to recalibrate the meter at least once every three weeks.

A)Preparation: Buffer solutions:

1.pH 7.01 / 6.86 (MA9007 / MA9006)

2.pH 4.01 (MA9004) for acidic calibra- tion (pH < 7) or pH 10.01 / 9.18 (MA9010 / MA9009) for alkaline range (pH > 7).

Use two beakers for each buffer solu- tion: one beaker for rinsing the probe, the other for calibration. In this way the cross contamination between solutions is minimized.

B) Procedure:

•Select the calibration buffer set: press and hold the “ON/OFF” key until the LCD shows “TEMP”. Press again this key and the “BUFF” message will ap- pear; then select the desired buffer set with the “SET” key: “7.01 pH BUFF” (for standard solutions: pH 4.01, 7.01, 10.01) or “6.86 pH BUFF” (for NIST solutions: pH 4.01, 6.86, 9.18). Press the “ON/OFF” key again to exit.

•Remove the protective cap, then im- merse the probe in the first buffer so- lution (7.01 or 6.86 pH).

•Press and hold the “ON/OFF” key until “CAL” is displayed on the lower LCD.

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Milwaukee SM105 user manual PH & Temperature Meter, General Operation, Calibration Procedure
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SM105 specifications

The Milwaukee SM105 is a powerful solution designed for a variety of applications, particularly well-suited for professionals in construction and woodworking. This portable compound miter saw offers a cutting-edge experience, enabling users to achieve precision and accuracy with each cut.

At the heart of the SM105 is a robust motor that delivers exceptional power and efficiency. With a 15-amp motor, it can effortlessly handle tough materials, providing an impressive no-load speed that ensures rapid cutting performance. This high-performance motor is designed to maintain consistent torque, even under load, enhancing the overall cutting capability.

One of the standout features of the Milwaukee SM105 is its advanced miter adjustment system. The saw boasts a dual bevel feature, allowing users to make bevel cuts in both left and right directions without the need to flip the workpiece. This flexibility simplifies complex cutting tasks and is ideal for crown molding and other intricate joinery projects. The miter detents are user-friendly and provide quick adjustments to common angles, which saves valuable time during setup.

The SM105 features a large, durable base that provides stability while cutting. This robust design minimizes vibrations, ensuring smoother operation and cleaner cuts. The table surface is designed for easy alignment and consistent material support, which is essential for achieving accuracy in longer cuts.

Safety is a top priority, and the Milwaukee SM105 incorporates several features that enhance user protection. It comes with a blade guard that automatically retracts during operation, preventing accidental contact with the blade. The safety switch is conveniently located, ensuring users can quickly power off the tool if needed.

Another notable characteristic of the SM105 is its portability. Weighing in at a manageable level, it features a carry handle that allows for easy transport between job sites. The saw can be set up quickly, allowing users to focus on their work rather than wasting time on assembly.

In summary, the Milwaukee SM105 miter saw stands out with its powerful 15-amp motor, dual bevel capability, and user-friendly miter adjustments. Its strong construction, safety features, and portability make it an exceptional tool for professionals looking to achieve precise cuts in various materials, solidifying its place in the toolbox of carpenters and builders alike.
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