Little Shop of Coral
HM Digital Waterproof pH/Temp Meter
HM Digital Waterproof pH/Temp Meter
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PH-200: Waterproof Professional Series pH/Temp Meter
The PH-200 is a professional grade pH/Temp meter ideal for all pH testing water. With its advanced microprocessor it provides highly accurate dependable readings in such applications as hydroponics, purification applications, wastewater regulation, aquaculture, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment, wine, coffee, and agriculture.
FEATURES
Measures pH and Temperature
Auto-ranging three point calibration with digital fine tuning
Includes storage solution in a sponge embedded in a clear cap
Waterproof housing (IP-67 rating)
Simultaneous temperature display
Measurement Range: 0-14 pH
Digital automatic calibration (one point), with digital fine tuning
Automatic Temperature Compensation (ATC)
Auto-off function, data-hold function and low-battery indicator
Display: large and easy-to-read LCD screen includes simultaneous temperature reading
Replaceable Sensor (model SP-P2)
Factory Calibrated: The PH-200 meter is three-point checked and factory calibrated to pH 7.0. It can be re-calibrated to any point in its range with digital calibration using the push buttons.
Includes a cap, batteries, lanyard, and pH 7.0 buffer
SPECIFICATIONS
pH Range: 0 - 14
Temperature Range: 0-55 °C; 32-130 °F
Resolution: 0.01 pH;Temperature resolution is 0.1 °C/F
Accuracy: +/- 0.1 pH; Temperature accuracy is +/-2%
Calibration: Digital automatic calibration (one point) with digital fine tuning
Minimum EC/TDS: 5 uS/10 ppm
Electrode: Replaceable glass sensor and reference tube electrodes
Housing: IP-67 Waterproof (submersible; floats)
Power source: 3 x 1.5V button cell batteries (LR44 or equivalent; included)
Dimensions: 18.5 x 3.4 x 3.4 cm (7.3 x 1.3 x 1.3 inches)
Weight: 96.4 g (3.4 oz)
UPC: 891144000021
Recommended accessories: pH Electrode Storage Solution (PH-STOR) and pH Calibration Buffers (PH-BUF). Note that the meter includes single use packets of the storage solution and a pH 7.0 buffer. This is enough in the beginning, but additional storage solution and calibration buffers will be necessary in the future (exactly when depends on individual usage and needs). The storage solution and pH buffers (while in powder form) do not expire.
FAQs
The sponge in my cap is dry. Is this okay? Yes. During shipping, it is possible for the solution to leak or dry. This will not damage your meter, and it's perfectly fine, since the cap was on and it was in the box. Prior to use, pour a small amount of the electrode storage solution (from the Mylar packet) into the sponge so that it's moist. Put the cap back on and allow the sensor to soak for 15 minutes standing upright. Additional storage solution is available for purchase. (NOTE: The sponge is simply for retaining the storage solution so that it doesn't spill. It should be kept in the cap.)
How often do I need to calibrate? All pH meters should be calibrated anywhere from before every use to at least once a month. The frequency of calibration depends on usage and application, but you should calibrate at least once per month for proper results and a longer lifespan of your meter. A free packet of pH 7.0 buffer is included with the meter. Additional pH buffers for calibration are available for purchase. Please consult the user's guide for calibration instructions.
I use my meter for hydroponics. Does it need any special care? Yes. Nutrients in a hydroponics reservoir will quickly adhere to the sensor and throw off readings. It is very important to rinse the sensor in distilled water after each use. Otherwise, you'll just be measuring the nutrients that are already on the sensor.
Can I use the PH-200 for testing distilled, DI or RO water? No. The meter is not designed for pure or very low TDS water. The water needs at least 10 ppm of TDS (µS of EC) to pick up a reading.
NOTE for owners of the PH-200: Your PH-200 is shipped with a small amount of storage solution in the cap. The sponge should be moist (not dripping wet), but it is possible that this solution can leak out during shipping. If you have received a PH-200 with the cap (or sponge) dry, simply refill it with the enclosed extra storage solution and allow it to soak, standing upright, for one hour. Your meter will be perfectly fine and the small extra bottle is included for this purpose. Never refill the cap with distilled water and never use the cap for testing purposes.
Collapsible content
LIGHT
LOW: Place coral at the bottom of the tank. Depending on the type, coral may need to be placed off sand and therefore mounted on a ceramic disc of piece of rock.
MEDIUM: Place coral at mid-range of the tank. Best placed/glued on top of a rock scape at mid-range height.
HIGH: Place coral from mid range to just below water level. SPS coral are shallow growing so they require and are able to tolerate intense light.
FLOW
LOW: Most soft coral do well with a small, gentle pulse. There are certain corals that can even be placed in areas of indirect flow, meaning places aside a rock structure or set into a entrance to a cave style space.
MEDIUM: Many LPS types of coral prefer medium pulse current. Most Euphyllia or corals that have more tissue structure connected to their skeleton, don’t like to be in a high flow area like the direct flow of the wave pump.
HIGH: Similar to high light, SPS enjoy being in some heavy current. Most LPS and SPS that branch encrust or plate prefer high flow that simulates the top water waves.
SKILL
ENTRY: While some may say beginner level, "Entry" is a good term to be used when starting out in the world of corals and marine life. Prior to adding livestock, you want to ensure that your reef has the proper parameters including zero levels of ammonia and nitrite. Seeing traces of nitrate in your waters is a good sign - just keep them at a lower level of 2ppm to 10ppm. Maintaining correct temperature and salinity are a huge factor to stable parameters. Starting to monitor your PH, alkalinity, calcium and magnesium is a great habit to get into to keep a successful reef.
While some soft coral don’t require too much light, having a proper reef light that puts out the proper pars is very important. You'll also want to have a good amount of flow and protected rock areas, as placing corals in their happy spot is ideal for success.
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