APERA INSTRUMENTS / PH700-WW / AI5012

Bring dirty-liquid samples
to a purpose-built bench setup.

PH700-WW pairs the PH700 meter with the LabSen 333 pH/temperature electrode for collected wastewater, suspensions, emulsions and slurries. Its POM body, open junction and nonrefillable polymer reference distinguish this configuration from a general-water bench kit.

Choose it for laboratory testing of suitable dirty liquids. This is a bench station for samples brought to the instrument, not an inline process monitor or a meter designed for immersion.

Open contact for difficult liquids

The open junction is designed for samples that can clog conventional junctions. It is a practical electrode-selection difference, not a promise that residues will never build up.

POM body, protected sensing area

The black POM housing surrounds the measuring end for routine sample handling. The sensing element still needs careful immersion, cleaning and protection from impact or abrasive solids.

No reference-refill routine

LabSen 333 uses a nonrefillable polymer reference. Routine care focuses on clean sample contact and correct external wet storage, rather than adding electrolyte to an internal reservoir.

Collected wastewater

Bring representative samples to a stable bench position for pH checks. Follow the applicable collection and handling procedure so the measured aliquot represents the water being assessed.

Suspensions and slurries

An open-junction option for suitable solids-bearing liquids. Check the solids load, abrasion risk and consistency; not every dense sludge will provide adequate contact.

Emulsions and mixed liquids

Use where the liquid matrix suits the electrode materials and method. An emulsion application does not establish blanket compatibility with solvents or strongly reactive formulations.

Measure the sample.
Do not let carryover define it.

Connect blue BNC to pH/mV and black RCA to TEMP. LabSen 333 includes the temperature sensor, so no separate temperature electrode is needed. Position it with the supplied holder and keep the meter body clear of splashes.

Calibrate with clean standards before testing, using at least two points before first use. Begin at the neutral point of the selected buffer series. Rinse thoroughly between standards and dirty samples, taking care not to return contaminated liquid to a buffer bottle.

Use a representative aliquot and immerse the sensing area appropriately. Wait for a stable reading under the chosen method. The included probe is rated 0–80°C; automatic compensation does not authorize exposure above that rating or make strong chemistry, very hot samples or pure-water work suitable.

Maintain the storage vial,
not an internal refill reservoir.

After use, rinse off suspended solids and other residue. Keep the electrode wet in its closed storage vial with 3M KCl AI1107. Refresh contaminated soaking solution rather than carrying sample contamination into the next session.

The storage liquid is outside the electrode. Do not attempt to refill the polymer reference with KCl. Distilled or deionized water is useful for rinsing but should not replace the specified long-term storage solution.

An open junction still requires cleaning. Follow the LabSen 333 instructions for contaminant removal, reconditioning and recalibration, and keep the connectors dry. Inspect for damage when response deteriorates rather than assuming the protective body makes the glass sensing element unbreakable.

Bench electronics, local records.
Not a computer-export workflow.

PH700 supports 1-3 pH calibration points and 50 manually saved sets shared across pH/mV. The instrument display range is 0-14.00 pH with selectable 0.01/0.1 pH resolution and stated ±0.01 pH ±1 digit accuracy; these do not establish unrestricted probe/matrix accuracy.

M+ saves a stable result and RM recalls it. No documented USB/PC export, automatic interval recording, date/time field or certified audit trail is promised. Optional ORP needs a separate appropriate ORP electrode; the supplied pH electrode in mV mode gives its pH signal, not ORP.

Signal processing is one part of the method.

This manufacturer electronics illustration refers to the PH700 instrument. Appropriate electrode selection, calibration and sample handling still govern the result. It does not establish extra logging/export features or a separately tested performance guarantee.