P9 Series
P911 pH Meter
pH Meter with ±0.02 pH accuracy over (-2 – 19.999)pH, a 5-Inch white backlit LCD screen and 200 stored readings. IP54.
Documentation
Datasheets and manuals are issued per model and revision. Ask for the documents that match the configuration you are considering.
See linked documents| pH — Measuring range | (-2 ~ 19.999)pH |
|---|---|
| pH — Resolution | 0.1/0.01pH |
| pH — Accuracy | ±0.02 pH |
| pH — Input current | ≤2×10⁻¹² A |
| pH — Input impedance | ≥1×10¹² Ω |
| pH — Stability | ±0.002 pH/3h |
| pH — Temperature compensation range | (0 ~ 100)°C, auto/manual |
| mV — Measuring range | -1999.9mV ~ 0 ~ 1999.9mV |
| mV — Resolution | 0.1mV |
| mV — Accuracy | ±0.03% FS |
| Temperature — Measuring range | (-10 ~ 110)°C |
| Temperature — Resolution | 0.1°C |
| Temperature — Accuracy | 5 ~ 60°C: range: ±0.4°C; other range: ±0.8°C |
| Calibration | 1, 2, 3 point |
| Other — Display | 5-Inch white backlit LCD screen |
| Other — Data storage | 200 sets |
| Other — Power | DC 5V/1A |
| Other — Communication connector | Micro USB & Standard USB |
| Working Condition — Environment Temperature | 5 ~ 35 °C |
| Operating conditions — Relative humidity | ≤85% |
| Operating conditions — IP rating | IP54 |
Send your sample type and method, and we will confirm the configuration and current lead time.
Ask about this modelOverview
What this instrument measures, and how it fits the range.
P911 is a pH meter in the P9 Series, with a pH measuring range of (-2 ~ 19.999)pH and a pH accuracy of ±0.02 pH.
Key points
- 5-inch LCD screen with 150° viewing angle for clear reading out of 5 meters.
- Built-in microprocessor chip has intelligent functions such as automatic calibration, ATC, data storage, clock display, USB output, function settings, automatic power-off and low voltage alarm, etc.
- Two USB interfaces for PC connection, battery charging, and data transfer.
- 5mm electrode interface makes it very easy for electrode connection.
- Automatic recognition of different electrodes. The electrode with built-in chip can automatically store and retrieve calibration data after connecting with meter.
- Automatically recognizes 15 buffer solutions across three buffer sets: Europe/USA, NIST and China. Supports one-, two- or three-point calibration.
- Can store 200 sets of data including readings, GLP data, date and time.
- Rechargeable battery can last for 30 hours. Auto power off when no operation in 10 minutes.
Full specifications for this model are listed at the top of this page.
Accessories
Confirm these items before the final quotation. Accessories are listed only where the manufacturer offers them.
Standard accessories
- pH electrode
- Temperature probe
- Buffer solution
- Power adapter
- Manual
Optional accessories
No optional accessories are published for this model. Confirm availability with our team.
Common selection questions
Confirm requirements with our team before the final order.
What accuracy does the P911 offer?
±0.02 pH with 0.01 pH resolution, an input impedance of ≥1×10¹² Ω and a stability figure of ±0.002 pH/3h. That is a bench-grade specification: it suits method development and QC release testing rather than rough field checks.
How many calibration points are available?
One, two or three-point calibration, with automatic or manual temperature compensation across 0–100 °C. Three-point calibration is the usual choice when samples span the full range from acidic to alkaline, because it brackets the measurement.
Can the meter record readings over time?
It stores 200 data sets and connects over Micro USB or standard USB, with a 5-inch backlit LCD and IP54 protection. It is not a continuous logger — for a trace over time, take readings at fixed intervals or use a logging instrument.
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