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pH متر مدل HQ440 ساخت کمپانی هک آمریکا
Laboratory
two channel multi meter for pH, ORP,ISE, Conductivity, TDS,
Resistivity, Salinity and LDO. Instrument with electrode holder, without
electrodes.
- Have confidence in your readings!
- Optimised handling
- User friendly
- Fully GLP compliant communication and documentation
- Reliable O2 results with minimum effort
The digital meter/electrode system HQD combines reliability, flexibility and ease of use. Interchangeable INTELLICAL electrodes are recognised automatically and store all relevant data.
| Accuracy | ORP: 0.1 mV |
| Auto-buffer recognition | pH: Colour-coded: 4.01, 7.00, 10.01 IUPAC: 1.679, 4.005, 7.000, 10.012, 12.45 DIN: 1.09, 4.65, 9.23 User-defined custom buffer sets Conductivity: Demal (1D / 0.1D / 0.01D); Molar (0.1M / 0.01M / 0.001M); NaCl (0.05%; 25μS/cm; 1000μS/cm; 18mS/cm); Standard sea water; User defined |
| BOD5/CBOD resolution | Available when integrated with Hach WIMS BOD Manager software |
| Backlight | Included |
| Benchtop | Yes |
| Cable resistance correction | Digital - not needed |
| Calibration curves display | Calibration summary data logged and displayed |
| Calibration intervals/alerts/reminder | 2 hours to 7 days |
| Casing IP rating | IP54 |
| Communication | Direct to PC (Bi-directional) via USB virtual serial port |
| Compliance | CE |
| Conductivity accuracy | ± 0.5 % in 1 μS/cm to 200 mS/cm range |
| Conductivity measurement range | 0.01 μS/cm to 200 mS/cm |
| Conductivity resolution | 5 digits with 2 digits after decimal point |
| Custom calibration standards | User-defined standard sets |
| DO measurement range | 0.00 to 20.0 mg/L DO |
| DO resolution | 0.01 mg/L or 0.1 % DO saturation |
| Data Storage | Automatically store in "press to read" mode and interval measurement mode. Manually store in "continuous read" mode. |
| Data logger | Download via USB connection to PC or flash stick. Automatically transfer entire data log or as readings are taken. |
| Data storage | 500 results |
| Digital (intelligent) electrode inputs | 2 channel |
| Dimensions (H x W x D) | 86 mm x 175 mm x 234 mm |
| Display | Continuous measurement or "press to read" mode available with averaging function for LDO measurement. |
| Display | Backlit Graphical LCD Display readings from one or two probes Simultaneous readings from two probes (HQ440d only) pH: pH, mV, temperature Conductivity: Conductivity, TDS, salinity, resistivity, temperature LDO: dissolved oxygen, pressure, temperature LBOD: dissolved oxygen, pressure, temperature ORP/Redox: mV, temperature ISE: Concentration, mV, temperature |
| Display type | 240 x 160 pixel Backlit Graphical LCD |
| Environmental conditions: relative humidity | 90 % relative humidity (non-condensing) |
| Environmental conditions: temperature | 5 to 45 °C |
| Fixed buffer selection | IUPAC standards (DIN 19266), Technical buffer (DIN 19267), 4-7-10 series, or user defined |
| ISE direct measurement | Yes |
| ISE electrode calibration | Electrode specific - see electrode user instructions |
| Inputs | M12 digital (2) for INTELLICAL electrodes |
| Internal result storage capacity | 500 results |
| Language user interfaces | Selectable: English, French, German, Italian, Spanish, Danish, Dutch, Polish, Portuguese, Turkish, Swedish, Czech, Russian |
| Length | 235 mm |
| ORP electrode calibration | Predefined ORP standards (including Zobell's solution) |
| ORP measurement range | -1500 to 1500 mV |
| Operating Interface | Keypad |
| Operating error messages | Full text messages |
| Outputs | Integrated USB type A (USB flash memory device, printer, keyboard); integrated USB type B (PC) |
| PC Data Transfer Software | Free download |
| Power Requirements (Voltage) | 7 V |
| Pressure compensation | Automatic |
| Printer | As optional accessory |
| Resistivity resolution | digits max. |
| Resolution | 0.1 |
| Resolution | 3 digits max. |
| Result ID | Time stamp, user ID, sample-ID, etc. |
| Salinity measurement range | 0 to 42 g/kg |
| Salinity resolution | 0.01 ppt |
| TDS measurement range | 0.0 to 50.0 mg/L |
| Temperature accuracy | ± 0.3 °C |
| Temperature compensation | Automatic, off, manual (auto correction is parameter dependent) Automatic Temperature compensation for pH |
| Temperature range | -10 to 110 °C |
| Temperature resolution | 0.1 °C |
| Warranty | 3 years |
| Water Resisitance | Meter Casing: Spray-resistant and dust resistant (IP54) |
| Weight | 0.850 kg without batteries |
| mV accuracy | ± 0.1 mV |
| mV measurement at stable reading | 5 stabilisation settings |
| mV measurement range | -1500 to 1500 mV |
| mV resolution | 0.1 mV |
| null | Not linear (natural waters DIN 38404 & EN ISO 7888 or NaCL), linear coefficient, no compensation |
| pH Measurement at stable reading | 5 stabilisation settings |
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