Features:
PH
* 1 to 5 points calibration with automatic recognition for USA, NIST and DIN buffers.
* Automatic electrode diagnosis shows the pH slope and offset.
ORP
* 1 point offset calibration allows adjusting the displayed value to a known standard.
* Relative and absolute millivolt modes ensure the reliable ORP measurements.
Ion Concentration
* 2 to 5 points calibration, including the 8 concentration points can be selected.
* Direct ion concentration readout simplifies the measurement process.
* Automatic electrode diagnosis shows the calibration points and slopes.
* Selectable concentration units (ppm, mg/L, mol/L, mmol/L) and ionic valency.
General Features:
* Automatic temperature compensation ensures accurate readings over the entire range.
* Auto-Read function senses and locks the measurement endpoint.
* Calibration due alarm prompts user to calibrate the meter regularly.
* Auto-Power Off effectively conserves battery life.
* Setup menu allows setting the number of calibration points, resolution, stability criteria, temperature unit, date and time, etc.
* Reset function automatically resumes all settings back to the factory defaults.
* Expanded memory stores or recalls up to 500 data sets.
* USB communication interface is easy to transfer data to PC.
* Multi-mode power scheme (batteries, power adapter and USB port) ensures that using the meter smoothly.
Optional Ion Selective Electrodes:
Ammonium (NH4+ ), bromide (br -), cadmium (Cd2+ ), calcium (Ca2+ ), chloride (Cl-), cupric (Cu2+ ), cyanide (Cn -), fluoride (F-), Iodide (I-), lead (Pb2+), nitrate (NO3 -), potassium (K+ ), silver (Ag+ ), sodium (Na +), sulphide (S2-) and ammonia (NH3 )
Accessories:
* PH electrode * Temperature probe * PH buffer solutions (pH4.01/7.00/10.01)
* Carrying case
Technical Parameters:
| Model | PH-320 | PH-321 | |
| pH | pH Range | -2.000~20.000pH | / |
| pH Accuracy | ±0.002pH | / | |
| Resolution | 0.1, 0.01, 0.001 pH, Selectable | / | |
| Calibration Points | 1~5 points | / | |
| pH Buffer Options | USA (pH1.68/4.01/7.00/10.01/12.45),
NIST (pH1.68/4.01/6.86/9.18/12.45), DIN (pH1.09/4.65/6.79/9.23/12.75) or 2 custom buffers |
/ | |
| ORP | mV Range | -1999.9-1999.9mV | |
| Relative mV Range | -1999.9-1999.9mV| / | ||
| mV Accuracy | ±0.2mV | ||
| Resolution | 0.1,1mV, Selectable | ||
| Calibration Points | 1 point (Only for Relative mV mode)/ | ||
| Ion | Ion Concentration Range | 0.001 ~19999ppm, mg/L, mol/L (Refer to the range of ISE) | |
| Ion Concentration Accuracy | ±0.5% F.S (Monovalent),±1% F.S (Divalent) | ||
| Calibration Points | 2~5 points | ||
| Calibration Solutions | 0.001, 0.01, 0.1,1,10, 100,1000,10000(ppm, mg/L, mol/L) | ||
| Temperature | Temperature Range | 0~105°C/32~221°F | |
| Temperature Accuracy | ±0.5°C/±0.9°F | ||
| Resolution | 0.1°C/0.1°F | ||
| Offset Calibration | 1 point, reading ±10°C | ||
| Other
Specifications |
Temperature Compensation | 0~100°C, manual or automatic | |
| Stability Criteria | Low or high | ||
| Calibration Due Alarm | 1 to 31 days or off | ||
| Slope/Offset Display | Yes | ||
| Hold Function | Manual or auto-endpoint | ||
| Auto-Off | 10, 20 or 30 minutes after last key pressed | ||
| Memory | 500 data sets | ||
| Communication Interface | USB | ||
| Connector | BNC, 3.5 mm jack socket | ||
| Display | Custom LCD (80*60 mm) | ||
| Power Requirements | 3*1.5V AA batteries or DC5V power adapter | ||
| Battery Life | Approximately 150 hours (Turn off the backlight) | ||
| Dimensions(W*D*H) | 170*85*30mm | ||
| Package Size(W*D*H) | 475*155*350mm | ||
| Net Weight | 300g | ||
| Gross weight | 2kg | ||
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