Automatic Buffer Recognition | Yes |
Backlight | Yes |
Barometric Pressure Measurement | Automatic compensation of DO when using an LDO or LBOD probe |
Calibration | 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 |
Calibration Intervals/Alerts/Reminder | Off, selectable from 2 hours to 7 days |
Communication | Integrated USB type A (for USB 2.0 flash memory device, printer,
keyboard) and Integrated USB type B (for PC) |
Compliance Certifications | CE.WEEE |
Conductivity measurement | Yes |
Conductivity Measurement Range | 0.01 µS/cm - 200.0 mS/cm |
Conductivity resolution | 0.01 µS/cm - 0.1 mS/cm upon selected measuring range |
Contents | Meter Only |
Custom Calibration Standards | Yes |
Data Export | Download via USB connection to PC or flash memory device.
Automatically transfer entire data log or as readings are taken. |
Data Memory | 500 records/FIFO |
Data Storage | Automatic, GLP ISO compliant reading data stored with calibration
details. |
Dimensions | 859 x 175 x 235 mm (3.38 x 6.88 x 9.25 in.) |
Display | Detailed mode/Large mode |
Display Type | 440 x 160 pixel LCD with backlight illumination |
DO Measurement Range | 0.1 - 20.0 mg/L (ppm) 1 - 200% saturation |
DO Resolution | 0.1 |
DO sensor calibration | • 100% (water-saturated air (100%) calibration |
• 100% with 0 (water-saturated air (100%) calibration with 0 point |
• mg/L (calibration with a specified dissolved oxygen concentration
(mg/L) solution) |
• mg/L with 0 (calibration with a specified dissolved oxygen
concentration (mg/L) solution with 0 point) |
• Factory (calibration with the default LDO calibration) |
Electrode stand | Optional |
GLP Features | Date; Time; Sample ID; Operator ID |
Instrument | Bench |
IP Rating | IP54 (Resistant to spray of water; Dust-proof) |
ISE Direct Measurement Range | Yes |
ISE Electrode Calibration | 2 - 5 points |
Kit? | No |
Languages | English, French, German, Italian, Spanish, Danish, Dutch, Polish,
Portuguese, Turkish, Swedish, Czech, Russian |
Lock Function | Continuous / Auto-stabilization ("press to read") / At Interval |
Measurement Method | Probe specific programmed method settings |
Model | HQ430D – Multi/1 Channel |
mV Measurement at Stable Reading | Yes |
mV Measurement Range | -3000 |
mV Resolution | 0.1 mV |
Needed Cable Length | NA |
Operating Error Messages | Clear text error messages displayed |
Operating Humidity | 90 % relative humidity (non-condensing) |
Operating Interface | Soft Touch Keypad |
Operating Temperature | 0 - +60 °C (32 - 140 °F) |
ORP Electrode Calibration | Predefined ORP standards (including Zobell's solution) |
Parameter | pH/Oxydo Reduction Potential (ORP) |
Conductivity/Total Dissolved Solid (TDS)/Salinity/Resistivity |
Dissolved Oxygen (DO) |
Biochemical Oxygen Demand (BOD) |
Ion Selective Electrode (ISE): Ammonia, Ammonium, Chloride,
Fluoride, Nitrate, Sodium |
PC Data Transfer Software | HQD Series Meter Data Transfer Utility |
pH Buffer Sets | Color-coded: 4.01, 7.00, 10.01 pH; |
IUPAC: 1.679, 4.005, 7.000, 10.012, 12.45 pH |
DIN: 1.09, 4.65, 9.23 pH |
User-defined custom buffer sets |
pH Electrode calibration | 1 - 3 Calibration points |
Calibration summary data logged and displayed |
pH Measurement Range | 0 - 14 pH |
pH Resolution | Selectable: |
0.001/0.01/0.1 pH |
Printer | Yes, Optional |
Probes included | None |
Resistivity Measurement | 2.5 Ω.cm - 49 MΩ.cm |
Resistivity Resolution | 0.1 |
Salinity Measurement Range | 0 - 42 (ppt) (‰) |
Salinity Resolution | 0.01 (ppt) (‰) |
Sensor A | NA |
Sensor B | NA |
Sensor C | NA |
Sensors | Sensor A: NA |
Sensor B: NA |
Sensor C: NA |
TDS Measurement Range | 0.00 mg/L - 50.0 g/L as NaCl |
TDS Resolution | 0.01 mg/L - 0.1 g/L upon measuring range. |
Temperature Compensation | Automatic Temperature compensation for pH |
Temperature Measurement | °C or °F |
Temperature Range | ‘-10°C - 110 °C |
Temperature Resolution | 0.1 |
Type of measurement | Lab Water Quality applications. |
Weight | 750 g (1.65 lb) without batterie; 850 g (1.87 lb) with batteries |
What's included? | Includes: meter, 4 AA batteries, universal power adapter, USB cable
for data transfer, quick start guide and user manual |