Hach gives portable measurement flexibility and ease of operation with its HQd meter and full suite of interchangeable IntelliCAL™ lab and field probes, including 12 probe types in 6 different parameters.

When switching between parameters on the HQd meter, the operator simply plugs the probe into the meter. The system does the rest, automatically recognizing the testing parameter and recalling the calibration history, which unlike competitor models, is stored in the probe. Operating the HQd requires little to no training due to its intuitive menu structure and guided measurement and calibration methods.

• HQ40d Dual-Input Digital Multiparameter Meters:
• The HQ40d Dual-Input Digital Multi-Parameter Meter offers true Plug and Play operation with IntelliCAL pH, conductivity, and dissolved oxygen (LDO) probes.
• Plug in any two IntelliCAL probes and get simultaneous measurement, simultaneous readout! "Smart" meters store probe serial numbers, calibration history, user ID, time, date and location of readings.
• All data (up to 500 data points) can be accessed using a simple menu-driven interface with intuitive icons. Transfer GLP/ISO data effortlessly to a PC or USB flash stick.
• HQ30d Single-Input Digital Multiparameter Meters:
• The HQ30d Digital Multi-Parameter Meter offers true Plug and Play operation with IntelliCAL pH, conductivity, and dissolved oxygen (LDO) probes. Plug in any one IntelliCAL probe and get rapid measurement! "Smart" meters store probe serial numbers, calibration history, user ID, time, date and location of readings.
• All data (up to 500 data points) can be accessed using a simple menu-driven interface with intuitive icons.
• HQ14d Single-Input Digital Conductivity Meter:
• The HQ14d Digital Conductivity Meter features one probe port for use with any of Hach's IntelliCAL conductivity probes. "Smart" meters store probe serial numbers, calibration history, user ID, time, date and location of readings.
• All data (up to 500 data points) can be accessed using a simple menu-driven interface with intuitive icons.
• HQ11d Single-Input Digital pH Meter:
• The HQ11d Digital pH Meter features one probe port for use with any of Hach's IntelliCAL pH probes. "Smart" meters store probe serial numbers, calibration history, user ID, time, date and location of readings.
• All data (up to 500 data points) can be accessed using a simple menu-driven interface with intuitive icons.
• IntelliCAL Probes: Overview
• IntelliCAL pH Probes
• IntelliCAL pH probes measure both pH and temperature. Standard gel-filled and liquid-filled (refillable). Standard IntelliCAL pH probes are waterproof for 24 hours fully immersed to a maximum depth of 3 meters. The rugged gel-filled IntelliCAL pH probe is waterproof for 24 hours fully immersed to a maximum depth of 30 meters, and features stainless steel reinforced cable and stainless steel body with a polymer shroud to protect the probe from the rigors of field use.
• Probes include color-coded probe clips. Standard probes measure 7" (17.8 cm) and weigh 0.02 lbs. (9.1 g) (probe only). Rugged probes measure 8.5" (21.6 cm) and weigh 1.26 lbs. (0.57 kg) (probe only).
• IntellliCAL Conductivity Probes
• IntelliCAL conductivity probes feature 4-pole graphite design and measure both conductivity and temperature. Standard IntellliCAL conductivity probes are waterproof for 24 hours fully immersed to a maximum depth of 3 meters. The IntelliCAL rugged conductivity probe is waterproof for 24 hours fully immersed to a maximum depth of 30 meters, and features stainless steel reinforced cable and stainless steel body with a polymer shroud to protect the probe from the rigors of field use.
• Probes include color-coded probe clips. Standard probes measure 7" (17.8 cm) and weigh 0.02 lbs. (9.1 g) (probe only). Rugged probes measure 8.5" (21.6 cm) and weigh 1.26 lbs. (0.57 kg) (probe only).
• IntelliCAL LDO Dissolved Oxygen Probes
• Using patented Hach Luminescent Dissolved Oxygen technology, IntelliCAL LDO probes measures LDO (mg/L) and temperature. Standard IntellliCAL LDO probes are waterproof for 24 hours fully immersed to a maximum depth of 3 meters. The IntelliCAL rugged LDO probe is waterproof for 24 hours fully immersed to a maximum depth of 30 meters, and features stainless steel reinforced cable and stainless steel body with a polymer shroud to protect the probe from the rigors of field use.
• Probes include color-coded probe clips. Standard probes measure 7" (17.8 cm) and weigh 0.02 lbs. (9.1 g) (probe only). Rugged probes measure 8.5" (21.6 cm) and weigh 1.26 lbs. (0.57 kg) (probe only).

HQ40d Dual-Input Digital Multi-Parameter Meter:
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Power
4 AA batteries; Battery life: > 200 hours
AC/DC power connection included

Display
Simultaneous readings from two probes
Display Languages: English, French, German, Italian, Spanish  (selectable)
pH Probes: pH, mV, temperature
Conductivity Probes: selected parameter, temperature correction, temperature
LDO Probes: dissolved oxygen, pressure, temperature

Data Memory
500 data points

Data Storage
GLP/ISO compliant reading data stored with calibration details. Calibration details and check standard readings documented as events in log. Automatically store in "press to read" mode and interval measurement mode. Manually store in "continuous read" mode.

Data Export
Download via USB connection to PC or flash stick. Automatically transfer entire datalog-or as readings are taken.

Temperature Correction/Compensation
Off, automatic, and manual (correction is parameter dependent)

Display Lock Function
Continuous measurement or "press to read" mode (available with averaging function for LDO measurement)

Automatic pH Buffer Recognition
Choose from 3 sets:
Color-coded: 4, 7, and 10 pH
IUPAC: 1.679, 4.005, 7.000, 10.012
DIN: 1.09, 4.65, 9.23

Keyboard
External PC keyboard connector

Water Resistance
Meter Casing: 1 meter submersion for 30 minutes (IP67)

HQ30d Single-Input Digital Multi-Parameter Meter:
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Power
4 AA batteries; Battery life: > 200 hours
Optional AC/DC power available

Display
Display readings from one probe
Display Languages: English, French, German, Italian, Spanish (selectable)
pH Probes: pH, mV, temperature
Conductivity Probes: selected parameter, temperature correction, temperature
LDO Probes: dissolved oxygen, pressure, temperature

Data Memory
500 data points

Data Storage
GLP/ISO compliant reading data stored with calibration details. Calibration details and check standard readings documented as events in log. Automatically store in "press to read" mode and interval measurement mode. Manually store in "continuous read" mode.

Temperature Correction/Compensation
Off, automatic, and manual (correction is parameter dependent)

Display Lock Function
Continuous measurement or "press to read" mode (available with averaging function for LDO measurement)

Automatic pH Buffer Recognition
Choose from 3 sets:
Color-coded: 4, 7, and 10 pH
IUPAC: 1.679, 4.005, 7.000, 10.012
DIN: 1.09, 4.65, 9.23

Water Resistance
Meter Casing: 1 meter submersion for 30 minutes (IP67)

HQ14d Digital Conductivity Meter:
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Power
4 AA batteries; Battery life: > 200 hours
Optional AC/DC power

Display
Display readings from one probe
Display Languages: English, French, German, Italian, Spanish (selectable)
Conductivity Probes: selected parameter, temperature correction, temperature

Data Memory
500 data points

Data Storage
GLP/ISO compliant reading data stored with calibration details. Calibration details and check standard readings documented as events in log. Automatically store in "press to read" mode and interval measurement mode. Manually store in "continuous read" mode.

Temperature Correction/Compensation
Automatic

Display Lock Function
Continuous measurement or "press to read" mode (available with averaging function)

Automatic Standard Recognition
Choose from 11+ custom sets

Water Resistance
Meter Casing: 1 meter submersion for 30 minutes (IP67)

HQ11d Digital pH Meter:
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Power
4 AA batteries; Battery life: > 200 hours
Optional AC/DC power

Display
Display readings from one probe
Display Languages: English, French, German, Italian, Spanish (selectable)
pH Probes: pH, mV, temperature

Data Memory
500 data points

Data Storage:

GLP/ISO compliant reading data stored with calibration details. Calibration details and check standard readings documented as events in log. Automatically store in "press to read" mode and interval measurement mode. Manually store in "continuous read" mode.

Temperature Correction/Compensation
Off/Automatic

Display Lock Function
Continuous measurement or "press to read" mode (available with averaging function)

Automatic pH Buffer Recognition
Choose from 3 sets:
Color-coded: 4, 7, and 10 pH
IUPAC: 1.679, 4.005, 7.000, 10.012
DIN: 1.09, 4.65, 9.23

Water Resistance
Meter Casing: 1 meter submersion for 30 minutes (IP67)

IntelliCAL pH Probes
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pH
Range: 0 to 14 pH
Resolution:
HQ40d Meter: 0.1/0.01/0.001 selectable
HQ30d Meter: 0.1/0.01 selectable
HQ11d Meter: 0.1/0.01 selectable

mV
Range: ±1500 mV
Resolution:
HQ40d Meter: 0.1 mV
HQ30d Meter: 1 mV
HQ11d Meter: 1 mV

Temperature
Range: -10.0 to 110.0 °C
Resolution: 0.1 °C

IntelliCAL Conductivity Probes:
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Conductivity
Range: 0.01 µS/cm to 200 mS/cm
Resolution: 0.01 µS/cm
(5 digits, maximum)

Resistivity
Range: 2.5 ohm.cm to 49 Mohm.cm
Resolution: 0.1 ohm.cm
(5 digits, maximum)

Salinity
Range: 0 to 42 g/kg or ppt
Resolution: 0.01 ppt

Total Dissolved Solids
Range: 0.0 to 50.0 mg/L
Resolution: 0.1 mg/L

Temperature
Range: -10.0 to 110.0 °C
Resolution: 0.1 °C

IntelliCAL LDO Dissolved Oxygen Probes:
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Luminescent Dissolved Oxygen (LDO)
Range: 0.00 to 20.00 mg/L (0 to 200%)
Resolution: 0.01 mg/L
Elevation limitation 5000 m (16,400 ft.), maximum

Temperature
Range: -10.0 to 110.0 °C
Resolution: 0.1 °C