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HQ Series Portable Multi-Parameter Meter
A robust and intuitive range of portable meters, instilling confidence in reporting and accepting a wide variety of probes.
The HQ Series multi-parameter meter was designed specifically for water industry professionals who want to perform a wide range analysis in both field and lab environments.
The HQ Series multi-parameter meter incorporates a truly field rugged, field-ready solution with a large & bright, colour display, all in a IP67 rated handset. Visual step-by-step operating guidance make using and calibration this instrument easy. The HQ Series multi-parameter meter secures, simplifies, and accelerates the complete measurement process for field users.
Three models are available:
• HQ1000 Series: 1 x probe input
• HQ2000 Series: 2 x probe input
• HQ4000 Series: 3 x probe input
Over fifty different probe types can be connected to the HQ Series Portable Multi-Parameter Meter (see Optional Accessories tab), so users can customise a single handset to many jobs.
Common probe types include:
• pH
• Dissolved Oxygen (DO)
• Oxidation-Reduction Potential (ORP)
• Biochemical Oxygen Demand (LBOD)
• Conductivity (EC)
• Temperature (Temp)
• Total Dissolved Salts (TDS)
• Salinity (SAL)
• Nitrate (N-ISE)
• Ammonium (A-ISE)
• Fluoride (F-ISE)
• Chloride (C-ISE)
HQ Series handsets are NOT sold with probes as standard.
Probes must be purchased separately.
- FEATURES
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Performing a successful calibration has never been so simple
Most measuring issues are due to incorrect calibration procedures. With our illustrated, step-by-step on-screen calibration and troubleshooting procedures, water quality professionals can succeed every time.
Deliver your daily activity in just a few clicks
Whether you are at your facility or working in the field, the Hach® HQ Series portable meter ensures your data will be safely transferred via USB or optional Bluetooth*. Take advantage of additional data validation when you connect your field meter to Claros Data Management software.
Sensors designed for every application
We offer standard laboratory and rugged field Intellical smart sensors available with the HQ Series to measure a wide variety of parameters including Total Dissolved Solids (TDS), Optical Dissolved Oxygen (DO), Biochemical Oxygen Demand (BOD), Temperature, Conductivity, and pH. Intellical smart probes are automatically recognised by HQ meters, retain calibration history and method settings to minimise errors and setup time. They incorporate proven technology to deliver superior accuracy and response times – even when measuring challenging samples or challenging operating environments.
Peace of mind: Hach service and support will be there for you
Our Technical Support, Field Service, and Central Service Teams work together with over 80 years of electrochemistry expertise to help you maximise instrument uptime, ensure data integrity, maintain operational stability, and reduce compliance risk. Never feel alone when you need support.
- Specs
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Accessories Included No 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 definedCalibration Intervals/Alerts/Reminder Off, selectable from 2 hours to 7 days Certifications CE, FCC, ISED, RCM, KC, ETL Verified: US DOE/ NRCan Energy Efficiency, RoHS Conductivity measurement: Temperature correction None; Linear; NaCl Non-Linear Natural Water. Conductivity Measurement Range Yes Custom Calibration Standards Yes Data Export USB connection to PC or USB storage device (limited to the storage device capacity) Data Memory 100,000 data points Data Storage Automatic in Press to Read Mode and Interval Mode. Manual in Continuous Read Mode Dimensions (H x W x D) 63 mm x 97 mm x 220 mm Display Up to 3 parameters at a time, dependent on HQ model Display Lock Function Continuous / Auto-stabilisation (“press to read”) / At Interval Display Type 640×480 Colour TFT DO Measurement Range 0.1 – 20.0 mg/L (ppm), 1 – 200% saturation DO Resolution 0.1 Enclosure Rating IP67 (with battery compartment installed) GLP Features Date; Time; Sample ID; Operator ID, Calibration Inputs 3 Instrument Portable ISE Direct Measurement Range Yes ISE Electrode Calibration Yes Kit? Meter only Languages English, Chinese – Simplified, Spanish, French, German, Italian, Japanese, Turkish, Dutch, Portuguese (PT & BR), Korean, Danish, Swedish, Polish, Norwegian, Hungarian, Greek, Finnish, Czech, Romanian, Croatian, Bulgarian, Slovak, Lithuanian, Estonian, Slovenian, Russian Measurement method Probe specific programmed method settings Model 3 models available mV Measurement at Stable Reading Yes mV Measurement Range Yes mV Resolution 0.1 mV Operating Error Messages Clear text error messages displayed Operating Humidity 90% (non-condensing) Operating Interface Soft Touch Keypad Operating Temperature 0 – 60 °C ORP Electrode Calibration Predefined ORP standards (including Zobell’s solution) Parameter pH, Conductivity, TDS, Salinity, Dissolved Oxygen, ORP, ISE pH Buffer Sets Colour-coded: 4.01, 7.00, 10.01 pH;
IUPAC: 1.679, 4.005, 7.000, 10.012, 12.45
DIN: 1.09, 4.65, 9.23
User-defined custom buffer setspH Electrode calibration 1 – 3 Calibration points
Calibration summary data logged and displayedpH Measurement Range 0 – 14 pH pH Resolution Selectable:
0.001/0.01/0.1 pHPower supply Rechargeable lithium-ion battery 18650 (internal)
Class II, USB power adapter: 100 – 240 VAC, 50/60 Hz input; 5 VDC at 2 A USB power adapter output (external)Probes included None Probe Type Intellical Standard Laboratory or Rugged Field Protection Class IEC Class III (SELV (Separated/Safety Extra-Low Voltage) powered); external Region Australia, Argentina, Brazil, India, South Africa, Korea Salinity Measurement Range 0 – 42 (ppt) (‰) Salinity Resolution 0.01 (ppt) (‰) Sensor A None Sensor B None Sensor C None Software available Claros Storage conditions -20 – 60 °C, max. 90% relative humidity (non-condensing) TDS Measurement Range 0.00 mg/L – 50.0 g/L NaCl TDS Resolution 0.01 mg/L – 0.1 g/L upon measuring rangeTemperature Compensation Automatic Temperature compensation for pH Temperature Measurement °C or °F Temperature Resolution 0.1 °C Type of measurement Field Measurements Warranty 36 months Weight 570 g (Meter only) What’s included? HQ4300 Portable Multi Meter, 3 channels, includes manuals, Li-Ion batteries, USB charger with power cable. - Models
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Various HQ Series models are available depending on your requirements.
Please consult with Aqualab before ordering.Available models include:
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HQ4100 Portable Multi-Parameter Meter (1 sensor input), without sensors
Product number# LEV015.97.4100A -
HQ4200 Portable Multi-Parameter Meter (2 sensor input), without sensors
Product number# LEV015.97.4200A -
HQ4300 Portable Multi-Parameter Meter (2 sensor input), without sensors
Product number# LEV015.97.4300A
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HQ4100 Portable Multi-Parameter Meter (1 sensor input), without sensors
- Downloads
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Manuals 
HQ Series User Manual
DOC022.97.80629_1ed.pdfDownload now Additional files 
HQ Series Handset Selection Guide
DOC052.53.25026.Oct20_HQ.pdfDownload now HQ Series Probe Selection Guide (IntelilCAL)
Download now HQ Series Probe Selection Guide (Red Rod)
Download now HQ Series Probe Selection Guide (General)
Download now HQ Series pH Measurement in Low-ionic Strength Samples
Download now HQ Series Cleaning & Maintenance of pH probes
Download now - Optional Accessories
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HQ Series Intellical PHC101 Low Maintenance Gel Filled pH Sensor (1m cable - Lab use)
Product number# PHC10101 -
HQ Series Intellical PHC101 Low Maintenance Gel Filled pH Sensor (3m cable - Lab use)
Product number# PHC10103 -
HQ Series Intellical PHC101 Field Low Maintenance Gel Filled pH Sensor (5m cable - Field Rugged)
Product number# PHC10105 -
HQ Series Intellical PHC101 Field Low Maintenance Gel Filled pH Sensor (10m cable - Field Rugged)
Product number# PHC10110 -
HQ Series Intellical PHC101 Field Low Maintenance Gel Filled pH Sensor (15m cable - Field Rugged)
Product number# PHC10115 -
HQ Series Intellical PHC101 Field Low Maintenance Gel Filled pH Sensor (30m cable - Field Rugged)
Product number# PHC10130 -
HQ Series Intellical LDO101 Luminescent Dissolved Oxygen (LDO) Sensor (1m cable - Lab use)
Product number# LDO10101 -
HQ Series Intellical LDO101 Luminescent Dissolved Oxygen (LDO) Sensor (3m cable - Lab use)
Product number# LDO10103 -
HQ Series Intellical LDO101 Luminescent Dissolved Oxygen (LDO) Sensor (5m cable - Field Rugged)
Product number# LDO10105 -
HQ Series Intellical LDO101 Luminescent Dissolved Oxygen (LDO) Sensor (10m cable - Field Rugged)
Product number# LDO10110 -
HQ Series Intellical LDO101 Luminescent Dissolved Oxygen (LDO) Sensor (15m cable - Field Rugged)
Product number# LDO10115 -
HQ Series Intellical LDO101 Luminescent Dissolved Oxygen (LDO) Sensor (30m cable - Field Rugged)
Product number# LDO10130 -
HQ Series Intellical CDC401 4-Poles Graphite Conductivity Sensor (1m cable - Lab use)
Product number# CDC40101 -
HQ Series Intellical CDC401 4-Poles Graphite Conductivity Sensor (3m cable - Lab use)
Product number# CDC40103 -
HQ Series Intellical CDC401 4-Poles Graphite Conductivity Sensor (5m cable - Field Rugged)
Product number# CDC40105 -
HQ Series Intellical CDC401 4-Poles Graphite Conductivity Sensor (15m cable - Field Rugged)
Product number# CDC40110 -
HQ Series Intellical CDC401 4-Poles Graphite Conductivity Sensor (15m cable - Field Rugged)
Product number# CDC40115 -
HQ Series Intellical CDC401 4-Poles Graphite Conductivity Sensor (30m cable - Field Rugged)
Product number# CDC40130 -
HQ Series Intellical MTC101 Low Maintenance Gel Filled ORP/RedOx Sensor (1m cable - Lab use)
Product number# MTC10101 -
HQ Series Intellical MTC101 Low Maintenance Gel Filled ORP/RedOx Sensor (3m cable - Lab use)
Product number# MTC10103 -
HQ Series Intellical MTC101 Low Maintenance Gel Filled ORP/RedOx Sensor (5m cable - Field Rugged)
Product number# MTC10105 -
HQ Series Intellical MTC101 Low Maintenance Gel Filled ORP/RedOx Sensor (10m cable - Field Rugged)
Product number# MTC10110 -
HQ Series Intellical MTC101 Low Maintenance Gel Filled ORP/RedOx Sensor (15m cable - Field Rugged)
Product number# MTC10115 -
HQ Series Intellical MTC101 Low Maintenance Gel Filled ORP/RedOx Sensor (30m cable - Field Rugged)
Product number# MTC10130 -
HQ Series Intellical LBOD101 Biochemical Oxygen Demand Sensor (BOD) Sensor for BOD Measurements (1m cable - Lab use)
Product number# LBOD10101 -
HQ Series Intellical BOD Bottle Cap (6pk)
Product number# 241906 -
HQ Series Intellical Acrylic BOD Bottle Stoppers (25pk)
Product number# 2943900 -
HQ Series Intellical Disposable BOD Bottles, 300 mL (100pk)
Product number# 2943100 -
HQ Series Intellical Color Coded Probe Clips
Product number# 5818400 -
HQ Series Intellical Universal Probe Stand
Product number# 8508850 -
HQ Series Intellical Standard Case (Lab probes)
Product number# LEZ015.99.A001A -
HQ Series Intellical Field Case (Rugged Probes)
Product number# LEZ015.99.A002A -
HQ Series Intellical Probe Cable Depth Markers (Rugged Probes)
Product number# 5828610 -
HQ Series Intellical Protective Glove for Portable HQ Series Meter
Product number# LEZ015.99.A004A -
HQ Series Intellical Kick Stand and Hand Strap for Portable HQ Series Meter
Product number# LEZ015.99.A003A
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HQ Series Intellical PHC101 Low Maintenance Gel Filled pH Sensor (1m cable - Lab use)
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