Hydrolab HL4 Multiparameter Water Quality Analyzer, -5-50℃, Hach (CAT#: STEM-AI-0696-YJL)

Hydrolab HL4 Multiparameter Water Quality Analyzer, -5-50℃, model Hydrolab HL4 is manufactured by Hach. Hydrolab HL4 multi-parameter water quality analyzer is a new multi-parameter, wide-range water quality monitoring instrument, which can be used for online and portable monitoring of water quality in different water bodies such as surface water, groundwater, source water, sewage outlet, drinking water, ocean and so on. Monitoring parameters include dissolved oxygen, pH, ORP (REDOX potential), electrical conductivity (salinity, total dissolved solids, resistance), temperature, depth, turbidity, chlorophyll a, blue-green algae, Rhodamine WT, ammonium/ammonia ions, nitrate ions, chloride ions, a total of 13 parameters. HL4 is small and light, can measure 7 parameters at the same time, more suitable for groundwater and portable measurement.

Temperature
Range: -5 to 50°C
Accuracy: ± 0.10°C
Resolution: 0.01°C
Conductivity
Range: 0 to 100 mS/cm
Accuracy: ±0.5 % of reading + 0.001 mS/cm
Resolution: 0.001 mS/cm
pH
Range: 0 to 14 units
Accuracy: ± 0.2 units
Resolution: 0.01 units
dissolved oxygen
Range: 0 to 60 mg/L
Accuracy: ± 0.1 mg/L when ≤8 mg/L
Resolution: ± 0.2 mg/L when 8…20mg/L
ORP
Range: -999 to 999mV
Accuracy: ± 20mV
Resolution: 1mV
Self-cleaning turbidity
Range: 0 to 3000 NTU
Accuracy: ± 1% up to 100 NTU, ± 3% from 100 to 400 NTU, ± 5% from 400 to 3000 NTU
Resolution: 0.1 up to 400 NTU, 1.0 from 400 to 3000 NTU
Ammonium/Ammonia ion
Range: 0 to 250 mg/L-N
Accuracy: ± 10 % of reading or ± 2 mg/L, whichever is greater
Resolution: 0.01 mg/L-N
Nitrate ion
Range: 0 to 250 mg/L-N
Accuracy: ± 10 % of reading or ± 2 mg/L, whichever is greater
Resolution: 0.01 mg/L-N
Chloride
Range: 0 to 18000 mg/L
Accuracy: ± 10 % of reading or ± 5 mg/L, whichever is greater
Resolution: 0.01mg/L
Depth 0-25, 100, 200 meters
Range: 0 to 25, 100, 200 meters
Accuracy: ± 0.05 meters (25, 100 meters probe), ± 0.1 meters (200 meters probe)
Resolution: 0.01m (25, 100m probe), 0.1m (200m probe)
Chlorophyll a
Range: 0 to 500 μg/L
Precision: Linearity: 0.998R² Serial dilution of Rhodamine WT
Resolution: 0.01μg/L
Freshwater blue-green algae
Range: 0 to 40000 ppb
Accuracy: Linear: 0.999R²
Resolution: Serial Dilution of Phycocyanin Pigment from Digestive Enzymes Diluted in DI Water
the host
Outer Diameter: 4.44 cm
Length: 77.78 cm (with battery compartment and extended sensor guard)
Weight (typical configuration): 2.2 kg (with battery compartment)
Maximum depth: 200 meters
Operating temperature: -5 to 50°C
Battery supply: 1 D-type battery
Interface: RS232, SDI-12, RS485
Memory: 4GB

Lightweight design, easy to carry
Compact size allows installation in tight spaces (e.g. 2" wide or diameter slots or bushings)
Rugged and durable, suitable for long-term field monitoring
4GB internal memory available for logging data
Optional internal battery pack
Flexible sensor selection, various sensors can be selected according to the application

Quickchem 8500 Flow Injection Analysis System, 2-250 uL (CAT#: STEM-AI-0692-YJL)
TX1315 Portable Water Quality Biological Toxicity Detector, +5~45℃ (CAT#: STEM-AI-0693-YJL)
SL1000 Multi-channel Portable Water Quality Analyzer, +5- 50℃ (CAT#: STEM-AI-0695-YJL)
Hydrolab HL7 Multiparameter Water Quality Detector, -5-50℃ (CAT#: STEM-AI-0697-YJL)