Multi-parameter Sensor

Multi-parameter Sensor

Greenspan’s multi-parameter sensor can simultaneously measure up to 6 water quality parameters in one portable probe.

By combining multiple sensors we offer an affordable method of gathering a complete understanding of your water’s quality.

Depending on your requirements multi-parameter sensors can be tailored fitted with multiple variations of sensor so you only monitor what matters to you.

Multi-paramter sensors come in two different sizes:
MP = 47mm Ø main body
MQ = 65mm Ø main body

The MP series can have up to 3 sensors recording 4 parameters (EC records Temperature). The MQ series can measure up to 6 parameters with 5 sensors.

multi-parameter sensor

pH | Dissolved Oxygen | Electrical Conductivity

Muliti-parameter sensor

Depth (submersible pressure) | Electrical Conductivity | Turbidity

Available Water Quality Parameters

DISSOLVED OXYGEN | TURBIDITY | ELECTRICAL CONDUCTIVITY | OXYGENATION REDUCTION POTENTIAL | PH | DEPTH (SUBMERSIBLE PRESSURE)

Australian Made

Greenspan has made our range of water quality sensors in Australia for over two decades. Our experience has allowed us to design sensors that reliably deliver accurate data in the harshest environments Australia has to offer.

With every Greenspan water quality sensor, you receive; local support from our experienced sales and service technicians, local repairs and recalibration from our Melbourne-based engineers, and access to local spares from our factory in Melbourne. No other brand of water quality sensor can offer such exceptional service.

LOCAL
REPAIR

LOCAL
SUPPORT

LOCAL
SPARES

Multi-parameter Sensor Specifications

SPECIFICATIONVALUES
SUBMERSIBLE PRESSURE SENSOR
Measurement technique½˝ Ceramic Capacitance Sensor
Standard Pressure ranges availableGauge 2.5, 5, 10, 20, 40, 75, 100 m Absolute 20, 40, 75, 100 m
Max Over Range4 times Full Scale range.
Other Ranges availableYes – Calibration charge may apply – refer sales office
Overall Accuracy (combined
linearity, hysteresis and
repeatability)
± 0.1% Full Scale range
Long term stability0.2% full scale per annum
ResolutionDepth – 0.001 m , Temp – 0.05°C
PH SENSOR
Measurement TechniqueGel-filled glass electrode with internal Ag/AgCl reference; Field replaceable electrode
Sensor Range0–14 pH
Resolution0.001 pH
Accuracy± 0.2 pH
ORP SENSOR
Measurement TechniquePlatinum electrode with internal Ag/AgCl reference; Field replaceable electrode
Sensor Range–1000 mV – ±1000 mV
Resolution1 mV
Accuracy± 2% full scale
ELECTRICAL CONDUCTIVITY SENSOR & TEMPERATURE
Measurement TechniqueToroidal conductivity
Standard EC ranges available0–2000 µS/cm, 0–5000 µS/cm, 0–10000 µS/cm, 0–20000 µS/cm, 0–60000 µS/cm,
0–70000 µS/cm.
Other Ranges are availableYes – Up to 200,000 µS/cm
Overall Accuracy (combined
linearity, hysteresis and
repeatability)
±1 % full-scale range
ResolutionEC – 1 µS
Temperature Range–5 Deg C – +60 Deg C
TURBIDITY SENSOR
Measurement Technique90° Infra-red (ISO7027)
Standard ranges available (factory
set)
100 NTU, 400 NTU 1000 NTU
Resolution0.1 NTU, 0.2 NTU, 0.3 NTU
Linearity± 1%, ± 1%, ± 3%
Temperature Coef cient± 0.2% /°C ± 0.1% /°C ± 0.1% /°C
Calibration StandardAPS AEPA polymer solutions 0, 100 NTU, 400 NTU, 1000 NTU
OPTICAL DISSOLVED OXYGEN
Measurement TechniqueOxygen fluorescence detection method
Sensor Range0–200% saturation (0-20 ppm)
Resolution0.1%
AccuracyOxygen 1% of reading or 0.02 ppm whichever is greater
Response Time90% of DO change within 60 seconds
COMMON VALUES
Cable typePolyurethane sheathed cable, OD 8 mm, with 3 mm vent tube, moulded entry, HS7
connector for serial connection.
Standard Cable lengths10, 20, 30, 50, 100, 150, 200 m
Non-standard Cable LengthsYes – (Extra cable moulding time may be required)
Power supply8 to 30 V DC (at sensor), or on-board battery pack (option)
Power ESD protection2000 volts
Current consumptionSleep ± 0.2 mA, logging 20 mA, communicating 30 mA (consumption rates vary
depending on parameters selected)
Sensor warm up timeUp to 5 seconds
On-board battery pack (option)Housing screws to sensor size (OD × L) 47 mm × 250 mm
Battery capacity9 × Lithium AA (3.6Volt) – Total capacity 5.2 Ah @ 10.8 v
Typical field life (battery pack)Over 12 month’s remote operation @ 30 minute data logging.
Internal data loggerNon-volatile, battery backed RAM with real time clock
Memory size4 Mb capacity, with user selectable wrap function
Measuring unitsUser definable (Metric and Imperial US units)
Data storage250,000 readings. (Typically 5 minute data for >12 months)
Logging frequencyUser selectable from 1 second up to once per day
Dimensions (L × OD)MP47 – 355 mm × 47 mm (14˝ × 1.78˝)
MQ65 – 355 mm × 65 mm (14˝ × 2.5˝)
–Optional End Mount Battery pack – 300 mm × 47 mm
WeightMP47 – 550 g plus cable weight (665g per 10m length)
MQ65 – 650 g plus cable weight (665g per 10 m length)
Wetted materialsAcetal, ceramic, polyurethane, viton, 316 Stainless Steel

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