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.
pH | Dissolved Oxygen | Electrical Conductivity
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
| SPECIFICATION | VALUES |
|---|---|
| SUBMERSIBLE PRESSURE SENSOR | |
| Measurement technique | ½˝ Ceramic Capacitance Sensor |
| Standard Pressure ranges available | Gauge 2.5, 5, 10, 20, 40, 75, 100 m Absolute 20, 40, 75, 100 m |
| Max Over Range | 4 times Full Scale range. |
| Other Ranges available | Yes – Calibration charge may apply – refer sales office |
| Overall Accuracy (combined linearity, hysteresis and repeatability) | ± 0.1% Full Scale range |
| Long term stability | 0.2% full scale per annum |
| Resolution | Depth – 0.001 m , Temp – 0.05°C |
| PH SENSOR | |
| Measurement Technique | Gel-filled glass electrode with internal Ag/AgCl reference; Field replaceable electrode |
| Sensor Range | 0–14 pH |
| Resolution | 0.001 pH |
| Accuracy | ± 0.2 pH |
| ORP SENSOR | |
| Measurement Technique | Platinum electrode with internal Ag/AgCl reference; Field replaceable electrode |
| Sensor Range | –1000 mV – ±1000 mV |
| Resolution | 1 mV |
| Accuracy | ± 2% full scale |
| ELECTRICAL CONDUCTIVITY SENSOR & TEMPERATURE | |
| Measurement Technique | Toroidal conductivity |
| Standard EC ranges available | 0–2000 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 available | Yes – Up to 200,000 µS/cm |
| Overall Accuracy (combined linearity, hysteresis and repeatability) | ±1 % full-scale range |
| Resolution | EC – 1 µS |
| Temperature Range | –5 Deg C – +60 Deg C |
| TURBIDITY SENSOR | |
| Measurement Technique | 90° Infra-red (ISO7027) |
| Standard ranges available (factory set) | 100 NTU, 400 NTU 1000 NTU |
| Resolution | 0.1 NTU, 0.2 NTU, 0.3 NTU |
| Linearity | ± 1%, ± 1%, ± 3% |
| Temperature Coef cient | ± 0.2% /°C ± 0.1% /°C ± 0.1% /°C |
| Calibration Standard | APS AEPA polymer solutions 0, 100 NTU, 400 NTU, 1000 NTU |
| OPTICAL DISSOLVED OXYGEN | |
| Measurement Technique | Oxygen fluorescence detection method |
| Sensor Range | 0–200% saturation (0-20 ppm) |
| Resolution | 0.1% |
| Accuracy | Oxygen 1% of reading or 0.02 ppm whichever is greater |
| Response Time | 90% of DO change within 60 seconds |
| COMMON VALUES | |
| Cable type | Polyurethane sheathed cable, OD 8 mm, with 3 mm vent tube, moulded entry, HS7 connector for serial connection. |
| Standard Cable lengths | 10, 20, 30, 50, 100, 150, 200 m |
| Non-standard Cable Lengths | Yes – (Extra cable moulding time may be required) |
| Power supply | 8 to 30 V DC (at sensor), or on-board battery pack (option) |
| Power ESD protection | 2000 volts |
| Current consumption | Sleep ± 0.2 mA, logging 20 mA, communicating 30 mA (consumption rates vary depending on parameters selected) |
| Sensor warm up time | Up to 5 seconds |
| On-board battery pack (option) | Housing screws to sensor size (OD × L) 47 mm × 250 mm |
| Battery capacity | 9 × 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 logger | Non-volatile, battery backed RAM with real time clock |
| Memory size | 4 Mb capacity, with user selectable wrap function |
| Measuring units | User definable (Metric and Imperial US units) |
| Data storage | 250,000 readings. (Typically 5 minute data for >12 months) |
| Logging frequency | User 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 |
| Weight | MP47 – 550 g plus cable weight (665g per 10m length) MQ65 – 650 g plus cable weight (665g per 10 m length) |
| Wetted materials | Acetal, ceramic, polyurethane, viton, 316 Stainless Steel |
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