产品描述：
The WaterWatch2300 Monitor combines with the WaterWatch2310 sensor to give a cost-effective Turbidity measurement system. The WaterWatch2310 sensor provides an extremely stable zero point due to the mechanical design of the flowcell. This coupled with the dry calibration standards that are supplied with every sensor make the system easy to use and calibrate.。
The monitor provides a large character LED display of the measured value, that is clearly visible with a 2 line LCD display for configuration. The field mount enclosure is IP65 rated and is suitable for indoor and outdoor wall installation. Partech can provide the monitor and sensor pre-wired on a backboard or in an outer enclosure, if desired requiring only sample, power and telemetry connection. The monitor provides the user interface for all calibration and maintenance unction and provide a 4-20 mA output signal supplemented by 2 relays that can be used as high, low or fault alarms. The WaterWatch2310 sensor complies with the internationally recognised ISO7027 standard for Turbidity measurement. The unique sensor design captures stray light which ensures an ultra stable zero point, this is combined with an automatic self-cleaning mechanism that prevent the build up of fouling within the sample chamber
The WatchWatch2310 sensor includes an automatic cleaning mechanism that operates at a user programmed frequency. The cleaning blade prevents the build up of fouling on the optical windows and keeps the flowcell clear of obstructions.
Key to any low range Turbidity measurement is the design of the flowcell and the control of stray light. The design of the WaterWatch2310 means that a true zero is possible and stray is captured. The measurement system includes a self monitoring loop that compensates for changes in optical performance.
The flowcell can be easily broken down for cleaning without any specialist training or tools, if servicing is required the modular design makes the job simple and hassle free
技术参数：
Physical - Monitor
|
Weight |
1.0 kg |
|
Dimensions (hxwxd) |
222 x 214 x 92 mm |
|
Enclosure Rating |
IP65 |
|
Enclosure Material |
ABS |
|
Cable Entries |
4x PG11 (cable 5 to 10 mm² |
|
Cable Core Size |
Max Conductor Size 2.5 mm² |
User Interface
|
Display |
4 Digit LED Measurement Display |
|
2 Line LCD Message Display |
|
Membrane Keypad |
5 Key pillow embossed |
|
Units of Measurement |
mg/l, g/l, ppm, NTU, FTU |
Environmental Data
|
Operating Temperature |
0 - 50ºC |
|
Storage Temperature |
-20 to 60ºC |
|
Location |
Indoor |
Output Signals
|
Analogue Output |
4-20mA, max load 750 ohm |
|
Relays |
2 |
|
Relay Type |
SPCO |
|
Relay Rating |
5A @ 230VAC, 5A@125VDC |
|
Type |
High, Low or Fault |
|
Adjustment |
0-100% Sensor Range |
Physical - Sensor
|
Weight |
4.5 kg |
|
Dimensions (hxwxd) |
440 mm x 200 mm x 200 mm |
|
Enclosure Rating |
IP68 |
|
Material of Construction |
Black Acetal Co-Polymer, Polypropylene |
|
Seal Material |
Nitrile |
|
Cable Entries |
Integral Cable Gland |
|
Cable Type |
4 core, 2 Twisted Pair, 5mm O/D Polyurethane Coated |
|
Cable Length |
10 metres standard, 100 metres maximum |
|
Process Connections |
Inlet and Bypass: 1/2" BSP with 12 mm hosetail |
|
Outlet: 1/4" BSP with 8 mm hosetail |
|
Service Requirement |
Automatic Self Cleaning |
|
Wiper and Dessicant Replacement yearly (application dependent) |
Measurement Principal
|
Principal of Operation |
90º Light Scatter |
|
ISO 7027 Compliant |
Measurement Characteristics
|
Accuracy |
Better than +/- 2% FSD on real sample |
|
Resolution |
Dependent on range setting, typcially +/- 2% |
|
Repeatability |
Better than +/- 1% FSD on real sample |
|
Response Time |
90% of step change in 2 minutes at 1 l/min |
|
Flowrate |
0.5 to 5 l/minute |
|
Low Range |
0-5 to 0-30 NTU |
|
High Range |
0-50 to 0-500 NTU |
|
It has been assumed that 1 FTU = 1 NTU for the purposes of this statement |
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