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7300w² Monitor

Water Monitoring System for the WaterWatch² Range

The 7300w² Monitor is a water monitoring system and the core product in the WaterWatch² range. The monitor is designed to interface with all of the sensors in the WaterWatch² range. The monitor specification provides all the connections required for 1 or 2 sensors, systems can be created by the use of expansion boxes to include multiple sensors. The maximum number of sensors will be limited by the practicalities of most sites. We anticipate 8 being a sensible maximum although many more can be accommodated.

The 7300w² contains an inbuilt trending display, customer configurable, that shows the last 24 hours data for any measurement point on an easy to navigate graph. This can also be downloaded for reporting purposes. An external USB port and data logging function allows users to log and retrieve all stored data for a site in a standard .csv format without the need for specialist SD cards or compatible hardware.

Combining sensors provides a very cost effective way of simultaneously monitoring parameters such as dissolved oxygen and suspended solids in an activated sludge plant, or pH and turbidity at a treatment works outfall where the sensors can be located close together.

For specialist advice call:

+44 (0)1726 879800

Online Enquiry
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  • General Specifications
  • Input/Output Specifications
  • Expansion Options
  • Ordering Information
Dimensions (hxwxd)185 x 213 x 95 mm
Weight1.4 kg
Protection ClassIP65
Enclosure MaterialPolycarbonate (PC)
Cable Entries1x M20, 4x M16, 1 x USB Type A
Environmental Data
Operating Temperature-20 to +70ºC, 0-95% Humidity (Non-Condensing)
Power Supply85 to 264 VAC 50/60 Hz or 9 to 36VDC
Power RatingAC Supply - 0.8 A
DC Supply - 30 W
In order to maintain 61010-1 standards a cable of 6-13 mm should be used.
PN 230043 can be supplied with AC versions in order to maintain cMETus approval standards.
User Interface
DisplayGraphical LCD, Black on White
Back LightOn/Off/On after Keypress with user adjustable contract
Keypad6 Key
Trending Display24 hour trend display - user configurable
DataloggingUSB port for user memory stick
10,000 records limit
User configurable intervals 1-999 seconds
Analogue Outputs0/4-20mA, max load 750 ohms
Serial OuputsModbus RTU/RS485 & Profibus DP (expansion box required for Profibus DP)
Relays3 (reduced to 1 relay for Modbus/Profibus)
Relay TypeSPCO
Relay RatingMax 5A @30VDC/230VAC
Auxiliary ConnectionsConfigurable for Remote Input, Device Power
Sensor Interface
Digital CommunicationsModTechw² - RS485
Part NumberDescription
224939WaterWatch² Expansion Box (3 to 4 Sensor Input, 4 x 4-20mA and 4 x Relay Outputs)
225036WaterWatch² Power Supply (Input: 100 - 240VAC, Output: 12VDC, 5A)
Part NumberDescription
2231607300w² Monitor (100 - 240VAC, 2 x 0/4-20mA Output, 3 x Relay Outputs)
2231617300w² Monitor (10 to 30VDC, 2 x 0/4-20mA Output, 3 x Relay Outputs)
2269747300w² Monitor (100 - 240VAC, Modbus Slave, 1 Relay Output)
2269757300w² Monitor (10 to 30VDC, Modbus Slave, 1 Relay Output)
230043North American Power Cord (UL Approved)
Mounting Options
223974FlexTech Monitor Bracket (7300w²/SludgeWatch Ultra Monitor, Ø 43 to 60.3mm)
223975Mounting plate with isolator
226786/229787Outer enclosure with isolator

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