Instrument overview
INSTRUCTION MANUAL AquaScat 2
11778E/1
9
2.4.
Technical data
TURBIDITY MEASUREMENT VALUES
Measuring principle
Scattered light measurement
Measurement span
0 .. 4000 FNU
Sample media
Water
Wavelength
880 nm, compliant with DIN EN ISO 7027
Radiation class
LED device of Class 1 according to EN 60825-1
Measuring angle
90°
AQUASCAT 2 WTM
VALUES
Resolution
0.001 FNU
Reproducibility
0 .. 10 FNU: ±0.002 FNU, or ±1% full scale at flow rate
2.5 .. 7 l/min (±3% at flow rate 1.3 .. 2.5 l/min)
10 .. 4000 FNU: ±1.5% at flow rate 3.5 .. 7 l/min
Repeatability
0.001 FNU or ±0.1% full scale
Service voltage
18-30 VDC
Power consumption
8 W
Curr. outputs
2 x 0/4 .. 20 mA, galvanically isolated to max. 50 V relative
to ground
Burden
max. 600
Relay contacts
2 relay contacts 250 V, 4 A
Control unit
Integrated control unit
Measuring ranges
8 ranges between 0 .. 0.1 and 0 .. 4000 FNU freely configu-
rable
Housing
Plastic (ABS)
Dimensions
For detailed dimension sheet see Section 15
Weight
approx. 3.2 kg
Protection degree
IP54 (only electronics)
Maximum operating altitude
3000 m above sea level for instruments which are not oper-
ated with extra low voltage (mains, relays).
Ambient temperature
0 .. 50°C
Ambient humidity
0 .. 95% rel. humidity, non-condensing
Interface
Ethernet, SD card (for logging, SW update, diagnostics)
Modbus TCP, optional Modbus RTU or Profibus DP
Terminal size for signal cable
Cable holder for Ø of 0.08 mm
2
to 1.5 mm
2
Terminal size for supply and
relays
Cable holder for Ø of 0.08 mm
2
to 2.5mm
2
