Novus WL420 Operation Manual

Submersible Hydrostatic Level
Transmitter
LEVEL TRANSMITTER – OPERATION MANUAL – V1.0x D

INTRODUCTION

Submersible Hydrostatic Level Transmitter is designed for
continuous monitoring of liquid level in water wells, reservoirs, tanks,
boreholes, rivers and other liquids. The submersible unit will detect
the hydrostatic pressure at the bottom of the liquid and transmit a
proportional current signal to the water column for system
instrumentation.
The highly stable 316L stainless steel diaphragm sensor is
compatible with raw or chlorinated water and most semi-aggressive
liquids and oils.
Several level measurement ranges are available and allow a wide
range of applications, such as installation on local or remote panels
and use with data loggers or PCLs.

TECHNICAL SPECIFICATION

1 ... 100 m WC (1, 1.6, 2.5, 4, 6, 10,
Pressure Range
16, 25, 40, 60 and 100 m WC)
5 ... 120 m (5, 10, 15, 20, 30, 40, 50,
Cable Length
80 and 120 m)
Sensor Piezoresistive diaphragm
Analog Output 4-20 mA
Accuracy 0.5 % F.S. @25°C
Pur (polyurethane) 2x conductor,
Cable
shield and ventilation tube
0 m ~ 10 m WC: 0 to ~60 °C
Temperature
Compensation
10 m ~ 200 m WC: -10 to ~70 °C
± 1.5 % F.S. (within temperature
Zero temp. coefficient
compensation)
± 1.5 % F.S. (within temperature
Span temp. coefficient
compensation)
Mechanical Vibration 20 g (20~500 HZ)
Mechanical Shock 20 g (11 ms)
Insulation 100 MΩ / 250 VDC
Response Time ≤ 1 ms (Up to 90 % F.S.)
Long Term Stability
±0.2 % F.S./year
0 to 60 °C
If measuring range < 4 m WC
Operating
Temperature
-10 to 70 °C
If measuring range ≥ 4 m WC
Storage Temperature -40 to 125 °C
Loop-powered
Power Supply
4-20 mA (12 ~ 36 Vcc)
Sensor: SS 316L
Housing Material Housing: SS 304
Protective cover: SS 304
NOVUS AUTOMATION
Height: 105 mm
Dimensions
Diameter: 26.5 mm
Level of Protection
IP68
<=6 m WC: 3x F.S.
Overpressure Limit
>=10 m WC: 2x F.S.
Electrical Protection Reverse polarity and current limiter
Certification CE, UKCA, RoHS
Warranty 1 year
Table 01 – Technical specification

IDENTIFICATION

The Submersible Hydrostatic Level Transmitter has the following
identification engraving on the sensor body:
Fig. 01 – Identification engraving
Attached to the end of the cable is an identification tag:
Fig. 02 – Identification tag
And it is supplied in the following models:
PRESSURE
MODEL
RANGE
WL420-1M-L5 1 m WC
WL420-1M-L15 1 m WC
WL420-1.6M-L5 1.6 m WC
WL420-1.6M-L15 1.6 m WC
WL420-2.5M-L5 2.5 m WC
WL420-2.5M-L15 2.5 m WC
WL420-4M-L10 4 m WC
OVER- BURTS
CABLE
PRESSURE PRESSURE
300 % F.S. 600 % F.S. 5 m
300 % F.S. 600 % F.S. 15 m
300 % F.S. 600 % F.S. 5 m
300 % F.S. 600 % F.S. 15 m
300 % F.S. 600 % F.S. 5 m
300 % F.S. 600 % F.S. 15 m
300 % F.S. 600 % F.S. 10 m
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