WS18DS Water in Oil Sensor product photo Primary L

WS18DS Water in Oil Sensor

The Pall WS18DS is designed to offer reliable measurement of water content in oils in demanding industrial applications. In addition to being able to measure both relative humidity and temperature to highly accurate and precise levels, the WS18DS is also capable of calculating the parts per million (PPM) content of dissolved water in oil.

The Effect of Water in Oil
Water contamination in fluid can cause numerous problems such as additive depletion, oil oxidation, corrosion, reduction of dielectric strength. These costly problems can be averted with continuous monitoring of oil water content so that timely action can be implemented.

Hydraulic, lubrication and insulating fluids, and diesel fuels should be operated without the presence of free water and with dissolved water levels at 50% saturation or considerably of insulating oils.

Measures the dissolved water content in oil and displays this measurement in either % saturation or PPM.
1. 3.5" TFT Colour Display
  • Instrument data can be viewed from the 3.5” colour display and can also be downloaded to external computer for more in-depth data analysis.
2. Enclosure
  • Electronics protected against mechanical damage
  • Mounting accessible with closed cover
  • IP65 / NEMA4 rated
3. Outputs
  • 2 analogue outputs current / voltage
  • Modbus RTU
  • Configurable via display or software
  • 2 switch outputs (optional)
4. USB interface
  • Simple connection to external computer through micro-USB
5. Probe
  • Suitable for temperatures up to 180 °C (356 °F)
  • Suitable for pressures up to 20 bar (290 psi)

Display

  • Shows up to 4 measurands simultaneously
  • Display alarms for customer specific limits
  • Configure and scale outputs
  • Configure Modbus settings
  • All measured and calculated values logged continuously
  • Logs up to 3 months depending on sampling rate
  • Download data via integrated USB port and Pall software
  • View all device relevant information in a matter of clicks

Modular Housing

The upper part of the transmitter that encloses the electronics can be separated from the base unit for service or adjustments. The base remains mounted and the cabling intact, even when the unit is being serviced.

A polycarbonate plate on the inside of the housing prevents damage to the electronic board during installation or service.



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Description

The Pall WS18DS is designed to offer reliable measurement of water content in oils in demanding industrial applications. In addition to being able to measure both relative humidity and temperature to highly accurate and precise levels, the WS18DS is also capable of calculating the parts per million (PPM) content of dissolved water in oil.

The Effect of Water in Oil
Water contamination in fluid can cause numerous problems such as additive depletion, oil oxidation, corrosion, reduction of dielectric strength. These costly problems can be averted with continuous monitoring of oil water content so that timely action can be implemented.

Hydraulic, lubrication and insulating fluids, and diesel fuels should be operated without the presence of free water and with dissolved water levels at 50% saturation or considerably of insulating oils.

Measures the dissolved water content in oil and displays this measurement in either % saturation or PPM.
1. 3.5" TFT Colour Display
  • Instrument data can be viewed from the 3.5” colour display and can also be downloaded to external computer for more in-depth data analysis.
2. Enclosure
  • Electronics protected against mechanical damage
  • Mounting accessible with closed cover
  • IP65 / NEMA4 rated
3. Outputs
  • 2 analogue outputs current / voltage
  • Modbus RTU
  • Configurable via display or software
  • 2 switch outputs (optional)
4. USB interface
  • Simple connection to external computer through micro-USB
5. Probe
  • Suitable for temperatures up to 180 °C (356 °F)
  • Suitable for pressures up to 20 bar (290 psi)

Display

  • Shows up to 4 measurands simultaneously
  • Display alarms for customer specific limits
  • Configure and scale outputs
  • Configure Modbus settings
  • All measured and calculated values logged continuously
  • Logs up to 3 months depending on sampling rate
  • Download data via integrated USB port and Pall software
  • View all device relevant information in a matter of clicks

Modular Housing

The upper part of the transmitter that encloses the electronics can be separated from the base unit for service or adjustments. The base remains mounted and the cabling intact, even when the unit is being serviced.

A polycarbonate plate on the inside of the housing prevents damage to the electronic board during installation or service.

Specifications

Technical Data

             
Measured Values
Saturation
% saturation sensor HC1000-400
Measuring range 0 - 100%
Accuracy incl. hysteresis and nonlinearity in air
- Standard calibration

± 2% (0 - 90%S) ± 3% (90 - 100%S)
Temperature
Temperature sensor element Pt1000 (Tolerance class A, DIN EN 60751)
Working range sensing probe -40 - 180 ºC (-40 - 356 ºF)
Outputs
Two freely selectable scaleable analogue outputs
0…100% RH / xx…YYºC respectively
0 -1 /5 /10V -1mA < IL < 1mA
4 - 20mA RL < 500 Ohm
0 - 20mA RL < 500 Ohm
General
Supply voltage: 8 - 35V DC)
12 - 30V AC
(optional 100 - 240V AC, 50/60 Hz)
System requirements for software: Windows 7 or later; serial interface
Serial interface for configuration: RS232C
Housing / Protection class: Polycarbonate / IP65; Nema 4
Cable gland: M16 x 1.5 cable® 4.5 - 10mm (0.18 - 0.39”)
Electrical connection: Screw terminals up to max. 1.5mm2 (AWG 16)
Electromagnetic compatibility EN61326-1 EN61326-2-3    ICES-003 ClassB
Industrial Environment       FCC Part15 ClassB
Display: Graphical LC display (128 x 32 pixels), with integrated pushbuttons
for selecting parameters and MIN/MAX function
Switching parameters (freely selectable) %S % saturation
T  Temperature
X Water content
Options
Alarm outputs:

Integrated Power Supply Module
Digital Interface
2 x 1 switch contact: 250V AC / 6A and 28V DC / 6A
threshold + hysteresis can be adjusted with configuration software
allows the device to be powered with 100 - 240V AC (50/60Hz)
Digital Interface RS485 with Modbus RTU, up to 32 devices in one bus

Dimensions

All dimensions in mm

Type
Testing and Monitoring
Use
Dehydration, Purification
Ordering Information
Water Sensor P/N: WS18DS 1 2 3 4

Table 1

 
Code Display options
Omit No options
R Relay Alarms
M RS485 / Modbus
V AC Power
 

Table 2

 
Code Probe Fitting
B08 ½” NPT thread
C08 ½” ISO thread
 

Table 3

 
Code Probe Length
Omit 100 mm (3.9 in)
L 200 mm (7.9 in)
 

Table 4

 
Code Cable Length
Omit 2M (6.56 ft)
05 5M (16.4 ft)
10 10M (32.81 ft)
 

Please select only from the following list of standard Water Sensor options:

WS18DSB08
WS18DSB0805
WS18DSB0810
WS18DSB08L
WS18DSB08L05
WS18DSB08L10
WS18DSC08
WS18DSC0805
WS18DSC0810
WS18DSC08L
WS18DSC08L05
WS18DSC08L10
WS18DSRB08
WS18DSRB08L
WS18DSMC08
WS18DSMC08L
WS18DSVB08
WS18DSVB08L
WS18DSRC08
WS18DSMB08L
WS18DSMB08
WS18DSRC08L
WS18DSVC08
WS18DSVC08L
Application
Auto LOH for Stamping, Auto LOH-Filling Lines, Mining Equipment Gear Case, Mining Equipment Hydraulic Fluid, Mining Euqipment Lube Oil - on & off board, Heavy Hydraulic, Heavy Lubrication, Medium & Light Hydraulic, Medium & Light Lubrication, Coolants / Bearing Lubrication, Drives Gear Box + Roll Housing, Forging / Extrusion, Gear Box / Bearing, Gear Box / Morgoil, Material Directional Control, Material Handling, Non Contact, Medium & Light Hydraulic, Medium & Light Lubrication