Datasheet M&EWS11XENa
WS11X Series
Water Sensor for hazardous environments
The Pall WS11X Water Sensor is designed for use in
hazardous environments. It measures and displays the
179 (7”)
relative water saturation and fluid temparture.
60 (2.4”)
151 (5.9”)
Avoid the costs of water contamination
Water in fluids can cause numerous problems such
as additive depletion, oil oxidation, corrosion, reduced
lubricating properties, accelerated component wear rates
and microbial growth. Such problems can be averted
with periodic monitoring so that corrective actions can be
implemented immediately.
98
(3.9”)
The Pall WS11X Water Sensor measures and displays
the water content of a fluid, expressed as percentage
saturation, and provides meaningful information on which to
base service and maintenance procedures.
Water content measurement in oil
Code ‘cable length’
The common industry practice has been to report water
15 (0.6”)
L
content in terms of parts per million (PPM).
At what levelCode
is ‘probe length’
it considered excessive? What is considered an acceptable
Pall WS11X Water Sensor
PPM in some fluids may contribute to catastrophic failure
in others.
ATEX Compliant Design
Ø13
Ø12
(0.51”)
(0.47”)
The Pall WS11X Water Sensor meets ATEX requirements
1/2” ISO or NPT
and complies to the health and safety standards of
intrinsically safe machinery corresponding with EN50014,
EN 50020 and EN50284
% Saturation
An alternative way to report water content
is asmin.
a 23 (0.9”)/
Adjustable
max. of
164the
(6.5”)
/ 364
percentage of the water saturation level
fluid
for(14.3”)
a
given temperature. This provides a measure of how close
the water content is to the water saturation level of the fluid
and hence, the formation of free water in the fluid.
The sensing probe and transmitter without display are
suitable for use in Zone 0/20 areas (equipment Group II) and
T6 temperature class.
% saturation can be converted to water concentration in
PPM by programming the unit with fluid specific constants ;
contact Pall sales offices for details.
Note: The WS11X transmitter with visual display is not
suitable for use in presence of combustible dust.
Hazardous area
Zone 0 / 20
Non-hazardous area
Zone 1,2 / 21,22
No display possible in the
presence of combustible dust
(EPL Da; Db, DC)
Intrinsically safe
transmitter supply unit
II 1 G Ex ia IIC T4 Ga
II 1 D Ex ia IIIC T70o Da IP65
CH1
The bushing must
conform to the hazard
requirements of a zone
bushing. The supplied
screw connection meets
this requirement!
CH2
+
-
+
-
+
-
+
-
Control
4-20mA ia
4-20mA ia
L+
L-
+
-
Supply
voltage
Ø13
51”)
Ordering Information
Specifications WS11X Water Sensor P/N: WS11XS 1 2 3 4 5
Table 1
Code Display options
Omit No display
With display
D
Table 4
Code Probe Pressure
Omit 20 bar (290 psi)
300 bar (4350 psi)
H
Table 2
Code Probe Fitting
Omit No fitting
B08
½” NPT thread
C08 ½” ISO thread
Table 5
Code Cable length
Omit 1M (3.28 ft)
2M (6.56 ft)
02
5M (16.4 ft)
05
10M (32.81 ft)
10
Table 3
Code Probe length
Omit 200 mm (7.9 in)
400 mm (15.7 in)
L
179 (7”)
179 (7”)
151 (5.9”)
151 (5.9”)
60 (2.4”)
60 (2.4”)
Measurement:
Water content:
0-90% RH ± 1.5%
>90% RH ± 2.3%
Temperature:
-40ºC to 180ºC ± 0.1ºC
(-40°F to 350°F)
Power Supply:
24V (AC/DC) 150mA
Analogue output:
Two freely selectable and scaleable outputs 4 - 20mA
Interface circuit:
RS232
Temp. range:
-20ºC to +60ºC (-4°F to + 140°F)
ambient air temperature -20ºC to +100ºC (-4°F to + 212°F) process fluid temperature
Approved standard:
ATEX directive 94/9/EC
Ex approval:
Cert TPS 13 ATEX 38892 003 X
Pressure rating:
20 or 300 bar (290 or 4350 psi)
Material:
Stainless Steel hardware
179 (7”)
Protection
Rating:
Data
cable:
151 (5.9”)
IP65, Non hazardous areas only
Screened 6 core cable 60 (2.4”)
Software compatibility: Windows XP or later
Cable length (supplied): 1 metre (3.28 ft)
98
(3.9”)
98
(3.9”)
Code ‘cable length’
Code ‘cable length’
L
L
Pipe fitting:
1⁄2”(3.9”)
BSP (Parallel) pipe fitting for system pressures up to 20 bar (290 psi)
1⁄2” NPT (Tapered) pipe fitting for system pressures up to 300 bar (4350 psi)
15 (0.6”)
98
Code ‘cable length’
L
Ø12
(0.47”)
Ø12
(0.47”)
10 metres (32.81 ft)
15 (0.6”)
Code ‘probe length’
Code ‘probe length’
Ø13
(0.51”)
Max. cable length:
Code ‘probe length’
15 (0.6”)
1/2” ISO or NPT
1/2” ISO or NPT
Adjustable min. 23 (0.9”)/
max. 164 (6.5”) / 364 (14.3”)
Ø13
(0.51”)
Adjustable min. 23 (0.9”)/
max. 164 (6.5”) / 364 (14.3”)
Ø12
(0.47”)
1/2” ISO or NPT
Adjustable min. 23 (0.9”)/
max. 164 (6.5”) / 364 (14.3”)
Hazardous area
Non-hazardous area
1,2 / 21,22
PallZone
Machinery
and Equipment
Visit us on the Web at www.pall.com
Non-hazardous area
No display possible in the
Pall Corporation has offices and plants throughout the world. For Pall representatives
presence
of combustible
dust
25 Harbor
Park Drive
in your area, please go to www.pall.com/contact
(EPL Da; Db, DC)
e 0 / 20
Zone 1,2 /Port
21,22
Washington, NY 11050
Hazardous area
Non-hazardous area
No display possible
in the484 3600 Because of technological developments related to the products, systems, and/or
Intrinsically safe
+1 516
telephone
presence of combustible
services described
the data and procedures are subject to change without
Zone 0 supply
/ 20 unit
Zone herein,
1,2 / 21,22
+1 800dust
289 7255 toll free US transmitter
notice. Please consult your Pall representative or visit www.pall.com to verify that
(EPL Da; Db, DC)
II 1 G Ex ia IIC T4 Ga
o
No
display
possible
+
+
this information remains valid. in the
II 1 D Ex ia IIIC T70 Da IP65
Portsmouth - UK
presence of combustible dust
Intrinsically safe Control (EPL Da; Db, DC)
CH2
transmitter supply unit
+44 (0)23CH1
9233 8000
telephone
© Copyright 2013, Pall Corporation. Pall and
are trademarks of Pall Corporation.
C T4 Ga
+44 (0)23 9233 8811 fax
® indicates a trademark registered in the USA. BETTER LIVES. BETTER PLANET and
Intrinsically safe
+
+
Filtration.
Separation.
Solution.
SM
are
service
marks
of Pall Corporation.
C T70o Da IP65
4-20mA
ia
industrialeu@pall.com
transmitter supply unit
- Control
+ T4+Ga
II 1 G Ex ia IIC
CH2
CH1
4-20mA ia
M&EWS11XENa
Nov 2013
+ +
- T70
- o Da IP65
II 1 D Ex ia IIIC
Zone 0 / 20
Hazardous area
4-20mA ia
4-20mA ia
+
+
L+
L-
+
-
Supply
voltage
CH1
CH2
-
-
Contro