High Performance Pressure Transmitter
for General Industrial Applications
WIKA Datasheet S-20
Applications
■
General industrial applications
■
Demanding research and development applications
■
Harsh industrial environments
Special Features
■
Measuring ranges from 0…10 to 0…20,000 psi (0 ... 0.4
to 0 ... 1,600 bar)
■
Non-linearity of up to 0.125 % B.F.S.L.
■
Available output signals include 4 ... 20 mA, 0 ... 10 VDC,
1 ... 5 VDC and many others
■
Industry standard electrical connections including
DIN 175301-803A L- connector, cables, housings and
many others
■
Common USA and international process connections
available
Model S-20 Pressure Transmitter
Description
The model S-20 pressure transmitter is the ideal solution for
customers with demanding performance requirements in
many industrial applications.
It features high accuracy, a robust design and is available with
an exceptional number of options that make it suitable for an
extremely broad range of pressure measurement applications.
.
High versatility
The model S-20 oers continuous measuring ranges between
0…10 psi and 0…20,000 psi (0 ... 0.4 and 0 ... 1,600 bar) in
all common engineering units. Vacuum and compound ranges
are also available.
These measuring ranges can be combined with virtually any
standard industry output signal, common international process
connections and a wide variety of electrical connections.
A large number of options are available including dierent
accuracy classes, extended temperature ranges and
customer specic pin assignments to provide compatibility
with most industrial applications.
Data sheets showing similar products:
Pressure transmitter for general industrial applications; model A-10; see data sheet PE 81.60
High quality
The rugged design makes the model S-20 a highly reliable
transmitter that is not aected by most adverse environmental
conditions. This transmitter meets most application
performance requirements when exposed to very low outdoor
temperatures, extreme shock and vibration and aggressive
media.
Availability
Variations of the S-20 described in this data sheet are usually
available with short lead times. Inventory of popular designs
are usually available for particularly urgent requirements.
The listed pressure ranges are also available in kg/cm2, kPa and MPa.
Special measuring ranges between 0 ... 10 and 0 ... 20,000 psi ( 0.4…1600 bar) are available on request.
Special pressure ranges may have reduced long-term stability and increased temperature errors.
Overpressure limit
The overpressure limit depends on the specic sensor element used for the selected pressure range. A reduction in the
overpressure safety rating may occur depending on the specic process connection and seal selected. A higher overpressure
limit may provide a greater temperature error.
Measuring range < 150 psi/10 bar≥ 150 psi/10 bar
3 times (standard)2 times
5 times3 times
1) Restriction: max. 60 bar/870 psi with absolute pressure
2) Only possible for relative pressure measuring ranges ≤ 400 bar or 5,800 psi
3) Only possible for absolute pressure measuring ranges < 16 bar or 220 psi
1)
(standard)
2) 3)
Vacuum resistance
Ye s
(No damage to sensor when vacuum is applied)
Page 2 of 15WIKA Datasheet S-20 · 4/2013
Output signal
Signal typeSignal
Current (2-wire)4 ... 20 mA
20 ... 4 mA
Voltage (3-wire)DC 0 ... 10 V
DC 0 ... 5 V
DC 1 ... 5 V
DC 0.5 ... 4.5 V
DC 1 ... 6 V
DC 10 ... 0 V
Ratiometric (3-wire)DC 0.5 ... 4.5 V
Other output signals on request.
Permissible load in Ω
■
Current output (2-wire):≤ (power supply - 7.5 V) / 0.023 A
≤ (power supply - 11.5 V) / 0.023 A (with optional settling time of 1 ms)
■
Voltage output (3-wire):> maximum output voltage / 1 mA
■
Ratiometric output (3-wire): > 4.5k
Optional output signal limits
■
4 ... 20 mA signal:Minimum zero point setting: 3.6 mA 1), 3.8 mA, 4.0 mA
Maximum full scale setting: 20 mA, 21.5 mA, 23 mA
■
DC 0 ... 10 V signal:Full scale: 10 VDC or 11.5 VDC
1) Not available with the zero point adjustment option
Voltage supply
Power supply
Maximum allowable power supply rating for cULus approval: 35 VDC (32 VDC with heavy-duty connector)
■
Current output (2-wire)
4 ... 20 mA:8 ... 36 VDC (12 ... 36 VDC with optional 1 ms settling time)
20 ... 4 mA (reverse output): 8 ... 36 VDC
Current output (2-wire):828 mW (22 mW/K derating of the power dissipation when ambient temperatures
are ≥ 212 ° F/100 °C)
■
Voltage output (3-wire):432 mW
Maximum current consumption
■
Current output (2-wire):Current signal, max. 25 mA
■
Voltage output (3-wire):max. 12 mA
Page 3 of 15WIKA Datasheet S-20 · 4/2013
Reference conditions (per IEC 61298-1)
Temperature
59…77ºF (15…25ºC)
Barometric pressure
860 ... 1,060 mbar
Humidity
45 ... 75 % relative
Power supply
■
24 VDC
■
5 VDC for ratiometric output
Mounting position
Calibrated in vertical position with pressure connection facing down
Response time
Signal typeSettling time per IEC 62594Signal damping
Standard
Current (2-wire)3 ms1 ms10, 50, 100, 500, 1,000, 5,000 ms
Voltage (3-wire)2 ms1 ms10, 50, 100, 500, 1,000, 5,000 ms
Ratiometric (3-wire)2 ms1 ms10, 50, 100, 500, 1,000, 5,000 ms
1) 3 dB limit frequency: 500 Hz
2) 3 dB limit frequency: 1,000 Hz
3) Alternative specications for 4 ... 20 mA output signal:
Load:≤ (power supply - 11.5 V) / 0.023 A
Power supply: DC 12 ... 36 V
1)
Option 1
2)3)
Option 2
Switch-on time (from power up to output signal)
150 ms
Switch-on drift time
5 s to reach stated accuracy (60 s with optional 0.1 % zero point adjustment)
Page 4 of 15WIKA Datasheet S-20 · 4/2013
Accuracy data
Non-linearity (per IEC 61298-2)
Accuracy at calibration temperature
BFSLTerminal method
≤ ±0.5 % of span (standard)≤ ±1.0 % of span≤ ±1.0 % of span
≤ ±0.25 % of span≤ ±0.5 % of span≤ ±0.5 % of span
≤ ±0.125 % of span
1) Restrictions for the non-linearity of 0.125 % BFSL or 0.25 % with terminal method:
Available output signals: 4 ...20 mA and DC 0 ... 10 V
Available measuring ranges: All measuring ranges specied in the data sheet
For further output signals or measuring ranges, please ask the manufacturer
1)
≤ ±0.25 % of span
1)
≤ ±0.25 % of span
Calibration temperature
15 ... 25 °C (standard)
4 °C ±5 °C
40 °C ±5 °C
60 °C ±5 °C
80 °C ±5 °C
Zero point adjustment
≤ ±0.2 % of span, factory setting (standard)
≤ ±0.1 % of span, factory setting
±10 % of span, in 0.05 % increments, customer setting
1) Restrictions for the optional factory set 0.1 % zero point adjustment:
Only available with 4 ...20 mA and 0 ... 10 VDC output signals
Available measurement ranges: All relative pressure ranges specied in the
data sheet. Not available in combination with the optional calibration temperature.
2) The “optional zero point adjustment access” is not available with every electrical
connection, see “Electrical connections” for details.
1)
2)
1)
Eect of mounting position on zero oset
For measuring ranges < 15 psi ( 1 bar), an additional zero oset of up to 0.15 % applies
Non-repeatability
≤ ±0.1 % of span
Temperature hysteresis
0.1 % of span at > 176 °F (80 °C)
Long-term drift (per IEC 61298-2)
■
≤ ±0.1 % of span
■
≤ ±0.2 % of span (with special measuring ranges)
Temperature error (for calibration temperature of 59…77 °F (15 ... 25 °C))
For measuring ranges < 15 psi (1 bar), special measuring ranges and instruments with an increased overpressure limit the
temperature error increases by 0.5 % of span
Temperature error [%]
Medium temperature [°C]
Page 5 of 15WIKA Datasheet S-20 · 4/2013
Operating conditions
Permissible temperature ranges
MediumAmbientDesignmaximum permissible pressure
-30 ... +100 °C (standard)-30 ... +100 °C--
-40 ... +125 °C-40 ... +125 °C--
-40 ... +150 °C-40 ... +125 °C
-40 ... +200 °C-40 ... +125 °C
-20 ... +60 °C-20 ... +60 °COxygen applications-
1) Derating curve and formula (see following diagram)
There may be other media and ambient temperature limitations depending upon the sealing material used with the process
connection and the specic electrical connection selected.
For restrictions see "Process connections, sealings" and "Electrical connections".
1)
1)
with integrated cooling element5800 psi (400 bar)
with integrated cooling element5800 psi (400 bar)
Ambient temperature [°C]
Medium temperature [°C]
Maximum permissible ambient temperature
T
(T
amb
T
amb
T
= ambient temperature [°C]
amb
= medium temperature [°C]
T
med
< 125 °C) = 125 °C
med
(T
≥ 125 °C) = -0.62 x T
med
med
+ 202 °C
Maximum permissible medium temperature
T
(T
< 80 °C) = 200 °C
amb
(T
≥ 80 °C) = -1.61 x T
amb
amb
+ 326 °C
T
med
med
Storage and transport conditions
■
Permissible temperature range:-40…158° F (-40 ... +70 °C)
■
Maximum humidity (per IEC 68-2-78):67 % r.h. at 104 F (40 °C) (in accordance with 4K4H per EN 60721-3-4)
Vibration resistance (per IEC 68-2-6)
20 g, 10 ... 2,000 Hz, (40 g, 10 ... 2,000 Hz for heavy-duty connector)
For instruments with cooling elements a limited vibration resistance of 10 g applies (10 ... 2,000 Hz)
Continuous vibration resistance (per IEC 68-2-6)
10 g
Shock resistance (per IEC 68-2-27)
100 g, 6 ms (500 g, 1 ms for heavy-duty connector)
Service life
100 million load cycles (10 million load cycles for measuring ranges > 7,500 psi /600 bar)
Free-fall test (following IEC 60721-3-2)
■
Individual packaging:5 ft (1.5 m)
■
Multiple packaging:1.6 ft (0.5 m)
■
PE bag:1.6 ft (0.5 m)
Page 6 of 15WIKA Datasheet S-20 · 4/2013
Process connections
Available connections
Process connection perThread sizeMaximum overpressure limit
EN 837G ⅛ B11,600 psi (800 bar)
G ¼ B20,300 psi (1,400 bar)
G ¼ B female20,300 psi (1,400 bar)
G ½ B26,100 psi (1,800 bar) (1.4404)
46,400 psi (3,200 bar) (1.4542)
G ⅜ B20,300 psi (1,400 bar)
DIN 3852-EG ¼ A8700 psi (600 bar)
G ½ A8700 psi (600 bar)
M14 x 1.58700 psi (600 bar)
EN 837StandardOption-DIN 3852-E--StandardOption
ISO 228StandardOption-SAE J514 E
-
-StandardOption
Page 7 of 15WIKA Datasheet S-20 · 4/2013
Electrical connections
Available connections
Electrical connectionIngress
protection
Wire
cross-sec-
Cable ∅Cable
material
maximum permissible
temperature
tion
L-connector DIN 175301-803 A
L-connector DIN 175301-803 C
Circular connector M12 x 1 (4-pin)
Circular connector M12 x 1 (4-pin, metallic) IP 67----40 ... +125 °C (cULus: +85 °C)
Bayonet connector (6-pin)IP 67----40 ... +125 °C
Field caseIP 6K9K----25 ... +100 °C
Heavy-duty connector
Cable outlet IP 67
2)
1)
Cable outlet ½ NPT conduitIP 676 x 0.35 mm
Cable outlet IP 68IP 686 x 0.35 mm
Cable outlet IP 68, FEPIP 686 x 0.39 mm
Cable outlet IP 6K9KIP 6K9K6 x 0.35 mm
1) Customer zero point adjustment available as an option.
2) max. DC 32 V with cULus approval
1)
1)
1)
IP 65----30 ... +100 °C
IP 65----30 ... +100 °C
IP 67----30 ... +100 °C
IP 68----40 ... +125 °C
IP 673 x 0.34 mm25.5 mmPUR-30 ... +100 °C
Straight mating connector, with
molded cable, shielded
■
Mating connector, angled, with
molded cable
Heavy-duty connector
■
Mating connector with cableIP 686 x 0.14 mm26.5 mmPUR-40 ... +125 °C
Ingress
protection
IP 653 x 0.75 mm26 mmPUR-40 ... +125 °C
Wire
cross-section
Cable ∅ Cable
material
max. permissible
temperature
Cable ends
no nishing
(cULus: -25 ... +85°C)
IP 656 x 0.5 mm
2
6.8 mmPUR-25 ... +85 °CEnd splices
IP 654 x 0.75 mm25.9 mmPUR-25 ... +85 °Cno nishing
IP 673 x 0.34 mm24.3 mmPUR-25 ... +80 °Cno nishing
IP 673 x 0.34 mm24.3 mmPUR-25 ... +80 °Cno nishing
IP 673 x 0.34 mm25.5 mmPUR-25 ... +80 °Cno nishing
no nishing
(cULus: -30 ... +90°C)
Assembly congurations of the cable outlets
Electrical connectionUnnished wire endsTinned wire endswith end splices
Cable outlet IP 67StandardOptionOption
Cable outlet ½ NPT conduit-OptionStandard
Cable outlet IP 68-OptionStandard
Cable outlet IP 68, FEP-OptionStandard
Cable outlet IP 6K9K-OptionStandard
Cable lengths of 6 ft, 15 ft, 2 m or 5 m are available, other cable lengths on request.
Page 8 of 15WIKA Datasheet S-20 · 4/2013
Connection diagrams
L-connector DIN 175301-803 A
U
+
U
-
S
+
Shield (option)44
L-connector DIN 175301-803 C
U
+
U
-
S
+
Shield (option)44
Bayonet connector (6-pin)
U
+
U
-
S
+
ShieldCaseCase
2-wire3-wire
11
22
-3
2-wire3-wire
11
22
-3
2-wire3-wire
AA
BB
-C
Heavy-duty connector
U
+
U
-
S
+
ShieldCaseCase
Circular connector M12 x 1 (4-pin)
U
+
U
-
S
+
Shield (option)CaseCase
Field case
U
+
U
-
S
+
Shield55
2-wire3-wire
11
22
-3
2-wire3-wire
11
33
-4
2-wire3-wire
11
22
-3
Cable outlet
incl. mating connector with molded cable
2-wire3-wire
U
+
U
-
S
+
Shieldgrey (GY)grey (GY)
brown (BN) brown (BN)
blue (BU)blue (BU)
-black (BK)
Cable outlet
(US code)
Other pin assignments on request.
Electrical protection
The electrical protection measures below do not apply to ratiometric output signals.
Elastomer sealing: oly FKM possible, max. -15 ... +60 °C and max. 30 bar measuring range.
Not possible with process connections with female thread
HydrogenOn request
Measuring ranges:from 25 bar relative
Wetted parts:316L and Elgiloy
Maximum permissible temperature: -30 ... +30 °C
Protection cap on the process connection, instrument sealed in a PE bag
2
(2.4711)
2
2
Page 10 of 15WIKA Datasheet S-20 · 4/2013
CE conformity
Pressure equipment directive
97/23/EC
EMC directive
2004/108/EC, EN 61326 emission (group 1, class B) and interference immunity (industrial application)
EM eld
30 V/m (80 ... 1,000 MHz)
RoHS conformity
Directive 2002/95/EC
Performance level (per EN ISO 13849-1:2008)
■
Performance level:PL = C
■
Category:Cat. = 1
■
Diagnostic coverage:DC = none
■
MTTF:> 100 years
Certicates (optional)
Available certicates
2.2 test reportState-of-the-art manufacturing
Wetted metallic parts
Conrmation of the class and indication accuracy
3.1 inspection certicateWetted metallic parts
Wetted metallic parts with suppliers' certicate
Conrmation of the class and indication accuracy
List of single measured values
DKD/DAkkS calibration certicate
Approvals and certicates, see website
Scope of delivery
Test report
■
Non-linearity 0.5 % (B.F.S.L.)
■
Non-linearity 0.25 % (B.F.S.L.)
■
Non-linearity 0.125 % (B.F.S.L.)
Packaging
Individual packaging (standard)
Multiple packaging (up to 20 pieces)
Instrument labeling
WIKA laser-etched label (standard)
Customer-specic label on request
3 points
5 points
5 points
Page 11 of 15WIKA Datasheet S-20 · 4/2013
Dimensions in mm
Pressure transmitter model S-20
with L-connector DIN 175301-803 A
Weight: approx. 150 g
with circular connector M12 x 1 (4-pin)
with L-connector DIN 175301-803 C
Weight: approx. 150 g
with circular connector M12 x 1
(4-pin, metallic)
with bayonet connector (6-pin)
Weight: approx. 150 g
with heavy-duty connector
Weight: approx. 150 g
with eld case
Weight: approx. 290 g
Page 12 of 15WIKA Datasheet S-20 · 4/2013
Weight: approx. 150 g
with cable outlet IP 68, FEP, IP 6K9K
Weight: approx. 220 g
Weight: approx. 150 g
with cable outlet ½ NPT conduit
Weight: approx. 220 g
with L-connector DIN 175301-803 A and
cooling element
Weight: approx. 360 gWeight: approx. 150 gWeight: approx. 150 g
with cable outlet IP 67
with L-connector DIN 175301-803 A and
zero point adjustment
Page 13 of 15WIKA Datasheet S-20 · 4/2013
Process connections
GL1
G ¼ A14
G ½ A17
M14 x 1.514
GL1
7/16-20 UNF J514 sealing cone 74° 15
GL1
G ⅛ B10
GD1L1L2L3
G ¼ B female 25201310
GL1
7/16-20 UNF BOSS 12.06
9/16-18 UNF BOSS 12.85
GD1L1L2
¼ NPT female252014
GL1
⅛ NPT10
¼ NPT13
½ NPT19
PT ¼13
PT ½19
PT ⅜15
R ¼13
R ½19
R ⅜15
GL1
G ¼ B13
G ½ B20
G ⅜ B16
M12 x 1.515
M20 x 1.520
For information on tapped holes and welding sockets, see Technical information IN 00.14 at www.wika.com.
Page 14 of 15WIKA Datasheet S-20 · 4/2013
Accessories and spare parts
Mating connector
DesignationOrder number
without cablewith 2 m cablewith 5 m cablewith 2 m cable, shielded
L-connector DIN 175301-803 A
■
with gland, metric1142756711225793112501862242656
■
with gland, conduit11022485---
L-connector DIN 175301-803 C14390811122582311250194-
Circular connector M12 x 1 (4-pin)
■
straight-112507801125025914056584
■
angled-1125079811250232-
Sealings for mating connectors
Mating connectorOrder number
Blue (WIKA)Brown (neutral)
L-connector DIN 175301-803 A157624011437902
L-connector DIN 175301-803 C1116947911437881
Sealings for process connection
Thread sizeOrder number
CopperStainless steelNBRFKM
G ⅛ B11251051--G ¼ B1125081011250844-G ½ B1125086111251042-G ⅜ B14065101--M12 x 1.51125081011250844-M20 x 1.51125086111251042-G ¼ A--15378571576534
G ½ A--10390671039075
M14 x 1.5--15378571576534
7/16-20 UNF BOSS--1405755411472022
9/16-18 UNF BOSS--140575552063240
Ordering information
Model / Measuring range / Overpressure limit / Output signal / Non-linearity / Calibration temperature / Zero point adjustment
The specications given in this document represent the state of engineering at the time of publishing.
We reserve the right to make modications to the specications and materials.