Pressure

Pressure transmitter
For demanding industrial applications
Model S-20
WIKA data sheet PE 81.61

For further approvals,

see page 13

Applications Standard
article

■ Critical industrial applications

■ Demanding applications in research and development
■ Harsh environments in the process industry

Special features
■ Extreme variety, available at short notice from 1 piece
■ High accuracy, low temperature error, selectable
adjustment temperature
■ Proven technology
■ Special media and special versions

Pressure transmitter, model S-20

Description

The S-20 pressure transmitter is a versatile specialist for The selectable adjustment temperatures of +4 °C, +40
demanding tasks and harsh environments. The measuring °C, +60 °C and +80 °C [+39 °F, +104 °F, +140 °F, +176 °F]
ranges from 0 ... 0.4 to 0 ... 1,600 bar [0 … 5.8 to 0 … 23,200 reduce the temperature error to a minimum.
psi] can be combined with many output signals, electrical
connections and process connections. These configuration Proven technology
possibilities allow for over 1 billion versions and leave much The S-20 is based on proven technologies, tried and tested
room for tailor-made customisation. The S-20 is also at home in the field. With up to 100 million load cycles and a long-term
in critical industrial applications and works reliably with heat, stability to < 0.1 %, it constantly provides precise data for
vibrations or aggressive media. processes and plants. Regular audits permanently ensure
highest quality standards.
Extreme variety, available at short notice from 1 piece
The S-20 can be freely configured and optimally adapted to Special media and special versions
the plant requirements. All common versions are available Versions for special media, for example oxygen and
from a batch size of 1 within a few days. hydrogen applications, high temperatures and levels of
cleanliness are available. In addition, the S-20 can be
High accuracy, low temperature error, selectable delivered with IP68 and IP6K9K ingress protection.
adjustment temperature
The S-20 measures pressures particularly accurately
and reliably and is available in three accuracy classes.

WIKA data sheet PE 81.61 ∙ 06/2025 Page 1 of 18

Data sheets showing similar products and accessories:

Pressure transmitter; for general industrial applications; model A-10;
see data sheet PE 81.60
Specifications

The model S-20 is available with an improved non-linearity. Depending on the selected non-linearity the following values result:

Accuracy specifications Non-linearity Non-linearity Non-linearity

≤ ±0.5 % of span ≤ ±0.25 % of span ≤ ±0.125 % of span 1)

Non-linearity per BFSL per IEC 61298-2 ≤ ±0.5 % of span ≤ ±0.25 % of span ≤ ±0.125 % of span
Non-linearity per terminal method per ≤ ±1 % of span ≤ ±0.5 % of span ≤ ±0.25 % of span
IEC 61298-2
Accuracy at adjustment temperature → See “Max. measured error per IEC 61298-2”
Max. measured error per IEC 61298-2 ≤ ±1 % of span ≤ ±0.5 % of span ≤ ±0.25 % of span
1) Restrictions for the non-linearity of 0.125 % BFSL or 0.25 % per terminal method:
Available output signals: 4 ...20 mA and DC 0 ... 10 V
Available measuring ranges: all measuring ranges specified in the data sheet
Other output signals or measuring ranges on request.

Further details on: accuracy specifications

Non-repeatability per IEC 61298-2 ≤ 0.1 % of span
Zero point error ■ ≤ ±0.2 % of span, factory-set
■ ≤ ±0.1 % of span, factory-set 1)

Temperature hysteresis ≤ 0.1 % of span at > 80 °C [176 °F]

Long-term drift per IEC 61298-2 ■ ≤ ±0.1 % of span
■ ≤ ±0.2 % of span (with special measuring ranges and measuring ranges < 1 bar
[<15 psi])
Temperature error (for adjustment temperature → See chart „Temperature error“
15 ... 25 °C [59 ... 77 °F])
For measuring ranges < 1 bar [<15 psi], special measuring ranges and instruments
with an increased overpressure limit, the respective temperature error increases by
0.5 % of span
Adjustment temperature ■ 15 ... 25 °C [59 ... 77 °F]
■ 4 °C ±5 °C [39.2 °F ±9 °F]
■ 40 °C ±5 °C [104 °F ±9 °F]
■ 60 °C ±5 °C [140 °F ±9 °F]
■ 80 °C ±5 °C [176 °F ±9 °F]
Additional zero point error depending on the mounting position for measuring ranges ≤ 1 bar [≤15 psi]
Mounting position 180°, vertical, ≤ 1 mbar [≤ 0.015 psi]
top process connection
Mounting position 90°, horizontal, lateral process ≤ 0.6 mbar [≤ 0.009 psi]
connection
Reference conditions Per IEC 61298-1
1) Restrictions for zero point error 0.1 % (factory-set):
Available output signals: 4 ...20 mA and DC 0 ... 10 V
Available measuring ranges: all gauge pressure measuring ranges specified in the data sheet
Not available in combination with optional adjustment temperatures.

WIKA data sheet PE 81.61 ∙ 06/2025 Page 2 of 18

Temperature error

Temperature error [%]

Medium temperature [°C]

Measuring ranges, gauge pressure

bar psi
0 ... 0.4 0 … 40 0 … 10 0 … 600
0 ... 0.6 0 … 60 0 … 15 0 … 750
0…1 0 … 100 0 … 25 0 … 1,000
0 … 1.6 0 … 160 0 … 30 0 … 1,500
0 … 2.5 0 … 250 0 … 50 0 … 2,000
0…4 0 … 400 0 … 60 0 … 3,000
0…6 0 … 600 0 … 100 0 … 4,000
0 … 10 0 … 1,000 0 … 150 0 … 5,000
0 … 16 0 … 1,600 0 … 160 0 … 6,000
0 … 25 - 0 … 200 0 … 7,500
0 … 250 0 … 10,000
0 … 300 0 … 15,000
0 … 400 0 … 20,000
0 … 500 -

Measuring ranges, absolute pressure

bar abs. psi abs.

0 … 0.4 0…6 0 … 10 0 … 150
0 … 0.6 0 … 10 0 … 15 0 … 160
0…1 0 … 16 0 … 25 0 … 200
0 … 1.6 0 … 25 0 … 30 0 … 250
0 … 2.5 0 … 40 0 … 50 0 … 300
0…4 - 0 … 60 0 … 400
0 … 100 0 … 500

WIKA data sheet PE 81.61 ∙ 06/2025 Page 3 of 18

Vacuum and compound measuring ranges

bar psi
-0.4 … 0 -1 … +5 -30 inHg ... 0 -30 inHg ... +100
-0.6 … 0 -1 … +9 -30 inHg ... +15 -30 inHg ... +160
-1 … 0 -1 … +15 -30 inHg ... +30 -30 inHg ... +200
-1 … +0.6 -1 … +24 -30 inHg ... +45 -30 inHg ... +300
-1 … +1.5 -1 … +39 -30 inHg ... +60 -30 inHg ... +500
-1 … +3 -1 … +59

Further details on: measuring ranges

Units ■ bar
■ psi
■ kg/cm²
■ MPa
■ kPa
Maximum working pressure → Corresponds to the upper measuring range value / measuring range full scale
value
→ Any permanent operation above the maximum working pressure is not
permissible
Special measuring ranges From 0 ... 0.4 to 0 ... 1,600 bar [0 ... 10 to 0 ... 20,000 psi] available on request.
Special measuring ranges have an increased long-term drift and higher
temperature errors.
Overpressure limit The overpressure limit is based on the measuring range.
Depending on the selected process connection and the seal, restrictions in
overpressure limit can result.
A higher overpressure limit will result in a higher temperature error.
bar Measuring ranges ≤ 16 bar 3 times
Measuring ranges > 16 bar 2 times
Measuring range 1,000 bar 1.45 times
Measuring ranges > 1,000 bar 1.25 times
bar abs. Measuring ranges ≤ 16 bar abs. 3 times
Measuring ranges > 16 bar abs. 2 times
Measuring range 40 bar abs. 1.5 times
psi Measuring ranges ≤ 300 psi 3 times
Measuring ranges > 300 psi 2 times
Measuring ranges 1.7 times
600 psi, 1,000 psi, 1,500 psi, 4,000 psi,
6,000 psi, 10,000 psi
Measuring range 15,000 psi 1.45 times
Measuring ranges > 15,000 psi 1.25 times
psi abs. Measuring ranges ≤ 300 psi abs. 3 times
Measuring ranges > 300 psi abs. 2 times
Measuring range 500 psi abs. 1.5 times
Vacuum resistance Yes
Leakage rate ■ < 5*10-3 mbar*l/s
■ < 1*10-6 mbar*l/s 1) 2)

1) With oxygen and hydrogen applications.

2) With applications of hazardous fluids, liquids and gases in accordance with directive 2014/68/EU article 13, regulation (EC) no. 1272/2008 or GHS1.

→ Further overpressure limits on request.

WIKA data sheet PE 81.61 ∙ 06/2025 Page 4 of 18

Process connection
Standard Thread size Max. measuring Overpressure limit Pressure port Seal
range
DIN EN ISO 1179-2 G ¼ A 1) 600 bar [7,500 psi] 858 bar [12,400 psi] ■ 2.5 mm [0.1 in] ■ NBR
■ 0.3 mm [0.01 in] ■ FPM/
■ 0.6 mm [0.02 in] FKM
■ 6 mm [0.24 in] 2) ■ EPDM

1,000 bar [15,000 psi] 1,480 bar [21,400 psi] ■ 2.5 mm [0.1 in] ■ FPM/
■ 0.3 mm [0.01 in] FKM
■ 0.6 mm [0.02 in]

G 1/2 A 600 bar [7,500 psi] 858 bar [12,440 psi] ■ 2.5 mm [0.1 in] ■ NBR
■ 0.3 mm [0.01 in] ■ FPM/
■ 0.6 mm [0.02 in] FKM
■ 12 mm [0.48 in] 2)
DIN EN ISO 9974-2 M14 x 1.5 600 bar [7,500 psi] 858 bar [12,440 psi] ■ 2.5 mm [0.1 in] ■ NBR
■ 0.3 mm [0.01 in] ■ FPM/
■ 0.6 mm [0.02 in] FKM
■ EPDM

EN 837 G 1/8 B 400 bar [5,000 psi] 572 bar [8,290 psi] ■ 2.5 mm [0.1 in] ■ Copper

G 1/4 B 1) 1,000 bar [15,000 psi] 1,480 bar [21,400 psi] ■ 2.5 mm [0.1 in] ■ Copper
■ 0.3 mm [0.01 in] ■ Stainless
■ 0.6 mm [0.02 in] steel
■ Without

G ¼, female 1,000 bar [15,000 psi] 1,480 bar [21,400 psi] ■ 2.5 mm [0.1 in] -

G 3/8 B 1,000 bar [15,000 psi] 1,480 bar [21,400 psi] ■ 2.5 mm [0.1 in] ■ Copper
■ 0.3 mm [0.01 in] ■ Stainless
■ 0.6 mm [0.02 in] steel
■ Without

G ½ B 1) 1,000 bar [15,000 psi] 1,480 bar [21,400 psi] ■ 2.5 mm [0.1 in] ■ Copper
■ 0.3 mm [0.01 in] ■ Stainless
■ 0.6 mm [0.02 in] steel
■ Without

DIN 16288 M12 x 1.5 1,000 bar [15,000 psi] 1,480 bar [21,400 psi] ■ 2.5 mm [0.1 in] ■ Copper
■ 0.3 mm [0.01 in] ■ Stainless
■ 0.6 mm [0.02 in] steel
■ Without

M20 x 1.5 1,000 bar [15,000 psi] 1,480 bar [21,400 psi] ■ 2.5 mm [0.1 in] ■ Copper
■ 0.3 mm [0.01 in] ■ Stainless
■ 0.6 mm [0.02 in] steel
■ Without

ANSI/ASME B1.20.1 1/8 NPT 400 bar [5,000 psi] 572 bar [8,290 psi] ■ 2.5 mm [0.1 in] -
1/4 NPT 1,000 bar [15,000 psi] 1,480 bar [21,400 psi] ■ 2.5 mm [0.1 in] -
■ 0.3 mm [0.01 in]
■ 0.6 mm [0.02 in]
■ 6 mm [0.24 in] 2)
1/4 NPT, female 1,000 bar [15,000 psi] 1,480 bar [21,400 psi] ■ 2.5 mm [0.1 in] -
1/2 NPT 1) 1,000 bar [15,000 psi] 1,480 bar [21,400 psi] ■ 2.5 mm [0.1 in] -
■ 0.3 mm [0.01 in]
■ 0.6 mm [0.02 in]
■ 12 mm [0.48 in] 2)
SAE J514 7/16-20 UNF-2A O-ring 600 bar [7,500 psi] 858 bar [12,400 psi] ■ 2.5 mm [0.1 in] ■ NBR
BOSS ■ 0.3 mm [0.01 in] ■ FPM/
■ 0.6 mm [0.02 in] FKM
7/16-20 UNF-2A 74° 800 bar [10,000 psi] 1,144 bar [16,590 psi] ■ 2.5 mm [0.1 in] -
■ 0.3 mm [0.01 in]
■ 0.6 mm [0.02 in]

9/16-18 UNF-2A O-ring 600 bar [7,500 psi] 858 bar [12,400 psi] ■ 2.5 mm [0.1 in] ■ NBR
BOSS ■ 0.3 mm [0.01 in] ■ FPM/
■ 0.6 mm [0.02 in] FKM

WIKA data sheet PE 81.61 ∙ 06/2025 Page 5 of 18

 Process connection
Standard Thread size Max. measuring Overpressure limit Pressure port Seal
range
ISO 7 R 1/4 1) 1,000 bar [15,000 psi] 1,480 bar [21,400 psi] ■ 2.5 mm [0.1 in] -
■ 0.3 mm [0.01 in]
■ 0.6 mm [0.02 in]

R⅜ 1,000 bar [15,000 psi] 1,480 bar [21,400 psi] ■ 2.5 mm [0.1 in] -
■ 0.3 mm [0.01 in]
■ 0.6 mm [0.02 in]

R½ 1,000 bar [15,000 psi] 1,480 bar [21,400 psi] ■ 2.5 mm [0.1 in] -
■ 0.3 mm [0.01 in]
■ 0.6 mm [0.02 in]

KS PT ¼ 1) 1,000 bar [15,000 psi] 1,480 bar [21,400 psi] ■ 2.5 mm [0.1 in] -
■ 0.3 mm [0.01 in]
■ 0.6 mm [0.02 in]

PT 3/8 1,000 bar [15,000 psi] 1,480 bar [21,400 psi] ■ 2.5 mm [0.1 in] -
■ 0.3 mm [0.01 in]
■ 0.6 mm [0.02 in]

PT ½ 1,000 bar [15,000 psi] 1,480 bar [21,400 psi] ■ 2.5 mm [0.1 in] -
■ 0.3 mm [0.01 in]
■ 0.6 mm [0.02 in]

Process connection > 1,000 bar [> 15,000 psi]

- M16 x 1.5 female 1,600 bar [20,000 psi] 2,288 bar [33,180 psi] 2.5 mm [0.1 in] -
- 9/16-18 UNF, female 1,600 bar [20,000 psi] 2,288 bar [33,180 psi] 2.5 mm [0.1 in] -
F250-C
ANSI/ASME B1.20.1 1/2 NPT 1,600 bar [20,000 psi] 2,288 bar [33,180 psi] 2.5 mm [0.1 in] -
EN 837 G 1/2 B 1,600 bar [20,000 psi] 2,288 bar [33,180 psi] 2.5 mm [0.1 in] Without
DIN 16288 M20 x 1.5 1,600 bar [20,000 psi] 2,288 bar [33,180 psi] 2.5 mm [0.1 in] Without

1) For medium temperatures to 150 °C [302 °F] or 200 °C [392 °F] available with cooling element.
2) Wider pressure port with 6 mm [0.24 in] or 12 mm [0.48 in] only feasible for measuring ranges up to and including 0 ... 40 bar [0 ... 500 psi].

Details must be tested separately in the respective application. The specified values for the overpressure limit serve only as
a rough orientation. The values depend on the temperature, the seal used, the selected torque, the type and material of the
mating thread and the prevailing operating conditions.

→ Other process connections and seals on request.

→ For information on process connections, see technical information IN 00.14 at www.wika.com.

Further details on: process connection

Max. measuring range → See table “Process connection”
Overpressure limit → See table “Process connection”
Seal → See table “Process connection”
Pressure port diameter → See table “Process connection”
Possible restrictions Depending on the choice of seal at the process connection, there may be restrictions
in the permissible temperature range
NBR -30 ... +100 °C [-22 ... + +212 °F]
FPM/FKM -40 ... +200 °C [-40 ... +392 °F]
EPDM -40 ... +125 °C [-40 ... +257 °F]
Copper -40 ... +200 °C [-40 ... +392 °F]
Stainless steel -40 ... +200 °C [-40 ... +392 °F]

WIKA data sheet PE 81.61 ∙ 06/2025 Page 6 of 18

Output signal
Signal type
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
Load in Ω
Current (2-wire) ≤ (auxiliary power - 7.5 V) / 0.023 A
Voltage (3-wire) > maximum output signal / 1 mA
Ratiometric (3-wire) > 4.5k
Signal damping See table “Further details on: output signal”
Signal clamping
Output signal 4 ... 20 mA Zero point ■ 3.6 mA
■ 3.8 mA
■ 4.0 mA

Full scale ■ 20 mA
■ 21.5 mA
■ 23 mA

Output signal DC 0 ... 10 V Full scale ■ DC 10 V

■ DC 11.5 V

Voltage supply
Auxiliary power Output signal 4 ... 20 mA DC 8 ... 36 V
Output signal 20 ... 4 mA DC 8 ... 36 V
Output signal DC 0 ... 10 V DC 12 ... 36 V
Output signal DC 0 ... 5 V DC 8 ... 36 V
Output signal DC 1 ... 5 V DC 8 ... 36 V
Output signal DC 0.5 ... 4.5 V DC 8 ... 36 V
Output signal DC 1 ... 6 V DC 9 ... 36 V
Output signal DC 10 ... 0 V DC 12 ... 36 V
Output signal DC 0.5 ... 4.5 V ratio DC 5 V ±10 %
→ With cULus approval, limited to max. DC 35 V
Current supply Current (2-wire) Signal current, max. 25 mA
Voltage (3-wire) Max. 12 mA
Dissipation loss Current (2-wire) 828 mW (22 mW/K derating of dissipation
loss at ambient temperatures ≥ 100 °C [≥
212 °F])
Voltage (3-wire) 432 mW
Overvoltage resistance DC 40 V
→ Not for ratiometric output signals
Dynamic behaviour
Settling time per IEC 61298-2 → See table “Further details on: output signal”
Switch-on time 150 ms
Start-up drift 5 s (60 s with optional zero point adjustment 0.1 %)

WIKA data sheet PE 81.61 ∙ 06/2025 Page 7 of 18

 Further details on: output signal
Signal type Settling time per IEC 61298-2 Signal damping
3 dB limit frequency 500 Hz 3 dB limit frequency 1,000 Hz 1)
Current (2-wire) 3 ms 1 ms ■ 10 ms
■ 50 ms
■ 100 ms
Voltage (3-wire) 2 ms 1 ms ■ 500 ms
■ 1,000 ms
Ratiometric (3-wire) 2 ms 1 ms ■ 2,500 ms
■ 5,000 ms

1) Alternative specifications for 4 ... 20 mA output signal:

Load: ≤ (auxiliary power - 11.5 V) / 0.023 A
Auxiliary power: DC 12 ... 36 V

→ Other output signals on request.

Electrical connection
Connection type IP code Wire cross- Cable Cable Permissible temperature
1) section diameter material
Angular connector DIN EN 175301-803 A 2)
With mating connector IP65 Max. 1.5 mm² 6 ... 8 mm - -30 ... +100 °C [-22 ... +212 °F]
With mating connector IP65 Max. 1.5 mm² - - -30 ... +100 °C[-22 ... +212 °F]
(conduit)
With mating connector with IP65 3 x 0.75 mm² 6 mm PUR -30 ... +100 °C (cULus: -25 ... +85 °C)
moulded cable [-22 ... +212 °F (cULus: -4 ... +185 °F)]
With mating connector with IP65 6 x 0.5 mm² 6.8 mm PUR -25 ... +85 °C [-4 ... +185 °F]
moulded cable, shielded
Angular connector DIN EN 175301-803 C 2)
With mating connector IP65 Max. 0.75 mm² 4.5 ... 6 mm - -30 ... +100 °C [-22 ... +212 °F]
Circular connector M12 x 1, 4-pin 2)
Without mating connector IP67 - - - -30 ... +100 °C [-22 ... +212 °F]
With straight mating connector IP67 3 x 0.34 mm² 4.3 mm PUR -25 ... +80 °C [-4 ... +176 °F]
with moulded cable
With straight mating connector IP67 3 x 0.34 mm² 5.5 mm PUR -25 ... +80 °C [-4 ... +176 °F]
with moulded cable, shielded

With angled mating connector IP67 3 x 0.34 mm² 4.3 mm PUR -25 ... +80 °C [-4 ... +176 °F]
with moulded cable

Circular connector M12 x 1, 4-pin, metal

Without mating connector IP67 - - - -40 ... +125 °C (cULus: +85 °C)
[-40 ... +257 °F (cULus: +185 °F)]
With straight mating connector IP67 3 x 0.34 mm² 4.3 mm PUR -25 ... +80 °C [-4 ... +176 °F]
with moulded cable
With straight mating connector IP67 3 x 0.34 mm² 5.5 mm PUR -25 ... +80 °C [-4 ... +176 °F]
with moulded cable, shielded

With angled mating connector IP67 3 x 0.34 mm² 4.3 mm PUR -25 ... +80 °C [-4 ... +176 °F]
with moulded cable
Bayonet connector, 6-pin IP67 - - - -40 ... +125 °C [-40 ... +257 °F]
Field case IP6K9K - 7 ... 13 mm - -25 ... +100 °C [-4 ... +212 °F]

WIKA data sheet PE 81.61 ∙ 06/2025 Page 8 of 18

 Electrical connection
Connection type IP code Wire cross- Cable Cable Permissible temperature
1) section diameter material
Cable outlet
Cable outlet IP67 IP67 3 x 0.34 mm² 5.5 mm PUR -30 ... +100 °C [-22 ... +212 °F]
Cable outlet ½ NPT conduit IP67 6 x 0.35 mm² 6.1 mm PUR -30 ... +100 °C (cULus: +90 °C)
[-22 ... +212 °F (cULus: +194 °F)]
Cable outlet IP68 IP68 6 x 0.35 mm² 6.1 mm PUR -30 ... +125 °C (cULus: +90 °C)
[-22 ... +257 °F (cULus: +194 °F)]
Cable outlet IP68, FEP IP68 6 x 0.39 mm² 5.8 mm FEP -40 ... +125 °C (cULus: +105 °C)
[-40 ... +257 °F (cULus: +221 °F)]
Cable outlet IP6K9K IP6K9K 6 x 0.35 mm² 6.1 mm PUR -30 ... +125 °C (cULus: +90 °C)
[-22 ... +257 °F (cULus: +194 °F)]
1) The stated IP codes only apply when plugged in using mating connectors that have the appropriate IP code.
2) Customer zero point adjustment available as an option.

→ Other connections on request.

Further details on: electrical connection

Connection type → See table “Electrical connection”
Wire cross-section → See table “Electrical connection”
Cable diameter → See table “Electrical connection”
Pin assignment → See “Maximum permissible medium temperature”
Ingress protection (IP code) per IEC 60529 → See table “Electrical connection”
Cable length ■ 2m
■ 5m
■ 6 ft
■ 15 ft
Assembly of the cable outlets
Cable outlet IP67 ■ Unfinished wire ends
■ Tinned wire ends
■ With end splices

Cable outlet ½ NPT conduit ■ With end splices

■ Tinned wire ends

Cable outlet IP68 ■ With end splices

■ Tinned wire ends

Cable outlet IP68, FEP ■ With end splices

■ Tinned wire ends

Cable outlet IP6K9K ■ With end splices

■ Tinned wire ends

Short-circuit resistance S+ vs. U-

→ Not for ratiometric output signals
Reverse polarity protection U+ vs. U-
→ Not for ratiometric output signals
Insulation voltage DC 750 V

→ Other cable lengths on request.

WIKA data sheet PE 81.61 ∙ 06/2025 Page 9 of 18

Pin assignment

Angular connector DIN 175301-803 A Circular connector M12 x 1 (4-pin)

2-wire 3-wire 2-wire 3-wire
U+ 1 1 U+ 1 1
1
3 U- 2 2 2 1
U- 3 3
3 4
2
S+ - 3 S+ - 4
Shield (option) 4 4 Shield (option) Case Case

Angular connector DIN 175301-803 C Field case

2-wire 3-wire 2-wire 3-wire
U+ 1 1 U+ 1 1
1

3
U- 2 2 U- 2 2
1 2 3 4 5
2 S+ - 3 S+ - 3
Shield (option) 4 4 Shield 5 5

Bayonet connector (6-pin) Legend

U+ Positive power supply terminal
2-wire 3-wire
U- Negative power supply terminal
A
U+ A A S+ Analogue output
F B
U- B B
E
D
C
S+ - C → Other pin assignments on request.
Shield Case Case

Cable outlet
2-wire 3-wire
U+ Brown (BN) Brown (BN)
U- Blue (BU) Blue (BU)
S+ - Black (BK)
Shield 1) Grey (GY) Grey (GY)

1) With cable outlet IP67 and cable outlet ½ NPT conduit, the shield is optional

Mating connector with moulded cable

2-wire 3-wire
U+ Brown (BN) Brown (BN)
U- Blue (BU) Blue (BU)
S+ - Black (BK)

WIKA data sheet PE 81.61 ∙ 06/2025 Page 10 of 18

 Material
Material (wetted)
Relative measuring ranges Measuring ranges ≤ 25 bar [≤ 400 psi] Stainless steel 316L
Measuring ranges > 25 bar [> 400 psi] Stainless steel 316L + PH grade
steel
Measuring ranges > 1,000 bar ASTM 630 and PH grade steel
[> 15,000 psi]
Absolute pressure measuring ranges Stainless steel 316L
Sealing materials → See table „Process connection“
Material (in contact with the environment)
Case 316Ti
Electrical connection Angular connector DIN 175301-803 A PBT/PET GF30
Angular connector DIN 175301-803 C PBT/PET GF30
Circular connector M12 x 1, 4-pin PBT/PET GF30
Circular connector M12 x 1, 4-pin, metal 316L
Bayonet connector, 6-pin 316L, nickel-plated Al
Field case 316L, 316Ti, nickel-plated brass
Cable outlet IP67 PA66, PBT/PET GF30, PUR
Cable outlet ½ NPT conduit 316L, PUR
Cable outlet IP68 316L, PUR
Cable outlet IP68, FEP 316L, FEP
Cable outlet IP6K9K 316L, PUR
Pressure transmission medium Measuring ranges ≤ 25 bar [≤ 400 psi] Synthetic oil
Measuring ranges > 25 bar [> 400 psi] Dry measuring cell
Measuring ranges ≤ 40 bar abs.
Synthetic oil
[≤ 500 psi abs.]

Operating conditions
Medium temperature limit Ambient temperature limit Notes
-30 ... +100 °C [-22 ... +212 °F] -30 ... +100 °C [-22 ... +212 °F] -
-40 ... +125 °C [-40 ... +257 °F] -40 ... +125 °C [-40 ... +257 °F] -
-40 ... +150 °C [-40 ... +302 °F] -40 ... +125 °C [-40 ... +257 °F] 1) 400 bar [5,000 psi]
With integrated cooling element
-40 ... +200 °C [-40 ... +392 °F] -40 ... +125 °C [-40 ... +257 °F] 1) 400 bar [5,000 psi]
With integrated cooling element
-20 ... +60 °C [-4 ... +140 °F] -20 ... +60 °C [-4 ... +140 °F] Oxygen version

1) Derating curve and formula (see following chart)

WIKA data sheet PE 81.61 ∙ 06/2025 Page 11 of 18

Derating curve for cooling elements
150

125
Ambient temperature [°C]

100

75

50

25

0
25 50 75 100 125 150 175 200
Medium temperature [°C]

Maximum permissible ambient temperature Maximum permissible medium temperature

Tamb (Tmed < 125 °C) = 125 °C Tmed (Tamb < 80 °C) = 200 °C
Tamb (Tmed ≥ 125 °C) = -0.62 x Tmed + 202 °C Tmed (Tamb ≥ 80 °C) = -1.61 x Tamb + 326 °C

Tamb = ambient temperature [°C]

Tmed = medium temperature [°C]

Depending on the choice of seal on the process connection and the electrical connection, there may be restrictions in the
medium and ambient temperature (for restrictions, see “Process connection” and “Electrical connection”).

Further details on: operating conditions

Storage temperature limit -40 ... +70 °C [-40 ... +158 °F]
Humidity per EN 60068-2-30 0 ... 95 % relative humidity (non-condensing)
Humidity per CSA certificate 0 ... 80 % relative humidity (non-condensing)
Vibration resistance per IEC 60068-2-6 20g, 10 ... 2,000 Hz
40g, 10 ... 2,000 Hz for circular connector M12 x 1, metal
10g, 10 ... 2,000 Hz for instruments with cooling element
Shock resistance per IEC 60068-2-27 100g, 6 ms
500g, 1 ms for circular connector M12 x 1, metal
Operating altitude ≤ 2,000 m above seal level
Ingress protection (IP code) per IEC 60529 → See “Electrical connection”
Pollution degree 2
Overvoltage category I
Service life
Measuring ranges < 600 bar [< 7,500 psi] 100 million load cycles
Measuring ranges ≥ 600 bar [≥ 7,500 psi] 10 million load cycles

WIKA data sheet PE 81.61 ∙ 06/2025 Page 12 of 18

Options for special media
Food Food-compatible transmission fluid
Oil- and grease-free
Residual hydrocarbon < 1,000 mg/m²
Packaging Protective cap on the process connection
Oxygen, oil- and grease-free
Residual hydrocarbon Measuring ranges < 30 bar [< 435 psi] < 500 mg/m2
Measuring ranges > 30 bar [> 435 psi] < 200 mg/m2
Medium temperature limit -20 ... +60 °C [-4 ... +140 °F]
Max. measuring range 400 bar [5,000 psi]
Overpressure limit 2 times
Leakage rate < 1*10-6 mbar*l/s
Influence of mounting position Mounting position 180°, vertical, top ≤ 1.4 mbar [≤ 0.02 psi]
(measuring ranges ≤ 1 bar) process connection
Mounting position 90°, horizontal, lateral ≤ 0.8 mbar [≤ 0.012 psi]
process connection
Packaging Protective cap on the process connection
Hydrogen, oil- and grease-free
Measuring ranges 0.4 bar ... 1,000 bar [10 psi ... 15,000 psi]
Material (wetted) 316L and Elgiloy (2.4711)
Residual hydrocarbon < 1,000 mg/m2
Leakage rate < 1*10-6 mbar*l/s
→ For further information, see technical information IN 00.40 on the website.
Water (increased stability)
Measuring ranges 10 ... 25 bar [150 ... 400 psi]
Dry measuring cell
Measuring ranges 10 bar ... 25 bar [150 psi ... 360 psi]
Overpressure limit 2 times

Packaging and instrument labelling

Packaging Individual packaging
Instrument labelling ■ WIKA product label, lasered
■ Customised product label on request

WIKA data sheet PE 81.61 ∙ 06/2025 Page 13 of 18

Approvals

Logo Description Country

EU declaration of conformity European Union
EMC Directive
Pressure Equipment Directive
RoHS directive
UL USA and Canada
Safety (e.g. electr. safety, overpressure, ...)
EAC Eurasian Economic
EMC Directive Community
KazInMetr Kazakhstan
Metrology, measurement technology
- MTSCHS Kazakhstan
Permission for commissioning
UkrSEPRO Ukraine
Metrology, measurement technology
Uzstandard Uzbekistan
Metrology, measurement technology
- CRN Canada
Safety (e.g. electr. safety, overpressure, ...)

Manufacturer’s information
Logo Description
- China RoHS directive
MTTF > 100 years

Test report
Test report
Non-linearity 0.5 % 3 measuring points
Non-linearity 0.25 % 5 measuring points
Non-linearity 0.125 % 5 measuring points

Certificates (option)
Certificates
Certificates ■ 2.2 test report per EN 10204 (e.g. state-of-the-art manufacturing, material
proof, indication accuracy)
■ 3.1 inspection certificate per EN 10204 (e.g. material proof for wetted metal
parts, indication accuracy, calibration certificate)
Calibration ■ Factory calibration certificate
■ DAkkS calibration certificate (traceable and accredited in accordance with ISO/
IEC 17025)
Recommended calibration interval 1 year (dependent on conditions of use)

→ For approvals and certificates, see website

WIKA data sheet PE 81.61 ∙ 06/2025 Page 14 of 18

Dimensions in mm [in]
Angular connector DIN EN 175301-803 A Angular connector DIN EN 175301-803 C Angular connector DIN 175301-803 A with
zero point adjustment ring
≈47 ≈38 ≈38

≈27,5
≈27,5
≈28,4
PG 9

□29,5 ⌀29,5 ⌀29,5

⌀26,7 ⌀26,7

≈54,8
≈54,8
⌀26,7
≈54,9

⬡27 ⬡27 ⬡27

14
14
14

G 1/4 A G 1/4 A G 1/4 A

ISO 1179-2 ISO 1179-2 ISO 1179-2

Weight: approx. 150 g [0.331 lb] Weight: approx. 150 g [0.331 lb] Weight: approx. 150 g [0.331 lb]

Circular connector M12 x 1 (4-pin) Circular connector M12 x 1 Bayonet connector (6-pin)
(4-pin, metallic)
M12 x 1 M12 x 1

⌀29,5 ⌀26,9
⌀26,9
≈ 54,8

⌀26,7 ⌀26,8 ⌀26,8

≈52,5

≈52,5
⬡27 ⬡27 ⬡27
14

14

14
G 1/4 A G 1/4 A G 1/4 A
ISO 1179-2 ISO 1179-2 ISO 1179-2

Weight: approx. 150 g [0.331 lb] Weight: approx. 150 g [0.331 lb] Weight: approx. 150 g [0.331 lb]

Cable outlet IP68, FEP, IP6K9K Cable outlet ½ NPT conduit Cable outlet IP67

1/2 NPT

⌀26,9
⬡27
≈75,2

⌀26,8
⌀26,9
≈107
≈76,2

⌀29,5
⬡27 ⌀26,8
⌀26,7
14

⬡27
⬡27
G 1/4 A
14

ISO 1179-2
14

G 1/4 A
ISO 1179-2
G 1/4 A
ISO 1179-2
Weight: approx. 220 g [0.485 lb] Weight: approx. 220 g [0.485 lb] Weight: approx. 150 g [0.331 lb]

WIKA data sheet PE 81.61 ∙ 06/2025 Page 15 of 18

Dimensions in mm [in]
Field case

≈88,4

≈54,5

⌀6
0,3
≈35,6

⬡24

≈71,3
⌀26,8

⬡27
14

G 1/4 A
ISO 1179-2

Weight: approx. 290 g [0.639 lb]

WIKA data sheet PE 81.61 ∙ 06/2025 Page 16 of 18

Accessories and spare parts

Description Version Order number

Mating connector
Angular connector DIN 175301-803 A Gland PG9 11427567
With 2 m cable 11225793
With 2 m cable, shielded 14100465
With 5 m cable 11250186
Conduit 1/2 NPT 11022485
Angular connector DIN 175301-803 C Gland PG7 1439081
Circular connector M12 x 1, 4-pin, straight With 2 m cable 11250780
With 5 m cable 11250259
With 2 m cable, shielded 14056584
Circular connector M12 x 1, 4-pin, angled With 2 m cable 11250798
With 5 m cable 11250232
Seals for mating connector
Angular connector DIN EN 175301-803 A Blue (WIKA) 1576240
Brown (neutral) 11437902
Angular connector DIN 175301-803 C Blue (WIKA) 11169479
Brown (neutral) 11437881
Seals for process connection
G ⅛ B EN 837 Copper 11251051
G ¼ B EN 837 Copper 11250810
Stainless steel 11250844
G ⅜ B EN 837 Copper 11250861
G ½ B EN 837 Copper 11250861
Stainless steel 11251042
G ¼ A DIN EN ISO 1179-2 NBR 1537857
FKM/FPM 1576534
G ½ A DIN EN ISO 1179-2 NBR 1039067
FKM 1039075
M14 x 1.5 DIN EN ISO 9974-2 NBR 1537857
FKM 1576534
M12 x 1.5 DIN 16288 Copper 11250810
Stainless steel 11250844
M20 x 1.5 DIN 16288 Copper 11250861
Stainless steel 11251042
7/16-20 UNF BOSS SAE J514 NBR 14057554
FKM 11472022
9/16-18 UNF BOSS SAE J514 NBR 14057555
FKM 2063240

→ Only use the accessories listed above, otherwise it could lead to the loss of the approval.

WIKA data sheet PE 81.61 ∙ 06/2025 Page 17 of 18

 Ordering information Standard
Model / Measuring range / Overpressure limit / Output signal / Non-linearity / Adjustment temperature / Zero point article
setting / Process connection / Pressure port / Seal / Electrical connection / Assembly / Cable length / Shielding /
Certificates / Packaging / Instrument labelling / Accessories and spare parts

© 04/2013 WIKA Alexander Wiegand SE & Co. KG, all rights reserved.
The specifications given in this document represent the state of engineering at the time of publishing.
We reserve the right to make modifications to the specifications and materials.
In case of a different interpretation of the translated and the English data sheet, the English wording shall prevail.
06/2025 EN

WIKA data sheet PE 81.61 ∙ 06/2025 Page 18 of 18

WIKA Alexander Wiegand SE & Co. KG

Alexander-Wiegand-Straße 30
63911 Klingenberg/Germany
Tel. +49 9372 132-0
info@wika.de
www.wika.de