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Pressure transmitter 520
The compact pressure transmitters of Type 520 are based on the thick-film technology developed by Huba Control, in which the pressure measuring cell is welded to the pressure receiver without seals. The pressure transmitter has very high burst safety and is suitable for use with liquids and gases, including all refrigerants and ammonia.
- Compact and robust design
- Welded without seals
- High variety of connector options
- Time-saving, fast customer-side cable assembly with quick cable screw connection
- No elastomer seals

Pressure transmitter 520
Product feature
Pressure measuring range
-1 ... 1000 bar (Relative)
Response time
<2 ms (typ. 1 ms)
Load change
<100 Hz
Sensor weight
90 g
Field of application
Media
Liquids; Gas; Refrigerant incl. ammonia
Medium temperature
-40 ... 135 °C
Permissible overload
5 x FS; 3 x FS (max. 1500 bar)
Burst pressure
10 x FS; 6 x FS (max. 2500 bar)
Ambient condition
Ambient temperature
-30 ... 85 °C
Storage temperature
-50 ... 100 °C
Material
Housing
Stainless steel 1.4404 (AISI 316L); Stainless steel 1.4305 (AISI 303)
Measuring element with media contact
Stainless steel
Pressure connection with media contact
Stainless steel 1.4404 (AISI 316L); Stainless steel 1.4305 (AISI 303)
Plug receptacle
Polyarylamide 50 % GF UL 94 V-0
Electrical data
Current consumption
<23 mA
Inverse-polarity protection
Short-circuit and reverse polarity protected. Each connection against each other with max. supply voltage.
Insulation voltage
500 VDC (Standard)
Protection class
3
Installation guide
Installation orientation
any
Approval
EMC compatibility
CE-compliant in accordance with EN 61326-2-3
increased noise immunity
EN 50121-3-2
Shock according to IEC 68-2-27
100 g, 11 ms, half-sine curve, all 6 directions, free fall from 1 m onto concrete (6x)
Permanent shock according to IEC 68-2-29
40 g over 6 ms, 1000x all 3 directions.
Vibration according to IEC 68-2-6
20 g, 15 ... 2000 Hz, 15 ... 25 Hz with amplitude ± 15 mm, 1 octave / minute in all 3 directions, 50 continuous loads
UL
ANSI/UL 61010-1 gemäss E325110
Drinking water authorisation
NSF/ANSI 61/372 according to MH60087; WRAS
Explosion protection
Intrinsic safety "IS"
Ex II ½ G Ex ia IIC T4 Ga/Gb; Ex II ½ D Ex ia IIIC T125ºC Da/Db
EC type examination certificate
SEV 15 ATEX 0173; SEV 10 ATEX 0145
Connection to certified intrinsic safety ohmic circuits with the maximum values
Ui < 15 VDC / Ii < 200 mA / Pi < 750 mW; Ui < 30 VDC / Ii < 100 mA / Pi < 750 mW
Effective internal inductance and capacitance
Li = 0 nH / Ci < 150 nF; Li = 0 nH / Ci < 150 nF; Li = 0 nH / Ci = 0 nF
IECEx
SEV 16.0007

Pressure transmitter 520
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520 Fiche technique IO-Link
Data Sheet
PDF
EN-GB

Data Sheet 520
Data Sheet
PDF
EN-GB

Data Sheet 520
Data Sheet
PDF
EN-GB

520 IO-Link data sheet
Data Sheet
PDF
EN-GB
FR
DE

Operating Instruction 520
Operating Instruction
PDF
EN-GB

ATEX explosion protection approval
Certificate
PDF
EN-GB

Explosion protection approval IEC Ex
Certificate
PDF
EN-GB

Drinking water authorisation WRAS
Certificate
PDF
EN-US

Drinking water approval UL
Certificate
PDF
EN-GB

ATEX explosion protection approval
Certificate
PDF
EN-GB

528 Explosion protection approval ATEX
Certificate
PDF
EN-GB
DE

520 Declaration of conformity EMC/ATEX/RoHS
Declaration of Conformity
PDF

Pressure transmitter 520
Order number
Accessories
103510
Socket outlet DIN EN 175301-803-A
with seal; IP 65, when mounted and screwed
104244
Socket outlet DIN EN 175301-803-C
with seal; IP 65, when mounted and screwed
104551
Calibration certificate
105073
Heat sink
with external thread G ½ - internal thread G ¼
105074
Heat sink
with external thread G ¼ front sealing - internal thread G ¼
105631
Heat sink
with external thread G ½ front sealing - internal thread G ½ ¼
106975
Angled cable socket
M12x1; 3-pole
114570
Straight cable socket
M12x1; 3-pole
114604
Angled cable socket
for M12x1 connector; With cable; 200 cm; 3-pole
114605
Straight cable socket
for M12x1 connector with cable; 200 cm; 3-pole
117312
Socket
for cable quick connector
118716
Mounting bracket
With screw