PRESSURE TRANSDUCER HM 20-2X/315-C-K35

Manufacturer: Bosch Rexroth

Material #: R901342029

Model : HM 20-2X/315-C-K35

***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
The Bosch Rexroth HM 20-2X/315-C-K35 (R901342029) is a high-precision pressure transducer designed for dynamic pressure control in hydraulic systems. This model boasts an analog output of 4-20 mA, suitable for a pressure range up to 315 bar. It features a rapid signal rise time of less than 10 ms, ensuring timely responses in dynamic applications. The robust construction includes all media-contacting components made from stainless steel, enhancing the durability and longevity of the transducer in challenging environments. The HM 20-2X/315-C-K35 is engineered with a thin-film measuring cell that delivers exceptional measurement accuracy of less than ±0.5% FS. Its superior overload and bursting behavior make it reliable for safety-critical applications. The unit comes with a G1/4 hydraulic connection and includes a throttle element within the pressure channel to stabilize readings. Equipped with an M12, A-coded electrical connector, this device adheres to EN standards, ensuring compatibility and ease of integration into existing systems. It operates on a supply voltage of 9-32 VDC and has a weight of approximately 0.4 kg. The NBR seals are compatible with hydraulic fluids such as HL, HLP, HFC, and Nitrogen up to 350 bar. This transducer is notable for its operational safety features including high bursting pressure resistance and protection against reversed polarity, overvoltage, and short circuits. It offers an accuracy class of 0.5 with excellent non-repeatability below 0.1%. The wide operating temperature range from -40 to +125°C allows for versatile use across various climatic conditions. Additionally, the HM 20-2X/315-C-K35 holds certifications such as CE and UL along with compliance with RoHS directives for environmental considerations. It also has marine approval from DNV GL suitable for maritime applications. This component series X transducer can handle maximum operating pressures up to 630 bar across its different pressure ratings variants, further demonstrating its adaptability to diverse industrial requirements.

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PRESSURE TRANSDUCER HM 20-2X/315-C-K35

Pressure transducer with analog output 4 … 20, pressure range 0 ... 315 bar, connector 4-pole M12x1 A-coded

Short signal rise time 1 ms for dynamic pressure control. All components in contact with the media are made of stainless steel. High degree of measurement accuracy of 0.5% FS. Excellent overload and bursting behavior.

Unpacked Weight: 0.0611 kg

Measuring pressures in hydraulic systems 8 measurement ranges up to 630 bar Sensor with thin film measuring cell Components that are in contact with the media are made of stainless steel Operational safety due to high bursting pressure, reversed polarity, overvoltage and short-circuit protection Accuracy class 0.5 Excellent non-repeatability < 0.05 % Wide operating temperature range –40 ... +85 °C Marine approval DNV-GL for all variants with current output

Pressure transducers are used to monitor and control hydraulic pressures. They transform the measured pressure into a normalized, linear, electrical output signal.

Thin film measuring cell
Analog output: 4 … 20 mA
Hydraulic connection G1/4
Throttle element in the pressure channel
Connector 4-pole, M12x1, A-coded

Data Sheet	Download Data Sheet
3D CAD	Download 3D CAD
3D CAD	Download 3D CAD

Max. pressure	315
Electrical connection description	Connector, 4-pole, M12 x 1, coding A according to EN 61076-2-101
Productgroup ID	9,10,11,12,13,14
Conformity description	CE – electro-magnetic compatibility 2014/30/EU RoHS Directive 2011/65/EU
Electrical connector	Connector 4-pole, M12x1, A-coded
Display	no
Supply voltage	24 VDC
Weight	0.0611
Seals	NBR
Output signal	4 … 20 mA
Hydraulic fluid	HL,HLP,HFC,Nitrogen (up to 300 bar)
Conformity	CE,UL,RoHS,DNV

01		02		03		04		05	06
HM20	–	2X	/		–		–	K35

01	Pressure transducer	HM20
02	Component series 20 ... 29 (20 ... 29: unchanged installation dimensions and pin assignments)	2X
03	10 bar	10
	50 bar	50
	100 bar	100
	160 bar	160
	250 bar	250
	315 bar	315
	400 bar	400
	630 bar1)	630
04	Current output 4 to 20 mA 2)	C
04	Voltage output 0.1 to 10 V	H
05	Connector, 4-pole, M12x1	K35
06	Without throttle element	ohne Bez.
06	Throttle element (corresponds to 0.3 mm nozzle) 3), 4)	N

1)	Only available with throttle element
2)	With marine approval DNV-GL
3)	Only available for versions with 250, 315, 400 and 630 bar
4)	Highly dynamic effects in like pressure peaks or cavitation in hydraulic systems may damage the measuring cell. For these applications, devices with integrated throttle element [version "-N"] in the process interface have to be used.

Replacement seal ring
Designation	Material number
Seal ring NBR	R900012467

Cable sets or mating connectors are not included in the scope of delivery; please order separately.

General

Component series		2X

Eingangsgrößen

Operating voltage 1)	US		16 … 36 VDC
Residual ripple	UPP		2.5 V (40 to 400 Hz)
Maximum current consumption 2)	Imax	mA	≤ 12
Isolation resistance	R	MΩ	> 100 (500 VDC)
Pressure measuring ranges	pN	bar	10	50	100	160	250	315	400	630	10	50	100	160	250	315	400	630	10	50	100	160	250	315	400	630	10	50	100	160	250	315	400	630	10	50	100	160	250	315	400	630	10	50	100	160	250	315	400	630	10	50	100	160	250	315	400	630	10	50	100	160	250	315	400	630

1)	With cULus: max. of 30 VDC is admissible
2)	With voltage output

Output parameters

Output signal	admissible load	Current	ISig		4 … 20 mA, RA = (US - 8.5 V) / 0.0215 A with RA in Ω and US in V
Output signal	admissible load	Voltage	USig		0.1 … 10 V, RA > 2 kΩ
Setting time (10 ... 90 %)			t	ms	< 1
Accuracy class 1)				%	< 0.5
Temperature coefficient	Zero point and range				< 0.1 % / 10 K
Hysteresis 2)				%	< 0.15
Long-term drift (1 year) under reference conditions				%	< 0.1

1)	Related to the complete measurement range, including non-linearity, hysteresis, zero point and end value deviation (corresponds to the measuring deviation according to IEC 61298-2)
2)	Related to the temperature range -20 … 80 °C

Ambient conditions

Ambient temperature range	ϑ	°C	-40 … +85
Storage temperature range	ϑ	°C	-40 … +100
Hydraulic fluid temperature range	ϑ	°C	-40 … +90

Other characteristics

Pressure port 1)				G1/4 according to DIN 3852 form E, seal ring according to DIN 3869-14
Material	Throttle			1.4305
	Housing			V4A (1.4404), PEI, HNB
	in contact with the medium			1.4542, 1.4305, NBR
Pressure media 2)				HL, HLP, HFC, nitrogen, others upon request
Tightening torque range	Measurement ranges > 400 bar	MA	Nm	20 … 25
Tightening torque range	Measurement ranges ≥ 400 bar	MA	Nm	25 … 30
Anschlussart				4-pole M12 connector at the housing
Type of protection according to EN 60529				IP65 / IP67 with mating connector correctly mounted and locked
Weight		m	kg	0.06
Life cycle				60 million load cycles or 60000 h
Admissible shock and vibration loads according to DIN EN 60068-2-27				15 g / 11 ms / 3 axes
Sine test according to DIN EN 60068-2-6:2008				10 ... 2000 Hz / maximum 10 g / 10 cycles / 3 axes
Noise test according to DIN EN 60068-2-64				20 … 2000 Hz / 14 g RMS / 42 g peak / 24 h / 3 axes
Electro-magnetic compatibility	EMC EN 61000-4-2 ESD			4 kV CD / 8 kV AD with BWK B
	EMC EN 61000-4-3 HF radiated			10 V / m (80 ... 2700 MHz) with BWK A
	EMC EN 61000-4-4 Burst			2 kV with BWK B
	EMC EN 61000-4-5 Surge			1 kV / 42 Ω with BWK B
	EMC EN 61000-4-6 HF line-bound			10 Veff (150 kHz ... 80 MHz) with BWK A
	EMC EN 61000-4-8 Magnetic field 50/60 Hz			100 A/m with BWK A
	EMC EN 61000-4-9 Magnetic field pulsed			1000 A/m with BWK A
	EMC EN 55016-2-1 Interference voltage			0.15 ... 30 MHz, class A, EN 55022
	EMC EN 55016-2-3 Radio interference field strength			30 ... 1000 MHz, class B, EN 55022
Conformity				CE according to the EMC directive
Further tests				cULus-listed