Danfoss DST P92S Pressure Transmitter for SIL-2 Applications

 

DST P92S

The DST P92S OEM pressure transmitter is designed for use in Mobile and Industrial hydraulic applications. The transmitter is suitable for use in a functional safety environment with a requirement of PLd, EN ISO 13849-1: 2015 or AgPLd EN ISO 25119: 2010 or SIL2, IEC 61508:2010, respectively. Further Danfoss holds a third party approval from TÜV to ensure easy implementation into any safety system.

Features

• Designed for use in severe hydraulic applications
• For operating temperature up to 85 °C
• Pressure range 0-10 bar to 0-1200 bar
• Dual output signal: 4-20 / 20 -4 mA or ratiometric 10-90 / 90-10%
• Cyclic diagnostic
• Start up diagnostic
• Wetted parts made of stainless steel
• Designed towards OEM requirements

Approvals and certificates

• PLd DIN EN ISO 13849-1
• SIL2 IEC 61508
• CE marked
• E1 type approval

Specifications

Technical Data

Accuracy (incl. non linearity, hysteresis and repeatability)	< 0.5% FS
Overall accuracy under reference conditions	+/- 1% FS [0 – 85 °c] +/- 1,5% FS [-25 – 0 °c] +/- 2,5% FS [-40 – -25 °c]
Long-run stability	<0,2% FS p.a.
Response time liquids (10 – 90%)	2 ms

 

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Overload and burst pressure

Standard pressure [bar]	40	60	100	160	250	400	600
Overload pressure [bar]	80	120	200	320	500	800	1200
Burst pressure [bar]	400	600	1000	1600	2500	4000	>4000

Environmental conditions

Media temperature range		- 40 – 125 °C
Operating temperature range		-40 – 85 °C
Storage temperature range		-40 – 100 °C
Voltage supply		9 – 32 V DC, alloable ripple @50Hz: 10% (for current output) 5V ±10% (for ratiometric voltage output)
Electrical Protection		Short circuit protected, signal on GND/VCC and reverse polarity protection
Electric Magnetic Compatibility Directive [EMC]		2014/30/EU
EMC		DIN EN 61326-1 DIN EN 61326-2-3 DIN EN 61326-3-1 E1 type approval: All vehicle types with a 12 V or 24 V - electrical wiring and battery (-) at the body
Vibration stability	20 g	EN60068-2-6
Shock mechanical	500 g	EN60068-2-27
Enclosure		1.4301/ PBT-GF30
Material with medium contact		1.4548/Viton
Weight		50 g
Enclosure		IP67

Functional safety

Machinery Directive [MD]	2006/42/EC
IEC 61508:2010	SIL 2	Safety related subsystem, type B
	1oo1 architecture	SFF 95.8% 4-20mA / 93,1% ratiometric (incl. control unit)
	HFT 0	PFH 6.1*10-9 (4-20 mA) / 4.9*10-9 (ratiometric)
EN ISO 13849-1:2015	PL d	CCF 70 points
	Category 2	MTTFd high >100 years
	DC medium (incl. control unit)
Safety function	Safety conversion of the measured pressure into two proportional opposing current signals. Refer also to the Safety guide.

Download Datasheet : Danfoss DST P92S Pressure Transmitter for SIL-2 Applications

Reference : danfoss.com