PIN	Designation	Explanation	Application
			Digital		Analog
			UART	SPI	Analog
1	GND	Negative supply voltage	X	X	X
2	RESET_N	Reset (low active)	optional	optional	optional
3	VDD	Positive supplyvoltage	V A	X	X
4	DAC	Analog output	optional	optional	optional
5	SW_OUT	Switch output (open drain)	optional	optional	optional
6	SPI_SEL	Communication mode selection (UART "GND"or SPI"VDD")	force to "GND"	force to "VDD"	force to "GND"
7	SCK	SPI clock,must be connected to GND if SPI is used		X	—
8	CS_N	Chip select (low active)	optional	optional	—
9	TxD/SO_RDY	Digital communication output	X	X	—
10	RxD/SI	Digital communication input,must be connected to GND if not used	X	X	force to "GND"

Output

Output signal

Type	Output
Voltage output (pressure)	10 to 90%VDD (ratiometric,VDD=5.0V DC)
Voltage output (pressure)	10 to 90 %VDDA (absolut,VDDA=2.65 VDC)
Digital output (pressure &temperature)	SPI
Digital output (pressure &temperature)	UART
Switch output (pressure)1)	Switch (via CARMEN)
1) On request

Performance characteristics

Reference operating conditions

• As per DIN EN IEC 62828

• Ambient temperature TA = constant, in range: +23 to +27 °C (+73 to +81 °F)

• Relative humidity ϕ = constant, in range: 5 to 80 % RH.

• Ambient pressure pA = constant, in range: 860 to 1 060 mbar (12.47 to 15.37 psi)

• Position of measuring cell = constant, in range: process isolating diaphragm pointing downwards

(see also the "Influence of installation position" section → ä 11)

• Analog output supply voltage: 4.9 to 5.1 V DC

• Digital output supply voltage: 2.9 to 5.5 V DC

• Reference installation of Endress+Hauser (Components and Mounting instructions SD02509P)

Reference accuracy

The reference accuracy includes the non-linearity [DIN EN 61298-2 3.9], the non-repeatability

[DIN EN 61298-2 3.10] and the pressure hysteresis [DIN EN 61298-2 3.11] in accordance with the

limit point method as per [DIN EN 61298-2].

Long-term stability

≤ 0,1 %/year related to the upper range limit (URL).

Process temperature range

–40 to +125 °C (–40 to +257 °F)

Compensated range –20 to +80 °C (–4 to 176 °F)

Ambient temperature range

–40 to +125 °C (–40 to +257 °F)

Compensated range –20 to +80 °C (–4 to 176 °F)

Storage temperature range

–40 to +125 °C (–40 to +257 °F)

Electromagnetic compatibility (EMC)

No specifications (open system)

Overvoltage protection

6 V DC (maximum voltage for CARMEN ASIC)

Calibration; unit

Designation

Nominal range;mbar

Nominal range;bar

Nominal range;psi

Nominal range;Pa

Nominal range;kPa

Nominal range;MPa

Nominal range;mmH₂O

Nominal range;mH₂O

Nominal range;inH₂O

Nominal range;ftH₂O

Nominal range;mmHg

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