SDP501 datasheet(2/10 Pages) ETC2

2 / 10 page

www.sensirion.com

Version 1.9 – July 2015

2/10

1. Sensor Performance

1.1

Physical specifications1

1 Unless otherwise noted, all sensor specifications are valid at 25°C with Vdd = 3.3 V and absolute pressure = 966 mbar.

2 The SDP50x/SDP51x sensors can detect negative differential pressures in the range of -500 to 0Pa. A negative differential pressure is represented

by a negative value. The accuracy of the negative differential pressure is not specified and might have significant inter-sensor variation.

3 Please see chapter 5.3 for details.

4 See Application Note for response times with other resolutions, e.g. 1.3 ms with 10 bits.

5 With 12-bit resolution; includes repeatability and hysteresis.

6 Total accuracy/repeatability is a sum of zero-point and span accuracy/repeatability.

Parameter

SDP600-500Pa

SDP610-500Pa

SDP600-125Pa

SDP610-125Pa

SDP600-25Pa

SDP610-25Pa

SDP601

SDP611

SDP500

SDP510

SDP501

SDP511

Short Description

Standard

Low DP

Lowest DP

“Mass Flow”

Low cost

“Mass Flow”

Calibrated range2

– 500 Pa

to + 500 Pa

(± 2.0 in. H2O)

– 125 Pa

to + 125 Pa

(± 0.5 in. H2O)

– 25 Pa

to + 25 Pa

(± 0.1 in. H2O)

– 500 to + 500

(± 2.0 in. H2O)

0 Pa

to +500 Pa

(0 to 2.0 in. H2O)

Temperature-

compensation

yes

mass flow3

yes

mass flow3

Resolution

12 bits preset4 (adjustable from 9 to 16 bit)

Zero point accuracy5,6

0.2 Pa

0.1 Pa

0.2 Pa

Span accuracy5,6

3% of reading

4.5% of reading

Zero point

repeatability5,6

0.1 Pa

0.05 Pa

0.03 Pa

0.1 Pa

Span repeatability5,6

0.5% of reading

Offset shift due to

temperature variation

None

(less than resolution)

Span shift due to

temperature variation

< 0.5% of reading per 10°C

Offset stability

< 0.1 Pa/year

Response time4

4.6 ms typical at 12-bit resolution

Warm-up time for first

reliable measurement

Typ. 50 ms

(first measurement typically after 16 ms)

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