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Preliminary version 0.6 – December 2016

1/6

LD20 Liquid Flow Sensor Series – PROTOTYPE

Single-Use Flow Sensor for Biomedical Applications



Low flow sensing up to 1200 ml/h (20 ml/min)



Luer lock or barbed fluidic connectors



Millisecond-fast response time

Product Summary

The LD20 liquid flow sensor series enables precise and

reliable measurements of dynamic liquid flow rates

from a few hundred µl/h up to 1200 ml/h bi-

directionally. This sensor has been designed for single-

use applications in the biomedical field. The LD20

series is still being developed. Thus any specification

can be subject to change in the future (performance,

fittings, communication, etc.).

Electrical Interface:

Digital

For more information on communication, please refer

to section 3 of this document (preliminary).

1 Sensor Performance (Preliminary data, subject to change)

The following Table 1 lists preliminary specifications of the current prototypes. Please contact Sensirion if different

specifications are required.

3D-printed samples of the small (LD20-0600) and medium (LD20-1300) LD20 versions are available on request.

Please contact Sensirion.

Parameter

LD20-0600x

LD20-1300x

LD20-2600B

Unit

20 (0.3)

250 (4.2)

1000 (16.6)

ml/h (ml/min)

25 (0.4)

300 (5)

1300 (21.67)

ml/h (ml/min)

Accuracy below full scale

(whichever error is larger)

tbd

tbd

5

tbd

tbd

0.25

% of full scale

Repeatability below full scale

(whichever error is larger)

tbd

tbd

0.5

% of m.v.

tbd

tbd

0.025

% of full scale

(additional error / °C; whichever is larger)

tbd

tbd

0.2

% m.v. / °C

tbd

tbd

0.01

% full scale / °C

tbd

tbd

1.0

% of full scale

Flow detection response time

tbd

tbd

tbd

ms

a

Flow rate at which the sensor output saturates. See section 2 for performance between full scale and saturation point.

b

Measured value

c

Additional accuracy error for temperatures deviating from 23 °C.

d

Maximum additional offset when flow channel is vertical.