Siemens Symaro QSM2100 Manuale utente

Symaro™

Fine Dust Duct Sensors

QSM2100 / QSM2162 / AQS2100

The sensors acquire PM2.5 and PM10 concentrations, relative humidity and

temperature

●Operating voltage AC 24 V or DC 15…35 V

●Signal outputs DC 0...10 V or DC 0...5 V or 4...20 mA adjustable

●Range of use -5…45 °C / 5…95 % r.h. (non-condensing)

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Use

In air ducts of ventilation and air conditioning plants to enhance room comfort and optimize

energy consumption by providing demand-controlled ventilation. The sensor acquires:

●PM2.5 & PM10 concentrations

●Relative humidity of duct air

●Duct air temperature

NOTICE!

●Do not use the sensors as safety devices, such as gas or smoke warning devices!

●Do not use the sensors outdoors!

Type summary

Type

Order number

Description

QSM2100

S55720-S491

Fine dust duct sensor for PM2.5 and PM10

QSM2162

S55720-S492

Fine dust duct sensor for PM2.5 and PM10,

temperature, relative humidity

Order and delivery

When ordering, provide both name and type reference, e.g. fine dust duct sensor QSM2100.

The sensor is supplied complete with mounting flange, cable entry gland M16 and a pre-

installed AQS2100 in fine dust duct sensor.

Accessory

Name

Type

Order number

Filter cap (for QSM2162 replacement)

AQF3101

‒

Fine dust duct sensor module for replacement

AQS2100

S55720-S493

The accessory must be ordered separately.

Product documentation

Title

Document ID:

Mounting instructions (QSM21…)

A6V11892999

Mounting instructions (AQS2100)

A6V11910876

CE declaration

A5W00096641

RCM declaration

A5W00096643

Product environmental declaration

A5W00099435

All documentation can be downloaded at http://siemens.com/bt/download.

Equipment combinations

All systems and devices capable of processing the following sensor signals:

●DC 0...10 V or DC 0...5 V or 4...20 mA

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Functions

The duct sensor acquires PM2.5 & PM10 concentrations. The output value is the moving av-

erage of latest sensor data within 10 s.

The duct sensor acquires the relative humidity in the air duct via its capacitive humidity sens-

ing element whose electrical capacitance changes as a function of relative humidity.

The electronic measuring circuit converts the sensor’s signal to a continuous DC 0...10 V or

DC 0...5 V or 4...20 mA signal, corresponding to a relative humidity range of 0...100 %.

The duct sensor acquires the temperature in the air duct via its sensing element whose elec-

trical character changes as a function of the temperature.

The change is converted to an active DC 0...10 V or DC 0...5 V or 4...20 mA output signal

( 0...50 °C or -35...+35 °C).

Mechanical design

The fine dust duct sensor consists of a housing, a printed circuit board, connection terminals,

a mounting flange, and an immersion rod. The immersion rod of the QSM2162 has a meas-

uring tip.

The bisectional housing consists of a base and a removable cover (snap-on design). The

measuring circuit and the setting elements are located on the printed circuit board inside the

cover, the connection terminals are located on the base.

The humidity and temperature sensing elements are located at the end of the measuring

probe and are protected by a filter cap.

Cable entry is made via the cable entry gland M16 (IP54) supplied with the sensor, to be

screwed into the housing.

Immersion rod and housing are made of plastic and are rigidly connected.

The sensor is fitted with the mounting flange supplied with the sensor. The flange must be

placed over the immersion rod and then secured as per the required immersion depth.

The setting elements are located inside the cover.

PM2.5 and PM10 have same DIP switch settings.

Note

Fine dust (PM2.5

& PM10)

Relative humidity

(QSM2162)

Temperature

(QSM2162)

Setting element

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The sensor has two sets of DIP switches: S1 and S2.

The different DIP switch positions mean the following:

Test mode

V/I output

PM2.5/PM10

range

selection

Output

parameter

selection

Temperature

range selection

Work

mode

Function

‒

OFF

‒

DC 0…10 V

(default)

‒

OFF

‒

DC 0…5 V

‒

OFF

‒

4…20 mA

‒

Back to default

‒

OFF

‒

0…500 μg/m3

(default)

‒

OFF

‒

0…300 μg/m3

‒

OFF

‒

0…100 μg/m3

‒

0…50 μg/m3

‒

OFF

‒

PM2.5 + r.h. +

temperature

(default) 2)

‒

PM2.5 + PM10 +

temperature 2)

‒

OFF

‒

0…50 °C (default) 2)

‒

-35…35 °C 2)

‒

OFF

Continuous work

mode (default)

‒

Smart work mode

‒

OFF

‒

Test MODE 1 1)

‒

OFF

‒

Test MODE 2 1)

‒

OFF

‒

Test MODE 3 1)

‒

Test MODE 4 1)

Note:

1) For detailed information on the test mode, see Activating test function [▶5].

2) These functions are only for QSM2162.

Use the test function to check whether the sensor value inaccuracy is caused by the analog

output error. Users can configure DIP1, DIP6 and DIP7 to check if the actual signal output of

terminals (X1, X2, X3) corresponds to the values defined in Test function active [▶5] table.

Test function of X3 is valid only for QSM2162.

Activating test

function

DIP switch config-

uration

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Test function active

DIP

DIP1 (ON)

DIP6 (OFF)

DIP7 (OFF)

0 V / 0 V

4 mA

5 V / 2.5 V

12 mA

10 V / 5 V

20 mA

DIP1 (ON)

DIP6 (OFF)

DIP7 (ON)

5 V / 2.5 V

12 mA

10 V / 5 V

20 mA

0 V / 0 V

4 mA

DIP1 (ON)

DIP6 (ON)

DIP7 (OFF)

10 V / 5 V

20 mA

0 V / 0 V

4 mA

5 V / 2.5 V

12 mA

DIP1 (ON)

DIP6 (ON)

DIP7 (ON)

5 V / 2.5 V

12 mA

5 V / 2.5 V

12 mA

5 V / 2.5 V

12 mA

PM2.5 calibration mode 1)

Function

OFF

Mode 1 (default)

OFF

Mode 2

OFF

Mode 3

Reserved

Note:

1) Mode 1 is for standard use. Mode 2 and Mode 3 are for advanced application.

●Mode 1: The sensor is calibrated using the TSI device as reference in Arizona A1 dust.

●Mode 2: The sensor is calibrated using the GRIMM device as reference in Arizona A1

dust.

●Mode 3: The sensor is calibrated using the GRIMM device as reference in KCL dust.

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Malfunction

In the following table:

●High means the signal output of terminal is 10 V/5 V/20 mA after 60 s.

●Low means the signal output of terminal is 0 V/0 V/4 mA after 60 s.

Malfunction

Signal output

Product

X1 (PM2.5)

X2 (PM10)

X3 (Temperature)

QSM2100

QSM2162

PM2.5

communication

error

High

‒

√

High

‒

√ *)

‒

PM2.5 sensor

module

replacement

warning

High

Low

Normal output

‒

√

High

Low

‒

√

‒

Temperature

sensor fault

Normal output

High

‒

√

Notes:

*) If the signal output of X1 & X2 is 10 V or 20 mA, the cause of the error is one of the follow-

ing:

●The selected measuring range of PM2.5 & PM10 is below the measured PM2.5 or PM10

value. E.g., if the selected measure range is 0…50 μg/m3, but the measured PM2.5 or

PM10 value is 100 μg/m3, the signal output of X1 & X2 will be 10 V or 20 mA. Selecting a

higher range resolves this error.

●If the signal output is still 10 V or 20 mA after changing the selected measuring range,

the cause is a PM2.5 communication error.

In the following table:

●High means the signal output of terminal is 10 V/5 V/20 mA after 60 s.

●Low means the signal output of terminal is 0 V/0 V/4 mA after 60 s.

Malfunction

Signal output

X1 (PM2.5)

X2 (r.h.)

X3 (Temperature)

PM2.5 communication

error

High

PM2.5 sensor module

replacement warning

High

Low

Temperature sensor fault

Normal output

High

Low

Humidity sensor fault

Normal output

High

Normal output

Sensor data refresh frequency

The sensor data refresh frequency only applies to smart work mode (DIP8 = ON). It is de-

fined as per the real-time concentration of PM2.5 & PM10 and the interval is 3…8 min. The

data is updated under the following conditions:

Interval

8 min

7 min

6 min

5 min

4 min

3 min

Continuous

Concentration

Differential between real-time and last measurement

< 100 μg/m3

±2 μg/m3

±4 μg/m3

±6 μg/m3

±8 μg/m3

±10 μg/m3

±12 μg/m3

Bigger

> 100 μg/m3

±2 %

±4 %

±6 %

±8 %

±10 %

±12 %

Bigger

QSM2100 (PM2.5

+ PM10)

QSM2162 (PM2.5

+ PM10 + temper-

ature)

QSM2162 (PM2.5

+ r.h. + tempera-

ture)

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Notes

Security

CAUTION

National safety regulations

Failure to comply with national safety regulations may result in personal injury and property

damage.

●Observe national provisions and comply with the appropriate safety regulations.

Engineering

Powering the sensor requires a transformer for safety extra low-voltage (SELV) with sepa-

rate windings for 100 % duty. When sizing and protecting the transformer, comply with all lo-

cal safety regulations.

When sizing the transformer, consider the sensor's power consumption.

For correct wiring, see the related device data sheets.

Observe all permissible line lengths.

Cable routing and cable selection

Note that when routing cables, the longer the cable runs and the closer the cables, the

greater the electrical interference. Use shielded cables in EMC-prone environments.

Twisted pair cables are required for both secondary supply lines and signal lines.

Mounting

To ensure degree of protection IP54, the sensor must be fitted with the cable entry pointing

downward!

Mount the sensor where it can be easily accessed by service.

●If used after humidifier, a certain distance is required between humidifier and sensor, so

that the vapor or mist generated by the humidifier can evaporate before reaching the

sensor. This distance is marked on the diagram as BM. The minimum distance between

the humidifier and the sensor must be no less than BM.

●Avoid any impact or shock to the sensing elements in the immersion rod.

●To avoid sunlight damage, do not mount the sensor on a rooftop. To ensure correct op-

eration, the sensor’s ambient temperature must be in the range of -5…45 °C.

Mounting location

and orientation

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●The air inlet must be placed facing the air flow in order to achieve the uniformity and ac-

curacy expected.

●Do not install the sensor in a vertical duct.

Mounting instructions are enclosed in the package.

Mounting instruc-

tions

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Replacing AQS2100

NOTICE! Only trained engineers may replace the sensor module.

The sensor module must be replaced under the following conditions:

●QSM2162 (PM2.5 + r.h. + temperature): An output signal of 10 V/5 V/20 mA is provided

at signal outputs X1 and X2 and an output signal of 0 V/4 mA at signal output X3.

●QSM2100/QSM2162 (PM2.5 + PM10 + temperature): An output signal of

10 V/5 V/20 mA is provided at signal output X1 and an output signal of 0 V/4 mA at sig-

nal output X2.

Replacing the sensor module:

NOTICE! As the replacement on QSM2162 and QSM2100 is identical, the steps to re-

place the QSM2162 sensor module serve as an example.

1. Detach the sub-housing from the main housing.

CAUTION! Avoid touching any exposed electrical elements.

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2. Remove the module by hand.

3. Replace the module by the new one.

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