S+S Regeltechnik AERASGARD RCO2-W, AERASGARD RLQ-CO2-W, AERASGARD RFTM-LQ-CO2-W, AERASGARD RTM-CO2-SD User Manual

AERASGARD® RCO2 - W ⁄ RLQ - CO2 - W ⁄ RFTM - LQ - CO2 - W ⁄ RTM - CO2 - SD

The maintenance-free microprocessor-controlled room sensor CO

content of th e air wit hin a range of 0...2000 ppm and the temp erature within a range of 0...+50°C. The measured values are convert ed into

stand ard signals of 0 -10 V. The maintenance-free microprocessor-controlled room sensor

(can be deacti vated via DIP sw itch es) qualit y (VOC) in one of t hree sensiti vity levels that can b e selected LOW / ME DIUM (default ) / HIGH, tem perature within a range of 0...+50°C as well as relative humidity of 0...100 % r.H. The measured values are c onverted into standar d signals of 0 -10 V oder 4...20 m A (selectable via DIP switches). As an option, the measured values can be shown continuously in the illuminated display.

Elegant enclosure mad e of plastic, wit h snap- on lid, base with 4-hole attachmen t, for installation on vertically or horizontally inst alled in-wall flush boxes, with predet ermined breaking point for on-wall cable entry.

The relative humidity (% r.H.) quotient of water v apour p artial pressure divided by the sat urat ion vapour pressure a t the respect ive gas t emperature. A digital, long-t erm st able sensor used as measu ring element for relative air humidity and temperature guarantees exact measure ment results. The air qualit y is determined based on a (VOC) gas mixture sensor. The CO technology).

is used fo r detecting the over all roo m climat e. It measures CO2 within a range of 0...2000 ppm o r 0...5000 ppm, air

AERASGARD

AERASGARD® R FTM - LQ - CO2 - W and

RTM - CO2 - SD with au toma tic

content of th e air is measured using an optical NDIR senso r (non-dispersive infra-red

calibration (fixed)

RCO2 - W / RLQ - CO2 - W

Rev. 2018 - V27 GB

is used fo r detecting the

with automatic calibration

TECHNICAL DATA

Voltage supply: 24 V AC ⁄ DC (± 10 %) Power consumption:

Outputs:

Relay outpu t:

HUMIDITY

Sensors:

Measur ing ran ge, humid ity: 0...100 % r. H. Opera ting range, humidity: 0...95 % r. H. (without d ew for matio n) Deviation, humidity: typic ally Outpu t, humi dity: 0 -10 V

TEMPERATURE

Measur ing ran ge, temp eratu re: 0...+ 50 °C Opera ting ra nge, tem perat ure: 0...+ 50 °C Temperat ure de viatio n: ± 0.2 K at +2 5 °C Output, temperature:

AIR QUALITY (VOC)

Sensor, VOC : VOC sensor (metal oxide) (VOC = volatile orga nic compounds),

Measur ing range, VOC : 0...100 % air q uality; referred to calibrating gas;

Outpu t, VOC : 0 -10 V (0 V = clea n air, 10 V = pollute d air)

Measur ing accuracy, VO C : ± 20 % of final value (referred to calibrating gas) Service life: > 60 months (under normal load condit ions)

CARBON DIOXIDE

Sensor, CO2: optical NDIR s ensor (non-dispersive inf ra-red technology),

Measuring range, CO2:

Output, CO

Measur ing accuracy, CO Temperature dependence, CO

(CO2)

: ± 30 ppm ± 3 % of me asured value

RCO2 - W ⁄ RTM - CO2 - SD :

< 1.5 W ⁄ 24 V DC t ypical; < 2.9 VA ⁄ 24 V AC typical; peak curr ent 20 0 mA

RLQ - CO2 - W ⁄ RFT M - LQ - CO2 - W :

< 4.4 W ⁄ 24 V DC typical; < 6.4 VA ⁄ 24 V AC typical; peak curr ent 200 mA

RTM - CO2 - SD Rxx - CO2 - W 0 -10 V or 4...20 mA, working r esistan ce < 800 Ω

(selectable v ia DIP switches, select ed variant applies for all outputs), with off set po tentiomet er (± 10 % of the measu ring range)

RTM - CO2 - SD Rxx - CO2 - W

(assign ment selecta ble via DIP switches, switchpoint adjustable)

digital humidity sensor with integrated temperature sensor,

low hysteresis, high long-term stability

± 2.0 %

4...20 mA (select able via DIP switches)

RTM - CO2 - SD Rxx - CO2 - W 0 -10 V or 4...20 mA (selectable via DIP swit ches)

with ma nual calibrat ion (via zero button) and with au toma tic calibration (can be deactivat ed via DIP switches)

multi-range switching

VOC sensitivity low, medium, high

(selectable v ia DIP switches, switchpoin t can be adjusted from 0...100 % of the output signal)

with ma nual calibrat ion (via zero button),

RTM - CO2 - SD Rxx - CO2 - W

RTM - CO2 - SD Rxx - CO2 - W 0 -10 V or 4...20 mA (selectable via DIP swit ches)

: ± 5 p pm ⁄ °C or ± 0 .5 % of mea sured v alue ⁄ °C

(whichever is higher) (continued on next page!)

0 -10 V ( fixed)

without changeover contact with potential-free

(20...80 % r. H.) at +25 °C, o ther wise ± 3.0 %

0 -10 V ( fixed)

(selectable v ia DIP switches)

with automatic calibration (fixed) with au toma tic calibration (can be deactivat ed via DIP switches)

0...20 00 pp m (f ixed )

0...20 00 pp m or 0...5000 ppm (select able via DIP swit ches) 0 -10 V ( fixed)

changeover contact

4...2 0 mA

(24 V / 1 A)

AERASGARD® RCO2 - W ⁄ RLQ - CO2 - W ⁄ RFTM - LQ - CO2 - W ⁄ RTM - CO2 - SD

Rev. 2018 - V27 GB

TECHNICAL DATA

Press ure dep endenc e: ± 0.13 % ⁄ mm Hg Long-term stability: < 2 % in 15 years Gas exchange: by diffusion Ambie nt temp eratu re: 0...+ 50 °C Warm up time: approx. 1 hour Response time: < 2 minutes Electrical connection: 0.14 - 1.5 mm Enclosure: plastic, material ABS, colour pure white (similar to R AL 9010) Dimensi ons: 98 x 98 x 33 mm (Ba ldur 2) Installation: wall mounting or on in-wall flush box, Ø 55 mm, base with 4 holes,

Prot ection class: III (acc ording to EN 60 730) Prot ection type: IP 30 (ac cording to EN 60 529) Standards: CE conf ormity, elect romagnetic compa tibility according t o EN 61 326,

Optional:

AERASGARD® RT M - CO2 - SD AERASGARD® RCO2 - W AERASGARD® RLQ - CO2 - W AERASGARD® RFTM - CO2 - W

(continued)

, via screw terminals

for at tachment to vertically or horizontally installed in-wall flush boxes for rear cable entry, with predet ermined breaking point for cable en try f rom top ⁄ bottom in case of plain on-wall installation

EMC Directiv e 2014 ⁄ 30 ⁄ EU, Lo w Voltage Directive 2014 ⁄ 35 ⁄ EU

display with illumination,

actual humidity, actual temp erat ure, air quality and / or the actual CO

two li ne, cut out app rox. 36 x 15 mm ( W x H), for displaying

content

Room temperature and CO2 sensor, Standard

Room CO2 sensor, Premium

Room air quality (VOC) and CO2 sensor, Premium

Multifunctional room sensor

for humidity, temperature and CO2 content, Del uxe

AERASGARD® RF TM - LQ - CO2 - W

Multifunctional room sensor

for humidity, temperature, CO2 content and air quality (VOC), D eluxe

Type ⁄ WG02 Measuring Range

RT M - CO2 - SD

RTM-CO2-SD-U – 0...+5 0 °C 0...20 00 pp m –

RCO2 - W

RCO2-W

(without Display)

RCO2- W-D IS PL AY – – 0...2000 ⁄ 50 00 ppm – W ■ 1501-61B0-7321-200

RLQ - CO2 - W

RLQ-CO2-W – – 0...2000 ⁄ 50 00 ppm 0...100 % W 1501-61B1-7301-200 RLQ-CO2-W DISPLAY – – 0...20 00 ⁄ 5000 p pm 0...100 % W ■ 1501-61B1-7321-200

RFTM - C O2 - W

RFTM-CO2-W 0...100 % r.H. 0...+50 °C 0...2000 ⁄ 50 00 ppm – W 1501-61B6-7301-200 RFTM-CO2-W DISP LAY 0...100 % r.H. 0...+50 ° C 0...2000 ⁄ 500 0 ppm – W ■ 1501-61B6-7321-200

RFTM - L Q - CO2 - W

RFTM-LQ-CO2-W 0...100 % r.H. 0...+ 50 °C 0...200 0 ⁄ 5000 pp m 0...100 % W 1501-61B8-7301-200 RFTM-LQ-CO2-W Outputs:

Equipment:

Not e:

Humidity Temperature CO

– – 0...2000 ⁄ 50 00 ppm – W

DIS PL AY

0...100 % r.H. 0...+50 °C 0...2000 ⁄ 50 00 ppm 0...100 % W ■ 1501-61B8-7321-200

0 -10 V or 4. ..20 mA

Standard room sensor

W = changeover contact

This unit

(selectable via DIP swi tches, select ed variant applies for all outputs) –

must not

be used as safet y-relevant device!

(fixed)

(switchable)

RTM - CO2 - SD

– Standard room sensor

with fixed output 0 -10 V!

RT M - CO2 - SD

Equipment

VOC Display

without changeover contact !

Item No.

(Baldur 2)

–

1501-61B2-1001-200

see

RCO2-W ⁄ RCO2-SD

AERASGARD® RCO2 - W ⁄ RLQ - CO2 - W ⁄ RFTM - LQ - CO2 - W ⁄ RTM - CO2 - SD

Rev. 2018 - V27 GB

Schematic diagram

+UB 24V AC/DC

–UB GND

Output CO

in ppm

1 2 3

Outputs

air quality (VOC)

temperature in °C

humidity in % r.H.

121113

SET REL.

COM

NC = Normally Closed COM = Common NO = Normally Open

DIP switches (Baldur 2)

DIP ON

4 5

123 456 789

VOC CO² Mode

relay switch point

ON ON

OFFSET

r.H.°C

RFTM - L Q - CO2 - W

VOC

Plug for

sensor

display

Reset button

VOC VOC

CO² CO²

ZERO

RFTM - L Q - CO2 - W

VOC sensitivity DIP 1 DIP 2

LOW OFF OFF

O N

MEDIUM (default) HIGH OFF

automatic zero point DIP 3

VOC

OFF

O N

deactivated OFF activated (default)

content DIP 4

O N

0...2000 ppm (default) OFF

0...5000 ppm

automatic zero point DIP 6

O N

deactivated OFF activated (default)

O N

Relay assignment DIP 7 DIP 8

CO2 (default): 600...1900 ppm / 900...4700 ppm OFF OFF

O N

VOC: 10...95 % Temperature: +5...+4 8 °C OFF Humidity: 10...95% r.H.

OFF

O N

O N O N

Output DIP 9

Voltage 0 -10 V (default) OFF Cur ren t 4...2 0 mA Note:

DIP 5

is not assigned!

O N

Schematic diagram

+UB 24V AC/DC

–UB GND

Output CO

1 2 3

Outputs

temperature in °C

free

in ppm

free

RTM - CO2 - S D

4 5 6

Reset button

CO² ZERO

Mounting and Installation

ATTENTION!

The minimum CO MR = 0...5000 pp m) to the concentration and the flow velocity of the air surr ounding the sensor, the reaction of the device to the change of concentration may take place with a delay. It is essential to choose an installation location for t he device in which t he air st ream f lows around t he sensor. Otherwise the gas exchange may be considerably delayed or prevented.

Automatic calibration of the carbon dioxide measurement – ABC logic (default)

The automatic background logic is a self-calibrating mechanism that is suitable for use in applications in which the CO2 concentration drops to f resh air level (350 - 400 ppm) at least three times in 7 days. This should t ypically occur during times in w hich rooms are unoccupied. T he sensor reaches its nor mal accuracy after 24 hours of continuous operation in an envir onment that has been subjected to a fresh air supply of 4 00 ppm CO deviation errors remain minimal if the sensor is exposed to fresh air at least 4 times within 21 days. The ABC logic needs continuous oper ating cycles of more than 24 hours to operate correctly.

Manual calibration of carbon dioxide measurement

Manual calibration can be carried out independently of the DIP switch position (ABC logic).

Sufficient fresh air (CO2 content = 500 ppm) must be provided before and after the calibration procedure!

The calibration procedur e is started by pressing the “ This is signalled by t he flashing LED or the countdown timer on the display ( Then calibration takes place. During t his phase, the LED is const antly active and a 60 0-second countdown runs on the display The LED is deactivat ed after successf ul calibration.

Automatic calibration of carbon dioxide measurement (default)

Within a period o f approx. 4 weeks, the minimum output value for air qualit y is saved. Aft er this period, the output signal is standardised to the zero point. T he maximum amount of correction per interval is limited. Long-term drifts and the operation-relat ed ageing of the sensor element are thus completely eliminated.

Manual calibration of air quality

Manual calibration can be carried out independently of the DIP switch position.

Sufficient fresh air must be provided befor e and af ter the calibration proc edure!

We recommend a fresh air supply of at least two hours bef ore the calibration process.

General information on air quality

The ser vice life of the sensor depends on its functional principle and the type and concentration of pollutant gas burden. T he sensitive layer of the sensor element r eact s with all volatile organic compounds and is therefore modified in its electrical properties. This procedure leads to an of fset of the characteristic line. When measuring the air quality, the general condition of the air quality is recorded. Whether the air quality is “good” or “bad” depends on the individual interpretation of each individual. Dif ferent pollution burdens and concentrations influence the air quality signal (0 - 10 V) in different ways. Examples are cigarett e smoke, deodorant sprays, cleaning agents and various adhesive materials for floor and wall coverings, as well as dyes. Increased levels of solvents, nicotine, hydrocarbons, aerosol propellants, etc. intensify t he wear/ageing of the sensor element. Especially at high pollutant gas burdens, even when the devices are idle (transpor t and st orage) the zero point is adjusted. This must be corrected on-site depending on the specific c onditions or basic burdens. Air quality measuring instruments from various manufacturers cannot be compared directly with each other because of the different functional principles, the pre-set basic burden (zero point) and the permitted burden (amplification/sensitivity). The devices are set or calibrated accor ding to t he specifications of the sensor manufacturer. Here, a zero point and end value, and therefore a maximum load, are established. In special circums tances, ther e is an overrun of the measuring r ange or an excessively high basic burden on the devices (outgassing carpets, wall paint, etc.) In order to enable a measurement or distinction of dif ferent air qualities, t he devices must be configured by the client in accordance with the on-site conditions which do not correspond to the function domain and thus the factory calibration. Here, it should be noted that the factory calibration will be lost and technical data compliance can no longer be guaranteed.

concentration of outdoor air amounts to approx. 350 ppm (output voltage = 1.75 V a t M R = 0...2000 ppm or 0.7 V at

in leafy, hardly industrialised areas. Gas inter-exchange in the sensor element happens by diffusion. Depending on the changes

Reset CO2” (for approx. five seconds).

Reset VOC

AUTO 0

” button (for approx. five seconds).

AUTO 0

CAL 0

. The

Mounting and Installation

Putting in operation

After swit ching on the device, a self-test and tempering period follows. This procedure tak es 30 - 50 minutes,depending on the ambient conditions. During t his time t he output analogue voltage differs fr om the actual measured value.

Switching point setting

A potential-f ree changeover con tact is available as a switch output. A switching point bet ween 10 % and 95 % of the measuring range can be selected using the SET potentiometer. The 10 % value is added to the fresh air limit of 400 ppm for CO2. (600...1900 ppm with MR = 0...2000 ppm or 900...4700 ppm with MR = 0...500 0 ppm). With other measurands, the corresponding lower limit is used directly as a basis. (VOC: 10...95 %, Temper atur e: +5...+48 °C, Humidity: 10...95% r.H.) The assignment of the switch output to measurand is done via DIP swit ch (DIP 7 and DIP 8).

Offset

Each measuring channel has a separate offset potentiometer for subsequent adjustment of the measurement. The adjusting range is ± 10 % of the measuring range.

Display

In the first line, t he ( CO2 in

ppm

are displayed in a cyclical series.

In the second line, t he (full ● = relay energised; empty ○ = relay de-energised) follow ed by the corresponding (C for CO2; V for VOC; T for temperature; H for relative humidity in and the

switchpoint value

measurements

, VOC in %, temperature in °C, relative humidity in

switching status of the r elay

with the corresponding

indicator

is shown on the right.

units

is shown on the left as a cir cuit

% r.H .

)

% r.H .

)

Mounting and Installation

SUPPLY VOLTAGE :

For operating voltage reverse polarity protection, a one-way rectifier or rever se polarity protection diode is integrated in t his device variant. This internal one-w ay rec tifier on AC supply voltage.

The output sig nal is to be tapped by a measuring instrument. T he output signal is measured her against zer o potential (O V) of the input voltage!

When this device is oper ated o n

DC supply voltage

, the operating voltage input UB+ is to be used for 15...36 V DC supply and UB – or GND for ground wire!

Connecting scheme

Power supply

AC 24V~ 0V DC 15-36V = GND

Circuitry

Output

Individual operation

0V/GND

When se veral devices are supplied by one 24 V be ensur ed tha t all ”positive“ operating voltage inp ut ter minals (+) of t he field devices are connected with each other and all ”negative“ operating voltage input terminals (–) (= reference potential) are connected together (in-phase con nection of field devices). All outputs of field devices must be reference d to the same pot ential!

In case of r ever sed polarity at one field device, a supply volt age shortcircui t would be caused by that d evice. The consequential short- circuit current flo wing th rough this field device may cause damage to it.

Therefore, pay attention to correct wiring!

AC voltage supply

, it is to

Connecting scheme

Power supply

AC 24V~ 0V DC 15-36V = GND

Parallel operation

Circuitry Circuitry

Output

0V/GND

Output

0V/GND

Humidity table

MR: 0...100 % r. H.

r.H.

in V

0 5

0.5 4.8

1.0 5.6

1.5 6.4

2.0 7.2

2.5 8.0

3.0 8.8

3.5 9.6

4.0 10.4

Continued at t he righ t ... 100 10.0 20.0

4.5 11.2

in mA

0 4.0

r.H.

50 55 60 65 70 75 80 85 90 95

in V

in mA

5.0 12.0

5.5 12.8

6.0 13.6

6.5 14.4

7.0 15.2

7.5 16.0

8.0 16.8

8.5 17.6

9.0 18.4

9.5 19.2

Temperature table

MR: 0 ...+50 ° C

°C U

0 5 10 15 20 25 30 35 40 45 50 10.0 20.0

in V

in mA

0 4.0

1.0 5.6

2.0 7.2

3.0 8.8

4.0 10.4

5.0 12.0

6.0 13.6

7.0 15.2

8.0 16.8

9.0 18.4

General notes

–

This device may only be used in pollutant-free non-precipitating air without above-atmospheric or below-atmospheric pressure at the sensor element.

– On outdoor and duct sensors, the sinter filter of the senor element protects the humidity sensor against potential dust exposure.

In case o f pollution ⁄ contamination, this fil ter should be clean ed on a re gular b asis.

– Dust and pollution falsify measurement results and are to be avoided. Slight pollution and dust sediments can be removed by using compressed air.

– Touching the humidity element is under any circumstances to be avoided, as that would result in considerable mismeasurements.

– In c ase of pollu tion, we rec ommend cleaning and reca libratio n in the f act ory.

– In a ny cas e, the sensor must not get in cont act w ith c hemicals or o ther cleaning agents.

– The air qualit y sign al “good“...“bad “ is represe nte d by the output signal 0 -10 V or 4...20 mA.

– The dev ice operat ing ra nge covers 10 ... 95 % rel ati ve humidit y respect ively 0 ...+50 °C.

Beyond that range, mismeasurements or increased deviations will occur.

– The chemical sensor is a consumable. The lifetime of the sensor depends on nature and concentration of the pollutant gas burden.

– When several sensors ar e connected to one volt age su pply o f 24 V AC, corre ct polarity must be regard ed as other wise the alternat ing volt age

source may be short-circuited.

– The out put s are sh ort -circuit pro of. App lying over vol tag e or vol tage suppl y to the output will des tro y the de vice .

– If this devic e is operated beyond the s peci fied r ange, all war ranty cla ims ar e for feited.

Our “General Terms and Conditions for Business“ together with the “General Conditions for the Supply of Products and Services of the Electrical and Electronics Industry“ (ZVEI conditions) including supplementary clause “Ext ended Retention of Title“ apply as the exclusive terms and conditions.

In additionIn addition, the following points are to be observed:

– These in str uct ions must be r ead be fore inst alla tion a nd put ting in operation and all not es pro vided ther ein ar e to be regarded!

– Devi ces must onl y be connect ed to safety ex tra-lo w voltage and under dead-vol tage condi tion. To avoid damages and err ors the dev ice (e.g. b y voltage

induction) shielded cables are to be used, laying parallel with current-carr ying lines is to be avoided, and EMC directives are to be observed.

– This de vice shall only be used for its intended pur pose . Respecti ve safet y regulations is sued by the VDE, the s tat es, their control au thor ities, the TÜV

and the l ocal energ y supply company mu st be ob ser ved. T he purchase r has to a dhere to the building and safety regulations and has t o prevent perils of any k ind.

– No warranties or liabilities will be assumed for defects and damages arising from improper use of this device.

– Conseq uent ial damages c aused by a fault in this dev ice ar e excluded from warran ty or liabil ity.

– These devices mus t be ins tall ed by au thor ised s pecialists onl y.

– The technical data and connecting conditions of the mounting and operating instructions delivered together with the device are exclusively valid.

Deviations from the catalogue representation are not explicitly mentioned and are possible in terms of technical progress and continuous improvement of our products.

– In c ase of any modific ati ons mad e by the u ser, all wa rranty claims are forfeited.

– This dev ice must not be installed clos e to hea t sour ces (e.g. radiators) or be ex posed to their heat flo w. Dire ct sun i rrad iation or heat irr adia tion b y

similar sources (powerful lamps, halogen spotlights) must absolutely be avoided.

– Operating this device close to other devices that do not comply with EMC directives may influence functionality.

– This dev ice must not b e used f or monitor ing applica tions, which ser ve th e purpose of prot ect ing per sons against haz ards o r injur y, or as an EMER

GENCY S TOP swit ch for s yst ems or machin ery, or for any othe r simil ar saf ety-r elev ant pu rpos es.

– Dimensions of enclosures or enclosure accessories may show slight tolerances on the specifications provided in these instructions.

– Mo dificat ions o f thes e records are not p ermi tt ed.

– In c ase of a complaint , only c omplete de vices returned in original p acking wil l be accepted.

These instructions must be read befor e inst allation and putting in operation and all notes provided therein are to be r egarded!

S+S Regeltechnik AERASGARD RCO2-W, AERASGARD RLQ-CO2-W, AERASGARD RFTM-LQ-CO2-W, AERASGARD RTM-CO2-SD User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual