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21

ENG

+0300046IE - rel. 1.2 - 14.01.2021

5.  TECHNICAL INFORMATION

5.1  Electrical specifications

Category

Specifications

Signals to central  
controller

Current analogue output

Normal operation: 4 to 20 mA

When exceeding the lower measurement limit: 3.8 mA

When exceeding the upper measurement limit: 20.5 mA

Device fault: ≤ 1.2 mA

Analogue interface fault: > 21 mA

Offline mode / Maintenance signal / Warm-up: steady 3 mA signal

Voltage analogue output

0 to 5 V; 1 to 5 V; 0 to 10 V; 2 to 10 V (selectable)

During a fault , the 1 to 5 V and 2 to 10 V outputs are at 0 V.

Modbus RTU over RS485

Baud rate: 9,600 or 19,200 (selectable)

Start bits: 1

Data bits: 8

Parity: none, odd, even (selectable)

Stop bits: 1 or 2 (selectable)

Retry time: 500 ms

End of message: 3.5 characters

Power supply and relay

Operating voltage

19.5 to 28.5 Vdc; 24 Vac ± 20%, 50/60 Hz

Peak current

1.5 A

Operating current, max.

4 W, 170 mA at 24 Vdc

Transformer

Minimum power: 5 VA

Rated relay power

3 SPDT

1 A at 24 Vac/Vdc, resistive load

Wiring

Power supply

16 to 28 AWG. With 24 to 28 AWG wire, do not exceed a maximum length of 60 metres

Analogue signals and relays 16-28 AWG

Modbus network

Shielded 3-wire cable, twisted pair + earth reference, characteristic impedance 120 Ω, 16 to 24 AWG, maximum 
length 300 metres

Cable gland

M20, cable outside diameter 10-14 mm

M16, cable outside diameter 4-8 mm

Tab. 5.a 

5.2  Mechanical and environmental 

specifications

Dimensions

Enclosure size (W×H×D) (approx.)

Built-in: 168x158x81 mm

Remote, main enclosure: 168x158x70 mm

Remote, sensor enclosure: 116x136x67 mm

Weight (approx.)

Built-in: 643 g

Remote: 732 g

Operating temperature

from -40 to 50 °C

Environmental conditions

Storage temperature

from -40 to 50 °C

Humidity

from 5 to 90% RH, non-condensing

Pressure

From 800 to 1,100 mbars

Altitude

3,050 m above sea level

Enclosure protection rating

IP66

Tab. 5.b 

5.3  Sensitive element

Operating life and calibration requirements

Category

Semiconductor (SC)

Infrared (IR) Electrochemical 

(EC)

Recommended 
maintenance 
interval

6 months after commis-
sioning, subsequently 
every 12 months

12 months.

12 months.

Typical sensor 
operating life

4-6 years

5-7 years

2 years

Tab. 5.c 

WARNING: 

the semiconductor sensitive elements must be 

checked after exposure to significant concentrations of gas, which may 
shorten sensor life and/or reduce its sensitivity.

Response range and resolution

MDL is the lowest detected level of gas concentration. Values below 
the MDL are displayed as zero. Values below zero or above the range 
generate negative or positive saturation conditions, respectively. If the 
gas level is below the negative concentration limit, the sensor signals 
a fault.

Sensor and gas 
technology

Full-scale 
range

MDL

Display 
resolution

Negative gas 
concentration 
limit

Unit

SC, refrigerants

0-1000

50

1

-100

ppm

SC, R290

0-2500

250

1

-500

ppm

EC, R717( NH3)

0-100

5

1

10

ppm

IR, CO

2

 gas

0-10000

500

50

-1000

ppm

Tab. 5.d 

Alarm set points

All alarms must have a threshold greater than or equal to the lower limit. 
The high alarm set point must be higher than the low alarm set point. All 
alarms must have a threshold less than or equal to the full-scale range.

Sensor and gas 
technology

Lower limit

Default low 
alarm

Default high 
alarm

Unit

SC, refrigerants

150

150

500

ppm

SC, R290

400

800

2000

ppm

EC, R717( NH3)

15

50

80

ppm

IR, CO

2

 gas

1500

1500

5000

ppm

Tab. 5.e 

Temperature compensation

The device adopts active temperature compensation for semiconductor 
sensors. Infrared sensitive elements self-adjust for temperature. 
The temperature compensation error is defined at the calibration 
concentration.

Sensor technology

Error

IR, CO

2

 gas

10% FS

SC, refrigerants

20% FS

SC, 1234ZE/R450A

30% FS

EC, R717 (NH3)

15% FS

Tab. 5.f 

Содержание GDWB

Страница 1: ...POWER SIGNAL CABLES TOGETHER READ CAREFULLY IN THE TEXT Gas Leakage Detector Per applicazioni commerciali e industriali leggere Manuale d uso User manual For commercial and light industrial applicati...

Страница 2: ......

Страница 3: ...el portfolio prodotti CAREL CAREL adotta una politica di continuo sviluppo Pertanto CAREL si riserva il diritto di effettuare modifiche e miglioramenti a qualsiasi prodotto descritto nel presente docu...

Страница 4: ...4 ITA 0300046IE rel 1 2 14 01 2021...

Страница 5: ...i interruttori 12 3 6 Posizione e attivazione interruttori 13 3 7 Funzionalit dell App RILEVA 13 4 MANUTENZIONE 17 4 1 Procedura di manutenzione 17 4 2 Calibrazione e Bump Test 17 4 3 Ricerca guasti 1...

Страница 6: ......

Страница 7: ...RILEVA disponibile sia su App Store che su Play Store I rilevatori della serie GLD permettono la conformit con gli standard di sicurezza per la refrigerazione ASHRAE 15 ed EN 378 attraverso allarmi v...

Страница 8: ...0 a 5 V da 0 a 10 V da 1 a 5 V da 2 a 10 V Uscita digitale Modbus RS485 2 8 16 15 1 1 15 15 2 8 MAG 2 REMOTE SENSOR MAG 1 6 10 7 9 5 13 14 12 11 3 4 IN OUT NO COM NC NO COM NC B A GND SH AN GND NO COM...

Страница 9: ...formarsi delle sacche di stagnazione del gas Posizionare i Gas Detector presso i flussi di aria provenienti dai sistemi di ventilazione sia naturale che meccanica se presenti Non posizionare i Gas Det...

Страница 10: ...eve essere invertita Per installazioni in configurazione daisy chain il tipo di tensione restituita ai pin 24 V OUT equivalente al tipo di tensione utilizzata per l alimentazione del dispositivo al pi...

Страница 11: ...i e o distorsioni del segnale Evitare di utilizzare connessioni troppo lunghe quando si collegano gli strumenti al bus seriale La connessione strumento bus non deve superare la lunghezza massima di 1...

Страница 12: ...lia su interfaccia analogica 5 25 V 5 25 V 10 5 V 10 5 V 21 mA Tab 3 c 3 3 Segnale Modbus Il rivelatore di gas della serie GLD Carel fornisce un interfaccia digitale Modbus RTU Tutti i messaggi di sta...

Страница 13: ...mportamento dei rel e gestire le impostazioni delle uscite analogiche Manutenzione verifica del funzionamento di cicalino e LED rel e uscite analogiche Calibrazione sia calibrazione di zero che di fon...

Страница 14: ...zioni Nelsotto men Impostazioni possibileinserireleinformazioniutilizzate per la redazione dei Report di Calibrazione emessi automaticamente dall App in formato pdf al termine di ogni fase di Calibraz...

Страница 15: ...Impostare l Alias del dispositivo Impostare Codice di Sblocco e Password Ripristinare le impostazioni di fabbrica attivabile anche attraverso i pulsanti fisici si veda relativo paragrafo Inoltre si pu...

Страница 16: ...lare l uscita analogica applicando un offset fisso Questa funzione diventa essenziale in caso di uscita analogica in tensione in quanto consente di compensare la caduta di tensione dovuta alla resiste...

Страница 17: ...la di calibrazione 2 Manopola di erogazione 3 Regolatore di flusso regolare a circa 0 3 L min Kit di Calibrazione GDOPZK0000 costituito da 4 Tubo in gomma trasparente 5 Cappuccio plastico Fig 4 a IMPO...

Страница 18: ...D con luce verde continua APP RILEVA 1 Entrare nella sezione dedicata alla Calibrazione premendo il relativo pulsante dalla Scheda Home Scansionare quindi il codice a barre presente sulla bombola del...

Страница 19: ...0x00001000 Anomalia Modbus Errore rilevato nelle comunicazioni Modbus Ciclo di alimentazione Se si ripresenta chiamare l assistenza 0x00002000 Anomalia uscita analogica solo GDWB Errore nell aggiorna...

Страница 20: ...il cavo piatto dal modulo sensore 3 Rimuovere l elemento sensibile installato sul coperchio tenendo l alloggiamento e ruotando in senso antiorario di 90 Fare attenzione a non applicare una forza ecce...

Страница 21: ...ne 3 050 m di altitudine Indice di protezione del contenitore IP66 Tab 5 b 5 3 Elemento sensibile Vita operativa e requisiti di calibrazione Categoria Semiconduttore SC Infrarossi IR Elettrochimico EC...

Страница 22: ...int ppm Rif alla Tabella intervallo gas Setpoint allarme alto soglia in parti per milione impostato dal controller sovrascrivere i valori del sensore locale 201 Ritardo allarme 0 15 Ritardo cicalino a...

Страница 23: ...sensore L intensit di corrente proporzionale alla concentrazione del gas Contemporaneamente l ossigeno dall aria ambiente reagisce sul contro elettrodo A livello elettronico il segnale di corrente vi...

Страница 24: ...Di prossima uscita Semiconduttore R 1233zd E xxxxx Di prossima uscita Semiconduttore R 1270 xxxxx GDWRS01A00 IP66 remota Semiconduttore R 32 02GE3 GDWRS02A00 IP66 remota Semiconduttore R 134a 02GEX GD...

Страница 25: ...iconduttore R 452A 1000 02GO4 GDOPZS1200 Semiconduttore R 452B 1000 02GO5 GDOPZS1300 Semiconduttore R 454A 1000 02GO6 GDOPZS1400 Semiconduttore R 454B 1000 02GO7 GDOPZS1500 Semiconduttore R 455A 1000...

Страница 26: ...26 ITA 0300046IE rel 1 2 14 01 2021 Notes...

Страница 27: ...ewise apply to the controllers serial boards programming keys or any other accessory in the CAREL product portfolio CAREL adopts a policy of continual development Consequently CAREL reserves the right...

Страница 28: ...4 ENG 0300046IE rel 1 2 14 01 2021...

Страница 29: ...the switches 12 3 6 Switch position and activation 13 3 7 RILEVA app features 13 4 CARE MAINTENANCE 17 4 1 Maintenance procedure 17 4 2 Calibration and bump test 17 4 3 Troubleshooting 19 4 4 Sensiti...

Страница 30: ......

Страница 31: ...Store and Play Store The GLD series detector allows compliance with refrigeration safety standards ASHRAE 15 and EN 378 by featuring audible and visual alarms to alert personnel in the event of a ref...

Страница 32: ...o 10 V 1 to 5 V 2 to 10 V Digital output Modbus RS485 2 8 16 15 1 1 15 15 2 8 MAG 2 REMOTE SENSOR MAG 1 6 10 7 9 5 13 14 12 11 3 4 IN OUT NO COM NC NO COM NC B A GND SH AN GND NO COM NC Fig 1 d Compon...

Страница 33: ...reas stairwells pits enclosed corners etc where pockets of stagnant gas may form Position the gas detectors near ventilation air flows both natural and mechanical if present Do not place the gas detec...

Страница 34: ...tion the type of voltage returned to the 24 V OUT pins is the same as the voltage used to power the device at the 24 V IN pin IMPORTANT the manufacturer requires a bump test or calibration to be perfo...

Страница 35: ...binations of signal impedance reflections and or distortions Avoid using excessively long connections when connecting devices to the serial bus The device bus connection must not exceed a maximum leng...

Страница 36: ...V N A 1 9 V N A 3 8 mA Measurement range exceeded 5 12V 5 12V 10 25 V 10 25 V 20 5 mA Analogue interface fault 5 25 V 5 25 V 10 5 V 10 5 V 21 mA Tab 3 b 3 3 Modbus signal The Carel GLD series gas det...

Страница 37: ...manage analogue output settings Maintenance verify operation of the buzzer and LED relays and analogue outputs Calibration both zero and full scale calibration and execution of the bump test generati...

Страница 38: ...p in PDF format at the end of each calibration procedure The information that can be entered includes customer and operator details logo and email address to send the report to The View logs sub menu...

Страница 39: ...e using the physical buttons see the corresponding paragraph Furthermore three specific sections are available Alarms Modbus and Outputs See the following images for reference Fig 3 h Fig 3 i Fig 3 j...

Страница 40: ...the slider to adjust the analogue output by applying a fixed offset This is essential for voltage analogue outputs to compensate for the voltage drop due to cable resistance Possible values from 10 t...

Страница 41: ...e calibration procedure This will avoid the risk of calibration being interrupted and having to repeat the procedure CAUTION read the following notes carefully before starting the calibration procedur...

Страница 42: ...on the cylinder corresponds to the concentration declared on the device label 3 Press the Start offset button to confirm the start of calibration 4 A countdown then begins until calibration is complet...

Страница 43: ...0x00000800 GPIO fault Error detected on the GPIO pin Contact service 0x00001000 Modbus fault Modbus communication error detected Power cycle If it occurs again contact service 0x00002000 Analogue outp...

Страница 44: ...er and disconnect the ribbon cable from the sensor module 3 Remove the sensitive element installed on the cover by holding the housing and turning it 90 anticlockwise Be careful not to apply excessive...

Страница 45: ...0 to 1 100 mbars Altitude 3 050 m above sea level Enclosure protection rating IP66 Tab 5 b 5 3 Sensitive element Operating life and calibration requirements Category Semiconductor SC Infrared IR Elect...

Страница 46: ...ppm See the gas range table High alarm set point thresh old in parts per million set by controller overwrite local sensor values 201 Alarm delay 0 15 Buzzer alarm delay sets the time in minutes that...

Страница 47: ...or The current value is proportional to the concentration of gas At the same time oxygen from the ambient air reacts with the counter electrode At an electronics level the current signal is amplified...

Страница 48: ...Coming Soon Semiconductor R 1233zd E xxxxx Coming Soon Semiconductor R 1270 xxxxx GDWRS01A00 IP66 Remote Semiconductor R 32 02GE3 GDWRS02A00 IP66 Remote Semiconductor R 134a 02GEX GDWRS03A00 IP66 Remo...

Страница 49: ...GO3 GDOPZS1100 Semiconductor R 452A 1000 02GO4 GDOPZS1200 Semiconductor R 452B 1000 02GO5 GDOPZS1300 Semiconductor R 454A 1000 02GO6 GDOPZS1400 Semiconductor R 454B 1000 02GO7 GDOPZS1500 Semiconductor...

Страница 50: ...26 ENG 0300046IE rel 1 2 14 01 2021 Notes...

Страница 51: ......

Страница 52: ...CAREL INDUSTRIES Headquarters Via dell Industria 11 35020 Brugine Padova Italy Tel 39 049 9716611 Fax 39 049 9716600 e mail carel carel com www carel com Agenzia Agency 0300046IE rel 1 2 14 01 2021...

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