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Sentera Controls RXC-G Mounting And Operating Instructions

Room co2 sensor / switch
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RXC
ROOM CO2
SENSOR / SWITCH
Mounting and operating instructions

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Summary of Contents for Sentera Controls RXC-G

  • Page 1 ROOM CO2 SENSOR / SWITCH Mounting and operating instructions...

  • Page 2: Table Of Contents

    ROOM CO2 SENSOR / SWITCH Table of contents SAFETY AND PRECAUTIONS PRODUCT DESCRIPTION ARTICLE CODES INTENDED AREA OF USE TECHNICAL DATA STANDARDS OPERATIONAL DIAGRAMS WIRING AND CONNECTIONS MOUNTING & OPERATING INSTRUCTIONS IN STEPS MODBUS REGISTER MAPS VERIFICATION OF INSTALLATION INSTRUCTIONS TRANSPORT AND STOCK KEEPING INFORMATION WARRANTY INFORMATION AND RESTRICTIONS MAINTENANCE MIW-RXC-EN-000 - 31 / 07 / 2015...

  • Page 3: Safety And Precautions

    ROOM CO2 SENSOR / SWITCH SAFETY AND PRECAUTIONS Read all information, the datasheet, mounting instructions and wiring scheme before working with the product. For personal and equipment safety, and for optimum product performance, make sure you entirely understand the contents before installing, using, or maintaining this product. For safety and licensing (CE) reasons, unauthorised conversion and / or modifications to the product are not permitted.

  • Page 4: Product Description

    It provides four pre-defined ranges and one user-definable range. The unit is equipped with Modbus RTU (RS485) communication and has an analogue output and a relay output. ARTICLE CODES Code Supply Connection RXC-G 15—24 VAC ± 10 % 3 - wire 18—34 VDC RXC-F 18—34 VDC 4 - wire INTENDED AREA OF USE ■...

  • Page 5: Operational Diagrams

    ROOM CO2 SENSOR / SWITCH OPERATIONAL DIAGRAMS Analogue output [VDC] Relay output rel on rel off SP-hyst SP 2000 , [ppm] min. max. , [ppm] 2000 range range WIRING AND CONNECTIONS Positive DC voltage / AC ~ Ground / AC ~ Modbus RTU (RS485) signal A Modbus RTU (RS485) signal /B Analogue output (0—10 VDC / 0—20 mA) Ground...
  • Page 6 ROOM CO2 SENSOR / SWITCH Do the wiring according to the wiring diagram (see Fig.  3) using the legend information from section “Wiring and connections”. Fig. 3 Wiring and connections Relay 1 contacts Normally open Common Normally closed Analogue output 0—10 VDC / 0—20 mA Power supply 15—24 VAC ±...
  • Page 7 ROOM CO2 SENSOR / SWITCH To reset the Modbus settings, put and hold jumper P1 for 20 seconds. (See Fig. 8 Modbus reset jumper.) To select the setpoint, use trimmer VR1 (Fig. 9). Fig. 8 Modbus reset jumper Fig. 9 Setpoint trimmer 5 4 3 2 1 Put and hold for 20 seconds Close the enclosure and fix the cover.

  • Page 8: Modbus Register Maps

    ROOM CO2 SENSOR / SWITCH MODBUS REGISTER MAPS INPUT REGISTERS Data type Description Data Values Reserved, returns 0 level unsigned int. Actual CO level 0—2.000 500 = 500 ppm 5-10 Reserved, returns 0 Analog output value signed int. Value of the analog output 0—1.000 1.000 = 100 %...

  • Page 9: Verification Of Installation Instructions

    ROOM CO2 SENSOR / SWITCH VERIFICATION OF INSTALLATION INSTRUCTIONS Check the status of the blue ON/OFF LED after you switch on the power supply. (See Fig. 10.) The ON/OFF LED should blink during the initialization period (30 s) for 2 seconds at equal intervals of 2 second. Then it should give out continuous blue light.

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