Gas Sensor with Modbus output MBRTU-G4-NH3

SKU: MBRTU-G4-NH3

Doc No: MBRTU-G4-NH3-DS-EN-10

Introduction

MBRTU-G4-NH3 is an electrochemical-type gas sensor with a high sensitivity to low concentrations of NH3 gas, high selectivity, and a stable baseline. It is powered by a wide range of power supplies 7..48VDC and gives output via RS485 ModbusRTU.

High accuracy and stability;

Wide range of Power Supply;

Filter & Protector;

Standard ModbusRTU output;

Plug & Play.

Typical Applications

Ambient Gas Monitoring in Facilities, Farm, Building, Factory, City...

Indoor Air Quality monitoring;

HVAC Control;

Greenhouse;

Smart Agriculture.

Specification

SENSOR SPECIFICATION

Sensor type

Daviteq Seri-4 electrochemical gas sensor

Nominal range

0-100 ppm

Maximum overload

200 ppm

Resolution

0.1 ppm

T90 response time

< 35 s

Typical Baseline Range (pure air, 20°C)

-3.0 ppm .. + 3.0 ppm

Repeatability

< 3% of reading

Linearity

5% of full scale

Temperature compensation

Yes

Relative humidity range

15 % to 90 % RH non-condensing

Temperature range

-10 °C to 50 °C

Pressure range

Atmospheric ± 10%

Humidity effect (Abrupt changes in rel. humidity causes a short-term transient signal)

< 4 ppm

Expected Operation Life

2 years in the air

Expected Long-Term Output Drift in air

< 5 % of reading loss per 6 months

Filter & Protector

Nylon filter

Sensor housing / Rating

Plastic / IP67

OTHER SPECIFICATION

Communication Port

RS485, ModbusRTU protocol, max 19200 baud

Power supply

9..36VDC, avg. < 200mA

Connector

M12-male 4-pin Code A

Working temperature

0 .. 50 oC

Working humidity

15 .. 90% RH

Housing

Thermal Plastic

Housing Rating

IP67

Dimension

H150xD30

Net weight

<200 grams

CROSS SENSITIVITY DATA

The table below does not claim to be complete. Interfering gases should not be used for calibration.

Interfering Gas

Concentration (ppm)

Reading (ppm)

Cl2

20

-55

CO

300

0

CO2

20000

0

H2

200

0

H2S

20

7

NO

20

-1

NO2

20

-20

SiH4

10

0

SO2

20

-7

ORDERING CODE

Item code

Descriptions

MBRTU-G4-NH3-100-01

MODBUSRTU OUTPUT AMMONIA GAS NH3, 0-100PPM, RS485/MODBUSRTU, 7..48VDC SUPPLY, M12-M CONNECTOR

MBRTU-G4-H2S-50-01

MODBUSRTU OUTPUT H2S GAS, 0-50PPM, RS485/MODBUSRTU, 7..48VDC SUPPLY, M12-M CONNECTOR

Please select below M12 cable with different lengths

2M-FM12CAB4X0.25

M12 4PIN FEMALE ASSEMBLY CONNECTOR WITH SOLDERING TERMINALS AND CODING A AND CONTROL CABLE CU/PVC/OS/PVC 4X0.25MM2, L=2M, ROHS, SHIELD 80%

5M-FM12CAB4X0.25

M12 4PIN FEMALE ASSEMBLY CONNECTOR WITH SOLDERING TERMINALS AND CODING A AND CONTROL CABLE CU/PVC/OS/PVC 4X0.25MM2, L=5M, ROHS, SHIELD 80%

10M-FM12CAB4X0.25

M12 4PIN FEMALE ASSEMBLY CONNECTOR WITH SOLDERING TERMINALS AND CODING A AND CONTROL CABLE CU/PVC/OS/PVC 4X0.25MM2, L=10M, ROHS, SHIELD 80%

Link for full datasheet:

Link for manual:

Daviteq Technologies Inc

  www.daviteq.com   |     info@daviteq.com