Description
All control units of the ET-Series could be used in combination with all ExTox Transmitters ExSens(-I) and Sens(-I).
Due to their modular construction accessories and spareDue to their modular construction accessories and spareparts are mutually extensively interchangeable, which facilitates and enables installation, adjustmentand maintenance at low cost.
The transmitters issue the measuring signal via a 4-20 mA-output with linear curve. The typesThe transmitters issue the measuring signal via a 4-20 mA-output with linear curve. The typesExSens-I and Sens-I also dispose of a digital RS-485 communication interface. This offers thepossibility of an automatic single man calibration of these transmitters as well as furthercomfortable functions for configuration and monitoring of the sensor functionality.▪
▪ Transmitter for flammable gases, toxic gases or oxygen
▪ 4…20 mA-output with linear curve
▪ For industrial and commercial applications
▪ Application in explosion hazardous areas of Zones 1 and 2
Features:
Measured Gas: Gas and Transmitter List
Measuring Range: Gas and Transmitter List. On demand the standard measuring range can factory sided be diversified in range 50 to 200 %. Bigger deviations if applicable on demand.
Measuring Principles:
▪ ExSens …-WT: Catalytic Combustion
▪ ExSens …-IR: Absorption
▪ ExSens …-EC: Electrochemical Cell
▪ ExSens …-KE: Electrochemical Oxygen Cell
▪ ExSens …-HL: Metal oxide-semiconductor
Operation Mode: Diffusion (Operation with aspirated flow possible, e. g. in ExTox IMC)
Response Time: Gas and Transmitter List
Range of application:
Temperature: Gas and Transmitter List
Humidity: 10 r. H to 90 r. H (please avoid condensation)
Pressure: 800 hPa bis 1100 hPa
Deviations:
▪ Changes on climatic conditions can be done with the usual rate for atmospheric deviations. Very quick changes, such as for example shock pressures, can cause bigger measuring deviations for short time.
▪ Extension of climatic ranges is in particular cases possible acc. to prior agreement with ExTox.
Conformity:
EC-Directives:
▪ 2014/30/EU (EMV)
▪ 2014/34/EU (ATEX) CE 0158 ATEX II 2G (suitable for Zone 1 and 2)
Type Test:
▪ BVS 04 ATEX E 066 X (EN 60079-0 and EN 60079-1) with 1st and 2nd amendment
▪ BAM 07 ATEX 0301 X (EN 60079-29-1)
Protection:
▪ ExSens …-WT/-IR/-HL: Ex db IIC T4 (-20 °C ≤ Tamb ≤ 60 °C) Gb
▪ ExSens …-EC: Ex db IIC T5 (-20 °C ≤ Tamb ≤ 49 °C) Gb
▪ ExSens …-EC: Ex db IIC T4 (-20 °C ≤ Tamb ≤ 70 °C) Gb
▪ ExSens …-KE: Ex db IIC T6 (-20 °C ≤ Tamb ≤ 43 °C) Gb
▪ ExSens …-KE: Ex db IIC T5 (-20 °C ≤ Tamb ≤ 58 °C) Gb
▪ ExSens …-KE: Ex db IIC T4 (-20 °C ≤ Tamb ≤ 70 °C) Gb
Measuring Function:
▪ Designed acc. to
→ EN 60079-29-1 (flammable gases)
→ EN 45544-1 to DIN EN 45544-3 (toxic gases)
→ EN 50104 (oxygen)
▪ ExSens …-HL: Restrictions due to measuring principle exist as far as requirements of standards regarding linearity are concerned and on climatic influences. This has to be considered for designing alarm concept.
Mechanical Features:
Dimensions (Length x Width x Height):
▪ ExSens …-WT/-IR/-HL: 170 mm x 138 (145)mm x 100 mm
▪ ExSens …-EC: 180 mm x 138 (145)mm x 100 mm
▪ ExSens …-KE: 198 mm x 138 (145)mm x 100 mm
Weight: approx. 2,5 kg
Material:
▪ Housing: cast aluminium, lacquered
▪ Sensor block: stainless steel
Enclosure Rating: IP 65 (except gas inlet)
Installation:
▪ Wall mounting
▪ Installation on ceiling by means of angle (as option)
▪ Installation in pipes by means of adapter (as option)
Storage Temperature: -25 °C bis +60 °C
Electrical Features:
Power Supply: 24 ± 6 V DC
Power Consumption:
▪ ExSens …-WT/-IR/-HL: 80 mA / 2 W
▪ ExSens …-EC/-KE: 40 mA / 1 W
Interface:
▪ 4…20 mA, active (other current and voltage ranges on demand)
▪ linear calibration curve
▪ Option: RS 485 for remote adjustment (Type ExSens-I)
Max. Load:: 500 Ω
Cable Gland:
▪ M 16 x 1.5 (diameter of cable 4 to 8.5 mm)
▪ ExSens-I: M 16 x 1.5, diameter of cable 6 to 12 mm)
