Threshold gas detectors DEX/F

DEX/F detectors are designed to detect the presence of dangerous concentrations of gases or vapours of explosive or toxic liquids or oxygen. They signal exceeding two alarm thresholds (A1, A2) set in an interchangeable sensor module (thresholds set at the production stage).

DEX/F detectors are designed to work with:

The detectors meet the essential requirements of Directive 2014/34/EU (ATEX) of the European Parliament and of the Council of 26 February 2014, on the harmonization of the laws of the Member States relating to protective systems intended for use in potentially explosive atmospheres, implemented by the Regulation of the Minister of Development on requirements for equipment and protective systems intended for use in potentially explosive atmospheres of 6 June 2016. (Journal of Laws 2016 item 817).

The detectors are devices with explosion-proof construction of flameproof cover type and can be used in zones 1 or 2 threatened with explosion of flammable gases or vapors classified as explosiveness group IIA, IIB or IIC, temperature classes T1, T2, T3, T4, T5 or T6.

Features

  • detachable and interchangeable sensor unit guarantees easy maintenance and low cost operation;
  • easy change of detection gas or calibration of detector;
  • built in temperature compensation;
  • semiconductor or catalytic or infra-red sensor for combustible gases or electrochemical sensor for toxic gases or oxygen;
  • high temperature (up to +80°C) version available;
  • all detectors are calibrated in our own GAZEX Calibration Laboratory operating in accordance with PN-EN ISO/IEC 17025 (PCA accreditation No AP150).

Typical system configuration

Offered models

Model Gas sensor module Sensor Substance/property Standard alarm thresholds or measuring range Supply voltage Net price C.g.
Ex MS-12/N Semiconductor Methane (CH4)
10/30
%LEL
System powered PLN899.00 S
Ex MS-14/N Semiconductor Methane (CH4)
10/30
%LEL
System powered PLN899.00 S
Ex MS-14/N Semiconductor Methane (CH4)
10/30
%LEL
System powered PLN1,499.00 N
Ex MS-15/N Semiconductor Liquefied petroleum gas (LPG)
10/30
%LEL
System powered PLN899.00 S
Ex MS-22/NL Semiconductor Carbon monoxide (CO)
20/100
ppm
System powered PLN939.00 N
Ex MS-31/N-X Semiconductor Organic compounds
20/40
%LEL
System powered PLN1,089.00 N
Ex MS-41/N-X Semiconductor Ammonia (NH3)
500/1500
ppm
System powered PLN939.00 N
Ex MS-61/N-X Semiconductor Hydrofluorocarbon (R410A)
1000/2000
ppm
System powered PLN939.00 N
Ex MS-71/N Semiconductor Acetylene (C2H2)
or Hydrogen (H2)
10/30
%LEL
System powered PLN939.00 N
Ex MS-73/N-X Semiconductor Hydrogen (H2)
10/30
%LEL
System powered PLN939.00 S
New Ex MS-1KL/N-X Catalytic Methane (CH4)
10/30
%LEL
System powered PLN1,199.00 S
New Ex MS-1KL5/N-X Catalytic Liquefied petroleum gas (LPG)
10/30
%LEL
System powered PLN1,199.00 S
Ex MS-3K/N Catalytic Organic compounds
20/40
%LEL
System powered PLN1,349.00 N
Ex MS-4K/N Catalytic Ammonia (NH3)
5/15
%LEL
System powered PLN1,199.00 N
New Ex MS-7KL/N-X Catalytic Hydrogen (H2)
10/30
%LEL
System powered PLN1,199.00 N
Ex MS-2E/N Electrochemical Carbon monoxide (CO)
20/100
ppm
System powered PLN1,299.00 N
Ex MS-4E/N-X Electrochemical Ammonia (NH3)
500/800
ppm
System powered PLN1,299.00 N
Ex MS-7E/N Electrochemical Hydrogen (H2)
500/800
ppm
System powered PLN1,299.00 N
New Ex MS-9E5/N Electrochemical Oxygen (O2)
19/18
%v/v
System powered PLN1,299.00 N
Ex MS-1R2/N Infra-red Methane (CH4)
10/30
%LEL
System powered PLN2,099.00 N
Ex MS-1R5/N Infra-red Liquefied petroleum gas (LPG)
10/30
%LEL
System powered PLN2,099.00 N
Ex MS-3R/N-X Infra-red Organic compounds
20/40
%LEL
System powered PLN2,249.00 N
Ex MS-8R/N Infra-red Carbon dioxide (CO2)
0,5/1,5
%v/v
System powered PLN2,099.00 N
Model Gas sensor module Sensor Substance/property Standard alarm thresholds or measuring range Supply voltage Contact control outputs Voltage control outputs 12VDC Two-state outputs (threshold) Control output "Fault" Output controlling the shut-off valve Output in 4-20mA standard Output in 0-10V standard Output in 2-10V standard Output in RS-485 standard Visual signalling, built-in Acoustic signaling, built-in Internal battery Dimensions Net price C.g.
Ex MS-12/N Semiconductor Methane (CH4)
10/30
%LEL
System powered 2 105 x 103 x 54 mm PLN899.00 S
Ex MS-14/N Semiconductor Methane (CH4)
10/30
%LEL
System powered 2 105 x 103 x 54 mm PLN899.00 S
Ex MS-14/N Semiconductor Methane (CH4)
10/30
%LEL
System powered 2 105 x 103 x 54 mm PLN1,499.00 N
Ex MS-15/N Semiconductor Liquefied petroleum gas (LPG)
10/30
%LEL
System powered 2 105 x 103 x 54 mm PLN899.00 S
Ex MS-22/NL Semiconductor Carbon monoxide (CO)
20/100
ppm
System powered 2 105 x 103 x 54 mm PLN939.00 N
Ex MS-31/N-X Semiconductor Organic compounds
20/40
%LEL
System powered 2 105 x 103 x 54 mm PLN1,089.00 N
Ex MS-41/N-X Semiconductor Ammonia (NH3)
500/1500
ppm
System powered 2 105 x 103 x 54 mm PLN939.00 N
Ex MS-61/N-X Semiconductor Hydrofluorocarbon (R410A)
1000/2000
ppm
System powered 2 105 x 103 x 54 mm PLN939.00 N
Ex MS-71/N Semiconductor Acetylene (C2H2)
or Hydrogen (H2)
10/30
%LEL
System powered 2 105 x 103 x 54 mm PLN939.00 N
Ex MS-73/N-X Semiconductor Hydrogen (H2)
10/30
%LEL
System powered 2 105 x 103 x 54 mm PLN939.00 S
New Ex MS-1KL/N-X Catalytic Methane (CH4)
10/30
%LEL
System powered 2 PLN1,199.00 S
New Ex MS-1KL5/N-X Catalytic Liquefied petroleum gas (LPG)
10/30
%LEL
System powered 2 PLN1,199.00 S
Ex MS-3K/N Catalytic Organic compounds
20/40
%LEL
System powered 2 105 x 103 x 54 mm PLN1,349.00 N
Ex MS-4K/N Catalytic Ammonia (NH3)
5/15
%LEL
System powered 2 105 x 103 x 54 mm PLN1,199.00 N
New Ex MS-7KL/N-X Catalytic Hydrogen (H2)
10/30
%LEL
System powered 2 PLN1,199.00 N
Ex MS-2E/N Electrochemical Carbon monoxide (CO)
20/100
ppm
System powered 2 105 x 103 x 54 mm PLN1,299.00 N
Ex MS-4E/N-X Electrochemical Ammonia (NH3)
500/800
ppm
System powered 2 105 x 103 x 54 mm PLN1,299.00 N
Ex MS-7E/N Electrochemical Hydrogen (H2)
500/800
ppm
System powered 2 105 x 103 x 54 mm PLN1,299.00 N
New Ex MS-9E5/N Electrochemical Oxygen (O2)
19/18
%v/v
System powered 2 PLN1,299.00 N
Ex MS-1R2/N Infra-red Methane (CH4)
10/30
%LEL
System powered 2 105 x 103 x 54 mm PLN2,099.00 N
Ex MS-1R5/N Infra-red Liquefied petroleum gas (LPG)
10/30
%LEL
System powered 2 105 x 103 x 54 mm PLN2,099.00 N
Ex MS-3R/N-X Infra-red Organic compounds
20/40
%LEL
System powered 2 105 x 103 x 54 mm PLN2,249.00 N
Ex MS-8R/N Infra-red Carbon dioxide (CO2)
0,5/1,5
%v/v
System powered 2 105 x 103 x 54 mm PLN2,099.00 N

Suggested products

AP-1
Splash-proof enclosures AP-1
Splash-proof enclosures to protect detectors from adverse weather conditions and mechanical damage
AR-1
Tubular shields AR-1
Profiled tube guards to protect the detector from direct mechanical damage
DEX-G
DEX-G Ex
ATEX compliant DEX/F, DEX/A or DEX/P detector adaptation for operation in dust explosive areas
GTS
Gas test sets GTS
Test sets for verifying the correct operation of detectors by injecting a gaseous test mixture into the measuring chamber of the detector