Alarms multi-function SHIELD-3

Stationary detectors SHIELD-3 is designed for automatic continuous monitoring of the content of combustible gases and vapors, and their aggregate, toxic gases and oxygen in the air of working zone, water level control, issue, light and sound alarm on exceeding the established levels of measured components and switching external electrical circuits, DC and AC.
Dignity

* Explosion proof, intrinsically safe circuit, high reliability, based on the use of modern element base.
* Channel-by-channel alarm with external Executive devices.
* Digital interface standard RS-485 for communication with peripheral devices.
* Continuous automatic control of all measuring channels, which does not require sample preparation.
* Software control of the detector, based on the system simple and intuitive access with custom on-screen menu, simultaneous display of rooms and condition of the measuring channel, the concentration values, the dimension of the measured value in "real time".
* Use of current 4-20mA signal for communication between the sensors and the BPS, the communication line length up to 1000m.
* The availability of redundant DC power.
* Large LCD display with backlight, carrying out continuous indication of the channel number, the current concentration values, names (formula) component to be determined.

Description

Alerters SHIELD-3 are stationary devices, consisting of transducers (sensors) and power supplies and alarm system (BPS).

Alerters SHIELD-3 can have from one to four channels of arbitrary configuration and a set of sensors in an arbitrary set depending on the order.

Blocks BPS have the following performance:

* - BPS-152 - single
* - BPS-153 - channel,
* - BPS-154 - channel,
* - BPS-155 - Quad channel.

Channels arbitrarily combined from among the following:

* measurement channel dovzryvoopasnyh methane concentrations and the combination of combustible gases and vapors (hereinafter - channel measuring CH4) sensor TH-152-1;
* measurement channel dovzryvoopasnyh concentrations of butane and the aggregate of combustible gases and vapors (hereinafter - channel measurement SN) - sensor TH-152-2;
* measurement channel dovzryvoopasnyh concentrations of hydrogen (hereinafter - the measurement channel H2) sensor TH-152-3;
* measurement channel dovzryvoopasnyh concentrations of vapors etilovogo alcohol (hereinafter - channel measurement SNN) - sensor TH-152-4;
* measurement channel dovzryvoopasnyh concentrations of hexane and the aggregate of combustible gases and vapors (hereinafter - channel measurement SN) - with attikonak-153;
* channel measurement volume fraction of oxygen (hereinafter - channel measuring O2) sensor ECT-1;
* channel measurement of the mass concentration of hydrogen sulfide (hereinafter - channel measuring H2S) - c sensor the ECT-2;
* channel measurement of the mass concentration of carbon monoxide (hereinafter - channel measurements) - ECT sensor-3;
* channel measurement volume fraction of carbon dioxide (hereinafter - channel measuring CO2) sensor ECT-4;
* channel measurement of the mass concentration of ammonia (hereinafter NH3) sensor ECT-5 and the ECT-6;
* control channel water level - sensor DVE-1.

The channel water level control provides information about the presence or absence of water at a level determined by the installation location of the sensor DVE-1 having two pairs of contacts located on a height at a distance of 250 mm from each other.

Sensors are intelligent measurement transducers with uniform current output 4-20 mA.

Sensors DTH-152-1, DD-152-2, DD-152-3, DD-152-4, DD-153, ECT-1, ECT-2, ECT-3, ECT-4, ECT-5, ECT-6, DA-1 can be installed in hazardous areas.

Alerters SHIELD-3 have two Parga alarms for each channel.

When the alarm threshold device alarms SHIELD-3 provide:

* the issuance light and sound alarm;
* switching external electrical circuits, DC voltage up to 30 V and AC voltage up to 242 V;
* generation of pulses for actuation of the electromagnetic pulse valve.

The list of substances controlled by the sensors of the detector SHIELD-3
DD-152-1:

Acetylene (etin) Acetone (2-propanone, dimethylketone) Benzene (pyrobenzol, Hairdryer, finishedit, cyclohexatriene) n-butane (methylethylketone) I-butane (2-methylpropan, trimethyltin) Acrylate (butyl ether of propanolol acid, gilbertology ether) Hydrogen (protium) n-Hexane n-Heptane n-Decane Dibutyl phthalate, acetic Acid, Xylene (xylene) mixture of isomers Methane (marsh gas, natural, mining, coal) methyl Methacrylate (methyl methacrylic acid, metacrilato methyl ether) n-Nonan carbon Monoxide (carbon monoxide, CO) I-Octane n-Pentane Propane Propylene (propene) Solvents and thinners (consisting of acetone, butanol, butyl acetate, Isobutanol, isopropanol, xylene, solvent, toluene, white spirit, cyclohexanone, ethanol, ethyl acetate, ethyl cellosolve) Turpentine (oil of turpentine) Solvent coal and oil-butyl Alcohol (1-butanol, papercarrier) isobutyl Alcohol (2-methyl-1-propanol, Isobutanol, isopropylamino) isopropyl Alcohol (2-propanol, isopropanol, dimethylcarbinol) methyl Alcohol (methanol, carbinol, wood alcohol) ethyl Alcohol (ethanol, alcohol, methylcarbamoyl, alcohol, ethyl alcohol) Toluene (phenylmethane, methylbenzol) petroleum coke white spirit (nefras C4-155/200) Cyclohexanone Ethylbenzene Ethylene (Aten) ethyl cellosolve technical diethyl Ether (ethyl ether, ethoxyethane, sulphuric ether, ethyl oxide) Ether exploratively (butyl acetate, butyl ester acetic acid) Ester exploitedby (ethyl acetate, ethyl ester acetic acid);
DD-152-2: