Stationary gas analyzers of gases and steams of combustible liquids

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Application domain

Stationary gas analyzer of gases and steams of combustible liquids is intended for:
a) of automatic continuous control of pre-explosive concentrations of combustible gases and steams and their totalities in mid air apartments and on open-space;
b) deliveries of the light and voice signaling and commutation of external electric chains at exceeding of the set values of concentration. The value of thresholds of wearing-out is set at producing from a production and can be set on call of customer in a range from 5 to 50 % LCL;
c) transformations of the measured value of concentration to the output signal of direct-current (for Warners having a current output signal);
d) transformations of the measured value of concentration and state of threshold devices to the output digital signal of RS 232 or RS 485 (for Warners having an output digital signal);
e) deliveries of signal of blocking of external electric chains in case of setting off feed of Warner.

Advantages

microsystem of treatment of information and self-diagnose;
built-in light and voice signaling on every channel;
automatic tuning of "zero";
digital counting out device of concentration of gas;
management possibility by peripheral executive devices;
noise-proof communication line “Sensor – BPS”;
presence of current and digital exits;
presence of current and digital exits; simultaneous checking feature to the explosive concentrations and MPC of harmful gases (carbon monoxide, sulphuretted hydrogen of and other).

Technical descriptions

Amount of measuring channels - from 1 to 5;
Range of measuring of Warners on a test component - from 0 to 50 % LCL. A test component is methane, propane or hexane;
Limits of permissible basic absolute error of Warners on a test component ±5 % LCL;
Range of working temperatures - from - 40 to +50 °C;
Feed:
- Basic~220 V; ±220V; ±24V
- Reserve ±24V, ~220V
Thresholds of including of signaling, % LCL:
- preventive, "THRESHOLD 1" - 10 (20) *;
- pre-emergency, "THRESHOLD 2" - 20 (40) *;
- it is a signal "Refuse";
* – influenced on call of customer.
Output signals:
- is a management by executive devices is a "dry" contact of relay, 2 А, 220 V;
- it is a current exit – 0-5, or 4-20 мА;
- it is a digital exit – RS 232 or RS 485;
BPS – IP communication line - 3-wire, noise protected up to 1200 m.
The corps of BPS provides the degree of defence of IP 65 for GOST 14254.1.1.2.
Level of voice pressure of Warner no less than 65 dB in the distance a 1 m from Warner Middle work on the refuse of Warner no less than 35000 our. A criterion of refuse is appearance of signal "REFUSE".
Complete middle tenure of employment of Warner no less than 12;
Overall sizes of component parts of Warner :
- BPS: 284 х 232 х 143 mm;
- a sensor is: 100 х 115 х 110 mm;
Mass of component parts of Warner:
- BPS – 4,0 kg;
- a sensor is – 0,4 kg;