Buy Signaling device of combustible gases and vapors of thermochemical SHCHIT-2
Signaling device of combustible gases and vapors of thermochemical SHCHIT-2

Signaling device of combustible gases and vapors of thermochemical SHCHIT-2

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12500 UAH
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Ukraine, Kharkov
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+380 
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5
5 years on Allbiz
Technical characteristics
  • Country of manufactureUkraine
  • TypeCommon
  • Operating principleThermochemical
Description
The signaling device of SHCHIT-2 of new generation this device executed on new element base with use of SHCHIT-2 of constructive and circuit decisions is issued for replacement and replenishment of the existing park of signaling devices SHCHIT-2. Possesses the highest class of explosion proofness for signaling devices of combustible gases of this kind that allows to apply it with big reliability in explosive zones
The stationary industrial signaling device of SHCHIT-2 provides control more than 150 substances in the wide range of temperatures, has two thresholds of operation, the light alarm system, "dry contacts" of the relay for switching of external electric chains, the digital RS-485 interface
Appointment
Control of dovzryvoopasny concentration of combustible gases, vapors and their set in the air environment of production rooms and external installations with zones of all classes of potential of explosion
Scope
For control of a gas contamination of production rooms of all industries where there can be a leak and distribution of the combustible gases, vapors and their mixes specified in the list of SHCHIT-2 of substances controlled by a signaling device.
Modifications of SHCHIT-2 of signaling devices
1. SHCHIT-2-20 with the DTH-127-5 sensor (a single-channel, convection way of supply of controlled mix)
2. SHCHIT-2-21 with the DTH-128-1 sensor (a single-channel, compulsory way of supply of controlled mix)
3. SHCHIT-2-22 with the DTH-127-5 sensor (a five-channel, convection way of supply of controlled mix)
4. SHCHIT-2-23 with the DTH-128-1 sensor (a five-channel, compulsory way of supply of controlled mix)
5. Technical characteristics
Name of an indicator
Principle of action
thermochemical
Range of measurements, NKPR % *
from 0 to 50
Limit of the allowed main absolute error of a signaling device, NKPR %
±5
Range of alarm concentration in operating conditions, NKPR %
from 5 to 50
First threshold of operation:
DTH-128-1 sensor
12,2%
DTH-127-5 sensor
15,1%
Reaction time, with, no more
10
Time of warming up, min., no more
5
Period of operation in the automatic mode without servicing, days
45
The power switched on chains of the external alarm system:
at a voltage of alternating current of 220 V, VA, no more
88
at a voltage of direct current of 30 V, VA, no more
100
Number of conductors of the communication line
4
Power consumption on one channel, VA, no more
10
Power supply of the DTH-128-1 sensor compressed air pressure, in MPa
from 0,25 to 0,6
Volume consumption of compressed air for a tachik of DTH-128-1, l/h, no more
200
Overall dimensions, mm, no more
DTH-127-5 sensor
85 x 90 x 85
DTH-128-1 sensor
140 x 185 x 160
BPS block (single-channel)
322 x 80 x 180
BPS block (five-channel)
395 x 520 x 198
Weight, kg, no more
DTH-127-5 sensor
0,3
DTH-128-1 sensor
2,3
BPS block (single-channel)
3,0
BPS block (five-channel)
16,0
Average time between failures, h, not less
66700
Full average service life, years, not less
10
* Nizhny Novgorod a concentration limit of distribution of a flame (on methane of 100% of NKPR corresponds to a volume fraction of 5%)
Controlled component ― single combustible gases, vapors of combustible liquids and their set
Testing component ― methane
Power supply of signaling devices is carried out from the alternating current main of (220+22/-33) B, the frequency (50±1) of Hz (osnovn oye) and from an external source of a direct current by tension 12,0±1,2В (reserve)
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Signaling device of combustible gases and vapors of thermochemical SHCHIT-2
Signaling device of combustible gases and vapors of thermochemical SHCHIT-2
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