Explosionproof information display, LED (with static inscription and scrolling text) VELAN-T
Possibility of operation from storage batteryPossibility of light and light and sound signalHigh brightness of information inscription
Explosionproof LED displays are intended for use within explosion hazardous areas as informational signages, as well as means for visual and sound announcement.
Information providing at option of the Customer by means of the following: static inscription, static inscription and sound signal, dynamically changing inscriptions (“SCROLLING TEXT”); dynamically changing inscription and sound signal. Regarding display with “SCROLLING TEXT” inscription can be programmed for execution of a number of visual effects such as: blinking, returning after disappear (for works consisting of 5 letters maximum), inscription stop for the required amount of time. Inscription length is almost not limited (4000 symbols). The possibility to display inscription in any language.
Use of LED light sources allows reducing expenses for maintenance. Service life of LEDs is up to 100,000 h.
At similar light intensity LED light source consumes energy by ten times less than incandescent lamp.
Corrosion-resistant materials of the display body with special coating ensure long service life.
Two types of fastening with the possibility of transit cable laying.
The possibility of manufacturing with storage battery ensuring display operation up to 90 minutes at emergency deenergization.
The possibility to manufacture VELAN-T “Scrolling Text” display with indication up to 4 independent text messages.
Red, yellow or green inscription of “Scrolling Text” is visible under any conditions at any background light.
The display is a body of rectangular shape from aluminum alloy. From the front the body is closed with transparent cover from polycarbonate. Threaded entries on the rear wall of the body reliably fix position of the display while installation in vertical and horizontal planes. Grounding screw is installed on the body. The display includes storage battery unit that allows display operation in emergency mode upon mains supply absence. One or two cable glands are installed on the display. Availability of two cable glands allows transit power cable laying. Flexible or armored power cable with diameter up to 17 mm are laid through cable glands.
Inside the display body with static inscription storage battery (storage battery unit) with heating and sections filled with compound are located. Two sections with LED linear are filled with optical compound, power board, conversion block and sound piezo projector are filled with insulation compound. Display with static inscription according to the customer’s order can be delivered without sound piezo annunciator with conversion block and without storage battery unit.
Inside the display body with scrolling text the following is located: board of scrolling text, power board, conversion block and sound piezo annunciator, all blocks are filled with compound. Inside the body storage batteries (storage battery unit) with heating are installed. Display with scrolling text according to the customer’s order can be delivered without piezo annunciator with conversion block and without storage battery unit.
The display has two fastening types: Wl – wall; Cl – ceiling.
NOTE: information inscription can be made both by order and chosen from a number of standard ones, “EXIT”, “EXIT TO THE LEFT”, “EXIT TO THE RIGHT”, “NOT ENTER”, “FIRE”, “GAS”, “BEWARE OF ELECTRIC TRAIN”, “FOAM”, “AEROSOL”, etc.
For display with scrolling text inscription “SCROLLING TEXT” is indicated, and inscription text, its color and generation algorithm are given in the note to the order.
Х3 – color of inscription letters:
W – white
R – red
Y – yellow
B – blue
Z – green
Bl – black
For “SCROLLING TEXT” display inscription letter color: R – red, Y – yellow, Z – green
Х4 – background color:
W – white
R – red
Y – yellow
B – blue
Z – green
Bl – black
For “SCROLLING TEXT” display background color is not indicated
Х7 – index “А” meaning availability of storage battery in the display
In the absence of the storage battery index is not indicated
Х8 – power supply:
P – from the right (one cable gland is located from the right)
L – from the left (one cable gland is located from the left)
TP – transit from the right (two cable glands are located from the right)
TL – transit from the left (two cable glands are located from the left)
TPL – through transit (one cable gland is located from the right, the second cable gland is installed from the left)
X9 is a type of climatic version and arrangement category according to GOST 15150: UHL1 or OM1
Х10 – inscription “SOUND” upon availability of sound annunciator
In the absence of sound annunciator index shall not be indicated
Х11 is an explosion protection type marking: 1Ехs[iЬ]IIСТ6 X, 1ЕхsIIСТ6 X, 2ЕхеmIIСТ6 X, 2Ехеm[iЬ]IIСТ6 X
NOTE: Sign “Х” in explosion protection marking means “HAZARD OF POTENTIAL ELECTROSTATIC CHARGE!” and special operating conditions: display surface wiping is allowed only with wet cloth.
Example of record for designation of the display with static inscription, ceiling mounting, inscription “EXIT” with white letters on green background, nominal supply voltage 230 V AC, with the possibility of operation from the storage battery, transit left laying, 1ЕхsIIСT6 X explosion protection marking, UHL1 climatic version and arrangement category:
Version title: VELAN-T
with static inscription and sound annunciator
Explosion protection marking: 1Ехs[iЬ]IIСТ6 X
with storage battery – 3.9
without storage battery – 4.2
title: VELAN-T with static inscription and without sound annunciator
Explosion protection marking: 1ЕхsIIСТ6 X
with storage battery – 3.4
without storage battery – 3.7
Version title: VELAN-T “scrolling text” with sound annunciator
Explosion protection marking: 2Ехеm[iЬ]IIСТ6 X
with storage battery – 4.2
without storage battery –
Version title: VELAN-T “scrolling text” without sound annunciator
Explosion protection marking: 2ЕхеmIIСТ6
with storage battery – 3.7
storage battery – 4.1
Power consumption, W max:
display with static inscription:
without storage battery unit 6 W
with storage battery unit 19 W
display with scrolling text:
without storage battery unit 8 W;
storage battery unit 21 W
Nominal supply voltage, V:
AC 50/60 Hz from 24
DC from 12 to 230
Light source type: LEDs
Level of sound pressure at (1 m ± 0.05) m from sound annunciator, min, dB: 85
Frequency of sound signals within the limits of
band, Hz: 200–5000
Storage battery capacity, Ah: 1.9
Time of full storage battery charge, h: 30
Time of operation from storage battery, h: 1.5
Diameter of laid cable: 8-17 mm
cross-section of connected cores: 3х(1.5–2.5) mm2 (L+N+PE)
Class of protection from electric shock according to GOST
Display operation temperature:
UHL1 from -60 °С to +55 °C
OM1 from -40 °С to +45 °С
Protection class according to GOST 14254-96: IP66
Number of technical
conditions: PINYu.676147.099 TU