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Gas alarm controller ZX730

Author: source: Release date: 2016-12-15

Gas alarm controller ZX730

Product parameters

ZX-730-CH flammable gas detection and alarm controller is an intelligent alarm controller (hereinafter referred to as the controller), which is used in conjunction with the SC610 flammable gas detector (hereinafter referred to as the detector) with explosion-proof performance. The controller is in a safe place convenient for observation and maintenance. The detector signal is transmitted to the controller through the 485 bus. The controller can display the current channel number, channel concentration, and alarm or failure status. When the concentration value exceeds the alarm preset value, the controller can issue an audible and visual alarm, and send out a control signal to remind the operator to avoid various safety accidents.
ZX-730-CH type flammable gas alarm controller is widely used in chemical, petroleum, metallurgy, oil depots, liquefied gas stations, painting operations, gas distribution and other flammable gas generation, storage, use and other indoor and outdoor leak-prone places.
The design and manufacture of ZX-730-CH type flammable gas alarm controller complies with GB16808-2008 "Technical Requirements and Test Methods for Flammable Gas Alarm Controller" National Standards and corresponding regulations of the People's Republic of China:
  • 5.7-inch large-screen LCD display, thin-film panel, but not thin-film buttons, with high-quality OMRON buttons, long life but as beautiful and convenient as the thin-film buttons.
  • The operation of the controller is simple and easy to understand, and the Chinese and English (optional) interface is rich and friendly, which is convenient for users to the greatest extent.
  • The alarm parameters of each channel can be set separately.
  • Vacant channels can be shielded through settings for clarity and speed of polling.
  • The amount of information that can be provided is rich, and the working state of the detector is fully controlled.
  • The controller can record 1200 latest alarm information, which is convenient for accident tracking.
  • The controller case is short and light, and can be mounted on the wall for easy installation. .
  • Chinese and English (optional) LCD display gas concentration, intuitive and clear.
  • The controller uses digital function keys for easy operation.
  • There are online help operation instructions, and common problems are solved online.
  • The controller power can be switched between the main and backup power. The backup time is long to ensure that the controller can work normally in the event of an accident.
model ZX-730-CH
Use voltage range AC 220V ± 20%
Channel capacity 128
Channel capacity 128
Wire 485 bus system
temperature -10 ℃ ~ 55 ℃
Relative humidity 93% RH
Sound pressure range > 75dB / m
Backup power working hours > 2 hours
Alarm concentration Primary alarm default value is 25% LEL (adjustable); secondary alarm: 50% LEL
stability Long-term working alarm concentration error is not greater than ± 3% LEL
Alarm concentration error Not more than ± 3% LEL
Alarm method Sound and light alarm, LCD display LEL concentration
structure size 520mm × 360mm × 100mm
weight 8.8kg
Installation Notes

The controller is a non-explosion-proof structure. It should be fixedly installed in a safe place. The installation position should be selected for easy observation and maintenance. ZX-730-CH型控制器操作简便,设16个操作按钮、4个指示灯以及一个LCD液晶显示屏,最大限度的方便用户操作,界面简洁友好。 Function description ZX-730-CH controller is easy to operate. It has 16 operation buttons, 4 indicator lights and an LCD display, which is convenient for users to operate and the interface is simple and friendly.
Indicator light  Red is the alarm indicator light. When the gas concentration is detected to be higher than the set value, the indicator light flashes.  Yellow is the error indicator light. When the detector fails, the main and backup power is abnormal, or the communication fails, the indicator light. Blinking  Blue is the power backup indicator. When the backup power is insufficient, missed or faulty, the indicator is always off.  Green is the main power and running indicator. When the mains power is normal and the device is enabled, the indicator flashes. bright

Press the  "Cancel / Mute" key to stop an operation or return to the previous menu, and eliminate the alarm sound.
Ø0 ~ 9 number keys for parameter and channel setting.  "<" left shift key: move the cursor to the left and cancel the alarm.  ">" right shift key: move the cursor to the right.  "上" up key: to the right. Move the cursor to the left or turn the page  "∨" down key: Move the cursor to the right or turn the page;
 "Confirm / Menu" key to activate the menu or confirm an operation

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  • After the controller system concentration alarm, do not open the electrical switch, confirm the cause of the gas leakage, and take timely action. If the reason is unknown, please contact the relevant gas department for a thorough inspection.
  • If the controller fault light is on, you should turn off the power and check the sensor power and signal lines for short circuits and open circuits. If the wiring is normal, the sensor is invalid.
  • The explosion-proof type of the detector is flameproof. After connecting the cable, the box cover must be tightened, and the cover can only be opened after the site is powered off.
  • A certain concentration of smoke, volatile pesticides, and flammable organic solvents around the detector may also cause an alarm.
  • The sensor is damaged or invalid, and it should be recalibrated with a standard gas sample after replacement.
  • If the alarm controller fails, it shall be sent to the manufacturer for inspection and calibration, or the manufacturer shall be notified for dispatch.
  • The equipment should be handled gently during installation to avoid sharp vibrations and collisions.
  • The equipment is not installed temporarily, it should be stored in a dry and ventilated place, and the surrounding air does not contain corrosive gases.
  • This product has a service life of 5 years and lifetime maintenance.
Within a total length of 300 meters, the power line is 2.5 square electrolytic copper wires (the voltage drop at the end probe is not higher than 2V) , and the communication line is 1 square twisted electrolytic copper wire, which can ensure that 20 channels are normal. If it is more than 300 meters, it should be appropriately thickened. If it exceeds 20 channels, two power cables with the same specifications must be added to the end probe. The power supply can be star-linked, and the communication lines can only be connected linearly!
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