Industrial manufacturing

Combustible Gas Alarm Controller(JH-Z128)

The JH-Z128 combustible gas alarm controller is suitable for environments involving the production, transportation, storage, and filling of combustible gases. It monitors the concentration of combustible gases in the air, detected by point-type combustible gas detectors (RS485 digital signals). When the set alarm threshold is reached, corresponding alarm and control signals are output to alert on-site personnel to t…

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About this product

Product information from the supplier.

Technical Parameter


Specification

Parameter

Working Voltage

220V AC±15%

Backup Power Supply

External 12V DC / 24Ah × 2

Display Mode

Color LCD Display

Total Loops

4 Loops

Max. Channels per Loop

32 Channels

Communication Protocol

RS485 (Modbus RTU)

Power Consumption

<250W

Concentration Units

%LEL, ppm, %VOL, mg/m³

Alarm Types

High/Low Limit Alarm, Fault Alarm

Alarm Relay Output

6 groups, 1A 220VAC rated

Operating Temperature

-10℃ ~ 55℃

Operating Humidity

≤95%RH (Non-condensing)

Installation Method

Cabinet / Wall-mounted

Controller Dimensions (mm)

484 × 270 × 179

Backup Box Dimensions (mm)

403 × 253 × 187


Features


Equipped with a high-speed core processor for efficient and stable operation.

Built-in RS485 isolation chip to effectively reduce system failures.

Equipped with 6 sets of relay outputs.

Supports RS485/Modbus RTU signal output for connection to host systems such as computers.

Features alarm status hold function.

Supports alarm record storage and query with a capacity of 1000 records.

Modular design with 4-loop cyclic display; each loop supports simultaneous display of values and status for 32 channels.