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Digital display instrument
Isolation barrier

The voltage signal from the dangerous area is transmitted to the safe area through a single or independent two-way current / voltage signal through isolation and transmission, and serial communication networking can also be performed in the safe area through the configured communication interface. 产品,用户可通过专用编程器或计算机对本产品进行输入信号类型及输出量程的设置。 It is an intelligent safety barrier product. Users can set the input signal type and output range of the product through a special programmer or computer.
主要技术参数: The main technical parameters of the isolation barrier :
For general technical parameters, please refer to the “General Technical Specifications” in this manual.
Explosion-proof mark: Ex (ia) ⅡC
Input / output accuracy: ± 0.2% × FS
Signals allowed in hazardous areas:
DC voltage: 0-5V, 1-5V, 0-10V
Input impedance: 500KΩ
The signal type and range are determined at the time of ordering, and can also be programmed by yourself *, but other input voltage types cannot be selected when selecting 0-10V input.
Output signal to safe area:
DC: 0-10mA, 4-20mA, 0-5V, 1-5V, 0-10V
The signal type and range are determined at the time of ordering and can also be programmed by yourself *.
Communication (only in the safe area): RS232 or RS485 interface, please refer to the communication technology in this manual. When the communication function is selected, there is no second output function.
Power: DC 24V
Power consumption:
1.9W (single 20mA output, when 24V power supply)
2.4W (dual 20mA output, when 24V power supply)
Dimensions width x height x depth: (22.5 x 100 x 115) mm
National instrument explosion-proof safety supervision and inspection station certification parameters: (between terminals 9 and 10) Uo = 15V, Io = 1mA, Co = 0.58μF, Lo = 1000mH
Scope of application:
DC voltage signal from transmitter, primary meter, secondary meter, etc.
For installation, please refer to the “Shape and Installation” in this manual.
校准: Isolation barrier calibration:
This product adopts intelligent digital design, which can guarantee the accuracy within the range specified in this manual for a long time. For calibration, please choose a special programmer (economical) for operation. For specific operations and calibration methods, please refer to the Calibration and Programming Techniques in this manual.
Selection method:

model
Description
DX-GLA-
4
X
X
X
X
Detection-end safe voltage input, single or dual output
First output on the operator side
1
4-20mA
2
1-5V
3
0-10mA
4
0-5V
5
0-10V
Second output
No secondary output by default
1
4-20mA
2
1-5V
3
0-10mA
4
0-5V
5
0-10V
Operator terminal communication function (select this option for no second output function)
No communication function by default
T1
485 communication (single output only)
T2
232 communication (single output only)
Outer structure
Communication structure by default
B
Bus-powered structure