HT type alarm control host

ProductID: 8018 | Brand:DFHT Oriental Haitai |Price: Quote on request

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HT type alarm control host
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Specifications

ItemValue
Measured gases
Measuring range-1999~9999, the decimal point position can be set
Detection principleelectrochemical
Accuracyless than ±0.2% F.S
Resolution1/9999
Response time
Ingress protection
Explosion protection
Operating temperature
Power supply220V±10%, power consumption is less than 2* number of channels
Output signal

Product Description:

The HT type alarm control host is used with the alarm detector, which can receive the signal of the gas detector detector, and when the measured value reaches the set alarm value, the control host emits sound and light alarms, and outputs the control signal (switching contact output) at the same time, prompting the operator to take safety treatment measures in time, or automatically start the pre-connected control equipment to ensure safe production. AT series alarm host is suitable for all kinds of industrial alarm control, wall-mounted installation, simple installation, easy operation, stable working state, high measurement accuracy.

HT type alarm controls the size of the main unit

HT type alarm control host product information detailed explanation

Product highlights

● High precision, error less than 0.2% F.S, good anti-interference ability;
● Receiving standard signal: 4-20mA, 485 optional;
● One-channel and multi-channel types can be customized with up to 99 channels;
● Alarm points and all parameters can be set by button;
● Each channel has two alarm (switching quantity) outputs;
● It can set low limit, high limit, or upper limit or lower limit alarm, with delay alarm function;
● Can be connected to a two-wire or three-wire probe, and can provide 24V power supply to the probe;
● The data of the detection probe can be corrected, and the zero point can be adjusted remotely;
● Optional RS485/232 communication function, set all parameters through computer, and real-time monitoring and communication.

Technical parameters

power source 220V±10%, power consumption is less than 2* number of channels
Work environment
-10°C~65°C, humidity less than 90%R.H
Display range
-1999~9999, the decimal point position can be set
Input signal
Typical values are entered from 4mA~20mA
Alarm output
Output contact capacity: 250V AC, 3A
Basic error
less than ±0.2% F.S
Display Resolution
1/9999
Measure the control cycle
Fastest 100ms per channel
1. Key instructions:
All parameters can be set with five buttons; Including alarm point, alarm type, measuring range, etc., it is suitable for a variety of transmitters, and can be corrected at the same time as zero point correction and full degree correction, and the value of the transmitter can be corrected by using this function in special cases.
2. Schematic diagram of terminal wiring:
3. Internal installation test drawing
The dual-channel alarm control host on the left side of the figure;  
The right side of the picture is a gas detector with explosion-proof alarm light;
The lower side of the figure is a digital gas detector;
In the middle of the figure is a wireless data transfer card.
4. Small gas detection system
Precautions for use:
Please read the instructions carefully before use!
The instrument is non-explosion-proof, please do not install it in flammable and explosive and other dangerous places;
Replacing any component at will may damage the intrinsically safe structure of the instrument;
To ensure safety, wiring must be done after a power outage;
The instrument should be stored in a dry and dust-free environment if not used for a long time;
Do not clean the instrument with organic solvents, soap or silicone-containing solutions;
For example, to prevent electromagnetic interference, a grounding wire is required;
Do not open the chassis for repair while the power-on detection state;
Regularly test the instrument to check whether the sound, light and vibration alarms are normal;
Do not disassemble violently, open it forcefully, and avoid violent impact and squeezing by strong external forces;

Application range

The alarm control host is used in conjunction with the alarm detector, which can receive the signal of the gas detection detector, and when the measured value reaches the set alarm value, the control host emits sound and light alarms, and outputs the control signal (switching contact output) at the same time, prompting the operator to take safety treatment measures in time, or automatically start the pre-connected control equipment to ensure safe production. AT series alarm host is suitable for all kinds of industrial alarm control, wall-mounted installation, simple installation, easy operation, stable working state, high measurement accuracy.

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