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PRODUCT >DA-770-H2S

PRODUCT

DA-770-H2S

DA-770-O2

DA-770-H2S

Introduction
1.1 Product Overview
The DA-770 stands as a cutting-edge gas analyzer, renowned for its exceptional precision and unparalleled reliability within the Korean market. Through the incorporation of advanced sensing technology, it distinguishes itself with an extended operational lifespan and heightened stability in comparison to its counterparts.
1.2 Product Description
The DA-770 distinguishes itself by being comparatively less susceptible to temperature, humidity, and air pressure variations, setting it apart from alternative products dependent on electrochemical sensors. Additionally, it remains unaffected by the sample gas flow rate, eliminates the need for electrolytes, and demands less frequent calibration and maintenance efforts.
Features
Manual Calibration Function
This device can be calibrated as per requirement and types of gases. This device has very easy calibration process that makes the maintenance and operation easy. Calibration ensures that the gas detector maintains accurate and reliable measurements over time. It is typically recommended to calibrate gas detectors regularly
Built-in HD (High Resolution) A/D Converter
The device is equipped with a high-resolution analog-to-digital (A/D) converter, ensuring precise and accurate conversion of analog signals into digital output. This technology enhances the accuracy of the output signal, resulting in reliable and trustworthy measurements.
User Programming
The device allows users to customize various settings, such as the detection range and other functions, according to their specific requirements and preferences. This feature provides flexibility and adaptability to meet diverse monitoring needs.
Analog 4-20mA Transmitter
With the analog 4-20mA output, the device enables stable and long-distance signal transmission of up to 2.5 kilometers. This ensures reliable communication and allows for extended signal transmission distances while maintaining signal integrity.
Alarm Output
The device also features an alarm output capability. It is equipped with a Single-Pole Single-Throw (SPST) relay contact that provides a two-step alarm functionality. This means it can trigger two separate alarm states, denoted as alarm 1 and alarm 2, enabling effective alerting and response to gas detection events.
Specification
Specification
Gas See the gas list below
Detection Method Suction Type
Detection Principal See the gas list below
Display 7” TFT LED (800 ×480)
Measuring Method Suction Type
Gas Volume 0.2 L/min~2.50 L/min
Alarm Sig nal Alarm 1 – AL1 LCD (YELLOW)/Alarm 2 – LCD (RED)/Fault Alarm – LCD FAULT(RED)
Response speed & Accuracy Within 15sec, ≤±0.5%/full scale
Measurement Range See the gas list be low
Input Power AC 110~ 220V (2.4 W)
Output Signal 4 ~ 20mA DC/ F.S
Setting Of Alarm Value AL2/AL1, 2 Stages Alarm-User Settings
Alarm Delay Time 0~99 Sec, User adjustable
Alarm Output 2 Step- Alarm Relay Contact
Alarm clearing Manually or automatically
Ambient Temperatures & Humidity Range -10℃ ~ 60℃, 5 ~ 95% RH (Non-condensing)
Installation Method Tabletop Type
Inhalation of gas Female 1/4”
Output (Optional) RS-485
USB Host USB 2.0 (Data Log Download)
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