[ Introduction ]
DA-800 detects various combustible, toxic and VOC gases leaked from industrial areas and display its density for gas producers, gas users, gas reservoirs, gas by-producers, and so on.
It is an indicator and transmitter type gas detector which converts detection signal into a standard current signal and transmit output to external devices.
Transmitter of DA-800 displays sensor’s current and voltage signal by gas density on LCD, still converts into 4-20mA standard current output signal and transmit to external side.
4-20mA standard current output signal can be transmitted to various controller such as Gas leakage alarm system (GMS1000, GMS2000) PLC, DDC, MMR to build a integrated or individual gas monitoring system.
[Features]
?Built-in micro processor realizes various artificial intelligent functions which result in more convenient, more accurate, and more efficient gas detection environment.
? Built-in HD(high dissolution) A/D converter for accurate output signal.
?LOW/HIGH 2 step relay contacts (AL1/AL2) enable to interlock with a various external devices like FAN.
? 4-20mA output enables stable and long distance (maximum 2.5km) signal transmission.
? User programmable Menu offers to set user’s own operating functions.
[Specification]
|
Segment | |
DA-800 | |
|
Gas sampling | |
Suction type | |
|
Density display | |
LCD Display - PPM, %LEL , % (set by user) | |
|
Input power | |
DC 20~30V | |
|
Structure | |
Explosion proof | |
|
Target gas | |
Toxic, Combustible , O2, VOC(PID) (select) | |
|
Detection principle | |
Catalytic, Electro-Chemical, VOC(PID) ,NDIR (select) | |
|
Suction flow rate | |
0 ~ 1000ml/ min | |
|
Suction distance | |
Within 100m | |
|
Measurement range | |
Please refer to the target gas list (page 16) | |
|
Accuracy | |
£ ±2%/Full Scale | |
|
Response time | |
Within 20 seconds, 90% / full scale | |
|
Sensor calibration | |
AUTO-CALIBRATION with Magnetic Switch | |
|
User programming | |
Calibration density & Measurement range | |
|
Wiring | |
CVVS & CVVSB 1.25sq*3wire | |
|
Output signal | |
4-20? DC/F.S // RS-485(MODBUS-RTU) | |
|
Alarm output | |
2 Step (HIGH/LOW) Alarm RELAY CONTACT | |
|
Operation Temperature | |
-10? ~ 50? | |
|
Operation humidity | |
5 ~ 95%RH (Non-Condensing) | |
|
Wire conduit | |
1/2” or 3/4” PF,NPT | |
|
Housing material | |
Cast Aluminum Alloy | |
|
Mounting | |
Wall or Pipe Station | |
[Terminal]