GASTRON GTD-3000ExW, Instruction Manual

Page: 5 / 18

[Figure 2. GTD-3000ExW Components]
www.gastron.com
08
_
09
4. Name and Description of Each Part
4.1. Components 3.3. Electrical Specifications (Standard Type)
ITEMS SPECIFICATION
Input Voltage(Standard)
※ Customer supplied PSU must meet
requirements IEC1010-1 and CE
Marking requirements.
Absolute min:
Nominal:
Absolute max:
Ripple maximum allowed:
18V
24V
31V
1V pk-pk
Wattage
Max. wattage:
Max. current:
5.5W @+24 VDC
280mA @+24 VDC
Analog output Current
0-20mA(500 ohms max load)
All readings ± 0.2mA
Measured-value signal:
4mA(Zero) to 20mA(Full Scale)
Fault:
0-100% LEL:
100-109%LEL:
Over 110% LEL:
Maintenance:
0mA
4mA - 20mA
20mA - 21.4mA
22mA
3mA
Analog output current ripple & noise max ±20uA
Relay contact
Alarm1, Alarm2, Fault Relay
Rated 1.0 A @ 30VDC or 0.5 A @ 125 VAC
Wiring requirement
Power CVVS or CVVSB with shield
Analog CVVS or CVVSB with shield
RS485 STP(Shielded Twisted Pair)
Cable Connection Length
Analog 2500m
RS485 1000m
EMC Protection: Complies with EN50270
NO NAME DESCRIPTIONS
1 Housing Protects Sensor and PCB Board built in the Housing from external environmental change and shock.
2 Main PCB
It amplifies output signal from the sensor and converts and send it as DC 4~20 mA standard output.
Isolation RS-485 network and alarm relay contact signals are outputted. Also, it sends data for the display.
3 Display PCB
It displays data received from main PCB on LCD or OLED and displays the current event status with
power lamp, alarm lamp, trouble lamp.
4 Power/Signal Terminal
CN1 consists DC18-24 V power supply and DC 4~20 mA standard output connection terminal (VISO,
+24V, mA,-, ETH).
5 Alarm signal Terminal CN10 is alarm signal connection terminal, which outputs trouble, alarm1, alarm2 relay contacts.
3.4. Environmental Specifications
ITEMS SPECIFICATION
Operation Temperature
Transmitter -20 to 60 ℃
Sensor Refer to Sensor Specification
Storage Temperature
Transmitter -20 to 60 ℃
Sensor Refer to Sensor Specification
Operation Humidity
Transmitter 5 to 99% RH (Non-condensing)
Sensor Refer to Sensor Specification
Pressure Range 90 to 110KPa
Max. air velocity 6m/s
3. Specification GTD-3000ExW
Instruction Manual