5
IV. Detector Structure
1
．
Grounding wire perforation size: 60mm
×
30mm.
2
．
LCD displayer.
3
．
Up and down cover connecting screws (6 pieces).
4
．
Install screw holes.
5
．
Button and the indicator light.
6
．
Power supply,
RS485
communication interface.
Power Supply Indicator Light
Working indication when power supply switches on.
Alarm Indicator Light
Alarm light switches on when measured value is beyond pre-set
critical value.
SET Key
Enter setup
Up and Down Arrow Key
Press SET key to enter the alarm setting, press up and down arrow
key to set value.
Enter Key
After setting up alarm critical value, press ENTER key to ensure
saving.
Note:
ETCR2800B
mode without LCD display and press key function.
V. Network Structure
1. Independent Installation and Use.
ETCR2800C
can be installed and used independently, also can develop system software on their own
according to offered RS485 communication protocol, organizes a network monitor. LCD shows measured value
directly, also sets up Detector
’
s alarm critical value, and possess audible and visual alarming function. When
independent installation it can use 2 batteries instead of power supply, or use solar cell panel to charge batteries,
batteries need placing in the protection box.
2. Reference of Network Organization.
Users can develop system software on their own according to offered communication protocol, organize
wired network, as the picture below.
Cable Network System Wireless Network System