DRT-301M User Manual
Shanghai Fengyilong Electronic Co,. Ltd.
www.china-meters.com
Email:[email protected]
021-60975591/ 60975592
baud rate 1200, 2400,4800,9600 (default)
19200(option)
Address range 0-255 user settable
Bus Loading 64 meters per bus
Rage 1000m
1.6 Far Infrared communication specifications:
infrared wavelengths 900- 1000nm
baud rate 1200bps(default),9600bps(option)
communication distance 5m
communication angle
-15°~+15°
protocol MODBUS RTU with 16 bit CRC & DL/T645
1.7 Tariff specifications:
Tariff number 4
Time segments 10
Clock accuracy ≤0.5S (every 24 hours)
Battery Voltage 3.6V DC, ≥1.2Ah
1.8 Basic errors:
With balanced loads
0.05Ib
Cosφ = 1
±1.5%
0.1Ib
Cosφ = 0.5L
±1.5%
Cosφ = 0.8C
±1.5%
0.1Ib - Imax Cosφ = 1
±1.0%
0.2Ib - Imax Cosφ = 0.5L
±1.0%
Cosφ = 0.8C
±1.0%
With single phase load
0.1Ib - Imax Cosφ = 1
±2.0%
0.2Ib - Imax Cosφ = 0.5L
±2.0%
1.8 Description
A
Front panel
B
Cover
C Base
D Security hasp
Material
Front panel
PC inflammable retarding
Cover
ABS inflammable retarding
Base
ABS inflammable retarding
