1、Function Introduction
As an intelligent instrument designed for modern new energy technology field, LD-B32 new energy temperature and humidity controller can be used to measure oil temperature of the transformer and the temperature and humidity inside the box transformer, indicating visualized and clear temperature and humidity values with Nixie tube. Excessive high ambient temperature will cause the automatic start of the drought fan; Overdue oil temperature calls for the functions of warning output and tripping output; Overdue ambient humidity inside the box transformer will cause automatic start of ambient fan or start of heaters for dehumidification to keep favorable operating environment.
Oil surface temperature sensor adopts armor PT100 oil temperature liquid sensor with three-wire system mode of a connection whose lead wire amounts to 20 meters and temperature shows no distortion.
The imported, highly reliable and integrate ambient temperature and humidity sensor enjoys the features of high accuracy, excellent stability and remarkable anti-interference. This controller supports the inquiry of temperature tripping records and RS485 communication or analog quantity output can be selected (4 to 20mA current output or 1 to 5V voltage output).
2、Application area
● Photovoltaic power system ● High-tension switch board
● Wind power electrical system ● Box-type substation
3、Technical parameters
Working voltage AC220V (-15%~+15%)
Contact output capacity Other contacts 2A/250VAC Fan contact 5A/250VAC
Storage environment -50℃~80℃，<95%RH
Measurement scope of environmental temperature: -40℃~160℃
Measurement scope of oil temperature -50.0℃~160.0℃
Measurement scope of humidity: 1.0%~99.9%
Applicable environment -45℃~85℃, <95%RH (no
condensation)
Operating altitude ﹤4km
Resolution/precision Ambient humidity 0.1%/±5.0%
Oil surface
temperature 0.1℃/±1.0℃
Ambient humidity 1℃/±1℃
Communication Port form RS485
Communication protocol Modbus RTU
Communication rate 1200bps~19200bps
Appearance and weight Opening size 76+1mm× 152+1mm
Overall dimension 80mm (height)× 160mm (width)× 100mm (depth)
Weight Approximately 450g
4.Model Example
LD-B32-00D-0110
LD-B32-01D-0111
LD-B32-12D-0112
LD-B32-00D-0120
LD-B32-01D-0121
LD-B32-12D-0122
LD-B32-00D-0220
LD-B32-01D-0211
LD-B32-12D-0212
LD-B32-00D-1110
LD-B32-01D-0221
LD-B32-12D-0222
The above models are some examples. If there are special requirements. Explain before ordering.
