1. the main features
▲ with large digital numbers display, so that the working status of thermostats and display
of measured values more intuitive.
▲ adjusted using the I2C and storage technology, data protection save power.
▲ external single-phase fan with fan motivation (regular start and stop) function.
▲ with over temperature alarm, over temperature trip, fan start and stop functions.
▲ with 4-20mA analog current output and RS-485 communication.
2.technical indicators
1, measurement range: 0.0 ~ 200.0 ℃
2, measurement accuracy: ± 1% FS (0.5 thermostat, sensor 0.5)
3, resolution: 0.1 ℃
4, the digital compensation range: -19.9 ℃ ~ +19.9 ℃
5, using the conditions: ambient temperature -20 ~ +55 ℃
Relative humidity <85%
Supply voltage 220V (+10%, -15%)
Power frequency (50HZ ~ 60HZ) ± 2HZ
6, relay contact outputs: fan contact capacity: 7A/250VAC
Control output capacity: 10A/250VAC; 10A/30VDC
7, temperature controller power consumption: ≤ 8W
8, temperature controller weight: about 2.5kg
9, Overall Dimensions: 320 mm '260 mm' 78 mm (high 'width' depth)
10, sensor type: Pt100 (φ4 × 40mm)
11, analog current output: 4 ~ 20mA (linear corresponding to 0.0 ~ 200.0 ℃), the load
resistance ≤ 500Ω
12, Communication: RS-485 communication is connected with RS-485/232 Interface, up to
28 sets of temperature controller connected, communication distance of up to 1200
meters.
13, production standards: JB/T7631-2005 "transformer resistance thermometer"
14, through the certification standards: ISO9001 international quality management system
certification
15, by the test standards: IEC61000-4: 1995 International Standard GB/T17626-1998
"EMC test and measurement technology" standards
16, through the interference of pilot projects:
1) The common-mode AC 250V (50HZ) or series mode AC 200mV (50HZ) interference
voltage, the
display changes less than the basic error.
2) Electrical fast transients: thermostat power cord and input / output terminal can
withstand the frequency 5KHz, voltages were 1KV 2KV and electrical fast transient
test, display and control the absolute value of additional error limits to meet the
standards .
3) Static Interference: 8KV thermostat can withstand electrostatic discharge test, display
and control the absolute value of additional error limits to meet the standards.
4) Space radio frequency interference: thermostat can withstand the frequency of 80 ~
1000MHz, field strength 10V / m electromagnetic field radiation tests, the display and
control the absolute value of additional error limits to meet the standards.
3.Model Example
LD-B10-220D
LD-B10-220DC
LD-B10-220DL
LD-B10-220DLC
LD-B10-220GQ
LD-B10-220GCQ
LD-B10-220GLCQ
LD-B10-220E
LD-B10-220EI
LD-B10-220EG
LD-B10-220EC
LD-B10-220EICQ
LD-B10-220EGCQ
LD-B10-220EGLCQ
LD-B10-220EL
LD-B10-220EIL
LD-B10-220EILC
LD-B10-220EGI
LD-B10-220EGICQ
LD-B10-220EGILQ
LD-B10-220EGILCQ
The above models are some examples. If there are special requirements. Explain before ordering.
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