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.
▲ with "analog output state test," the human functions and black box function.
▲ linear high of platinum resistance (Pt100) and the non-linear thermistor (PTC) together
winding temperature measurement and control, greatly increased the reliability of the system.
▲ thermostat with 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 <90% (25 ℃)
Supply voltage 220V (+10%, -15%)
Power frequency (50HZ ~ 60HZ) ± 2HZ
6, relay contact outputs: fan contact capacity: 16A/250VAC
Control output capacity: 7A/250VAC; 10A/30VDC
7, temperature controller power consumption: ≤ 8W
8, temperature controller weight: about 2.5kg
9, Overall Dimensions: 260 +1 mm * 200 +1 mm * 70 +1 mm (width * high * thick)
10, Sensor Type: Pt100 (φ4 × 40mm) & PTC150 ℃, PTC140 ℃
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 range 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-S220D
LD-B10-S220DC
LD-B10-S220DL
LD-B10-S220DLC
LD-B10-S220G
LD-B10-S220E
LD-B10-S220EI
LD-B10-S220EG
LD-B10-S220EC
LD-B10-S220EIC
LD-B10-S220EL
LD-B10-S220EIL
LD-B10-S220EILC
LD-B10-S220EGL
LD-B10-S220EGC
The above models are some examples. If there are special requirements. Explain before ordering.
