1, the main features
▲ linear high platinum resistor winding temperature monitoring, and high reliability.
▲ liquid crystal display and LED indicator lights, work status, and measurements show more intuitive.
▲ the calendar clock, no need to re-set the clock after power outages.
▲ a standard RS-485 or PROFIBUS-DP communication interface.
▲ using new anti-jamming design to meet the national standard indicators of the electromagnetic compatibility requirements.
Third, the technical parameters
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, temperature sensor type: Pt100
6, relay contact output: Fan control contact capacity: 7A/250VAC
Alarm control output capacity: 7A/250VAC; 5A/220VDC
7, analog signal output: 4 ~ 20mA four
8, means of communication: RS-485 or PROFIBUS-DP bus
9, protection rating: not less than IP54
10, using the conditions: ambient temperature -20 ~ +55 ℃
Relative humidity <90% (25 ℃)
Supply voltage 220V (+10%, -15%)
Power frequency (50HZ ~ 60HZ) ± 2HZ
11 Installation: Wall
12, production standards: JB/T7631-2005 "transformer resistance thermometer" and IEC61000-4: 1995 International Standard GB/T17626-1998 "EMC test and measurement technology" standards
13, the product quality system: ISO9001 international quality management system certification
14, 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.
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