Brainchild Temperature Transmitter and Controller

6 minutes, 39 seconds Read

Data Communication

Model C22 C62 C82 C83 C72 C42 R22
Interface RS-485
Protocol Modbus RTU (Slave Mode)
Address 1 to 247
Baud Rate 2.8 KBPS to 115.2 KBPS
Parity Bit None, Even or Odd
Stop Bit 1 or 2 Bits
Data Length 7 or 8 Bits
Communication Buffer 160 Bytes

Analog Retransmission

Model C22 C62 C82 C83 C72 C42 R22
Output Signal 4 – 20 mA, 0 – 20 mA, 0 – 10 VDC
Resolution 15 Bits
Accuracy ± 0.05 % of Span ± 0.0025% / °C
Load Resistance 0 to 500 Ω for Current Output, 10 KΩ minimum for Voltage Output
Output Regulation 0.01 % for full load change
Output Setting Time 0.1 Second (Stable to 99.9 %)
Isolation Breakdow 1,000 VAC minimum
Integral Linearity Error ±0.005 % of Span

Analog Retransmission

Model C22 C62 C82 C83 C72 C42 R22
Temperature Effect ±0.0025 % of Span / °C
Saturation Low 0 mA or 0 VDC
Saturation High 22.2 mAor 5.55 VDC,11.1 VDC minimum
Linear Output Range 0 – 22.2mA (0 – 20mA / 4 – 20mA), 0 – 5.55VDC (0 – 5VDC / 1 – 5VDC), 0 – 11.1VDC (0 – 10VDC)

User Interface

Model C22 C62 C82 C83 C72 C42 R22
Keypad 4 Keys
Display Type 4 Digit LCD Display
Number of Display 2 3 2
Upper Display Size 0.4” 0.58” 0.7” 0.7” 0.58” 0.98” 0.98”
Lower Display Size 0.19” 0.3” 0.4” 0.4” 0.32” 0.55” 0.25”

Programming Port

Model C22 C62 C82 C83 C72 C42 R22
Interface Micro USB
PC Communication Function Parameter Configuration and Firmware Upgrade

Control Mode

Model C22 C62 C82 C83 C72 C42 R22
Output 1 Reverse (Heating) or Direct (Cooling) Action
Output 2 PID cooling control, Cooling P band 50 ~ 300 % of PB, Dead band -36.0 ~ 36.0 % of PB
ON-OFF 0.1 °C~50.0 °C( 0.1~ 90.0 °F) hysteresis control (P band = 0)
P or PD 0 – 100.0 % off set adjustment
PID Fuzzy logic modified Proportional band 0.1 °C~500.0°C (0.1~900.0 ), Integral time 0-3,600 Seconds, Derivative time 0-360.0 seconds
Cycle Time 0.1 to 90.0 Seconds
Manual Control Heat (MV1) and Cool (MV2)
Auto-tuning Cold Start and Warm Start
Failure Mode Auto transfer to manual mode while sensor break or A – D Converter damage
Ramping Control 0~500.0 °C (0~900.0°F )/Minute or 0~500.0 °C (0~900.0 °F )/ Hour Ramp Rate

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