Brainchild BTC Series Established Process and Temperature Controllers

The Fuzzy Logic plus PID microprocessor-based temperature controller, incorporate one bright, easy to read 4-digit LED display, indicating process value and setpoint value. The Fuzzy Logic technology enables a process to reach a predetermined set point in the shortest time, with the minimum of overshoot during power-up or external load disturbance.

Feature

• Easy-to-use
• Fuzzy modified PID heat & cool control
• Fast A-D sampling rate (5 times/s)
• Universal input (PT100, thermocouple)with high accuracy 18-bit A-D
• Analog output (linear current or voltage)uses high accuracy 15-bit D-A
• RS-485 RS-232 interface
• Programming port provided on board
• Support manual control & auto-tune function
• Wide variety of alarm mode selection
• Lockout protection control
• Bumpless transfer during failure mode
• Soft-start ramp and dwell timer
• Bright display stabilized with digital filter
• Front panel sealed to NEMA 4X & IP65(model C21)
• UL/CSA/CE approval
• High performance with low cost

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Specification

Power

90 - 250 VAC, 47 - 63 Hz, 12VA, 5W maximum

11 - 26 VAC / VDC, SELV, Limited Energy, 12VA, 5W maximum

Input

Input 1	Characteristics
Resolution	18 bits
Sampling Rate	5 times / second
Maximum Rating	-2 VDC minimum, 12 VDC maximum( 1 minute for mA input )
Temperature Effect	±1.5 UV/ °C for all inputs except mA input ±3.0 UV/ °C for mA input
Sensor Lead Resistance Effect	T/C: 0.2uV/ohm 3-wire RTD: 2.6 °C/ohm of resistance difference of two leads 2-wire RTD: 2.6 °C/ohm of resistance sum of two leads
Burn-out Current	200nA
Common Mode Rejection Ratio ( CMRR )	120dB
Normal Mode Rejection Ratio ( NMRR )	55dB
Sensor Break Detection	Sensor open for TC, RTD and mV inputs, Sensor short for RTD input, below 1 mA for 4-20 mA input, below 0.25V for 1 - 5 V input, unavailable for other inputs.
Sensor Break Responding Time	Within 4 seconds for TC, RTD and mV inputs, 0.1 second for 4-20 mA and 1 - 5 V inputs.

Input 1
Type	Range	Accuracy@ 25 °C	Input Impedance
J	-120 ~ 1000 °C (-184 ~ 1832 °F)	±2 °C	2.2MΩ
K	-200 ~ 1370 °C (-328 ~ 2498°F)	±2 °C	2.2MΩ
T	-250 ~ 400°C (-418 ~ 752°F)	±2 °C	2.2MΩ
E	-100 ~ 900 °C (-148 ~ 1652 °F)	±2 °C	2.2MΩ
B	0 ~ 1800 °C (32 ~ 3372 °F)	±2 °C (200°C - 1800°C)	2.2MΩ
R	0 ~ 1767.8 °C (32 ~ 3214 °F)	±2 °C	2.2MΩ
S	0 ~ 1767.8 °C (32 ~ 3214 °F)	±2 °C	2.2MΩ
N	-250 ~ 1300 °C (-418 ~ 2372 °F)	±2 °C	2.2MΩ
L	-200 ~ 900 °C (-328 ~ 1652 °F)	±2 °C	2.2MΩ
PT100 (DIN)	-210 ~ 700 °C (-346 ~ 1292 °F)	±0.4°C	1.3KΩ
PT100 (JIS)	-200 ~ 600 °C (-328 ~ 1112 °F)	±0.4°C	1.3KΩ
mV	-8 ~ 70mV	±0.05%	2.2MΩ
mA	-3 ~ 27mA	±0.05%	70.5Ω
V	-1.3 ~ 11.5V	±0.05%	650KΩ

Output

Output 1 / Output 2	Linear Output Characteristics
Relay Rating	2A/240 VAC, life cycles 200,000 for resistive load
Pulsed Voltage	Source Voltage 5V, current limiting resistance 66Ω .

Linear Output Characteristics
Type	Zero Tolerance	Span Tolerance	Load Capacity
4-20 mA	3.6-4 mA	20-21 mA	500Ω max.
0-20 mA	0 mA	20-21 mA	500Ω max.
0-5 V	0 V	5-5.25 V	10KΩ min.
1-5 V	0.9-1 V	5-5.25 V	10KΩ min.
0-10 V	0 V	10-10.5 V	10KΩ min.

Linear Output
Resolution	15 bits
Output Regulation	0.02 % for full load change
Output Settling Time	0.1 sec. ( stable to 99.9 % )
Isolation Breakdown Voltage	1000VAC
Temperature Effect	±0.01 % of SPAN / °C

Triac ( SSR ) Output
Rating	1A / 240 VAC
Inrush Current	20A for 1 cycle
Min. Load Current	50 mA rms
Max. Off-state Leakage	3 mA rms
Max. On-state Voltage	1.5V rms
Insulation Resistance	1000 Mohms min. at 500 VDC
Dielectric Strength	2500 VAC for 1 minute

Alarm( Output 2 )
Alarm 1 Relay	Form C, Max. rating 2A/240VAC, life cycles 200,000 for resistive load.
Alarm Functions	Dwell timer, Deviation High / Low Alarm, Deviation Band High / Low Alarm Process High / Low Alarm
Alarm Mode	Normal, Latching, Hold, Latching / Hold.
Dwell Timer	0.1 - 4553.6 minutes

Data Communication
Interface	RS-232 ( 1 unit ), RS-485 ( up to 247 units )
Protocol	Modbus Protocol RTU mode
Address	1 - 247
Baud Rate	2.4 ~ 38.4 Kbits/sec
Data Bits	7 or 8 bits
Parity Bit	None, Even or Odd
Stop Bit	1 or 2 bits
Communication Buffer	160 bytes

Analog Retransmission
Output Signal	4-20 mA, 0-20 mA, 0-1V, 0-5V, 1-5V, 0-10V
Resolution	15 bits
Accuracy	±0.05 % of span ±0.0025 %/ °C
Load Resistance	0 - 500 ohms ( for current output ),10 K ohm minimum ( for voltage output )
Output Regulation	0.01 % for full load change

User Interface
Dual 4-digit LED Displays	BTC-4100                  Upper 0.55" ( 14mm ) Lower 0.4" ( 10 mm ) BTC-7100, BTC8100, BTC9100 Upper 0.4" ( 10 mm ) Lower 0.31" ( 8 mm )
Keypad	4 keys
Programming Port	For automatic setup, calibration, and testing
Communication Port	Connection to PC for supervisory control

Control Mode
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 - 90.0 ( °F ) hysteresis control ( P band = 0 )
P or PD	0 - 100.0 % offset adjustment
PID	Fuzzy logic modified, Proportional band 0.1 ~ 900.0°F, Integral time 0 - 3600 seconds , Derivative time 0 - 360.0 seconds
Cycle Time	0.1 - 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 ~ 900.0°F/minute or 0 ~ 900.0 °F/hour ramp rate

Digital Filter
Function	First-order
Time Constant	0, 0.2, 0.5, 1, 2, 5, 10, 20, 30, 60 seconds programmable

Environmental & Physical
Operating Temperature	-10°C ~ 50°C
Storage Temperature	-40°C ~ 60°C
Humidity	0 to 90 % RH ( non-condensing )
Altitude	2000m maximum
Pollution	Degree 2
Insulation Resistance	20 Mohms min. ( at 500 VDC )
Dielectric Strength	2000 VAC, 50/60 Hz for 1 minute
Vibration Resistance	10 - 55 Hz, 10 m/s² for 2 hours
Shock Resistance	200 m/s² ( 20 g )
Moldings	Flame retardant polycarbonate
Dimensions	BTC-4100 ---96mm(W) X 96mm(H) X 65mm(D), 53 mm depth behind panel BTC-7100 ---72mm(W) X 72mm(H) X 78.2mm(D), 65 mm depth behind panel BTC-8100 ---48mm(W) X 96mm(H) X 80mm(D), 65 mm depth behind panel BTC-9100 ---48mm(W) X 48mm(H) X 116mm(D), 105 mm depth behind panel
Mounting	BTC-4100 ---panel mount, cutout 92 X 92 ( mm ) BTC-7100 ---panel mount, cutout 68 X 68 ( mm ) BTC-8100 ---panel mount, cutout 45 X 92 ( mm ) BTC-9100 ---panel mount, cutout 45 X 45 ( mm )
Weight	BTC-4100 --- 250 grams BTC-7100 --- 200 grams BTC-8100 --- 210 gram BTC-9100 --- 150 grams

Approval Standards
Safety	UL 61010C-1 , CSA C22.2 No. 24-93 , EN61010-1 (IEC1010-1)
Protective Class	IP65 front panel with an additional option, IP50 front panel without additional option, all indoor use, IP 20 housing and terminals with protective cover.
EMC	EN61326