Profile

Our family of products consists of: Temperature related instruments like Indicators, Single set point controllers, Two/Four set point controllers, transmitters, Temp. Sensors, Scanners Flame Proof Indicators and Controllers, Maxthermo make PID controllers etc. and general purpose instruments like Timers, Counters and Length meters, Cyclic Timers. In addition, we have developed customized instruments like, Temperature controller and Soak timer coupled in one unit (Temp-Time), RH -cum-Temperature controller, Process controller Profile Controllers, etc.

Micro Processor Based PID Controllers

Features:

• PID auto tuning
• Two Fuzzy PID control processes, with two individual outputs
• Multi range input (TC, RTD, mY), each 14 BIT resolution.
• Relay output SSR drive, 4-20mA changeable by a module.
• Three-point alarm, with 19 alarm modes.
• Non-volatile memory.
• Self diagnosis function.
• Auto Zero and Auto Span circuit to keep good accuracy.
• Free range voltage from AC 85V-265V or DC 15-50V.

Specifications:

[ Input Main ]
T/C (Thermocouple) : K,J,R,S,B,E,N,T,W,Cu selectable
PID PT100 (DIN) selectable.
DCV: -10~10mV, 0~10mV, 0~20mV, 0~50mV, 0~1V, 0~5V
0~10V selectable
DC mA: 0~20mA, 4~20mA selectable or others to be ordered.

Input [Sub]

Remote set: -4~20mA, 0~10V to be ordered.

Output

Relay output: SPST, SPDT 5A1240VAC.
SSR drive: 20mAl20 VDC
Current proportioning output: 4-20mA adjustable (Load max 800 ohms)
Three wire system motor valve control10Al240VAC
Alarm: SPST 5A1240VAC for MC·2438, 2738
SPDT 5A1240VAC for other models

Control mode

ON/OFF: sensitivity adjustable
P (Proportional) : 0-100% adjustable I (Integral) : 0-3600 sec adjustable
D ( Derivative) : 0-3600 sec adjustable
Proportioning cycle time: 0-100 sec adjustable
(mA=1, SSR=3, RY>=20)
Cycle Time : 0 -100 Sec.

• Data lock function.
• 1 ramp and 1 soak or 2 patterns each 8 segment programming procedure.
• Input 2 can be used as Remote SV.
• Optional transmitter output.
• With output percentage control, if sensor brakes the controller automatically convert to
manual operation to be controlled by heating power with output percentage.
• Control Mode: Heat / Cool Selectable.
• RS 232 or RS 485 is available for remote monitoring.

Mechanical characteristics
Working temperature: -10- + 50°C
Storage temperature: -10- + 70°C
Working humidity: 50 - 85% RH non-condense
Weight: MC-2438 about 190 g | MC-2538, 2638, 2738 about 310 g | MC-2838 about 410 g

Electrical characteristics
Working voltage: AC 85-265V, DC 15-50V
Power consumption: 2VA
Isolated resistance: >=20MOHms
Dielectricity strength: AC2000V 50/60Hz 1 min
Sampling time: 250m sec
Accuracy: ±0.2% of full range ±1 digit