This document describes the UTC-2202G Temperature Controller, a device designed for precise temperature management.

Function Description

The UTC-2202G is a temperature controller that offers various control modes and features for industrial applications. Its primary function is to regulate temperature based on user-defined set points and parameters. The device supports different input types (J, K, PT-100, J.1, K.1, PT.1) and provides multiple control outputs, including PID, ON-OFF, and alarm functions. It also incorporates a "Soak Time" feature, allowing the process to be held at a preset temperature for a specified duration.

The controller can operate in several cases, including:

Case 1: Heat + Soak + Alarm: For processes requiring heating, a soak period, and alarm notifications.
Case 2: Heat + Heat: For dual heating applications.
Case 3: Heat + Cool: For applications requiring both heating and cooling control.
Case 4: Heat + Alarm: For heating with alarm functionality.
Case 5: Cool + Cool: For dual cooling applications.
Case 6: Cool + Alarm: For cooling with alarm functionality.
Case 7: Alarm + Alarm: For dual alarm functionality.

The device features an Auto-tuning function that automatically calculates and sets optimal Proportional band (Pb), Integral time (It), Derivative time (dt), and cycle time parameters based on the process characteristics. A dedicated LED indicates when Auto-tuning is active. If power is interrupted during auto-tuning, the process will restart upon power restoration.

Important Technical Specifications

Output Specification:

Relay Output: 2 nos.
Relay Type: 1 C/O, (NO-C-NC)
Rating: 10A, 230V AC / 28V DC
SSR Drive Output: 12V DC, 30mA DC (ON-OFF Condition)
Relay 1 Parallel to SSR: Yes

Environment Condition:

Operating Temp.: 0°C to 55°C
Relative Humidity: Up to 95% RH (non-condensing)
Protection Level: IP-65 (Front side) As per IS/IEC 60529: 2001

Technical Specification:

Input Types: J, K, PT-100, J.1, K.1, PT.1
Resolution: J,K,PT-100 = 1°C; PT.1 = 0.1°C
Indication Accuracy: ±1% of FSD ± 1°C
Display: Upper: 4 digit, 7 segment, 0.70"; Lower: 4 digit, 7 segment, 0.50"
Keys: SET, INC, DEC, ENT
Dimensions: 72 (H) x 72 (W) x 85 (D) mm
Panel Cutout: 68 (H) x 68 (W) mm
Control Method:
- Heating: 1) PID control with Auto-Tuning, 2) (TP) Time Proportional, 3) ON-OFF control
- Cooling: 1) BL.TP (Blower Time Proportional), 2) ON-OFF control
- Alarm: High / Low / Absolute Low / Inband / Absolute Outband / Outband / End Alarm
Power Supply: 100 to 270V AC, 50-60Hz
Power Consumption (VA Rating): Approx. 4VA @ 230V AC MAX

Range for Control Parameters:

PB (Proportional Band): 0.0 to 999.9°C
IT (Integral Time): 0 to 9999
DT (Derivative Time): 0 to 9999
CT (Cycle Time): 4 to 99 sec
Offset: -20 to 20°C (for J, K, PT-100) / -20.0 to +20.0°C (for J.1, K.1, PT.1)
HYS1/HYS2 (Hysteresis): 1 to 100°C (for J, K, PT-100) / 0.1 to 100.0°C (for J.1, K.1, PT.1)
Soak Time (SKTM): 0 to 999 (Unit As Per Soak Unit Selected)

Usage Features

Key Operation:

SET: To enter parameter setting.
A (Up Arrow): To start/stop PID auto tuning, increment parameter value.
V (Down Arrow): To go to factory setting mode (press 3 sec), decrement parameter value.
ENT: To reset process after soak time end, save & exit parameter setting.

Parameter Setting:

Set Point Setting: Allows setting of primary (PV) and secondary (SV) values, and alarm limits (LO, HI).
Control Parameter Setting: Configures PID parameters (Pb, It, dt, Ct), cooling parameters (C-Pb, C-On, C-Off), and alarm parameters (AL.n, AL.n2).
Basic Configuration: Sets input type (In.Pt) and control logic cases (Heat + Soak + Alarm, Heat + Heat, etc.).

Soak Time Function:

Allows holding the process at a preset temperature for a preset time (0 to 999 hours).
Displays "End" when soak time is completed. Pressing ENT for 3 seconds restarts the process.
Soak Time Memory (READ): If power fails, "YES" indicates remaining soak time continues on power-up; "nO" indicates soak time restarts.
Soak Time End (End): If "SAVE" is applied in configuration, the "End" display persists after power failure and resets only by pressing ENT for 3 seconds.

Error Display:

OPEN: Sensor not connected, over-range condition, or sensor break.
Sr.E: Sensor connection is reversed.
Corrective Action: Check sensor and input wiring. If the problem persists, replace the sensor or contact the company.

Status LED Description:

1: Soak Time counting indication.
2: Control O/P 1.
3: Control O/P 2.
4: Auto Tuning on indication.

Maintenance Features

Mechanical Installation Guidelines:

Prepare the panel cutout with specified dimensions.
Fit the unit into the panel using the provided clamp.
Ensure the equipment is not near heat sources, caustic vapors, oils, steam, or other unwanted byproducts.
Use specified size crimp terminals (M3.5 screws) for wiring the terminal block, tightening to 1.2 N.m.
Do not connect anything to unused terminals.

Maintenance:

Regularly clean the equipment to prevent blockage of ventilating parts.
Clean with a soft cloth; do not use isopropyl alcohol or other cleaning agents.
Fusible resistor must not be replaced by the operator.

Safety Precautions:

Always follow safety codifications and instructions in the manual.
Improper handling may impair the protection provided by the equipment.
Read instructions before installation and operation.
WARNING: Risk of electric shock.
- Power supply must be OFF during wiring.
- Do not touch terminals when power is supplied.
- Use adequate rated and twisted wires for reduced electromagnetic interference.
- Cable for power connection must have a cross-section of 1mm or greater with insulation capacity of at least 1.5kV.
- Use standard power supply cable for better anti-noise effect.

Installation Guidelines:

The equipment is built-in type and typically becomes part of a main control panel, making terminals inaccessible to the end user after installation.
Prevent metal pieces, wire clippings, or fine metallic fillings from entering the product to avoid safety hazards.
Install a circuit breaker or mains switch between the power source and supply terminal for easy ON/OFF control, located in an accessible place.
Use and store the instrument within specified ambient temperature and humidity ranges.

MULTISPAN UTC-2202G - Case - 4 Heat + Alarm; Case - 5 Cool + Cool; Case - 6 Cool + Alarm

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