The Unitech Instrument's Clean Room Indicator, model UT-1406, is a microprocessor-based device designed to simultaneously display Temperature, Humidity, and Room Pressure Difference in a single unit. It features an elegant appearance, is easy to operate, and compact in size, making it suitable for various cleanroom applications. The device is highly accurate and sturdy in operation, ensuring reliable performance in demanding environments.
Function Description:
The UT-1406 accepts inputs from standard T+RH sensors or internal sensors. It displays temperature in the range of 0 to 100°C, humidity from 0.0 to 100.0% RH, and pressure difference from 0 to 100 Pascal. These values are shown on three-digit, 0.56" bright red LED displays. The device also includes High and Low alarm LED outputs, which are settable through programming modes. An inbuilt buzzer provides audible alerts for process value violations.
Important Technical Specifications:
- Nos. of input: 3 (TEMP + RH + DP)
- Temperatures input: Integral or Remote (external)
- Humidity input: Integral or Remote (external)
- DP input: Integral or Remote (external)
- Transmitter power supply: 24V/5V DC @ 30 mA max, isolated from I/p & O/P.
Indication:
- Channel-1 (Temperatures): 3 digit Seven segments 0.56" RED display.
- Channel-2 (Humidity): 3 digit Seven segments 0.56" RED display.
- Channel-3 (DP): 3 digit Seven segments 0.56" RED display.
- Status indication: 6-LEDs for visual alarms, buzzer for audible alarm, LED for 485-comm.
Range:
- Temperatures: 0 to 60.0 °C with decimal point.
- Humidity: 0 to 99.9 % with decimal point.
- DP: -10 to 10 mm / -25 to 25mm / -100-100 mm / -200 to 200 mm wc.
- Display Resolution: 0.1 for Temp. & Rh. For DP mm wc: 0.1 / PA: 1 / Hpa: 0.01
Accuracy:
- Temperatures: 0.25% on FS (Response time: 8 sec)
- Humidity: 2.5% for 10 to 90% RH, rest of 3% (Response time: 4 sec)
- DP: 1% on FS in all unit (Response time: 1 sec)
Communication:
- Communication Protocol: Modbus RTU RS-485 Isolated communications.
- Programmable parameter: Baud rate, Parity, Node address, stop bit.
- Read/write parameter: Process value, decimal point (Read); Hi Low set point (Write).
- No. of slave ID: Total 1-256 unit.
- Default Communication Details: Baud Rate: 9600, Parity: None, Databit: 8, Stop Bit: 1, Node Address: 1.
Programmable Parameters:
- Set point / High scale / Low scale: Full range as per input selection.
- Programming of parameters: Through 4 tactile keys (with password protections).
- Alarm logic: Full Scale Hi OR Full Scale Low.
Other:
- Mounting: Bricks and modules wall Flush panel mounting.
- MOC: Full S S 316 plate and box, back side wall mounting M S covers.
- Supply voltage Power consumption: 24 V DC @ 4 watts maximum.
- Operating ambient temperature and humidity: 0~50 °C, Below 90%, non-condensing.
Flame Proof (if applicable):
- Gas group: I IIA IIB as per IS 2148/1981.
- Enclosure certification: Enclosure is certified by C.M.R.I. Dhanbad.
- Display glass: Clear glass thognet type A as per Is 2206.
- Degree protection: IP 65 as per IS 2147.
- Material of constructions: Aluminum alloy.
- Cable entry: 5 x 3/4" ET.
Usage Features:
- Microcontroller based design: Ensures efficient and reliable operation.
- Elegant appearance, easy to operate and compact in size: User-friendly design for seamless integration into cleanroom environments.
- Highly accurate and sturdy in operation: Provides precise measurements and durability.
- Three display for simultaneous indication of T, RH and ΔP: Offers comprehensive monitoring at a glance.
- RS-485 Communication available: Enables integration with PLC, SCADA, and other master devices for remote monitoring and control.
- Programmable ranges and units: All channels can be configured through the front keypad.
- User selectable set limits for process value violation: Allows customization of alarm thresholds.
- Password protection: Secures calibration and programming modes.
- Software Calibration for 3 channels: Facilitates precise adjustment of readings.
- Programmable device address, baud rate, parity and stop bit: Flexible communication settings.
- Remote programmable from master device: Enhances control and automation capabilities.
- User programmable offset correction: Allows fine-tuning of measurements.
- Compact, All Stainless Steel enclosure with 35 mm depth: Suitable for installation in prefab panels.
- FDA 21 CFR part 11 - GAMP-4 compatible: Meets regulatory requirements for pharmaceutical applications.
- FDA21 CFR part 11 compliance data logging software available: Supports data recording for compliance.
- Ex. Flameproof model available for Hazardous applications: Offers a specialized version for hazardous environments.
Maintenance Features:
The device includes troubleshooting information for common issues:
- OPEN (Sensor break error / Sensor not connected): Solution involves replacing the sensor or checking its connection.
- Keypad no function (Keypads are locked / Keypads defective): Solution involves checking keypad continuity or replacing keypads.
- All LED's and display not light (No power to controller / Control circuit failure): Solution involves checking power lines connection or control supply voltages.
The manual provides detailed instructions for configuration, setup, and calibration modes, all accessible via a password-protected interface. This ensures that only authorized personnel can make critical adjustments, maintaining the integrity of the cleanroom monitoring system.
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