This document serves as an operating manual for the JEIO TECH Temperature Chamber (Table Top Model) series, specifically covering models TC-ME-025, TC-ME-065, and TC-ME-100. It provides comprehensive information for installation, operation, and maintenance, aiming to enhance equipment productivity through efficient and proven techniques.
Function Description
The Temperature Chamber is designed for precise control of temperature and, in some models, humidity, for various testing and research applications. It offers both fixed-point (FIX Run) and multi-segment program (PROG Mode) operations. The chamber is suitable for a wide range of industries, including pharmaceutical, electronic, automotive, quality assurance, aircraft, chemical, mechanical engineering, plastic, secondary battery, solar energy, transport/traffic, semi-conductor, test laboratories, military engineering, and construction materials.
Key functional components include:
- Controller: An LCD display screen with graphic capabilities for setting and monitoring temperature and humidity parameters. It supports up to 100 programmable segments and 30 patterns.
- Recorder (Optional): A 6-point recorder for data logging, capable of storing temperature and humidity values and profiles. It supports recording ranges from -60 to 150°C and 0 to 100% RH, with various paper widths and recording types.
- Cool Air Inhalation & Hot Air Ventilation Hole: Designed for efficient air circulation, cooling, and heating within the chamber.
- Access Port: Basic ∅50mm ports are standard, with optional ∅50mm or ∅80mm ports available for passing power cables or test samples.
- Condensing Air Ventilation Hole: Perforated plates on the left side and bottom of the rear part of the unit facilitate air circulation and pre-filter and air-blowing.
- Water Tank: For models with humidity control (TH-ME-Type), a water tank is integrated for water supply. It includes a gutter for condensed water, an inlet for pouring water, and a sensor to detect low water levels. Capacities vary by model: TH-ME-PE-025 (5.0L), TH-ME-PE-065 (6.0L), and TH-ME-PE-100 (9.0L).
- Hinge: Robust design for heavy-weight support and durability, with stainless steel knuckle joints and stainless steel cover boas for appearance.
- Electric Circuit Breaker: Ensures electrical safety by cutting off power in case of short circuits or leakages.
- Communication Port: RS-232 is standard, with RS-485 as an optional interface for controlling up to 9 units via PC.
- Door Limit Switch: Activates a signal alarm and stops operation if the door is opened, preventing radical changes in temperature or humidity.
- Shelves: Stainless steel shelves are provided for sample placement, with fine and clean electro-polishing finish.
- Caster: For easy movement, with adjustment for leveling.
- Water Tray: Collects any water leakage or chamber condensate.
- Water Drain Port: Two drain condensate ports are connected to a silicon rubber hose for waste water disposal.
- Evaporator: Aluminum pins for efficient cooling, designed to reduce corrosion.
- Heater: Sheath type heating element for temperature control, with improved response speed and uniform heating.
- Fan/Motor: Circulates air within the chamber.
- Humic, Heater: Components for humidity control.
Important Technical Specifications
The manual covers three chamber volumes: 25L, 65L, and 100L.
- Controller Type: Program controller (LCD Type).
- Temperature Range: -20°C to 120°C / -15°C to 120°C (Program Control).
- Temperature Fluctuation (at 100°C): 0.4°C (25L), 0.3°C (65L, 100L).
- Temperature Variation (at 100°C): 2.0°C (25L), 1.9°C (65L), 1.8°C (100L).
- Heating Time (15°C to 120°C): 55 minutes.
- Cooling Time (20°C to -15°C): 60 minutes (on single point control).
- Refrigeration System: Mechanical single-stage refrigerator system (air-cooled condenser) using R-404A (CFC-free) refrigerant.
- Refrigeration Capacity: 250W (25L, 65L), 375W (100L).
- Cooler Material: Plate fin cooler (Copper).
- Heater Material: Ni-Cr wire heater.
- Heater Drying Bulb (W): 800W (25L), 1000W (65L, 100L).
- Sensor: Pt 100.
- Air Flow: Sirocco fan (60W).
- Interior Material: SUS #304 (2B polish).
- Exterior Material: SUS #304 1.0t / Double painted & baked.
- Insulation: Polyurethane (50mm).
- Interface: RS-232 (RS-485: optional).
- Cable Hole: Basically one ∅50mm hole provided; optionally max. two holes ∅50mm or ∅80mm.
- Dimensions (WxDxH, mm):
- Interior: 350x220x350 (25L), 400x330x495 (65L), 500x380x530 (100L).
- Exterior: 500x760x850 (25L), 550x890x1000 (65L), 650x1000x1030 (100L).
- Power Consumption (AC220V, 1ph, A): 8.8 (25L), 9.7 (65L), 10.5 (100L).
- Weight (net): 75±5Kg (25L), 100±5Kg (65L), 115±5Kg (100L).
- Environmental Setting:
- Ambient temperature: 18°C to 30°C.
- Relative humidity: Not to exceed 85%.
- Altitude: Not to exceed 2000m (6,562 feet).
- Avoid high-frequency noise produced by equipment and/or machinery (e.g., induction heating machines, SCRs).
- Connect to earth grounded terminals only.
Usage Features
- User-Friendly Interface: The LCD display and control buttons allow for intuitive setting and monitoring of parameters.
- FIX Run Mode: Simple operation for maintaining a specific temperature and humidity set point.
- PROG Mode: Advanced programming capabilities for multi-segment testing, allowing users to define complex temperature and humidity profiles over time. Up to 100 segments and 30 patterns can be programmed.
- Software Control: The SP790_Multi Monitoring program allows monitoring of up to 30 units, easy upload/download of programs, and control of saved data. It includes features for initial display, separate operating display, program setting display, and graph display.
- Data Logging: Optional recorder for comprehensive data collection and analysis.
- Safety Features:
- Door open warning alarm.
- Overheat alarm rings with automatic stop function.
- Overcurrent/short circuit protection.
- Electrical instrument part located in the upper panel, and motor & refrigeration part in the rear panel, with automatic power shut-off if the door is blocked.
- Temperature regulator installed inside of chamber, with automatic power shut-off if the inner chamber is overheated.
- Convenient Maintenance: Magnetic door with an intensified glass door for internal observation.
- Water Supply: Easy-to-use water tank system for humidity control models.
- Portability: Casters for easy movement and installation, with leveling feet for stability.
Maintenance Features
- General Maintenance: The manual covers light corrective maintenance. Any installation, service procedure, or other maintenance should only be undertaken by a factory-trained technician.
- Pre-Start-up Checks: Before operation, users must ensure all electrical connections are tight, drain hoses are properly connected, caster feet are lowered and locked, the unit is level, and no flammable or explosive liquids are inside the chamber.
- Daily Checks: Observe all warning labels, check voltage, phase, and power supply, ensure proper grounding, and avoid inserting multiple plugs into outlets.
- Weekly Checks: Clean the chamber with a strong cleanser and soft cloth.
- Responsibility:
- General: Jeio Tech Co., Ltd. is committed to product quality and customer satisfaction, with a quality management system conforming to ISO 9001:2000.
- Operator: Operators are responsible for understanding and following safety guidelines, inspecting the unit daily, and reporting any safety defects or unusual occurrences immediately.
- Maintenance: Maintenance personnel are responsible for effective repair and maintenance, ensuring all electrical supplies and accessories are turned off before working on the machine.
- Warranty: A 2-year limited warranty from the date of purchase covers free service for product troubles. However, the warranty does not cover damage due to acts of God, misuse of voltage, dropping, impact, organic solvents, not following manual instructions, unauthorized repairs, or customer mistakes.
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