The Associated Environmental LH-1.5 is a benchtop environmental test chamber designed to simulate a wide range of temperature and humidity conditions. It is engineered for precise control and reliable performance, making it suitable for research, development, and quality control applications involving small components and materials. The chamber features a user-friendly interface and a compact design that optimizes laboratory space, with an optional stackable floor stand allowing for increased mobility and flexibility in testing setups.
### Technical Specifications
* **Manufacturer:** Associated Environmental Systems
* **Model:** LH-1.5
* **Type:** Benchtop Environmental Test Chamber (Temperature and Humidity)
* **Working Volume:**
* 1.5 cubic feet (42.5 liters)
* Approximately 1.37 cu ft (38.79 liter) for LH-1.5-B model
* **Interior Dimensions:**
* 12″ W x 12″ D x 18″ H
* 13″ H x 14″ W x 13″ D
* 355.5 mm W x 330.2 mm D x 330.2 mm H
* **Exterior Dimensions:**
* 28″ W x 23″ D x 40″ H
* 33″ H x 27″ W x 26″ D
* 33”H x 27”W x 26”D
* **Weight:** 240 lbs
### Environmental Simulation Capabilities
* **Temperature Range:**
* -73°C to +177°C (-99°F to +350°F)
* 0°C to 60°C
* -20°C to +94°C (-4°F to +201.2°F)
* -20°C to +94°C (-4°F to +200°F)
* -70°C to +180°C
* Optional: 5°C to +94°C (+41°F to +200°F)
* Optional: Extended Temperature Range to -20°C
* **Temperature Control Accuracy:**
* ±0.5°C at the sensor
* Within ±0.5°C of the set point
* ±0.5°C
* **Humidity Range:**
* 20% to 95% relative humidity
* 20% to 95% RH
* 10% RH to 98% RH
* 10-95% RH, limited by +4°C Td
* 20% to 98% RH
* 10-90% RH
* **Humidity Control Accuracy:**
* ±2% RH at the sensor
* ±3% RH
* **Dew Point Limitation:** As limited by a +4°C dew point
* **Maximum Temperature with Humidity:** +85°C
### Construction and Features
* **Cabinet Construction:**
* Exterior: Heavy-gauge, cold-rolled steel with powder coat, bone color, and textured matte finish. Heavy gauge cold rolled steel with powder coat paint.
* Interior: Type 304 stainless steel with 2B finish. All stainless steel type 304.
* **Door:** Full opening door with adjustable manual latch. Full opening door, left hand hinge, with manual door latch.
* **Viewing Window:** Multipane 12 in x 12 in viewing window, no heat available.
* **Shelving:** Fully adjustable stainless steel wire grid shelf. Fully adjustable shelf.
* **Access Port:** 3” access port and plug on left side wall. Port configuration: left wall access port and plug.
* **Lighting:** Interior light with exterior switch on cabinet face and operable on AESONE CONSOLE.
### Control and Instrumentation
* **Controllers:**
* Watlow EZ-Zone PM controllers, one each for temperature and humidity control with Modbus RTU via RS-485 communications.
* Manual two channel Microprocessor based digital set – Digital indicating controller, temperature in °C or °F. Humidity direct RH.
* Digital set/digital read controller.
* LCD touchscreen and a complete digital user interface with a PID microcontroller for programming and setting humidity and temperature.
* Watlow F4 Programmable Controller with RS232 Interface (Optional).
* **Sensors:**
* 100 ohm platinum RTD temperature sensor.
* Rotronics solid state humidity sensor.
* Electronic dew point sensor.
* **AESONE CONNECT®:** Features remote monitoring and data logging. Integrated instrumentation creating a robust connected device for a standard and uniform interface.
### Electrical and Power Requirements
* **Power Requirements:**
* 208–230V, 50/60 Hz
* 120V, 60Hz
* 120 Volts, 1 Phase
* Individual chamber power requirements are stamped on the model nameplate affixed to the rear of the chamber.
* **Power Cable:** 6′ power cable and plug type NEMA 5.
* **Grounding:** Positive earth ground is required to avoid shock hazards.
### Conditioning System
* **Refrigeration System:**
* Air cooled mechanical refrigeration conditioning unit with R-134a refrigerant.
* Self-contained, compact, mechanical, single-stage refrigeration system.
* The double skin improves temperature distribution and offers increased flexibility by allowing higher temperature control.
* **Heating System:** Open ceramic-core nichrome heaters for reliable and accurate temperature control. Two heaters with high wattage, installed internally, offer rapid temperature change.
* **Humidity System:**
* Steam generator (currently non-operational on one listed unit).
* Adjustable humidity pans inside the chamber offer precise control of humidity levels.
* Water Recirculation System: Provides demineralized water for the humidity system. Requires demineralizer cartridge placed downstream of the pump..
* Self Contained Recirculating Humidity System with 6 Gallon Reservoir (Optional).
* **Airflow:** Advanced airflow unit with two axial fans, ensuring uniform temperature in the chamber.
### Safety Features
* High temperature limit switch.
* High-Temperature Limit Switch.
* Low Water Steam Generator over Temperature Circuit.
* Refrigeration System Overpressure Safety Circuit.
* UL/CSA 61010-1 certified by TUV Rheinland.
* UL 61010-1:2012 certified.
* CAN/CSA-C22.2 No. 61010-1-2 certified.
### Options and Accessories
* Optional floor stand to increase mobility and lab testing flexibility.
* Stackable floor stand allowing for two chambers in the same footprint.
* Custom Port Sizes.
* Shelf Modification.
* IEEE-488 Interface.
* Ethernet Interface.
* Dry Nitrogen Purge.
* Programmable Chart Recorder.
* Adjustable High/Low Temperature Safety.
* Demineralizer Cartridge System.
* Touch Screen Control.
* Air Dryer for Lower Humidity Range.
Why Choose Aumictech for Associated Environmental LH-1.5?
At Aumictech, we specialize in supplying high-end environmental test equipment. Whether you need precise temperature and humidity control, reliable simulation of diverse environmental conditions, or robust data logging capabilities, our team ensures the Associated Environmental LH-1.5 delivers maximum performance for your application.
