Nippon Medical & Chemical Instruments Co., Ltd. is a manufacturer specialized for environmental control technology.

Plant Growth Chamber ＜Standard model＞ [LED lamp]　　　Biotron

■Temperature Control/Temperature & Humidity Control (LED)

Models L(P)H-241PFP/DT-S(P) and L(P)H-411PFP/DT-S(P) are standard plant growth chambers. There are two control modes available. One is a changeover mode, changing between constant operation and day/night switching operation. The other is a program control mode. Three-position controller is used for temperature and humidity control, which provides energy-saving effects. A wide variety of chambers are available in sizes ranging from 240 liters to 410 liters.

model LH-411PFDT-SP

■Features

• An operation touch panel with time display is mounted on the upper part of the main body, which allows easy operation.
• Model L(P)H-□PFP/DT-S allows both constant operation at any temperature/light/ (humidity) and day/night switching operation.
• Model L(P)H-□PFP/DT-SP allows a program control.
• Five-sided illumination. The light can be continuously dimmed form 20% to 100% or 0%.
• Model LHs don’t need a drain hose or a tank because of a forced evaporation system inside the chamber.
• Three-position controller is used for temperature and humidity control (proportional control for heating), which provides low running costs.
• The inner door has energy-saving functions, being used as one door or two up-and-down doors as per usual.
• Two-level wind speed control is installed to protect wind-sensitive plants..
• A hole of 40 mm diameter for measurement is included as standard.
• Humidity control system can be selected from “only humidification” or “only dehumidification” or “both humidification and dehumidification.”
  
  
  

■Applications

• Plant cell/tissue culture, germination, acclimation, or growth test
• Environmental test
• Growth of rice, arabidopsis, etc.
• Insect experiment
• Cell culture
• Environmental resistance test for plants

■Options

• Table for a water tank (Model LPH),
  

■Safety devices

• Overheat prevention: thermal fuse, overheat thermoswitch (variable), alarm buzzer.
• Overcool prevention: overcool thermoswitch (variable), alarm buzzer.
• Earth leakage breaker.
• Protection device for refrigerator (overload relay)

■Model designation

■Specifications

240 L series

Model	Pink	LH-241PFPT-S	LPH-241PFPT-S	LH-241PFPT-SP	LPH-241PFPT-SP
	Yellow	LH-241PFDT-S	LPH-241PFDT-S	LH-241PFDT-SP	LPH-241PFDT-SP
Outer dimensions (mm)		760W × 726D × 1,767H
Inner dimensions (mm)		512W × 485D × 980H
Control system		Changeover between constant operation and day/night switching operation		Step program, built-in clock control (24 hours) 24 steps/5 patterns,　with pattern link functions
Repeat		━		1 to 99 times or unlimited
Control methods		ON/OFF control for three-position control, refrigerator, and humidifier; and proportional control for heater
Temperature		+5 to 50℃±1℃ (15 to 50℃ when all lights on)
Humidity		━	50 to 80%RH±10%RH （15～45℃）	━	50 to 80%RH±10%RH （15～45℃）
Illuminance		0 to 8,500 lx for pink LEDs and 0 to 15,000 lx for yellow LEDs They can be continuously dimmed from 20% to 100% or 0% (all lights off)
Photon flux density		0 to 180 μmolm-2s-1 for pink LEDs and 0 to 200 μmolm-2s-1 for yellow LEDs
Light source		LED lamps (Plant Flec) for plant growth
Number of LEDs		20W LED x 4 lamps x 2 sides (on the ceiling and door), 40W LED x 4 lamps x 3 sides (on the back, right, and left sides)
Shelf		5 shelves (adjustable)
Refrigerator		200W
Heater		400W	500W	400W	500W
Humidifier		━	80W	━	80W
Operation current (maximum)		8.0A	12.5A	8.0A	12.5A
Power requirement		Single phase 100V 50/60Hz　15A E
Weight (kg）		About 225	About 235	About 225	About 235

400 L series

Model	Pink	LH-411PFPT-S	LPH-411PFPT-S	LH-411PFPT-SP	LPH-411PFPT-SP
	Yellow	LH-411PFDT-S	LPH-411PFDT-S	LH-411PFDT-SP	LPH-411PFDT-SP
Outer dimensions (mm)		880W × 806D × 1,875H
Inner dimensions (mm)		670W × 565D × 1,100H
Control systemd		Changeover between constant operation and day/night switching operation		Step program, built-in clock control (24 hours) 24 steps/5 patterns,　with pattern link functions
Repeat		━		1 to 99 times or unlimited
Control methods		ON/OFF control for three-position control, refrigerator, and humidifier; and proportional control for heater
Temperature		+5 to 50℃±1℃　(15 to 50℃ when all lights on)
Humidity		━	50 to 80%RH ± 10%RH (+15 to 45℃) 50 to 90%RH ± 10%RH (+25 to 45℃)	━	50～80%RH±10%RH (+15～45℃) 50～90%RH±10%RH （15～45℃）
Illuminance		0 to 8,500 lx for pink LEDs and 0 to 15,000 lx for yellow LEDs They can be continuously dimmed from 20% to 100% or 0% (all lights off)
Photon flux density		0 to 180 μmolm-2s-1 for pink LEDs and 0 to 200 μmolm-2s-1 for yellow LEDs
Light source		LED lamps (Plant Flec) for plant growth
Number of LEDs		20W LED x 6 lamps x 1 side (on the ceiling), 40W LED x 4 lamps x 4 sides (on the back, right, and left sides)
Shelf		6 shelves (adjustable)
Refrigerator		300Ｗ
Heater		500Ｗ
Humidifier		━	80Ｗ	━	80Ｗ
Operation current (maximum)		10.0A	13.5A	10.0A	13.5A
Power requirement		Single phase 100V 50/60Hz　15A E
Weight (kg）		About 275	About 285	About 275	About 285

* Temperature sensor = platinum resistance temperature detector, humidity sensor = polymer multi-layer capacitor, humidifier = ultrasonic humidifier, CO₂ sensor = non dispersive infrared method.
* Power requirement does not include the power-outlet installed in the main body.
* These chambers are designed to operate in ambient temperatures up to 30°C. The specified performance may not be achieved depending on actual usage conditions.
* When light is on, temperature setting should be 15°C or higher.
* Use purified water (distilled water or reverse osmosis [RO] water) for the humidifier.
* Drainage might be required depending on samples in the chamber.
* Ensure that there are spaces of 30 cm or more on both sides of the chamber. Otherwise, the cooling function is reduced.
* Accuracy of temperature and humidity is assured only when lights are off.
* If the chamber is to be run at high temperature and humidity for a long time, please ask our dealer.
* If a humidity setting is more than 80% and the freezer starts up, the temperature can be transiently decreased by more than 10% of the set value.
* Environmental conditions (especially low temperature) might cause dew condensation or lower the temperature inside the chamber (about 1°C) at high temperature and high humidity settings.