Guide for selecting the right temperature
control product for your needs
When choosing temperature control equipment for your specific
application, look no further. Yamato Scientific America provides
more than 50 high quality ovens and incubators at affordable prices.
You will be happy with our reliable, worry-free ovens and incubators
for years to come. Possible uses of ovens and incubators are virtually
endless, from drying food samples to curing microchips. Here are
some of the key questions you can ask yourself before selecting
1. What is your application?
Ovens and incubators are commonly used in laboratories as well
as in manufacturing sites in a wide variety of industry segments.
Some applications include:
Clean process production
| Life test of battery
Serum medicine storage
For over 30 years, Yamato has been helping our customers obtain
reliable results in their testing. Yamato Scientific introduced
the first microprocessor ovens and incubators in the US market
to provide more reliable, and dependable ovens and incubators.
2. Chamber size?
Chamber size is based on the size of the product or parts, the
number of products in each batch, and the number of batches required
per day to meet production requirements. If the interior chamber
is too small, insufficient space between parts results in poor
performance and risk of not being able to obtain the results listed
in Yamato specifications. If it is too large, time and energy are
When using gravity or forced air, please allow 2-3 inches around
each part and away from the oven walls.
When using forced circulating airflow, samples still benefit
from spacing, but can be loaded more densely vertically because
airflow is distributed along the entire sidewalls. Samples should
be placed 2-3 inches from the oven walls.
3. Temperature Requirements
When selecting your application's temperature requirements, the
first thing to consider is the maximum and minimum temperature.
Take a look at our selection chart to determine which oven/incubator
fits your specifications. Besides maximum and minimum temperature,
the following characteristics play an important role:
- The required ramp time (sometimes called rise and fall time)
to reach a maximum temperature, and the overall cycle time needed.
- The type and amount of product load. Be sure that ovens and
incubators have sufficient heating capacity to bring the product
to the desired temperature within the specified time.
- Any specific cool-down requirements
- Whether the heat-up rate needs to be controlled or if the
product can reach the required temperature as quickly as possible.
Please note that Yamato ovens and incubators have many options
in programming to adjust the uniformity such as ramp cycles, calibration
offsets and zero-span calibration.
4. Airflow Type
A. Gravity convection heating
The simplest and most economical approach. Heated air rises, and
then returns to the heat source as it cools. A gravity system
is ideal when you want to process powders and other products
that may be disturbed by forced air. Use a gravity oven when
temperature uniformity is not critical.
B. Forced circulation heating
Incorporates a fan to create vertical or horizontal airflow. Best
for samples where air may pass vertically through or around. Forced
airflow pattern significantly speeds ramp time inside the chamber.
It still requires proper spacing of parts to ensure optimal vertical
or horizontal airflow. In conjunction with exhaust port size modification,
you can also adjust the airflow and temperature of the ovens and
C. Radiant heating
Radiant heating technique is employed when the chamber is in a
vacuum environment and cannot transfer heat efficiently. By surrounding
the chamber with heating elements, the vacuum oven can achieve
5. Construction Quality
Solid construction with proper material selection for ovens and
incubators are important factors to:
-Improve temperature uniformity and performance
-Reduce heat loss and energy expense
-Simplify cleaning up and minimize decontamination
All Yamato ovens and incubators are built to last with high purity
stainless steel (Type 304, 18-8) for inner chambers, shelves, and
shelf brackets for maximum protection against corrosion, rust and
contamination. The exterior housing of the equipment is constructed
with cold rolled carbon steel finished with baked melamine for
durability and appearance. 2” Rock wool is employed to minimize
heat loss outside the equipment.
Do you need a special oven or incubator? Yamato is the expert
on customization. In our 30 year history of manufacturing ovens
and incubators, we encountered requests for various modifications
on our ovens/incubators to meet specific requirements and applications.
A few examples of “retrofits” performed at our facility
-Computer Interface Adapter (RS232C)
-Temperature output terminal
-Cable/exhaust ports (up to 3")
-Temperature recorder (24hs/d days)
-Additional observation window
Special Ovens, Customization of Ovens and
Yamato Scientific has been manufacturing ovens and incubators
for our customers for over 30 years. Yamato provides more varieties
than any other manufacturer in the industry.
- A. Inert gas ovens (DN series)
- Inert atmosphere ovens provide a port for nitrogen or argon
gas, which some processes require to prevent oxidation at elevated
temperatures. Inert gas is injected into the chamber, pressurizing
the oven and replacing the oxygen. The chamber of inert gas ovens
employs high integrity welds and special motor seals to maintain
the inert atmosphere and ensure process consistency.
- B. Clean room ovens (DE series)
- Clean process ovens prevent particulate contamination of sensitive
products through special construction and filtration by using
High Efficiency Particulate Air (HEPA) filters. The rounded corners
and continuous back welding prevents migration of particles into
- C. Energy saving ovens (DE/DNE series)
- Yamato R & D has re-designed energy saving ovens which
use state of the art insulation, and a reengineered heater to
reduce energy consumption by up to 30%.
- D. Vacuum Oven (ADP, DP series)
- Vacuum ovens are often used when the user needs to process
samples in a vacuum environment, preventing prevents oxidization.
A purge port is standard on all vacuum ovens.
- E. Customization of ovens
- Yamato's expertise is to customize conventional ovens tailor
to the needs of our customers. The possibilities are endless.
Here are some examples:
Programmable controller with RS 232C
Cable/Exhaust port (up to 3")
Temperature recorders (24h/7days)
220 volt conversion
Temperature output terminal
- F. Smart ovens and incubators – for advance applications
- Controllers play a key role in overall oven performance. Yamato
introduced the first microprocessor-based oven in the US market
in 1980's. Since then, Yamato has led the “smart oven & incubator” technology
with our innovative programming capability. Precise temperature
control is achieved with a thermocouple sensor and solid-state
Single set point PID controllers are the simplest type to use
and are appropriate when the process requires only one set point
Programmable ramp/soak controllers are appropriate when multiple
set point temperatures are required, or when the rate of heating
must be controlled., An optional serial communications port (RS232)
allows data communication between the oven controller and a PC.