Folyon H300P User manual

Model H300P
Temperature Humidity Chamber
with Watlow PM PLUS Controllers
Operation and User’s Manual
Folyon Technologies Inc.
1358 Hooper Ave, #104
Toms River, NJ 08753, USA
[phone]
www.folyon.com
[email protected]
Co;yright © 2012-2020 Folyon Technologies Inc. Made in the U.S.A October 2020 Rev PMP_D

H300P Temperature Humidity Chamber Page 2
Introduction
The H300P is a simple to use, versatile temperature / humidity chamber. Its super compact design allows it
to be placed on any table top. Its solid state design means low noise and low power operation. The solid
state design also removes the need for user maintenance other that refilling water and desiccant.
The H300P comes in four configurations:
•H300P: Simple set point control for temperature and humidity
•H300PRT: Profiling control for temperature, simple set point control for humidity
•H300PRH: Simple set point control for temperature, profiling control for humidity.
•H300PRTH: Profiling control for both temperature and humidity.
A profiling controller allows the user to setup a program for the chamber to follow. For instance: Goto
50%RH at 1%RH per minute, stay at 50%RH for 30 minutes, go to 75%RH as fast as possible, stay at 75%RH
for 1 hour, etc.
For easy remote access, configuration and monitoring get the Watlow EZ-LINK™ mobile app on your phone
or tablet. The app uses Bluetooth® to communicate with the controllers.
Safety Instructions
Follow all CAUTION notices to prevent damage to the chamber. Failure to follow all CAUTION notices may
void your warranty.
WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious
injury.
The safety alert symbol precedes a general CAUTION or WARNING statement.
The electrical hazard symbol precedes an electric shock hazard CAUTION or WARNING statement.
Installation Safety Notices
WARNING: The power cord is equipped with a NEMA 5-15P grounded GFCI plug. To prevent a shock
hazard, DO NOT defeat the ground or GFCI features. This device MUST be plugged into a
properly grounded receptacle.
CAUTION: The minimum clearance you should allow for proper ventilation around the chamber must be
at least 6" from the rear, and 3’’ from both the left and right side.

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CAUTION: This chamber is designed for operation in a conditioned laboratory environment. Operation
above 30°C (85°F) or below 16°C (60°F) ambient room temperature is NOT recommended.
Operation Safety Notices
CAUTION: The Watlow “PM PLUS 6 User’s Manual” is a general manual and is written for a wide variety
of applications and configurations. Not all features or functions are applicable.
CAUTION: The PM PLUS 6 Controllers have been properly configured at our factory to match the
chamber’s system requirements and to perform optimally over a wide range of operating
conditions. Improper modifications to these setup values can result in erratic performance
and unreliable operation. Do not attempt to modify the setup values, unless you thoroughly
understand what you are doing. If there is any doubt, please contact the Folyon
Technologies before proceeding.
CAUTION: Avoid touching the sensor assembly inside the chamber.
WARNING: Do NOT put items in the chamber that could burn or explode. This is NOT an explosion-proof
chamber.
WARNING: Do NOT put items in the chamber which can emit corrosive vapors or substances.
WARNING: This chamber is NOT a curing oven. There are NO provisions for venting fumes.
WARNING: Always unplug the chamber from the outlet when filling the water reservoir with water. If
water is spilled inside the chamber, do not plug in! Allow sufficient time (at least 24 hours)
for the water to dry.
WARNING: The chamber is designed to operate in not condensing conditions only. It is up to the
operator to ensure that condensation does not occur inside the chamber. Condensation
inside the chamber can damage the sensors and the internal components of the chamber.
Operating the chamber when condensation is present inside the chamber will void the
warranty!
WARNING: Before the chamber is shipped using a common carrier such as UPS, FexEx, DHL and the
Postal Service, all water must be emptied from the water reservoir. The water can be
emptied by tilting the chamber and emptying all the water into a bucket, through the
filling tube. Make sure the unplug the chamber before filling or emptying water.

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Installation Location
The chamber uses only about 120W of power. For optimum operation, the ambient room temperature
should be between 85°F (30°C) and 60°F (16°C).
The chamber can be placed on any solid, level table top or work bench. For proper ventilation, allow a
clearance of at least 6” from the rear and 3” from the right and the left side of the chamber.
Before powering ON the chamber, make sure there is sufficient water in the water reservoir. Filling the
water reservoir is described in the Setup section below.
Moving and Shipping the Chamber
Caution must be observed when the chamber is moved while there is water in the water reservoir. The
chamber is equipped with two recesses on each side for gripping. When moving the chamber, make sure
the chamber is not tilted in such a way that water spills out. If any spillage occurs, leave the chamber
unplugged for at least 24 hours to allow all the spilled water inside the chamber to dry.
Before the chamber is shipped to a different location, all water must be emptied from the water reservoir.
The water can be emptied by tilting the chamber and emptying all the water into a bucket, through the
filling tube.
Make sure the unplug the chamber before filling or emptying water.
Setup
Before the H300P can be used, it needs to have sufficient water and desiccant for proper operation. The
chamber comes from the factory with the desiccant preloaded, but without any water.
Filling the Water Reservoir
Use only distilled water in the water reservoir.Do not use tap water or bottled water that is not
distilled (e.g. spring water). The impurities (salts) in regular water affect the vapor pressure and will limit
the maximum humidity the chamber can reach.
The H300P chamber should be filled with distilled water when no water is visible in the filling tube.
To fill the water reservoir follow the simple procedure below:
•Unplug the H300P from the power source.
•Unscrew the plug at the top of the filling tube (shown below).

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Figure 1: Water Filling Tube
•Using the supplied syringe, fill the water reservoir to the maximum water level indicated on the
chamber. Replace the filling tube plug.
Desiccant Filling and Replacement
The desiccant is the drying agent of the H300P chamber. The recommended desiccant is the Regular
Drierite 8 mesh desiccant.
The H300P comes preloaded with fresh desiccant. When the desiccant is fresh, it is blue. As the desiccant
gets used up, it turns red. When the desiccant is all red, it should be replaced.
Always use gloves and a mask when handling the desiccant. Avoid inhaling the desiccant dust as it may
irritate the lungs.
To replace the desiccant follow the procedure below.
•Turn off and unplug the H300P chamber.
•Remove the desiccant reservoir by gently spreading the holder clamps and pulling the reservoir
away from the back of the chamber. As you pull the two connector hoses will extend.
•Pull until the hoses will not extend farther. Do not force the hoses to extend. See Figure 2 below.

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Figure 2: Desiccant Reservoir Pulled From H300P
•Unscrew the reservoir plug and remove the spring, dust filter and metal mesh.
•Remove the used desiccant. The used desiccant can be regenerated by heating it above 395°F
(200°C) for one to two hours.
•Fill the reservoir with a fresh desiccant. Do not overfill or underfill.
•Replace the dust filter, followed by the metal mesh, followed by the spring.
•Screw the reservoir plug until tight. The spring should compress when the plug is tight.
•If the spring does not compress, there is not enough desiccant in the reservoir.
•If the spring compresses too much, so that it is excessively difficult to screw the reservoir plug, there
is too much desiccant in the reservoir.

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Principles of Operation
The H300P temperature humidity chamber controls the humidity by circulating the air inside the chamber
through the desiccant to decrease humidity, or through a water vapor chamber to increase humidity.
Air entering the chamber from the desiccant is very close to 0%RH. Air entering the chamber from the vapor
chamber is close to 100%RH. A fan inside the chamber mixes the dry or humid air to maintain uniform
humidity level throughout the inside of the chamber.
The humidity is controlled by regulating the amount of dry or humid air that enters the chamber.
The temperature inside the chamber is controlled using a solid state Peltier element. The chamber does not
contain any refrigerants.
Chamber Control and Operation
Summary of Operations
1. Turn the CONT switch OFF.
2. Turn the POWER switch ON.
3. Enter the desired setpoints (or profile) on the PM PLUS Controller, using the numeric slider or the +
or –keys.
4. Load your test sample in the chamber and close the chamber door.
5. Turn the CONT switch to ON.
Controls
The H300P chamber has three switch button controls:
POWER: Turns the chamber power On and Off.
CONT: Turn the chamber control On and Off.
LIGHT: Turns the LED lights inside the chamber On and Off.
The temperature and humidity set points are adjusted by setting the appropriate controller. Humidity is on
the top, Temperature is on the bottom.
The CONT switch allows you to turn off both temperature and humidity control to the chamber without
changing the target set point of either controller. Both controllers and the chamber will still be On, but no
power will be supplied to the temperature and humidity control units inside the chamber. This switch is
useful when you need to open the chamber door.

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Figure 3: Chamber Controls
Chamber Door
The chamber door needs to be sealed for the chamber to maintain proper humidity and temperature.
Tighten the three door nuts until the white rubber gaskets start to compress. Do not overtighten the nuts.
It is unnecessary and will decrease the life of the door rubber gaskets.
Humidity Control
The water in the water reservoir inside the H300P is heated by an internal heater. Depending on the
amount of water in the reservoir, it may take as much as 30 minutes for the water to reach its target
temperature. The H300P chamber can be used before the temperature reaches its target in most cases.
However, when trying to achieve high humidity (above 75%RH) at high temperatures (above 90°F, 32°C), you
may have to wait for the water in the reservoir to heat up.
Note that the water in the reservoir will warm up whenever the H300P is ON, even if the CONT switch is
turned to OFF.
Controlling High Humidity
When the chamber is controlling humidity above 80%RH, there is a limit on how high the humidity inside the
chamber can climb. This limit mostly depends on the temperature inside the chamber. Approximate
maximum humidity limits vs. chamber temperature are shown in Figure 4.

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Chamber
Temperature °F
Max Humidity
70°F 100°F
45°F 120°F
95%RH
80%RH
60%RH
Figure 4: Maximum Chamber Humidity vs. Temperature
When operating the chamber below 70°F, small amount of condensation inside the chamber is possible
when the humidity inside the chamber is above 80%RH. As the chamber tries to increase humidity, it pumps
warm vapor into the chamber. At the same time, it tries to control the temperature, causing the
temperature control fins to cool and fall below the dew point. This causes condensation on the fins. Small
amount of condensation will not harm the chamber, but will prevent humidity increasing above the limits
shown in Figure 4. Any condensation can be wiped off with a paper towel.
Make sure not to touch the sensor assembly at the top of the chamber when wiping off condensation.
Watlow PM PLUS Controllers
The H300P unit uses the Watlow PM PLUS controllers. The controller User’s Manual has been provided with
the H300P chamber.In general you should not need to reference this manual, unless you are setting up a
profile.
The summary of the PM PLUS front panel controls are shown below

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Changing Temperature Units
To change the temperature controller units follow the procedure below:
•Press the Forward Arrow key once. The PM Plus controller will display a menu.
•Press the –key until Setup is highlighted.
•Press the Forward Arrow key once. The PM Plus controller will show the Setup Menu.
•Press the Forward Arrow key until Global is highlighted.
•Press the Forward Arrow key once. Display Units should be highlighted.
•Press the Forward Arrow key once.
•Press the +or –keys to select the desired units (F or C).
•Press the Home key when done.
Changing the Set Point
To change the target set point, use the numeric slider or the +or –keys until the desired set point is
reached. The controller has a 3 second delay before a new set point becomes active.
Turning Temperature or Humidity Control OFF
To turn control off to both temperature and humidity, use the CONT button on the chamber Controls. You
can also turn off control to either temperature or humidity individually using the appropriate PM PLUS
controller, as follows:
•Press the Forward Arrow key once. Control Mode 1 should be highlighted.
•Press the Forward Arrow key once.
•Press the +or –keys until Off is highlighted.

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•Press the Home key when done.
To turn the control back On follow these steps:
•Press the Forward Arrow key once. Control Mode 1 should be highlighted.
•Press the Forward Arrow key once.
•Press the +or –key until Auto is highlighted.
•Press the Home key when done.
Setting Up a Profile (PM6R Models Only)
For instructions on how to set a profile, see the “PM Plus User’s Manual”, Chapter 6: Profiles. For easy
profile setup download the Watlow EZ-LINK™ App to your phone or tablet. The App communicates with the
controllers using Bluetooth®.
Setup Page Parameters
The setup page parameters below have been programmed into the temperature and humidity controllers at
the factory. These parameters are for reference only and should not be modified.
Improper modifications to these setup values can result in erratic performance and unreliable operation. Do
not attempt to modify the setup values, unless you thoroughly understand what you are doing.
These parameters were saved at the factory under User Settings 1. If these parameters are modified, they
can be restored to factory defaults. Please see the Restoring Factory Default Parameters section in this
manual on how to do this.
Analog Input Menu
Parameter
Temperature
Humidity
Sensor Type
RTD 100 Ohm
Milliamps
RTD Leads
3
Units
Relative Humidity
Scale Low
4.00
Scale High
20.00
Range Low
0.0
Range High
100.0
Process Error Enable
Off
Filter
0.5
0.5
Input Error Latching
Off
Off
Display Precision
Tenths
Tenths
Calibration Offset
0.0
0.0

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Linearization Menu
For the relative humidity controller there are no changes to controller default parameters. For the
temperature controller, each H300P chamber is supplied with its own set of Linearization Menu
settings. These settings are included in a document on the flash drive that comes with each
chamber.
Process Value Menu
No changes to controller default parameters.
Control Loop Menu
Most of the parameters in the Control Loop Menu are specific to each H300P chamber. Each H300P
chamber is supplied with its own set Control Loop Menu settings. These settings are included in a
document on the flash drive that comes with each chamber.
Output Menu
Output 1
Parameter
Temperature
Humidity
Output Function
Heat
Heat
Time Base Type
Fixed Time Base
Fixed Time Base
Fixed Time Base
1.0
3.0
Low Power Scale
0
0
High Power Scale
100
50
Output 2
Parameter
Temperature
Humidity
Output Function
Cool
Cool
Time Base Type
Fixed Time Base
Fixed Time Base
Fixed Time Base
1.0
3.0
Low Power Scale
0
0
High Power Scale
100
100
Alarm Menu
No changes to controller default parameters.
Function Key Menu
No changes to controller default parameters.

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Global Menu
Parameter
Temperature
Humidity
Display Units
C or F
Language
English
English
AC Line Frequency
60Hz
60Hz
Comms LED Action
Both
Both
Zone
Off
Off
Channel
On
On
Display Pairs
1
1
Display Time
0
0
Bluetooth
On
On
Home Screen
0
0
Communications Menu
Parameter
Temperature
Humidity
Standard Bus Address
2
1
Data Map
1
1
Non Volatile Save
Yes
Yes
Restoring Factory Default Parameters
Both the temperature and humidity controllers were set up at the factory for optimum operation for each
H300 chamber. These default parameters were stored in User Settings 1. To restore factory default
parameters for either controller follow the procedure below:
•Press the Forward Arrow key once. The PM Plus controller will display a menu.
•Press the –key until Setup is highlighted.
•Press the Forward Arrow key once. The PM Plus controller will show the Setup Menu.
•Press the Forward Arrow key until Global is highlighted.
•Press the Forward Arrow once.
•Press the – key until Restore Setting From is highlighted.
•Press the Forward Arrow key once.
•Press the – key until User Set 1 is highlighted.
•Press the Forward Arrow key to restore factory defaults.

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Troubleshooting
Symptom
Causes
Chamber does not control
temperature and humidity
The CONT switch is in the OFF position.
Humidity does not increases
fast enough, or does not
increase above 75%RH
1. The water in the water reservoir is too low
2. The water in the water reservoir is too cold. Allow about 30 minutes
for the water to warm up to normal operating temperature.
3. The chamber door is not properly sealed
4. The water in the reservoir is not distilled.
Humidity does not decrease
fast enough
1. Desiccant is used up (red). Make sure some of the desiccant in the
desiccant reservoir is blue.
2. Condensation in the chamber.
3. The chamber door is not properly sealed.

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Specifications
Controlled Temperature Range 45°F to 140°F (7°C to 60°C) @ 77°F (25°C) ambient temperature
Minimum Controlled Humidity 5% over the supported temperature range
Maximum Controlled Humidity 95% between 70°F and 100°F (21°C and 38°C). See Figure 4 for full
limits.
Humidity Accuracy +/- 1.2%RH (10%RH to 90%RH)*@ 77°F (25°C), +/-2.5%RH across
the operating temperature range.
Humidity Response Time 0.5%RH per second typical
Humidity Stability +/- 0.1%RH
Chamber Humidity Uniformity +/- 0.2%RH
Temperature Accuracy +/-1°F (0.5°C)
Temperature Response Time 6°F (3°C) per minute typical
Temperature Stability +- 0.1°F (0.1°C), depending on controller unit selection
Chamber Temperature Uniformity +/- 0.2°F (0.1°C)
Input Power 120V A/C, 50/60Hz, 1A. 120 Watts.
Outside Dimensions 18”D x 15”W x 15”H
46cm D x 38cm W x 38cm H
Inside Workspace Dimensions 6” Diameter by 10” Deep Cylinder: 283 cu in (0.16 cu ft)
15.25 cm Diameter by 25.4cm Deep Cylinder: 4.6 L
Port Openings 3 openings, 1.25” (3.1 cm) diameter each
Weight 30 lb (13.6 Kg), fully loaded with water and desiccant
Desiccant Capacity 1 lb (454 g)
Water Capacity 10 oz (290 ml)
*Calibration certificate against an NIST certified instrument is provided.

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Folyon Technologies Inc. Limited Warranty
Folyon Technologies Inc. (Folyon) warrants the H300P Chambers (Equipment) manufactured by Folyon and supplied
under this contract to be free from defects in materials and workmanship under normal use and proper maintenance.
Folyon will repair or replace any defective part, not excluded in this limited warranty, for a period of ONE YEAR from
the date of invoice. Folyon reserves the right to require the Equipment be returned, freight prepaid, to Folyon’s factory
or to inspect any defective part at the Purchaser’s site. Folyon shall have sole discretion to determine whether any part
is defective and whether any defective part will be repaired or replaced. This limited warranty shall extend to any
standard chamber accessory and component part which is normally sold by Folyon. Non-standard accessories and
component parts specified by the Purchaser shall be warranted only to the extent of the original manufacturer’s
warranty, if any exists. Purchaser shall notify Folyon in writing of any alleged defect within 10 days after its discovery
within the warranty period.
Following the ONE YEAR parts and labor warranty, the Purchaser will be responsible for the cost of all replacement
parts. Folyon will provide a lifetime labor warranty for the original purchaser of the Equipment.
The following parts are excluded from this limited warranty and are sold as-is or are considered expendable: paint and
cosmetic surface finishes and treatments, port plugs, desiccant.
This limited warranty shall extend in full to Equipment installed within continental United States and Canada. For all
other locations, Purchaser is responsible for all shipping costs associated with providing warranty service.
This limited warranty does not cover: (1) Defects or damages arising as the result of shipment by common carriers or
private transportation, unless Folyon undertakes shipment and transportation of the Equipment to Purchaser’s site or
contractually assumes the risk of damage to the Equipment in shipment; (2) Defects or damages arising out of, or as
the result, of mishandling, modification, or improper start up, installation or maintenance of the Equipment (including
start up, installation or maintenance not in accordance with Folyon’s written procedures); (3) Defects or damages
resulting from, or arising out of, abuse, misuse, neglect, intentional damage, accident, fire, flood, earthquake, or any
other act of God.
This warranty as to Equipment is LIMITED to repair or replacement of parts or Equipment in the determination of
Folyon Technologies Inc. THE FORGOING LIMITED WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES INCLUDING THE
IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE AND MERCHANTABILITY. Folyon Technologies Inc.
DISCLAIMS ANY LIABILITY FOR ANY DAMAGES RESULTING FROM DELAY OR LOSS OF USE IN SERVICE OR REPAIR, OR FOR
INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
OF THE EQUIPMENT, EXCEPT AS STATED IN THIS PARAGRAPH.
This limited warranty cannot be modified in any way except in writing by both Folyon and Purchaser. Invalidation of
any one or more of the provisions of this limited warranty shall in no way affect any of the other provisions hereof,
which remain in full force and effect.
This limited warranty shall be extended only to the first Purchaser of this Equipment and is not transferable.