TestEquity 101H Operation manual

Model 101H
Temperature/Humidity Chamber
Operation and Service Manual
TestEquity LLC
6100 Condor Drive
Moorpark, CA 93021
Support: 877-512-3457 Toll Free
805-480-0636
Corporate: 800-732-3457
805-498-9933
http://www.testequity.com
Copyright © 2017 TestEquity LLC Rev. 1.6 – November 8, 2017
Portions of this manual are used with permission from Watlow Electric Manufacturing Company, 2014-17

Table of Contents
Chapter 1 – Safety Instructions................................................................................................... 7
Introduction ______________________________________________________________________________7
Installation Safety Notices___________________________________________________________________7
Operation Safety Notices____________________________________________________________________8
Chapter 2 – Installation................................................................................................................ 9
Unpacking________________________________________________________________________________9
Preparation For Use _______________________________________________________________________9
Installation Location _______________________________________________________________________9
Humidity Water System ___________________________________________________________________10
Water Fill (when no plumbing is used)..............................................................................................................10
Plumbed Water Supply (optional installation method) ......................................................................................10
Maintenance Drain.............................................................................................................................................10
Water Recirculation System Filter Cartridge .....................................................................................................11
Chapter 3 – Operation................................................................................................................ 13
Introduction _____________________________________________________________________________13
Summary of Chamber Operation____________________________________________________________13
Front Panel Switch and Soft Buttons _________________________________________________________13
POWER Switch..................................................................................................................................................13
Power Button .....................................................................................................................................................13
Humidity Button ................................................................................................................................................13
Purge Button ......................................................................................................................................................13
Light Switch.......................................................................................................................................................13
Loading the Chamber _____________________________________________________________________14
Port Plugs ...........................................................................................................................................................14
Performance Considerations ..............................................................................................................................15
Avoiding Moisture (non-humidity mode) ..........................................................................................................15
Internal Test Fixtures .........................................................................................................................................15
Humidity Operation ______________________________________________________________________16
Temperature Range for Controlled Humidity ....................................................................................................16
Purge (optional) __________________________________________________________________________17
GN2 (Gaseous Nitrogen) Installation (Option TE-1013)...................................................................................17
Dry Air Installation (Option TE-1014 or TE-0017)...........................................................................................17
Purge Operation .................................................................................................................................................18
Adjusting the Purge Flow...................................................................................................................................18
Relief Vent .........................................................................................................................................................18
Chapter 4 – F4T Temperature/Humidity Controller .............................................................. 19
F4T Menus ______________________________________________________________________________19
Understanding F4T Menus.................................................................................................................................19
Navigating and Understanding the User Interface ______________________________________________20
Home Screen Parameters ...................................................................................................................................21
Front Panel Navigational Buttons ......................................................................................................................21
Main Menu.........................................................................................................................................................21
Chamber Functions (Output Widget) .................................................................................................................22
Power Button .....................................................................................................................................................22
Humidity Button ................................................................................................................................................22
Purge Button ......................................................................................................................................................22
Static (Manual) Set Point ...................................................................................................................................23
Navigating the Closed-Loop Set Point Screen...................................................................................................23
Ramp to Set Point ________________________________________________________________________24
Temperature Limit Alarm _________________________________________________________________25
How to Set the High and Low Temperature Safety Limits ................................................................................25
Resetting an Out of Limit Condition..................................................................................................................26
Low Water Alarm ________________________________________________________________________26
Low Water Alarm Notification ..........................................................................................................................26
Resetting a Low Water Alarm Condition...........................................................................................................26

Table of Contents
Profile Mode _____________________________________________________________________________27
Profile Actions ...................................................................................................................................................27
Profile Parameters ..............................................................................................................................................28
Step Parameters..................................................................................................................................................28
Sample Ramp and Soak Profile..........................................................................................................................31
Data Logging ____________________________________________________________________________33
Overview............................................................................................................................................................33
Data Logging Menu ...........................................................................................................................................33
How to Enable Data Logging.............................................................................................................................34
Transferring Data Log Files ...............................................................................................................................35
Trend Charts ____________________________________________________________________________36
Exporting/Importing Profiles and Configuration via USB _______________________________________37
Transferring Profile Files ...................................................................................................................................37
Transferring Configuration Files........................................................................................................................37
Personalizing the Home Screen _____________________________________________________________38
Changing Loop Operational Parameters______________________________________________________39
Operations Page__________________________________________________________________________40
Screen Snapshot Utility ____________________________________________________________________40
Dew Point Utility _________________________________________________________________________41
Chapter 5 – Composer Software ............................................................................................... 43
Installation ______________________________________________________________________________43
Overview............................................................................................................................................................43
Downloading the Software and System Requirements ......................................................................................43
Installing the Software .......................................................................................................................................43
Network Configuration ......................................................................................................................................43
Composer Welcome Screen Orientation ______________________________________________________44
Using Composer Software__________________________________________________________________44
System Overview Screen ___________________________________________________________________45
Dashboard ..........................................................................................................................................................45
System................................................................................................................................................................45
Device Menus ....................................................................................................................................................45
Security ..............................................................................................................................................................45
Save System Image ............................................................................................................................................47
Import System Image .........................................................................................................................................48
Global Settings...................................................................................................................................................49
Device Details ____________________________________________________________________________49
Device Name......................................................................................................................................................49
Restore Settings From........................................................................................................................................49
Pluggable Flex Modules____________________________________________________________________49
Creating and Editing Profiles in Composer Software ___________________________________________50
Profile View - Screen Orientation......................................................................................................................51
Profile Parameters ..............................................................................................................................................52
Step Parameters..................................................................................................................................................52
Opening the Profile View...................................................................................................................................54
Creating Profiles ................................................................................................................................................54
Saving a Profile to a Storage Device..................................................................................................................54
Loading a Profile................................................................................................................................................54
Duplicating a Profile ..........................................................................................................................................55
Deleting Profiles ................................................................................................................................................55
Opening the Step Editor.....................................................................................................................................55
Adding Steps......................................................................................................................................................55
Inserting Steps....................................................................................................................................................55
Deleting Steps ....................................................................................................................................................56
Password Protect a Profile .................................................................................................................................56
Changing or Removing a Password from a Protected Profile ............................................................................56

Table of Contents
Chapter 6 – Communications .................................................................................................... 57
Ethernet Parameters ______________________________________________________________________57
Changing Ethernet Parameters ...........................................................................................................................57
Ethernet Parameters and Settings.......................................................................................................................57
RS-232 Parameters _______________________________________________________________________58
Changing RS-232 Parameters ............................................................................................................................58
RS-232 Parameters and Settings ........................................................................................................................58
Modbus _________________________________________________________________________________59
Introduction to the Modbus Protocol .................................................................................................................59
F4T and F4 Modbus Mapping............................................................................................................................59
Common Modbus Registers...............................................................................................................................60
F4 Compatibility Mode (Data Map 2)................................................................................................................61
SCPI Programming Mode__________________________________________________________________62
GPIB and Ethernet Modbus Interface Converters (optional) _____________________________________63
Serial Modbus-to-GPIB Converter (Option 1052).............................................................................................63
Serial Modbus-to-Ethernet Converter (Option 1056).........................................................................................63
Programming Syntax for the F4T Controller .....................................................................................................64
Chapter 7 – Frequently Asked Questions................................................................................. 67
Chapter 8 – Specifications.......................................................................................................... 69
Chapter 9 – Maintenance ........................................................................................................... 71
Preventive Maintenance Schedule ___________________________________________________________71
How to clean the chamber interior and exterior .................................................................................................72
How to drain the reservoir..................................................................................................................................72
How to inspect/change the water recirculation system filter cartridge...............................................................73
How to listen for abnormal noise or vibration ...................................................................................................73
How to inspect the door seal ..............................................................................................................................73
How to clean the condenser ...............................................................................................................................74
How to inspect the electrical/refrigeration compartment ...................................................................................74
How to Verify the Performance (Non-controlled humidity mode) ....................................................................75
How to Verify the Performance (Controlled humidity mode) ...........................................................................76
How to Verify the Temperature Calibration ......................................................................................................77
How to Verify the Humidity Calibration ...........................................................................................................78
Humidity Sensor Calibration and Maintenance .................................................................................................78
F4T Controller Calibration_________________________________________________________________79
Equipment Required ..........................................................................................................................................79
Input Setup and Calibration ...............................................................................................................................79
Theory of Operation ______________________________________________________________________80
Overview............................................................................................................................................................81
Air Heating System ............................................................................................................................................81
Humidity System................................................................................................................................................81
Refrigeration System..........................................................................................................................................81
Troubleshooting __________________________________________________________________________83
Refrigeration System Charging Instructions __________________________________________________84
Refrigerant Charge .............................................................................................................................................84
Replacement Parts ________________________________________________________________________85
Major Electrical Parts_____________________________________________________________________85
Major Refrigeration Parts _________________________________________________________________85
General Parts ____________________________________________________________________________85
Chapter 10 – Warranty .............................................................................................................. 87
Chapter 11 – Drawings............................................................................................................... 89

Chapter 1 – Safety
TestEquity 101H Temperature/Humidity Chamber Page 7
Chapter 1 – Safety Instructions
Introduction
Follow all CAUTION notices to prevent damage to the chamber or your test sample. Failure to
follow all CAUTION notices may void your warranty. CAUTION may also indicate a
potentially hazardous situation which, if not avoided, may result in minor or moderate personal
injury.
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 2precedes an electric shock hazard CAUTION or WARNING
statement.
Installation Safety Notices
2WARNING: The power cord is equipped with a NEMA 5-15P grounded/polarized plug. To
prevent a shock hazard, DO NOT defeat the ground or polarization feature.
This device MUST be plugged into a properly grounded and polarized outlet.
!CAUTION: The minimum clearance you should allow for proper ventilation must be at
least 12" from the rear of the chamber.
!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.

Chapter 1 – Safety
Page 8 TestEquity 101H Temperature/Humidity Chamber
Operation Safety Notices
!CAUTION: The F4T Controller has been properly configured by TestEquity 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. Setup examples in the
Watlow F4T Manuals are NOT applicable to this chamber. Do not attempt to
modify the setup values, unless you thoroughly understand what you are
doing. If there is any doubt, please call TestEquity before proceeding.
!CAUTION: Configuration files are unique to each model chamber and must NEVER be
transferred to a different model chamber.
!CAUTION: NEVER select “Factory” in the “Restore Settings From” prompt in the Device
Details menu in Composer Software. This will erase all controller
configuration settings. The chamber will not work if you do this.
!CAUTION: Always verify that the F4T Limit Alarm settings for high and low limits are
set to temperatures that are appropriate for your test sample.
!WARNING: Do NOT put items in the chamber that could burn or explode at high
temperatures. This chamber uses open wire heating elements which generate
surface temperatures over 1000ºF. This is NOT an explosion-proof chamber.
!WARNING: Do NOT put items in the chamber that can emit corrosive vapors or
substances.
!WARNING: This chamber is NOT a curing oven. There are NO provisions for venting
fumes or bringing in fresh air.
!WARNING: The chamber door must remain closed while the chamber is operating. If you
need to open the door while the chamber is operating, wear safety goggles to
prevent the high velocity airflow from blowing particles or objects into your
eyes.
!WARNING: This chamber operates at extreme temperatures. Avoid contact with air,
objects, and surfaces that are hot or cold to prevent severe burns or frostbite.
Protective gloves are recommended.
!CAUTION: If your test sample is energized, it may be capable of raising the workspace
temperature beyond safe limits. This could occur if your test sample exceeds
the live load rating of the chamber or if the chamber’s refrigeration system
fails. You are responsible for providing thermal protection devices to your test
sample.
!CAUTION: To prevent damage to your test sample and the chamber’s compressor, do not
exceed the live load rating of the chamber

Chapter 2 – Installation
TestEquity 101H Temperature/Humidity Chamber Page 9
Chapter 2 – Installation
Unpacking
Inspect the shipping container for any signs of visible damage. Notify the carrier and TestEquity
immediately if there are signs of shipping damage.
1. Cut the bands that hold the packaging together.
2. Remove the top cover and top foam inserts.
3. Remove the outer box.
4. Carefully lift the chamber off the pallet. This should be done with at least four people.
Preparation For Use
1. Inspect the chamber for signs of shipping damage.
2. Read this entire manual.
3. Select a suitable location to install the chamber.
4. Install the Water Recirculation System Filter Cartridge if it is not already installed.
5. Fill the water reservoir (located on the top of the chamber) with 1-gallon minimum to 2
gallons maximum of supermarket-grade distilled water or deionized water. Do not use
unfiltered tap water! Do not use lab-grade double-distilled water!
6. Attach the power cord to the receptacle on the chamber. Plug the chamber into the power
source as designated on the model label.
7. Perform following the procedure “How to verify the chamber performance” in the
Maintenance chapter of this manual to make sure that no damage has occurred in shipment.
Installation Location
The chamber will produce a moderate amount of heat during normal operation. Locate the
chamber in an area with adequate ventilation to prevent excessive heat build-up. The chamber
must be on a solid and level surface that is rated to hold at least 200 pounds.
2WARNING: The power cord is equipped with a grounded/polarized plug. To prevent a
shock hazard, DO NOT defeat the ground or polarization feature. This device
MUST be plugged into a properly grounded and polarized outlet.
!CAUTION: The minimum clearance you should allow for proper ventilation must be at
least 12" from the rear of the chamber.
!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.

Chapter 2 – Installation
Page 10 TestEquity 101H Temperature/Humidity Chamber
Humidity Water System
This chamber has a built-in close-loop water recirculation system to provide clean water to the
humidity system. If you choose to operate the chamber in a stand-alone mode without any
plumbing, the internal reservoir must be filled initially with supermarket-grade distilled water or
deionized water. Condensate is pumped through a deionizer filter and returned to the reservoir.
The chamber does not need to be plumbed to a drain.
If you plumb the chamber to a source of deionized water, a float valve will always maintain 1.5
gallons of water in the internal reservoir. The water recirculation system remains operational.
Condensate is pumped through a deionizer filter and returned to the reservoir. The chamber does
not need to be plumbed to a drain.
Water Fill (when no plumbing is used)
Unscrew the black plastic cover on the top of the chamber and fill the water reservoir with 1 to 2
gallons of supermarket-grade distilled water or deionized water. Do not use unfiltered tap
water! Do not use lab-grade double-distilled water!
Plumbed Water Supply (optional installation method)
Attach your water supply hose to the 1/4" NPT Water Inlet fitting on the back of the chamber.
The water supply must be regulated to 50 psi or less and contain a shut-off valve. The water
must be filtered through a customer-supplied Deionizer filter to remove the mineral
content. The water filter on the chamber does not filter the water from a plumbed supply,
it only filters the condensate back to the internal reservoir. Do not use unfiltered tap water!
Do not use lab-grade double-distilled water!
Maintenance Drain
A 1/2" NPT Maintenance Drain fitting is located on the back of the chamber. It is only used to
drain the internal water reservoir for maintenance purposes. Water does not come out of this
drain during normal chamber operation, even with a plumbed water supply. See “How to drain
the reservoir” in the Maintenance section of this manual for more details.

Chapter 2 – Installation
TestEquity 101H Temperature/Humidity Chamber Page 11
Water Recirculation System Filter Cartridge
The Deionizer filter must be installed before using the humidity system. This does NOT filter
incoming water from a plumbed supply. This will only filter water from the condensate
pump before it returns to the reservoir. The Deionizer filter cartridge must be replaced when
it is used up. The color of the top half of the cartridge changes gradually from white to brown
through continued use. Replacement cartridges are available from TestEquity (our part number
383911).
To replace the cartridge, use a screwdriver to loosen the clamps from the
bottom and top of the filter and remove the tubing from the barbed fitting
on the filter. Be prepared to catch a small amount of water from the tubes
and bottom of the filter with a rag or paper towel. Lift the filter up to
disengaged it from the bottom flange and then pull the bottom of the
filter towards you. Then, pull the filter out of the top flange. Perform the
installation in the reverse order.
Top of Filter Bottom of Filter
Clamp
Clamp

Chapter 3 – Operation
TestEquity 101H Temperature/Humidity Chamber Page 13
Chapter 3 – Operation
Introduction
The Front Panel Switch controls power to the F4T Temperature/Humidity Controller and all
chamber functions. The “soft” Power button F4T Controller controls all chamber functions.
Summary of Chamber Operation
1. Turn the POWER Switch ON.
2. Enter the desired temperature (and humidity if you are running a controlled humidity
condition) set point on the F4T Controller.
3. Load your test sample in the chamber.
4. Press the Power button on the F4T controller to turn the chamber ON.
5. If you are running a controlled humidity condition between +10°C and +85°C, press the
Humidity button on the F4T controller to turn the humidity system ON. Make sure there is an
adequate amount of water in the reservoir before operating the humidity system.
Front Panel Switch and Soft Buttons
POWER Switch
The POWER Switch controls power to the entire chamber.
Power Button
The Power button on the F4T Controller turns the chamber ON/OFF. There will be a green check
mark on the Power button when it is ON.
Humidity Button
The Humidity button on the F4T Controller turns the humidity system ON/OFF. There will be a
green check mark on the Humidity button when it is ON.
Purge Button
The Purge button turns the optional purge system ON/OFF. Note: Your chamber will have a
Purge button even if the option is not installed. There will be a green check mark on the Purge
button when it is ON.
Light Switch
The Light switch is located on the left side of the light bar. The light bar contains an LED light
array. These lights are located on the outside of the door so they are not directly exposed to the
internal chamber temperature or humidity extremes. While LEDs have very long life, we
recommend you only turn the light ON when needed and then turn it OFF when operating the
chamber at temperatures over 50°C (122°F). This is because the exterior surface of the door
tends to get very warm which elevates the temperature of the LED light bar.

Chapter 3 – Operation
Page 14 TestEquity 101H Temperature/Humidity Chamber
Loading the Chamber
!WARNING: Do NOT put items in the chamber that could burn or explode at high
temperatures. This chamber uses open wire heating elements that generate
surface temperatures over 1000ºF. This is NOT an explosion-proof chamber.
!WARNING: Do NOT put items in the chamber that can emit corrosive vapors or
substances.
!WARNING: This chamber is NOT a curing oven. There are NO provisions for venting
fumes or bringing in fresh air.
!WARNING: The chamber door must remain closed while the chamber is operating. If you
need to open the door while the chamber is operating, wear safety goggles to
prevent the high velocity airflow from blowing particles or objects into your
eyes.
!WARNING: This chamber operates at extreme temperatures. Avoid contact with air,
objects, and surfaces that are hot or cold to prevent severe burns or frostbite.
Protective gloves are recommended.
!CAUTION: If your test sample is energized, it may be capable of raising the workspace
temperature beyond safe limits. This could occur if your test sample exceeds
the live load rating of the chamber or if the chamber’s refrigeration system
fails.
!CAUTION: To prevent damage to your test sample and the chamber’s compressor, do not
exceed the live load rating of the chamber.
Live Load Capacity for Model 101H (uncontrolled humidity mode only)
Temp +23°C 0°C –5°C –10°C –15°C
Watts 300 W 170 W 135W 85 W 65 W
Port Plugs
Foam port plugs are provided with a gray silicone surface on one side. The port plug must be
inserted with the gray silicone surface facing the inside of the chamber. Port plugs should be
considered expendable and be replaced when they no longer provide a good seal.

Chapter 3 – Operation
TestEquity 101H Temperature/Humidity Chamber Page 15
Performance Considerations
The performance of all chambers is significantly affected by the characteristics of your test
sample. Factors include size, weight, material, shape, and power dissipation if energized.
The test sample should be placed in the chamber in a manner that allows for air circulation. The
air plenum is located on the back wall of the chamber, where air is sucked in from the left side
and exits from the right side. You should not place the test sample directly on the chamber floor.
It should be placed on the shelf. Multiple test samples should be distributed throughout the
chamber to ensure even airflow and minimize temperature gradients. If necessary, an additional
shelf should be used to evenly distribute the load. Verify that the temperature gradients are
within acceptable limits, by measuring the chamber temperature at strategic points using a
multipoint thermocouple meter or data logger.
You may find that the temperature throughout the chamber is even, but always different from
what the temperature controller indicates. The correct way to adjust what the temperature
controller “displays” compared to what is measured at some point other than the controller’s
sensor is with the “Calibration Offset” parameter.
Avoiding Moisture (non-humidity mode)
Any time the ambient air is subjected to temperatures below the dew point, moisture will
condense out of the air. The effect is ice or frost during low temperature operation. When the
chamber is heated above 0°C, the ice or frost will turn into water.
To avoid moisture condensation, make sure the port plugs are inserted with the gray silicone
surfaces facing the inside and outside of the chamber at all times. Any air gaps between the wires
going through the ports will create a path for moisture migration and thermal losses. Also, avoid
opening the chamber door while the chamber is operating at temperatures below room ambient.
When a low temperature test is completed, warm the chamber to at least room ambient before
opening the chamber door and before removing your test sample.
You CANNOT use the humidity system to control moisture at low temperatures. The humidity
system is disabled below +7°C. However, if you have a source of GN2(gaseous nitrogen) or Dry
Air, you can use the Purge system to eliminate moisture condensation at low temperatures.
Internal Test Fixtures
Some applications require internal fixtures to support test samples and provide a convenient
method of connecting wires and sensors. Fixtures must be designed to minimize their impact on
chamber functionality and performance.
Fixtures should be designed for easy removal to permit maintenance and cleaning of the
chamber. The chamber liner should never be drilled or screwed into. This will compromise the
integrity of the liner and permit moisture migration due to condensation into the insulation,
which will eventually impact performance and lead to premature rusting of the outer cabinet.
Fixtures should be constructed of stainless steel. This also applies to all screws and fasteners. All
welds should be passivated. To prevent rust and corrosion, never use iron or mild steel even if it
is painted or plated. Aluminum may be used. However, since the specific heat of aluminum is
double that of steel, it represents a greater load and will have more impact on the chamber
performance.

Chapter 3 – Operation
Page 16 TestEquity 101H Temperature/Humidity Chamber
Make sure that all connectors, wiring, pc boards, and auxiliary components can withstand the
temperature extremes that they will be subjected to. In some cases, these components may not be
able to last after repeated tests and should be considered expendable.
Humidity Operation
Humidity Mode Enable
The Humidity mode is enabled through the Humidity button on the F4T Controller. This mode
should only be ON if you are performing a controlled humidity test within the temperature
humidity range of the chamber as shown in the chart below.
Standard Humidity Range
This chamber is capable of controlling humidity from 10% RH to 95% RH over the temperature
range of +10°C to +85°C. The lowest possible humidity in the Standard Range is limited to a
6°C dew point.
Examples of 6°C Dew Point Limit in the Standard Humidity Range
10°C 76%
20°C 40%
45°C 10%
Below is a chart that shows the achievable range of humidity as compared to temperature. For
extended low humidity range below 6°C a dew point condition, see “Purge Option” which
follows.
NOTE: Achieving low humidity levels require you to start with a clean, dry chamber.
Achievable Range of Temperature/Humidity Conditions
Temperature Range for Controlled Humidity
If the chamber is outside the temperature range or +7°C and +90°C, the humidity system will be
disabled and chamber will operate as though the F4T Humidity button was OFF, even if
Humidity button is ON.

Chapter 3 – Operation
TestEquity 101H Temperature/Humidity Chamber Page 17
Purge (optional)
Optional GN2(gaseous nitrogen) Purge or optional Dry Air Purge can be used to reduce to
possibility of condensation in the chamber and on your test sample, or to achieve humidity
control below a 6°C dew-point condition.
!CAUTION: Nitrogen cannot be detected by human senses. Nitrogen is non-toxic.
However, if adequate ventilation is not provided, nitrogen will displace air.
This can cause dizziness, unconsciousness or death without warning. The
chamber must be located in a well-ventilated area. Do not open the chamber
door and put your head in it with the GN2flowing.
GN2 (Gaseous Nitrogen) Installation (Option TE-1013)
Connect a supply of GN2 with a maximum pressure of 100 psig to the 1/4-inch FPT fitting which
is labeled PURGE INLET on the rear panel.
Dry Air Installation (Option TE-1014 or TE-0017)
Dry Air requires Option TE-1013 as a prerequisite. TE-1014 consists of the Heatless Desiccant
Air Drier mounted on the 101H-F caster base. TE-0017 has the air drier mounted on its own
caster base for use with the 101H-B. Connect the hose from the Air Drier to the PURGE INLET
fitting on the rear panel. Connect the power plug from Air Direr to DRY AIR POWER
receptacle on the rear panel. Twist the power plug clockwise to lock it. Connect a supply of
compressed air to the 3/8-inch FPT shutoff valve on the Air Drier system. This system requires a
5 cfm supply air flow rate at 100 psig (175 psig max).
Dry Air Purge System Installation (example shows Option TE-1014 on a 101H-F)
Compressed Air Inlet
to Dry Air System.
Shutoff v
alve on the Dry Air
System is
shown in the off
position.
Valve must be in
the on position to operate.
From Air Drier
Connect the hose from the
Air Drier to the PURGE
INLET fitting. Connect the
power plug from Air Direr
to
the DRY AIR POWER
receptacle. Twist the
power plug clockwise to
lock it.

Chapter 3 – Operation
Page 18 TestEquity 101H Temperature/Humidity Chamber
Purge Operation
The Purge mode is enabled through the Purge button on the F4T controller.
If you are running a temperature-only profile to reduce to possibility of condensation in the
chamber and on your test sample, Purge can be turned ON or OFF within each profile step.
When using purge in a profile, we recommend you turn Purge ON during ramp down, low
temperature soak, and ramp up steps. You can turn Purge OFF during a high temperature soak
step to conserve GN2 or the Air Drier desiccant.
Adjusting the Purge Flow
A flowmeter is located on the front panel to adjust the flow of purge gas into the
chamber. The flowmeter has a scale, calibrated in SCFM. The flow of purge gas
should be adjusted to the minimum amount required to obtain the desired drying in
the chamber for your conditions. A suggested starting setting is 1 to 2 SCFM (the
picture here shows the flowmeter adjusted for 1 SCFM. We do not recommend setting
the flowmeter higher than 3 SCFM.
Relief Vent
Excess pressure in the chamber workspace is vented through a pressure-relief check-valve which
is located behind the panel of the rear compartment. There is no need to vent this externally.

Chapter 4 – Using the F4T Front Panel
TestEquity 101H Temperature/Humidity Chamber Page 19
Chapter 4 – F4T Temperature/Humidity Controller
F4T Menus
This chapter is designed to give you a better understanding of the structure and navigation of the
F4T menus as viewed from the front panel.
Understanding F4T Menus
The graphic below illustrates at a high level the structure of the F4T menus.

Chapter 4 – Using the F4T Front Panel
Page 20 TestEquity 101H Temperature/Humidity Chamber
Navigating and Understanding the User Interface
Home Screen
After powering up the controller a white screen will appear first while initializing. It will then go
blank for a short time before the Watlow F4T logo appears. Once the startup process is
completed the Home Screen will be presented. The image below shows the Home Screen while a
profile is running.
①Controller Status:Indicates alarms and errors if they occur. The current security level is
shown as “User” (see “Security” section). Also indicates if Data Logging is enabled (REC is
enabled in this image) and if a USB thumb drive is plugged into the USB host port (USB icon is
present in this image, indicating that a thumb drive is plugged in). The button shown in the
center of the status bar allows you to view alarm and error messages when pressed.
②Profile Status Bar: Provides visibility and information pertaining to running profiles as
well as access to available profile actions (see “Creating and Editing Profiles” section).
③Vertical Ellipsis: Displays current control mode while also providing access to other
operational parameters such as the Ramp to Set Point, Autotune, PID Settings, and more (see
“Changing Loop Operational Parameters” section).
④Next Page:Home screen has been setup to display multiple pages (loops). The left and
right arrows on each side of the home screen provides navigation from one to the other (see
“Personalizing the Home Screen” section). Model 101H is configured by TestEquity to have
three screens. The first one shows Temperature and Humidity (as pictured above). The second
one shows Temperature Only. The third one shows Humidity only.
⑤Output Widget Bar:Function keys and their output status (ON/OFF).
1. Controller
Status
3. Vertical
Ellipsis
4. Next Page
2. Profile
Status
5. Output
Widget