FTS ThermoJet THJ80 User manual

Document # 200-31974-999 Rev. 009
ThermoJet
AirForcingSystem
Operator’sManual
TM
FTS
3538 Main Street
Stone Ridge NY 12484
[phone] or [phone]
Fax: [phone]
[email protected]
www.SPindustries.com
SP Service
[phone] or [phone]
Fax: [phone]
[email protected]

© SP Industries, Inc. 200-31974-999 Rev. 009
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Notice
This Operation Manual contains confidential and proprietary information of SP Industries, Inc. and
may be used only by a recipient designated by and for purposes specified by SP Industries, Inc.
Reproduction of, dissemination of, modifications to, or the creation of derivative works from this
manual, by any means and in any form or manner, is expressly prohibited, except with the prior
written permission of SP Industries, Inc. Permitted copies of this document must retain all proprietary
notices contained in the original.
The information in this document is subject to change without prior notice. Always confirm with SP
Industries, Inc. that you are using the most current version of this document. SP Industries, Inc. is
free to modify any of its products and services, in any manner and at any time, notwithstanding the
information contained in this document.
THE CONTENTS OF THIS DOCUMENT SHALL NOT CONSTITUTE ANY WARRANTY OF ANY
KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE OR
GIVE RISE TO ANY LIABILITY OF SP INDUSTRIES, INC., ITS AFFILIATES OR ITS SUPPLIERS.
The terms and conditions governing the use of this Operation Manual shall consist of those set forth
in written agreements with SP Industries, Inc.
All brand or product names mentioned may be trademarks or registered trademarks of their respective companies.
© 2008 SP Industries, Inc. All marks herein are used under license.

© SP Industries, Inc. 200-31974-999 Rev. 009
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Contents
Contents .................................................................................................................................................iii
Important Symbols..................................................................................................................................5
Introduction.............................................................................................................................................7
Manual Introduction............................................................................................................................................7
System Description ............................................................................................................................................7
Description of Equipment...................................................................................................................................8
System Features................................................................................................................................................9
System Specifications........................................................................................................................................9
System Options and Accessories.......................................................................................................................9
Installation.............................................................................................................................................12
Unpacking Information .....................................................................................................................................12
Installation Planning.........................................................................................................................................13
System Operation.................................................................................................................................15
Assembly Instructions ......................................................................................................................................15
Interconnections...............................................................................................................................................15
RS232 Communication ....................................................................................................................................17
GPIB/IEEE488 Communication........................................................................................................................17
Removable Display..........................................................................................................................................18
Optional Motorized Arm....................................................................................................................................18
Operation Features...............................................................................................................................20
System Controller.............................................................................................................................................20
System Power..................................................................................................................................................20
Display Screens....................................................................................................................................22
Nozzle Limit Temperature Calibration Operation (NLTC).................................................................................22
Manual Mode Features ....................................................................................................................................25
Program Mode Features ..................................................................................................................................28
Trend Display Features....................................................................................................................................30
Utilities Display Features..................................................................................................................................31
Alarm Features.................................................................................................................................................51
Base Unit Controls................................................................................................................................52
System Operation.................................................................................................................................54
Startup Procedure............................................................................................................................................54
Shutdown Procedure........................................................................................................................................55
Manual Operation.............................................................................................................................................55
Program Operation...........................................................................................................................................56
Remote Computer Operation ...............................................................................................................59
Serial RS232 Standard offering........................................................................................................................59
GPIB Option.....................................................................................................................................................59
ThermoJet Application..........................................................................................................................61
Installing ThermoJet application on a PC.........................................................................................................61
Installing the NI communication drivers............................................................................................................61
Running the THJ80 Application........................................................................................................................62
THJ80 Application Serial Set Up......................................................................................................................62
Manual Screen.................................................................................................................................................63
Program Screen...............................................................................................................................................64
Utilities..............................................................................................................................................................65
ThermoJet Command Set ....................................................................................................................66
ThermoJet GPIB Command Set.......................................................................................................................67
Calibration Introduction ....................................................................................................................................68
System Maintenance............................................................................................................................74
Maintenance Introduction.................................................................................................................................74
PM Checklist....................................................................................................................................................76
Service & Warranties............................................................................................................................77

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Table of Figures
Figure 1 – Common Test Fixture............................................................................................................................ 8
Figure 2 - Accessories ..........................................................................................................................................11
Figure 3 – THJ80 ThermoJet w/ Motorized Arm option.........................................................................................15
Figure 4 – Rear Panel Connections......................................................................................................................16
Figure 5 – Improper Start-Up Screen....................................................................................................................21
Figure 6 – Nozzle Limit Temperature Calibration NLTC Pop Up Screen ..............................................................22
Figure 7 – NLTC Screen .......................................................................................................................................23
Figure 8 – NLTC Completed Screen.....................................................................................................................24
Figure 9 – Manual Mode Screen...........................................................................................................................25
Figure 10 – Air Flow Screen..................................................................................................................................26
Figure 11 – Shutdown Warning Screen ................................................................................................................27
Figure 12 – Shutdown Screen...............................................................................................................................27
Figure 13 – Program Screen.................................................................................................................................28
Figure 14 – Load/Save Screen..............................................................................................................................29
Figure 15 – Trending Screen ................................................................................................................................30
Figure 16 – Utilities Screen...................................................................................................................................32
Figure 17 – Auto-Tune Screen..............................................................................................................................32
Figure 18 – Auto-Tune Warning Screen................................................................................................................34
Figure 19 – Control Status Screen........................................................................................................................35
Figure 20 – Set Up Screen....................................................................................................................................36
Figure 21 – About Screen .....................................................................................................................................37
Figure 22 – Date and Time Screen.......................................................................................................................37
Figure 23 – Compressor Status Screen................................................................................................................38
Figure 24 – Heater Output Values Screen............................................................................................................39
Figure 25 – Edit Heater Output Values Screen.....................................................................................................40
Figure 26 – Maintenance Screen..........................................................................................................................41
Figure 27 – Forgot Password Screen....................................................................................................................41
Figure 28 – Air Flow Calibration Screen................................................................................................................42
Figure 29 – Compressor Maintenance Screen......................................................................................................42
Figure 30 – Password Screen...............................................................................................................................43
Figure 31 – Command Set Option Screen............................................................................................................44
Figure 32 – Configure Communication Port RS232 Screen..................................................................................45
Figure 33 – Configure Communication Port GPIB Screen....................................................................................46
Figure 34 – Defrost Screen...................................................................................................................................47
Figure 35 – Temperature Calibration Screen 1.....................................................................................................48
Figure 36 – Manual Mode Ramp Rate Screen......................................................................................................49
Figure 37 – Air Temperature Calibration Screen 2................................................................................................50
Figure 38 – Alarm Screen .....................................................................................................................................51
Figure 39 – Defrost Warning Screen.....................................................................................................................51
Figure 40 – ThermoJet Head ................................................................................................................................52
Figure 41 – Cross-sectional View of Head............................................................................................................52
Figure 42 – Manual Mode Screen.........................................................................................................................56
Figure 43 – Program Screen.................................................................................................................................57
Figure 44 – Temperature Setpoint Warning Screen..............................................................................................58
Figure 45 – Application Communication Method...................................................................................................62
Figure 46 – Application Manual Screen ................................................................................................................63
Figure 47 – Application Program Screen ..............................................................................................................64
Figure 48 – Application Utilities Screen.................................................................................................................65
Figure 49 – Air Calibration Warning Screen..........................................................................................................69
Figure 50 – Temperature Calibration Screen 1.....................................................................................................69
Figure 51 – Calibration Exit Warning.....................................................................................................................70
Figure 52 – DUT Temperature Calibration Screen................................................................................................70
Figure 53 – Temperature Calibration 2 Screen.....................................................................................................72
Figure 54 – Temperature Calibration 2 Running Screen.......................................................................................72
Figure 55 – Temperature Calibration 2 Completed Screen...................................................................................73

© SP Industries, Inc. 200-31974-999 Rev. 009
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ImportantSymbols
FTS designs and manufactures units to be safe and reliable systems. Safety features are
incorporated throughout and appropriate signs and symbols are provided. In this manual, safety
issues are addressed in context. Users are strongly encouraged to become familiar with these
symbols.
Warning! Refer to manual text. Injury or even death
may result if a recommendation marked with this symbol
is not heeded.
Electric Shock Danger! Use appropriate caution to avoid injury or death.
Burn Danger! Potentially hot surface. Use appropriate caution.
Do not store flammable materials in chamber.
Wear Safety Glasses.
Crush Hazard. Keep hands clear when operating door.
Corrosive Chemical. Wear suitable gloves, safety glasses, and protective clothing.
Property Caution! To prevent damage to chamber equipment and/or load, adhere
to procedures marked by this symbol.
Practical Operating Tip. These recommendations streamline unit operation and
prevent common operator errors.

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Introduction
Manual Introduction
Congratulations on your decision to purchase the THJ80 ThermoJet for your thermal
conditioning application. Used and maintained properly, your THJ80 will give you many years
of outstanding temperature testing performance.
This instruction manual contains all the information needed to install, use and maintain your
THJ80. Please read this manual completely and become familiar with the THJ80 before
attempting to operate it. Take special note of the preventative maintenance section. Timely
maintenance will prolong the life of the ThermoJet. The average operator is not expected to
perform repairs without qualified assistance. In the event the ThermoJet needs repair, please
contact your local FTS representative, or call the SP Service Department.
FTS reserves the right to improve the design, quality, and performance of all its products
without notice.
System Description
The THJ80 is a mechanically refrigerated system designed to provide high volume, high
velocity, temperature controlled airflow to an enclosed, thermally-isolated environment. A
complete system consists of a base unit cabinet, a flexible air delivery assembly, a holding
arm (optional), a shroud (optional), a system controller, and a touch screen.
The base unit cabinet contains the refrigeration system, air filters, air dryer, flow control, and
electrical components. Removable, soundproofed panels provide easy access to the base
unit’s internal component for maintenance or service. The base unit cabinet is supported by
four, heavy duty, full-swivel, lockable casters. Each frame corner will accept a leveler, which
may be purchased separately.
The flexible air delivery assembly is a well-insulated hose connecting the base unit cabinet to
the shroud (or customer specific test chamber). It holds the main airline, purge airline, air
heater, electrical power wires, and thermocouple leads. For improved reliability, no liquid or
gas refrigerant lines are located inside this assembly.

Operator’s Manual: ThermoJet Chapter 1: Introduction
© SP Industries, Inc. 200-31974-999 Rev. 009
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Description of Equipment
The THJ80 is an air temperature forcing system for thermal testing electronic components. It
is available in the following configurations:
THJ80 -80°C to 225°C
1 208 - 230V @ 60Hz / 200V @ 50Hz
2 220 - 230V @ 50Hz
1 Without holding arm
2 Arm with pneumatic head (up/down)
3 Motorized arm
2 RS232 / GPIB
Figure 1 shows a typical thermal test fixture layout. The insulated shroud prevents ambient
air entrainment, creating a well-defined, repeatable heat transfer environment. The shroud is
usually lowered on to the test fixture with the airflow centered on the DUT. Silicone sponge
insulation is commonly used to thermally isolate the DUT from supporting surface. Although
this configuration is the most popular, the ThermoJet can be adapted to test circuit boards
and a wide range of electronic assembly shapes and sizes. A broad range of standard and
custom enclosures are offered by FTS for this purpose.
1. To ThermoJet Air Delivery Assembly
2. Shroud
3. Temperature controlled air flow
4. DUT
5. Silicone sponge
6. External (DUT) thermocouple
Figure 1 – Common Test Fixture

Operator’s Manual: ThermoJet Chapter 1: Introduction
© SP Industries, Inc. 200-31974-999 Rev. 009
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System Features
The THJ80 ThermoJet includes the following standard features:
•High capacity, reliable, self-contained, two-stage mechanical refrigeration.
•Wide temperature range that covers most military, industrial, automotive, and commercial
testing requirements.
•Adjustable air flow between 5 and 20 SCFM, in 1 SCFM increments.
•Rapid cycling between temperature extremes.
•Internal thermocouple for air temperature control and monitoring.
•External thermocouple for closed loop DUT temperature control.
•DUT controller auto-tuning.
•Up to 49 eight-step ramp soak recipes.
•Alphanumeric recipe names for easy storage and retrieval.
•Data logging.
•Built-in safety features such as a low air flow safety, an Emergency Mechanical Off button,
and a resettable circuit breaker.
•Easy to change, quick-release shroud with silicone sponge seal to isolate DUT from ambient
environment.
•Caster-mounted for easy maneuverability.
•Compact design that minimizes floor space requirements.
System Specifications
Temperature range: -80°C to 225°C
Temperature accuracy: +/- 0.1 °C
Temperature stability: +/- 0.5 °C
Temperature settablility: 0.1°C
Temperature indication: 0.1°C
Outlet Flow: 5 to 20 SCFM
Dimensions: 21”W x 27”D x 38”H base unit (w/o air delivery assy.)
Weight: 425 lbs. (193kg)
System Options and Accessories
The standard THJ80 comes equipped with a holding arm and pneumatic lift to support the air
delivery assembly, and automatically raise or lower the shroud. The no-arm option comes
with a cradle to hold the nozzle when the arm assembly is not required. See page 18 for
instructions on operation of the motorized arm option.
The system PLC controls all aspects of the temperature testing. FTS designed the control
algorithms and features specifically for the THJ80 to provide an easy-to-learn, user-friendly
operating environment through the touch screen while still providing the flexibility of remote
access and data logging.

Operator’s Manual: ThermoJet Chapter 1: Introduction
© SP Industries, Inc. 200-31974-999 Rev. 009
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ThermoJet™Accessories
Ex. Part Number Description
PE-2253 Display cable, 10 ft
A TJ-SHP-35 Thermal cap, phenolic, 3.5" ID x 2" deep. Includes one SSK235
TJ-SHP-45 Thermal cap, phenolic, 4.5" ID x 2" deep. Includes one SSK245
TJ-SHP-55 Thermal cap, phenolic, 5.5" ID x 2" deep. Includes one SSK245
B SH35T1 Thermal cap, transparent, 3.5" ID x 2" deep. Includes one SSK235
SH45T1 Thermal cap, transparent, 4.5" ID x 2" deep. Includes one SSK245
SH55T1 Thermal cap, transparent, 5.5" ID x 2" deep. Includes one SSK245
THJ-TC1 "K" type thermocouple kit
C SSK235 Silicone rubber shroud kit, non-conductive, 2 pc, used with 3.5" thermal cap
SSK245 Silicone rubber shroud kit, non-conductive, 2 pc, used with 4.5" and 5.5"
thermal cap
CSSK235 Silicone rubber shroud kit, conductive, 2 pc, used with 3.5" thermal cap
CSSK245 Silicone rubber shroud kit, conductive, 2 pc, used with 4.5" and 5.5" thermal
cap
D PAC-SS1 Silicone sponge, 1' x 1' x 1/4"
PAC-SS3 Silicone sponge, 1' x 1' x 1/2"
PAC-SS4 Conductive silicone sponge, 1' x 1' x 1/16
PAC-SS5 Silicone sponge 3’ x 3’ x 1/4"
PAC-SS6 Silicone sponge 3’ x 3’ x 1/2"
TJ-SHP-44 Thermal cap, phenolic, 4" x 4" x 3/4"deep
TJ-SHP-46 Thermal cap, phenolic, 4" x 6" x 3/4"deep
E NHA101 Handler mating hose
NHA201 Thermal chamber mating hose
BTS-1210-NW Thermal chamber, 12" x 10" ID, no window
BTS-1210-VW Thermal chamber, 12" x 10" ID, w/ 8" x 6" viewing window
BTS-1513-NW Thermal chamber, 15" x 13" ID, no window
BTS-1513-VW Thermal chamber, 15" x 13" ID, w/ 10" x 8" viewing window
F THJ-LVD LabView drivers
THJ-LVA Remote interface application

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© SP Industries, Inc. 200-31974-999 Rev. 009
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Figure 2 - Accessories
THJ80 accessories can make the temperature testing process easier, more efficient, and safer.
These accessories include silicone sponge insulation, thermocouples, various sized shrouds, and
spare parts kits.
Silicone sponge insulation isolates the DUT from the electrical test fixture; increasing thermal
efficiency and protecting the fixture from the THJ80 induced temperature extremes. The required
insulation thickness will depend on the application and on the fixture’s temperature sensitivity.
Various thermocouple gauges and lengths can be provided to properly instrument even the most
complex DUTs.
Standard shrouds are available in several different sized cylindrical and rectangular shapes to
accommodate larger DUTs, circuit boards, or assemblies. Additionally, FTS in-house design and
manufacturing capability can tailor shrouds to a customer’s specific application. We will be glad to
provide a quotation for a custom-built shroud to fit your exact requirements.
Contact your FTS sales representative to order THJ80 accessories.
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Installation
Unpacking Information
The THJ80 ThermoJet is usually shipped by a padded van to provide it a smoother ride to its
destination and to facilitate moving it directly to the test floor.
The THJ80 ThermoJet can be shipped by a motor freight common carrier. In this case, the THJ80
will be bolted to a purpose-built wooden pallet through each of the four corners of its frame. This
pallet is equipped with a ramp to facilitate safe unpacking. A heavy-duty, tri-wall cardboard sleeve
will be placed over the ThermoJet and secured to the pallet by metal strapping. Upon receipt,
please inspect the carton exterior for any signs of mishandling or damage. Take detailed notes or
photographs of any damage.
Carefully open the carton and remove the items inside. Then follow the “de-crating” procedure
enclosed with the ThermoJet to unbolt the unit from the pallet, deploy the ramp, and roll the unit
off. Do not pull or put any stress on the flexible air delivery assembly. It is recommended that all
packaging material be retained in case it is necessary to return the item to FTS for any reason.
NOTE: Notify the motor freight carrier immediately of any damage.
If the shipment was made FOB factory, FTS cannot collect any damages from the carrier. The
customer must initiate any shipping damage claims. FTS will be available to work with the
customer to solve any problems as efficiently as possible.
If the TJ-ASM anti-static mat option was ordered, remove the plastic liner from the mat to make it
effective. Lift up the black, semi-conductive silicon rubber mat from the ThermoJet’s molded
plastic top. Peel off the protective white plastic sheet covering the top surface of the stainless
steel plate. This plastic is in place only to protect the stainless steel during shipping.
Four optional leveling pads are available by ordering part number TJ-LLK. After the ThermoJet
has been removed from the pallet, these pads can be screwed into each of the four corners of the
frame. Lowering the pads will lift the ThermoJet off its casters and provide a more stable platform.

Operator’s Manual: ThermoJet Chapter 2: Installation
© SP Industries, Inc. 200-31974-999 Rev. 009
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Installation Planning
THJ80:
Footprint: 21 x 27 in.
Weight: 425 lbs.
The THJ80 ThermoJet is intended to operate in ambient conditions of 23°C to 28°C and 0%
to 50% relative humidity. The THJ80 will, however, operate over a wide variety of ambient
conditions without damage. Customers with unusual or severe ambient conditions should
contact FTS for advice before operating their system.
The control touch screen can be located on the top of the base unit (attached to the hose/arm
support post) or placed closer to the test fixture.
The THJ80 base unit cabinet must have at least six inches of clearance around the rear and
left side panels to allow sufficient airflow for cooling. Blocking the airflow may cause the
compressors to overheat, reduce performance and ultimately lead to compressor failure.
Input Power
The THJ80 ThermoJet can be supplied with either of two different operating voltages
configurations:
Option 1: 208V - 230V @ 60Hz / 200V @ 50 Hz
Option 2: 220V - 230V @ 50 Hz (A step-down transformer is Included with this option.)
Check the electrical data plate in the lower rear corner of the right side to confirm your
system’s correct operating voltage.
The ThermoJet requires a 30A electrical source. Although the nominal operating current will
be less, the full 30A capacity is necessary when operating at the high temperature limits.
A ten-foot long, 10/3 (hot, hot, and ground) Type SO electrical cord is provided with the
system. Due to the wide variety of electrical receptacles used in the industry, no electrical
plug is provided. Before wiring the unit to a power supply, a CPC connector (supplied with the
unit) should be installed at the back of the panel (Fig. 3).
NOTE: Lock the main breaker in the OFF (OPEN) position when connecting electrical
power to the unit in order to prevent unintended start up. A breaker lock out device is
supplied with the unit.
For proper system operation and to prevent damage to electrical components, the system’s
actual running voltage should be within +10% to -0% of the rated voltage. It is important to
note that actual voltages may fluctuate significantly depending on the season or time of day.

Operator’s Manual: ThermoJet Chapter 2: Installation
© SP Industries, Inc. 200-31974-999 Rev. 009
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Input Gas
In order to provide the maximum 20 SCFM flow, the THJ80 ThermoJet requires 25 SCFM of
air supplied with a 10°C dew point and a line pressure between 85 and 125 psig. The
ThermoJet can be operated at input volumes as low as 7scfm so long as the input pressure
remains above 85 psig, but the nozzle flow will be limited to ~5 SCFM.
Although the ThermoJet is designed to operate with compressed air, dry nitrogen is
acceptable so long as the work area ventilation is sufficient to guarantee a safe breathing
environment for the operator. No other gases are recommended; flammable or explosive
gases should never be used.
A 1/2" FPT male coupler plug quick-connect fitting and a 1/2" NPT female coupler are
provided to connect the air supply to the base unit’s rear panel. Additional quick-connect
fittings or lines may be purchased through the FTS Service Department.
The ThermoJet air supply line should be at least 1/2" ID. Using a smaller line will limit
performance.
Repackaging
If, for any reason, it becomes necessary to return the THJ80 or any of its options or
accessories to FTS, obtain a Return Authorization Number (RAN) from the FTS Service
Department before shipping the unit. This RAN must be clearly indicated on the outside of the
shipping material. Items returned to FTS without a RAN will experience processing delays
and/or may be refused at the receiving dock.
It is strongly recommended that items be repackaged in their original cartons with the original
packing materials. If desired, appropriate carton and packing materials may be purchased
from FTS to facilitate returns.

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© SP Industries, Inc. 200-31974-999 Rev. 009
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SystemOperation
Assembly Instructions
The THJ80 ThermoJet is designed to be self-contained, compact, and maneuverable. The base
unit cabinet, flexible air delivery assembly and shroud have been shipped completely assembled.
The holding arm, if ordered, will require some adjustment to position it in accordance with your
other test equipment.
Figure 3 – THJ80 ThermoJet w/ Motorized Arm option
Interconnections
The THJ80 ThermoJet will be shipped with the touch screen already connected to the base
unit cabinet via a two foot long umbilical cable. The touch screen’s RS232 cable is removable
and may be replaced by a longer cable if desired.

Operator’s Manual: ThermoJet Chapter 3: System Operation
© SP Industries, Inc. 200-31974-999 Rev. 009
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1. Connector Panel
a. GPIB/IEEE/488 port
b. Safeties Connector, 9-pin CPC
c. RS232 to GPIB/IEEE488 converter cable RS232 Connector
d. RS232 port
e. DUT thermocouple connector
2. Main Power
3. Main Air Inlet/Shut-off Valve
4. Line Cord
5. Automatic Condensate Drain
Figure 4 – Rear Panel Connections
The connector panel (Item 1) provides connectors for the external (DUT) Type-K
thermocouple and the computer interface cables. The alumel (-) leg of the thermocouple plug
is slightly smaller than the chromel (+) leg and must be inserted in the top of the receptacle.
The system is equipped with an automatic condensate drain (Item 5) which will drain off any
water or oil trapped by the inlet pre-filters that are present in the supplied air stream. It will
automatically drain from the unit at the right rear corner, beneath the machine. A collection
1. a b c
2.
3.
4.
REF:
1.
5.
RS232
GPIB/IEEE488
d e

Operator’s Manual: ThermoJet Chapter 3: System Operation
© SP Industries, Inc. 200-31974-999 Rev. 009
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pan is recommended. Should fluid accumulate, this is a sure sign of poor supply air quality.
Supply air with a low dew point and low oil carry-over, will cause little or no liquid
accumulation. Conversely, rapid or consistent liquid accumulation indicates poor air supply
performance. Continued use with this condition will cause permanent damage to the
Desiccant Dryer (internally mounted) and premature equipment failure.
The drain line exiting the machine may be re-routed to an alternate drain site at the operator’s
discretion. If this option is chosen, the operator should make provisions to assess the air
supply quality on a regular schedule.
RS232 Communication
To communicate using the RS232 protocol, unplug the converter cable (c) and connect your
communication cable directly to the RS232 port.
GPIB/IEEE488 Communication
To communicate using the GPIB protocol, the converter cable (c) must be connected to the
RS232 port. Then the operator must connect the in-house GPIB cable into the ThermoJet
IEEE/488 port.

Operator’s Manual: ThermoJet Chapter 3: System Operation
© SP Industries, Inc. 200-31974-999 Rev. 009
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Removable Display
The touchscreen may be removed from the docking station by releasing the two thumbscrews. To
operate the machine remotely, replace the connecting cable with the optional 20’ cable.
Optional Motorized Arm
Operation
NOTE: For safety purposes, the arm control requires two-button
operation.
1. Initialize the machine.
2. If a shroud is utilized, connect the two purge lines to it and
tighten thumbscrews.
Purge Lines
Connected

Operator’s Manual: ThermoJet Chapter 3: System Operation
© SP Industries, Inc. 200-31974-999 Rev. 009
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1. Swivel arm sideways to clear work surface.
2. Adjust rate of downward travel speed with setscrew.
3. Press Head Down on touchscreen and lower the probe head.
4. Make a course adjustment of the height of the shroud contact
area to the level of the work surface either through the motor
control for whole arm toggle, or manually raising and lowering
the probe head at the clamp.
5. Press Head Up and raise the probe head.
6. Swivel the arm over the device and tighten three handles on the
arm.
7. Press Head Down and adjust height to form a seal between the base gasket and the work
surface when the air cylinder is at full stroke.
1
2
3

Chapter
4
© SP Industries, Inc. 200-31974-999 Rev. 009
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OperationFeatures
The following is a brief overview of the THJ80 ThermoJet controls and indicators.
System Controller
A PLC and touch screen display provides the user with easy access to all functions
necessary to perform precise temperature testing.
All of the control hardware interfaces and software resides in the PLC. The PLC is located in
an electrical box within the base unit, isolated from the high voltage components.
The touch screen is the operator interface to the PLC and is connected by means of a RS232
cable on top of the system. The touch screen is attached to the arm support column when
shipped. It can be detached for remote operation using a standard RS232 serial cable. A
description of the controls and indicators contained in the control module follows.
System Power
The main breaker, located on the upper left corner of the rear grill, controls the electrical
power to all of the ThermoJet components. When OFF (open), the entire system is de-
energized. When ON (closed), the PLC will be energized and the rest of the system will be
powered up to the EMO button (Emergency Mechanical Off). The EMO button is located on
the top left corner of the base unit. Lifting this EMO button will enable the main power to the
touch screen, compressors, heater, solenoid valves, and stepper motor board.
When first delivered, the ThermoJet main breaker will be locked in OFF (Open) position with
the EMO button in the DOWN (Emergency Off) position. After inserting the CPC connector
and connecting the unit to the electrical service, the initial start up is as follows:
1. Ensure compressed air is supplied to the system and the main air inlet valve is open.
2. Lift the EMO button to the UP (Normal Operation) position.
3. Remove the breaker lockout device.
4. Switch the breaker to the ON (Closed) position.
The PLC will automatically go through its initialization sequence, the airflow will start, the
refrigeration will go through its start up sequence, the Manual screen (Figure 9) will be
displayed and the system will go into IDLE Mode.
The IDLE Mode is the ThermoJet base operating mode. When in IDLE mode, the ThermoJet
sets the temperature setpoint to 25°C, the airflow to 5 SCFM, and raises the head (if
applicable). From IDLE Mode, the ThermoJet can start temperature testing in the MANUAL,
PROGRAM or REMOTE modes. The system will remain in an IDLE condition until further
commands are entered.