CLEAN ROOM DEVICES CRD216SS User manual

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CRD216SS
TIME DELAY HEATED TUBING
EXPANDER
OPERATIONS MANUAL
VERSION 2.8
LAST EDITED 05.11.2022
cleanroomdevices.com

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Table of Contents
Table of Contents…………………….…………………………………………………………...2
1.0 General Product & Safety Information…………………………………………….…..…3
1.1 Product Information
1.2 Safety Information
2.0 Installation………………………………………………….………………..….…….…..5
2.1 Air Supply
2.2 A/C Power
2.3 Connection Setup
3.0 Operation…………………………………………………………………..……...…...….5
3.1 Jaw Adjustment
3.2 Setting Time Delays
3.3 Expanding Operations
3.4 Jaw Installation and Removal
4.0 Maintenance…………………………………………………………………….…….…17
4.1 Verifying temperature
4.2 Periodic Cleaning (annually)
4.3 Heater Calibration (TEMPCO Controls)
5.0 Troubleshooting………………………………………………………………….……....19
6.0 Product Specifications………………………………………………………..………..…19
7.0 Durometer Scale…………………………………………………………………..……...19
8.0 Electrical Diagram…………………...…………………………………………..…….....20
9.0 Parts List…………………………………..…………………………….………....….….21
10.0 Warranty…………………………………………………………………………...…… 22
10.1 Warranty..
10.2 Warranty Period

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1.0 General Product & Safety Information
1.1 Product Information
•The CRD216SS is designed to expand stiffer tubing such as nylon, polyethylene,
polypropylene and Teflon tubing. With the heater off, the unit can also expand flexible
tubing up to a durometer of Shore A 85 (Shore D 35), including any non-metallic braided
materials.
•The minimum/maximum inside tube diameter is .040” –1/2”.
•The unit operates up to a temperature of 350 °F.
•The standard jaw sets are universal and are designed to be used with an inside diameter
range of .040” to 1/2". Other jaw sets are available that are optimized for a specific size
(see accessories page at www.cleanroomdevices.com or call Clean Room Devices, Inc.).
•The device features simple yet reliable jaw adjustment, which can be made by the
operator.
•The device features independently adjustable expansion and interval period adjustments
from 0.5-5 seconds, allowing for repeatability of operation.
•The serial number for the device is located on the back of the cover, between the
electronics enclosure and the power entry module. Figure 1.1.1
Figure 1.1.1
1.2 Safety Information
•This product uses an air cylinder and foot pedal to pneumatically actuate and expand the
jaws. The unit is not intended to expand anything other than flexible tubing.
Electronics Enclosure
Power Entry Module

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Avoid placing your fingers between the upper jaw block and the air cylinder mounting bracket while
operating unit, sufficient pressure exists to cause personal injury.
Arrows indicate pinch points
•During heating and once the unit reaches operating temperature, the jaws and metallic
areas around the jaws will be extremely hot. It is recommended to set the jaw gap before
beginning the heating cycle. Allow the unit to cool to a safe and or comfortable handling
temperature before removing and reinstalling the jaw set.
Avoid direct contact with the jaw set while the heater is on. Surface will be hot enough to cause severe
burns.
WARNING
WARNING

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2.0 Installation
Ensure all five (5) rubber feet are completely stabilized on your work surface prior to applying
air pressure to the unit.
2.1 Air Supply
•Connect a 1/4” OD air supply hose to the inlet on the pressure regulator. The air supply
should be free of moisture and contaminates and provide a minimum of 100 psi.
•The regulator on the unit should be set to 80-120 psi.
2.2 A/C and DC Power
•This product uses standard 60Hz alternating current power provided by your local utility.
Ensure that you use the correct power supply (120VAC/24VDC) for the type of power in
your region. The heaters and digital controllers are powered by the 120VAC power
source, and the time-delay circuitry is powered by the 24VDC power source. Both must
be present to operate.
2.3 Connection Setup
•Connections on the CRD216SS are simple. Refer to Figure 2.3.1 below when making all
connections to the back panel.

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Figure 2.3.1
3.0 Operation
3.1 Jaw Adjustment
Jaw Hold-Open
Toggle Switch
Toggle Switch
Power Jack
Foot Pedal Jack
Heater Controller Power Switch
120/240 VAC IN
Air IN
Jaw Set
Thumb Wheel
Lock Nut

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Figure 3.1.1 Jaw Adjustment
CAUTION: THE UNIT CAN BECOME EXTREMELY HOT. CARE MUST BE USED AT ALL
TIMES WHEN EXPANDING AND DURING JAW INSTALLATION AND REMOVAL.
•Start by using a 9/16” wrench to loosen the 3/8” hex nut at the bottom end of the lower
jaw support block assembly to adjust the unit for the proper tubing size.
•With A/C power and compressed air attached to the expander, actuate the electric foot
switch which will activate the expander. Adjust the expander lower jaw to the position
you want using the Thumb Wheel Knob. Note that the jaws may be set to remain in the
“open” position using the toggle switch noted in Figure 2.3.1, and triggering the foot
pedal. Make sure the toggle switch is returned to the “off” position, or the jaws will
remain open.
•Locate the lower expander jaw position for your tubing size using the larger thumb-
wheel.
(This adjustment may require fine tuning depending on your tubing I.D., O.D.,
Durometer or material. It is recommended you note or log the jaw gap settings for future
applications, or usage.)
3.1.A Using the Jaw Hold-Open Feature
•A Jaw Hold-Open switch has been installed on the tubing expander. This makes setting
the gap between the jaws much simpler.
1) With the toggle switch in the “ON” position, flip the jaw hold-open switch to the
“ON” position (UP).
Figure 3.1.A.1 Figure 3.1.A.2
2) Use the foot pedal to trigger the cycle. The upper jaw will retract and remain open.

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Figure 3.1.A.3
3) Flip the jaw hold-open switch to “OFF” position (DOWN) and the upper jaw will
return to the non-expanded position.
Figure 3.1.A.4 Figure3.1.A.5
3.2 Setting the Time Delays
•The CRD216SS expansion operation is designed to let the operator expand each piece of
tubing twice. After the first expansion, the jaws will close and the operator rotates the
tube 90 degrees and the jaws will automatically expand again using the sensor. This
ensures that the tubing is expanded in a uniform fashion, and not deformed in only one
direction. To assist with this 2-step expansion operation, there are two time delay relays
on the unit.
•Expansion Time –This setting adjusts the rate (0.5-5.0 seconds) at which the
tube expansion occurs. The rate at which the tube is expanded is critical to
prevent tearing. Some stiffer tubing might need a longer expansion time, while
softer tubing can be expanded rapidly.
•Interval Time –This setting adjusts the time delay rate (0.5-5.0 seconds) at
which the jaws will cycle. It is adjusted to allow the operator to rotate the tubing
90 degrees at a comfortable pace between expanding.
•Remove the hole plugs with a screwdriver on the rear cover to gain access to the Time
Delay adjustment pots. Figure 3.2.1

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Figure 3.2.1 Removing Access Hole Plugs
•Using a small Phillips drive screwdriver adjust the Time Delay relays. Figure 3.2.2
Figure 3.2.2 Adjusting the Expansion Time Pot
•Figure 3.2.3 below shows the CRD216SS with the electronics cover removed, as well as
the location of both time delay adjustments on the time delay relay:
Top of unit

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Figure 3.2.3
3.3 Expanding Operation
CAUTION: THE UNIT CAN BECOME EXTREMELY HOT. CARE MUST BE USED AT ALL
TIMES WHEN EXPENDING AND DURING JAW INSTALLATION AND REMOVAL.
•To adjust the jaws for the size tubing to be expanded you need to loosen the 3/8” hex nut
(Lock Nut.)
•With A/C power and compressed air attached to the expander, actuate the electric foot
switch which will activate the expander. Adjust the expander lower jaw to the position
you want using the Thumb Wheel Knob. Note that the jaws may be set to remain in the
“open” position using the toggle switch noted in Figure 3.3.1, and triggering the foot
pedal. Make sure the toggle switch is returned to the “off” position, or the jaws will
remain open.
•Turning the Thumb Wheel clockwise will increase the jaw expansion size, counter
clockwise will decrease the jaw expansion size. This adjustment may require fine tuning
depending on your tubing I.D., O.D., durometer and/or material.
•Once you have the expansion size you want tighten the Lock Nut to secure the
adjustment.
•Place the tube over the ends of both expander jaws and hold firmly in place.
•Actuate the Tube Expander by pressing the electric foot switch.
•Rotate the tubing 90 degrees on the jaws and actuate the Tube Expander by pressing the
electric foot switch again. Failure to do so may result in uneven expansion and/or
damaged tubing!
Interval Time
Adjustment
Expansion Time
Adjustment