Oki HCT-900 User manual
2
1. Warnings and Safety Instructions
A fire may result if this equipment is not used with care and for intended applications.
To avoid electric shock or injury, please follow the instructions below strictly：
• This appliance must be grounded.
• The temperature of this equipment can reach 500°C. Never touch any metal part
of this equipment.
• The unit can output extremely hot air; to avoid serious injury, never point the
nozzle towards any part of the body.
• Never use this equipment near any flammable materials or gases.
• Never operate the equipment with wet hands.
• All the electrical circuitry within this equipment is rated to operate at the relevant
mains line voltage (depending on model). Always disconnect the power cord
before beginning any repairs and maintenance work.
• Only use OK International spare parts for all repairs and maintenance.
! CAUTION – Important Instructions
In order to avoid damage to the equipment, and ensure a proper working environment,
please follow the instructions below:
• Operate this equipment in a well ventilated room away from any combustible
materials.
• When not be in use, make sure the unit is unplugged from outlet.
• Place handle in stand when not in use.
• Do not drop. Do not use excessive force on the handle. Too much shock and/or
vibration may damage the quartz crystal inside the handle’s thermal tube.
• Do not operate on uneven surfaces.
• Do not pull or carry the equipment by the handle; this may break the wire inside
the handle or disconnect the air tube.
• Allow to cool down before storage.
• When resting the handle on the hander holder, make sure there are no objects
within 30 cm of the tip of the nozzle as nearby objects maybe damaged.
• Do not leave the equipment unattended when switched on.
• Do not disconnect from the mains voltage until pump has stopped running.
WARNING
!
3
Waste Electrical and Electronic Equipment Directive - WEEE (2002/96/EC).
When this product is no longer required, if it cannot be re-used, we ask our
customers not to dispose of it as unsorted municipal waste but to
appropriately recycle the product. In Europe, please contact your OK
International distributor who can advise the recycling options available.
2. Preparing to Use the Unit
Caution: Remove this
screw before
operation
Assemble hand
piece holder on
either side of unit
3. Operating Instructions
The OK HCT-900 uses a thermocouple feedback temperature control technique to
regulate output temperature.
Adjust heat and air flow controls to the required values for the application.
Closed loop feedback controls the temperature even when airflow is adjusted.
The air pump will continue working 90 seconds after the unit is switched off. This
function enables the heater tube to cool down effectively.
Power
On/Off
Air Flow Control
Power Indicator Light
Green Light: Working Status
Yellow Light: Heater Cooling Status
Heat / Temperature
Control
Handle
Holder
Heater
A
ssembl
y
Handle
Nozzle
CAUTION: To change nozzle turn unit off and
let cool.
Push nozzle over heater assembly and tighten clamp
screw.
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
FAX 781.665.0780 - TestEquipmentDepot.com
4. Removing & Replacing Components
De-Soldering Components
1. Select the proper nozzle, secure it to the handle.
2. Plug power cable into electric socket and switch on the power button.
3. Set the desired temperature. Adjust the airflow to desired volume.
4. Move the nozzle close to the component leads; maintain 3-5 mm distance. Use
the hot air to melt the solder.
5. When solder is molten, use a tweezer or other suitable tool to remove the
component from the circuit board.
Soldering Components
1. Choose the proper nozzle, secure it to the handle.
2. Apply the right amount of solder to the circuit board; position the component on
the circuit board.
3. Plug power cable into electric socket and switch on the power button.
4. Set the desired temperature. Adjust the airflow to desired volume.
5. Move the nozzle close to the component leads, blow hot air onto the leads and
melt the solder.
6
5. Maintenance and Service
CAUTION: Risk of electric shock from line voltage – disconnect from electrical supply
before replacement of heating element.
To Change Heater Element
a) Remove black air tube from the back of the handle.
b) Remove the three screws that secure the handle.
c) Separate hand piece.
d) Unplug heater connector and disconnect thermocouple wires.
e) Slide heater element out of heater pipe.
f) Insert new heater element into heater pipe.
g) Plug heater connector and connect thermocouple color wires properly.
h) Re-attach handle together and ensure good fit. Then install screws.
i) Insert black air tube back into place.
Changing the fuse
1. Unplug the power cord from the outlet socket
2. Change for new fuse (located on back panel):
a) HCT-900-21: Slow Acting 4A, 250V (0.5 mm x 20 mm).
b) HCT-900-11: Medium Acting 6.3A, 125V (0.5 mm x 20 mm).
c) HCT-900-10: Medium Acting 6.3A, 125V (0.5 mm x 20 mm).
Remove three screws
Remove air tube from the
back of the handle
Thermocouple wires
Heater
Element
Heater
Connector
Heater Tube
7
6. Specifications & Warranty
OK International warrants the HCT-900 against any defects in materials or
workmanship for one (1) year from the date of purchase by the original owner. This
Warranty excludes normal maintenance and shall not apply to any opened, misused,
abused, altered or damaged items. If the product should become defective within the
warranty period, OK International will repair or replace it free of charge at its sole
option. The repaired or replacement item will be shipped, freight prepaid, to the
original purchaser. The warranty period will start from the date of purchase. If the date
of purchase cannot be substantiated the date of manufacture will be used as the start
of the warranty period.
The Heater Element is covered by a three (3) month warranty, which does not include
damage resulting from unreasonable use of the equipment or from human error.
Repair fees will be charged and subject to the current rates once the equipment is out
of one year warranty.
Specifications
HCT-900-11 HCT-900-21 HCT-900-10
Input Voltage 115 VAC 230 VAC 100 VAC
Power 320 W
Pollution Degree Category II
Storage Temperature 0°C—60°C (32°F—140°F)
Air Pump Type Diaphragm
Air Flow 5-20 l/min.
Control Temperature
(indication only – not
calibrated)
100°C—500°C (212°F—932°F)
Surface Resistivity Unit: 105Ω- 106Ω.
Hand-piece & tube: 107Ω- 1011Ω
Noise Level Less than 46 dBA
Dimensions 210 (L) x 170 (W) x 140 (H) mm
Weight 4.7 kg. (10.4 lbs.)
Certification / Approvals cTUVus, CE
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
FAX 781.665.0780 - TestEquipmentDepot.com
Other manuals for HCT-900
1
Table of contents
