KTL FM DUMMY LOAD DL-10K-FM User manual

Page 1 of 12 KINTRONIC LABS INC. ISO 9001:2015(E) QUALITY MANAGEMENT SYSTEM QP-835-067 Rev. A 2018-08-31
MAILING ADDRESS:PO Box 845, Bristol, TN 37621-0845
SHIPPING ADDRESS: 144 Pleasant Grove Rd., Bluff City, TN 37681
PHONE: [phone] e-mail: [e-mail] website: www.kintronic.com
KTL FM DUMMY LOAD DL-10K-FM
INSTALLATION INSTRUCTIONS
INSTALLATION INSTRUCTIONS –KTL DUMMY LOAD DL-10K-FM
Copyright © 2019 KINTRONIC LABORATORIES INC.

Page 2 of 12 KINTRONIC LABS INC. ISO 9001:2015(E) QUALITY MANAGEMENT SYSTEM QP-835-083 Rev. A 2019-02-11
MAILING ADDRESS:PO Box 845, Bristol, TN 37621-0845
SHIPPING ADDRESS: 144 Pleasant Grove Rd., Bluff City, TN 37681
PHONE: [phone] e-mail: [e-mail] website: www.kintronic.com
TABLE OF CONTENTS
INTRODUCTION………………………………………………………………………………………………….…….….3
INSTALLATION………………………………………………………………………………………………...….……….4
OPERATION…………………………………………………………………………………………………………...…...5
TROUBLESHOOTING……………………………………………………………………………………………….……6
MAINTENANCE…………………………………………………………………………………………………….………7
THEORY OF OPERATION………………………………………………………………………………………….……8
APPENDICES
RECOMMENDED SPARE PARTS…………………………………………………………………………. 9
SPECIFICATIONS………………………………………………………………………………………………… 10
FACTORY SERVICE……………………………………………………………………………………………… 11
WARRANTY……………………………………………………………………………………………………….. 11
LIST OF ILLUSTRATIONS
FIGURE 1. POWER CIRCUIT SCHEMATIC………………………………………………………………… 8

Page 3 of 12 KINTRONIC LABS INC. ISO 9001:2015(E) QUALITY MANAGEMENT SYSTEM QP-835-083 Rev. A 2019-02-11
MAILING ADDRESS:PO Box 845, Bristol, TN 37621-0845
SHIPPING ADDRESS: 144 Pleasant Grove Rd., Bluff City, TN 37681
PHONE: [phone] e-mail: [e-mail] website: www.kintronic.com
INTRODUCTION
The DL-10K-FM is a low reflection and non-radiating forced-air cooled test load for coaxial RF transmission line.
It is used primarily to assist in tuning and troubleshooting of transmitting equipment. An interlock is provided
to protect the load from overheating.
The load can be used for the following specific purposes:
- tuning of transmitters under non-radiating conditions,
- making routine tests and adjustments, and
- substituting for any circuit loading element.
Kintronic Labs Inc. has prepared this manual to ensure the most effective use of the RF test load DL-25K-FM.
However, before attempting to use this product, it is important that this manual be carefully reviewed.
Particular attention should be given to cautionary remarks and statements which involve the proper operation
of the product and the safety of the operator.
Please carefully read over the following:
***WARNING***
VERTICAL CABINET HOUSING WILL BECOME
HOT DURING OPERATION –DO NOT TOUCH
This unit may be operated at full power rating only when ambient air temperature is not above 110oF
(43.33oC).
***CAUTION***
THE INTERLOCK SHOULD BE PROPERLY
CONNECTED TO RF POWER SOURCE TO PREVENT
DAMAGE IN THE EVENT OF MALFUNCTION
Loss of air flow for even a short period of time can result in resistor failure. The interlock will enable the
transmitter to be shut down instantly and automatically in case of insufficient air flow or excessive
temperature.
***WARNING***
DISCONNECT AC POWER
BEFORE SERVICING THE UNIT

Page 4 of 12 KINTRONIC LABS INC. ISO 9001:2015(E) QUALITY MANAGEMENT SYSTEM QP-835-083 Rev. A 2019-02-11
MAILING ADDRESS:PO Box 845, Bristol, TN 37621-0845
SHIPPING ADDRESS: 144 Pleasant Grove Rd., Bluff City, TN 37681
PHONE: [phone] e-mail: [e-mail] website: www.kintronic.com
INSTALLATION
1. Unpack unit from shipping container and inspect for possible shipping damage. Claims for damage in
shipment must be filed promptly with the transportation company.
2. Place unit in operating location. Be sure that there is sufficient clearance on each side for free flow of
air through intake and outlet grates—exhaust air must not be directed back to intake. Do not install
unit near other heat sources.
3. Use unit grounding stud to provide a secure electrical ground separate from AC power cord.
4. Check that AC power switch is OFF and connect power cord to a 120 VAC +/- 10% 50/60 Hz source.
5. Use connector provided to prepare an interlock cable for the associated RF transmitter.
6. Connect transmission line to the RF termination input.
--- NOTE ---
Connection of the transmission line to the RF input connector should be performed carefully to prevent
damage to the mounting studs. Avoid any bending or shearing stress to the RF input connector studs.
--- The RF Test Load DL-10K-FM is now ready for operation ---

Page 5 of 12 KINTRONIC LABS INC. ISO 9001:2015(E) QUALITY MANAGEMENT SYSTEM QP-835-083 Rev. A 2019-02-11
MAILING ADDRESS:PO Box 845, Bristol, TN 37621-0845
SHIPPING ADDRESS: 144 Pleasant Grove Rd., Bluff City, TN 37681
PHONE: [phone] e-mail: [e-mail] website: www.kintronic.com
OPERATION
1. Check that installation requirements were properly carried out, particularly with regards to the
following:
a. Be sure that there is no obstruction to air flow at both intake and exhaust grating.
b. Be sure that there exists an electrical ground to unit frame which is separate from ac power
line ground.
*** CAUTION ***
THE INTERLOCK SHOULD BE PROPERLY
CONNECTED TO RF POWER SOURCE TO PREVENT
DAMAGE IN THE EVENT OF MALFUNCTION
2. Connect ac power source of transmitter to interlock receptacle so that RF output will be disabled in
event of malfunction. Normal condition (safe) is AB closed, and in a fault condition AB is open.
3. Connect transmitter RF cable to load RF input. If necessary, provide support to prevent any shearing or
bending stress to connector.
*** CAUTION ***
DO NOT APPLY RF TO LOAD
UNLESS FAN IS RUNNING
4. Apply AC power to fan by moving the switch to ON. The pilot light should illuminate and the fan should
start.
5. Check that air is flowing freely into and out of the gratings.
6. While performing the following steps, be sure that transmitter power output, including modulation,
does not exceed 10 kW continuous.
*** WARNING ***
VERTICAL CABINET HOUSING WILL BECOME
HOT DURING OPERATION –DO NOT TOUCH
7. Apply power to the transmitter and proceed with normal operation.
8. To discontinue operation:
a. Shut down transmitter.
b. Allow fan to run until exhaust air is close to ambient temperature.
c. Move load power switch to OFF.