| PRODUCTS - SWR METER INSTRUCTION MANUAL |
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 SWR Meter Instruction Manual
How to use the SWR meter, SWR tuning using the SWR 3000
 | Instruction manual for the SWR 3000 analyzer with guidelines for SWR tuning.
This manual is also in the SWR 3000 catalogue which can be ordered by contacting PROCOM. |  | SEE ALSO: |
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1. Switch on the SWR meter
Press the button ON, and the instrument turns on.
Starting from "stand-by", the instrument will automatically start measuring with the latest entered frequency parameters (centre frequency and frequency span).
The instrument can be "reset" in the following way:
- by pressing the ON button for more than 5 seconds (power-on-reset)
- PLEASE NOTE: if the battery pack has been disconnected or totally discharged, the instrument must be reset as described above.
After a reset, the instrument will ask for a centre frequency and a frequency span before the measuring can be made.
Do NOT connect RF or DC to TEST PORT.
2. Entering a centre frequency
Press CENTER, and the SWR meter will ask for a new centre frequency. Enter the required frequency and press ENTER.
A new centre frequency can be entered at any time during the measuring. After entering a new centre frequency, you will be asked if you want to make a new calibration.
The centre frequency should be between 30 and 2700 MHz. If you enter an invalid centre frequency, you will automatically be asked for a new centre frequency. If the new centre frequency together with the previously entered frequency span cause that you operate outside the valid frequency range, the instrument will automatically ask for a new frequency span.
3. Entering a frequency span
Press SPAN and the SWR meter will ask for a new frequency span. Enter the required span and press ENTER.
A new frequency span can be entered at any time during measuring. After entering a new span you will be asked if you want to make a new calibration.
The frequency span should be 0 MHz or between 10 and 300 MHz. If an invalid frequency span is being entered, or a new frequency span together with the previously entered centre frequency cause that you operate outside the valid frequency range, the instrument will automatically ask for a new frequency span.
4. Calibration
After having entered the new frequency parameters you will automatically be asked, if you want to make a new calibration.
You can choose not to make a calibration by pressing ENTER, after which the instrument will start an uncalibrated measuring indicated by a "U" in the upper right corner.
If you want calibration press CAL. Then you will automatically be asked to remove the connectors at the test port. Press ENTER and the calibration will be carried out.
After calibration the measuring will start automatically (RUN mode). During measuring (in HOLD or RUN mode), you can go to the calibration routine by entering CAL. You will be asked if you want to make a new calibration. Subsequently, the procedure will continue as described above.
5. Measuring (RUN/HOLD mode)
After entering new frequency parameters and calibration, if any, the SWR meter will automatically go into RUN mode, i.e. measure the SWR by sweeping the specified frequency range.
The instrument will also automatically go into RUN mode when turned on from "stand-by".
If you press HOLD/RUN from RUN mode, the instrument will go in HOLD mode, i.e. the SWR curve will be "frozen" and the marker function will start.
In RUN mode, the instrument will automatically go to HOLD mode after 60 seconds if no buttons are activated.
A frequency marker will be shown in HOLD mode, and it can be guided over the frequency range by turning the button MARKER. The frequency of the marker can be read to the right, just above the frequency axis. When using the frequency marker, you can e.g. identify the exact resonance frequency.
The instrument will automatically be turned off (go into "stand-by" mode) after 60 seconds in the HOLD mode if no buttons are activated.
6. Charging of the battery pack using the AC-adapter
The internal battery pack may be charged using the AC-adapter supplied. The output plug of the AC-adapter is connected to the socket situated on the right side of the instrument. The AC-adapter should be connected to a mains voltage of 230 VAC.
The battery pack may be charged as required. The built in NPC charger (Negative Pulse Conditioning charger) ensures that the battery pack is not damaged by long term charging or by the so-called memory effect should a partly discharged battery pack be recharged.
Charging time to achieve full capacity is approximately 6 hours. A fully charged battery will have a life of 5 hours with normal use (at 50% sweep, 50% hold).
PLEASE NOTE that the SWR meter MAY BE USED DURING CHARGING. Also the AC-adapter CAN BE PERMANENTLY CONNECTED if required.
An external power supply of 13.6 VDC may also be used to run the instrument. However, please note that 16-18 VDC is required to ensure simultaneous charging of the battery pack.
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