Enraf Nonius Radarmed 650, Service Manual

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Enraf-Nonius B.V. Radarmed 650 Service Manual 1409773
Maintenance January 2000
4-7
These connections are used for rough setting of the maximum output power
If the output power level is not reached, plug the voltage selector jumper onto the next
highest high-voltage tapping (see above), switch off the H.F. power first !!!.
If the output power level is exceeded, plug the voltage selector jumper onto the next lower
high-voltage tapping (see above), switch off the H.F. power first !!!.
When the nearest value is found the current can be fine-adjusted by means of adjusting
resistor R2. Fine-adjustment is done by moving the slide over the wire wound resistor.
Before moving the slide loosen the screw which fixes the slide to the resistor.
Note: When adjusting resistor R2 the slide must be at least ¾ to the left of the total
length of the resistor body.
Warning: Be careful, high voltage (!! 230V with respect to ground !!) is present at
the slide of the resistor.
Set the unit to maximal H.F. output power and check that the unit reaches maximal power
(150 W). If the unit does not reach the maximum output power, readjust the unit as above.
The adjustment is now completed, switch off the equipment.