Low Dose rate Interlock

Error:Terminate on Low Dose Rate Interlock.

The actual value of the dose rate from channel one Item 244 is stored in part 134 of the same item. A software algorithm calculates the limits. A beam will be terminated within 5 seconds if the dose rate drops below 60% of the value entered in part 134.

Since release 3.1: After changing value of item 244 and SCB, delete patient and select again. Otherwise the change will not be implemented.

Since release 3.1 item 238 ``def nom PRF'' has become more important. This item has become a smart item which may have an effect on your dose rate. If you choose 400 PRF in part 1 of item 244 and part 1 of item 238 is also at 400 your output may be half the value you expect it to be. This will happen when part 4 of item 244 is closer to 400 than to 60. If so turn part 1 of item 238 into 600. Do the same for part 1 of item 244. Reload the energy.

Investigate why dose rate differs from the past. (old value part 134)