Hello
I have a Laser Precision Corp laser power meter RT-150 and can't find squat on calibration or even a users manual. This is out of calibration (I hope), the sensor head has a multi turn pot and there are 2 more on the main board that are not labeled, that card just has some passives and two IC's one is an OP07 op-amp and the other part is a UA747 op-amp. It makes for a nice display item on a shelf but having it in calibration would be better. Any info would be helpful

Thanks
Draco