If you see -cal or -E errors the balance thinks there's not enough weight on it. This can happen if you power it up with something on the pan and then remove the object and try to re zero or calibrate as the balance uses the initial zero at power on as the reference for the weight of the empty pan.
Make sure the pan is installed ok but nothing else is on it, then power cycle the balance and let it initialize. Once it turns on and reads zero see if it will weigh your cal weight before going into calibration mode, it should read close to 100g even without calibration.
You should let it soak in the same temp environment powered up for about 30 minutes before trying to calibrate it.
Also, you really will not feel or see the pan move on these, so don't go pressing on it expecting to feel it move.