Did you attentively read a manual from Karl-Heinz?He has explained everything concerning measurements of small capacitors in the automatic mode!
"23.Capacitors with value below 25pF are usually not detectet, but can be measured together with
a parallel diode or a parallel capacitor with at least 25pF. In this case you must subtract the
capacity value of the parallel connected part. For processors with at least 32K flash memory
the tester changeover to a special capacity meter function, if a capacitor with more than 25pF
is once measured at TP1 and TP3. In this capacitor meter mode you can measure capacitors
below 25pF at TP1 and TP3 directly."
"In the same way the tester changes to a capacity
meter function, if a capacitor is detected at TP1 and TP3. This operation mode is indicated
with a [C] at the right side of the first display line. With this capacity meter function capacity
values are shown down to 1pF. Only for the automatic start you need a capacitor with more
than 25pF. Both special modes can be finished by a key press. The tester will then continue
with the normal tester function."
For menu function "Capacitor meter 1-3":
"Capacitor meter with the 1-3 symbol the tester changes to a capacitor meter function at TP1
and TP3. This operation mode will be marked with a [C] at the right side of the first display
line. With this operation mode capacitors from 1pF up to 100mF can be measured. In this
operation mode the measurement is repeated without key press. With a key press the tester
finish this operation mode and returns to the menu. In the same way as with resistors, the
tester changes automatically to the capacitor meter function, if a capacitor between TP1 and
TP3 is measured with the normal tester function. After a automatically start of the capacitor
meter function the tester returns with a key press to the normal tester function."