Bosch MMD 540H Instruction Manual page 22

MMD 540H Hybrid Multimeter | Meter Functions | 21
Meter Functions – Dwell (
Ñ
Select the "DWELL" function
with the rotary switch.
Insert:
Ñ
Black lead in COM terminal.
Ñ
Red lead in V-Ω-RPM terminal.
Connect the Black test probe to
ground.
Connect the Red test probe to
the wire that connects to the
breaker points (see illustration).
MMD 540H Instruction Manual | Version 1 | February 2008
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)
Black–
To breaker
Points
Robert Bosch LLC
Red+