8
① Power switch（refer to page 22）
By sliding this switch to the ON position, power is applied to the
HT-5200. When you release your finger, power is switched off. If
you slide the switch to the HOLD position, it will lock in the on
condition even when you remove your finger.
② Display
This display provides a direct reading of the measured values in
all modes.
③ Detection section
This light projector-receiver is used in detected light reflected from
the reflected mark（i.e., the rpm signal.）
④ UNIT switch（refer to page 20 through 22）
Each time this switch is pressed, the measurement unit changes in
the sequence r/min → r/s → m/min → count → period (ms).
⑤ MODE switch（refer to page 22）
This switch is pressed to switch between the MAX and MIN modes
in the sequence（NORMAL）→ MAX → MIN（in the NOR-
MAL mode there is no display）.
r/min
r/s
m/min
COUNT
PERIOD
ms
MIN
r/min
MAX
r/min
r/min
