CM4001 (V1.03 or later)

How to switch

1. power ON while pressing the backlight key and RANGE key
2. HID ON/OFF switching each time the MAX/MIN key is pressed.
3. press HOLD key to confirm
   Automatic power off

How to check

1. power ON while pressing the backlight key and RANGE key Press the power key to turn off the power.

How to check the version

1. hold down the MAX/MIN and RANGE keys while turning the power ON
2. check the version numbers that appear sequentially on the screen
   . "4001" → "vEr." → "v1.0x" → LCD all lights on Press the power key to turn off the power.

CM4002, CM4003

How to switch

How to check

1. power ON while pressing HOLD key and HOLD key Press the power key to turn off the power.

FT-6031-50 (V1.02 or later)

How to switch

How to check

1. power ON while pressing 3P/2P key Press the power key to turn off the power.

How to check the version

1. hold down the Fn key and the COMP key, and turn the power ON Press the 0Ω ADJ key when "vEr" appears on the screen.
2. check the version numbers that appear sequentially on the screen
   "v1.0x" ↔ "6031" Press the power key to turn off the power.

FT6380-50

How to switch

How to check

1. hold down the A/Ω key and turn the power ON Press the power key to turn off the power.

PD3259-50

How to switch

1. hold down the HOLD key and the Fn key while turning the power ON Press the Fn key. Press HOLD key and Fn key for more than 1 second Each time the HOLD key is pressed, HID ON/OFF switching is performed.
2. press Fn key to confirm
   . Automatic power off

How to check

1. hold down the HOLD key and the Fn key while turning the power ON Press the Fn key. Press HOLD key and Fn key for more than 1 second Press the power key to turn off the power.

IR4052-50, IR4057-50

How to switch

1. power ON while pressing RELEASE key Press RELEASE key for more than 3 seconds. HID ON/OFF switching each time the COMP key is pressed.
2. press RELEASE key to confirm
   . Automatic power off

How to check

1. power ON while pressing RELEASE key Press RELEASE key for more than 3 seconds. Set the rotary switch to the OFF position to turn off the power.

BT3554-50

How to switch

1. turn the power ON while pressing the comparator buzzer key HID ON/OFF to/from each time the arrow key is pressed. Press ENTER key to confirm. Press the power key to turn off the power.

How to check

1. turn the power ON while pressing the comparator buzzer key Press the power key to turn off the power.

DT4261

How to switch

How to check

While holding down the RANGE key, turn the rotary switch to the Ω position (5th from OFF) and turn the power ON. 2. release key to switch to measurement screen

cm4371-50, cm4373-50, cm4375-50

How to switch

How to check

1. while holding down the RANGE key, turn the rotary switch to the NCV function (A+V position for CM4375-50, 5th from OFF) and power ON
2. release key to switch to measurement screen

CM4141-50

How to switch

How to check

1. while holding down the RANGE key, turn the rotary switch to the TEMP position (5th from OFF) and power ON
2. release key to switch to measurement screen

CM3286-50

How to switch

How to check

1. while holding down the Fn key, turn the rotary switch to the Phase Detect position (5th from OFF) and turn the power ON
2. release key to switch to measurement screen