Konica Minolta CR-400 Instruction Manual page 26

[Operating Procedure]
1 Turn the power switch to OFF (O) and open the battery
chamber cover on the side of the measuring head.
Do not touch the boot switch under any circumstances as this
will erase programs and data and cause circuit malfunctions.
Insert 4 AAA size batteries in accordance with the po-
2
larity indications shown in the battery chamber.
Notes on Use
3 Close the battery chamber cover.
24
Battery chamber cover
Boot switch
Battery chamber cover
– + – +
+ – + –