48

H7CX-R

@-N

Key Protect Level

When the key-protect switch is set to ON, it is possible to prevent setting errors by prohibiting the use of certain operation keys by specifying the

key protect level (KP-1 to KP-7). The key protect level is set in the function setting mode. The key protect indicator is lit when the key-protect switch

is ON.

* Changing mode to DIP switch monitor mode or function setting mode.

Self-diagnostic Function

The following displays will appear if an error occurs.

*1. This includes times when the life of the EEPROM has expired.

*2. Occurs when the measurement value reaches 999,999.

*3. Display flashes (1-second cycles).

*4. The normal display and

e3 will appear alternately.

When the Hold Key is pressed,

e3 will not be displayed even if the alarm set value is exceeded. (Monitoring is possible, however, because the counter will continue

without clearing the output ON count.)

Level

Meaning

Details

Changing mode*

Switching display

during operation

Hold Key

Up Key

KP-1

(default setting)

Invalid

Valid

Valid

Valid

KP-2

Invalid

Valid

Invalid

Valid

KP-3

Invalid

Valid

Valid

Invalid

KP-4

Invalid

Valid

Invalid

Invalid

KP-5

Invalid

Invalid

Invalid

Invalid

KP-6

Invalid

Invalid

Valid

Valid

KP-7

Invalid

Invalid

Invalid

Valid

Main display

Sub-display

Error

Output status

Correction method

Set value after

reset

No change

Measurement value overflow*2

No change

Measurement value

≤ 999999

No change

e1

Not lit

CPU

OFF

Either press the hold key or reset the

power supply.

No change

e2

Not lit

Memory error (RAM)

OFF

Turn ON the power again.

No change

e2

sum

Memory error (EEP)*1

OFF

Hold Key

Factory setting

No change

Output Counter Overflow

No change

Hold Key

No change

Key protect indicator

*Factory-set to OFF

ON

(Enable)

OFF

(Disable)

*