Apera EC400S User Manual

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⑩ — M+— Data storage; RM— Recall saved data
⑪ — Temperature and reminder icons
⑫ — ATC—Auto Temperature Compensation; MTC— Manual Temperature Compensation
⑬ — Stable reading icon
⑭ — Completed calibration icons
⑮ — Auto-Lock reading mode
⑯ — Low battery reminder. Please replace batteries when this icon is displayed.
⑰ — USB data communication. The meter is connected to your PC when this icon is displayed.
Keypad
3.2.1 Short Press — <1.5 s；Long Press — >1.5 s 。
3.2.2 Power On: Short press to power on: LCD displays the measuring mode used last time (Backlight turned
on for 1 minute).
3.2.3 Power Off: The meter can only be turned off in measuring mode by short pressing
Special Notes: Pressing in calibration mode or parameter setting mode will NOT turn the meter off.
Users need to press first to go back to measuring mode, and then press to power off.
Table- 1 Keypad Operation and Functions
Keypad
Operation
Functions
Short Press
 Power on/off
Short Press
 Choose measuring mode:
 PH400S pH Meter: →
 PC400S pH/Cond. Meter: → →
 EC400S Cond. Meter: N/A
Long Press
 Enter parameter setting
Figure-1

Apera EC400S Specifications

General

Brand	Apera
Model	EC400S
Category	Measuring Instruments
Language	English