Hanna Instruments HI6421 User Manual

39 Measurement & Probe Setup Menu
9. MEASUREMENT & PROBE SETUP MENU
From the Measurement screen, tap to access system and measurement configuration tabs.
Alternatively, tap
(Menu key) then .
ATC
°C
25.0
[M]mmHg
760.0
ppm
8.74
DO
Hanna_01
Stable
Admin
1%
12:40:12 10/01/2023
9.1. CALIBRATION
Options: Last Calibration, Standard Entry Type, Calibration Reminder, User Pressure Calibration
Last Calibration: calibrate or clear a previous calibration
Standard Entry Type
• Automatic: meter selects the closest calibration standard value to that of the sample being measured
• Manual: user selects the standard to be used for calibration
Calibration Reminder
• Disabled
• Daily‑calibration interval (hours and minutes)
• Periodic‑calibration interval (days, hours, minutes)
“Calibrate probe” message is displayed if calibration is not done within set interval.
User Pressure Calibration: option available with Pressure Source set to Automatic (under Reading tab)

Hanna Instruments HI6421 Specifications

General

Brand	Hanna Instruments
Model	HI6421
Category	Measuring Instruments
Language	English