Thermo Scientific Alpha pH 800, Руководство пользователя

Страница: 28 / 44

21
7.3.3 Choosing High or Low set points
Select a “lo” to activate relay when the pH/ORP value undershoots the set point;
select a “Hi” to activate relay when the value overshoots the set point. Using
both SP1 and SP2, the following configuration for the set points can be selected:
lo/lo, lo/hi, hi/lo, or hi/hi.
1) Follow directions in 7.3.1 to enter Control Relay mode.
2) Press ENTER key until upper display shows Lo or Hi and lower display
shows SP1 (SP2).
3) Press
Δ
or
∇
keys to select low (lo) or high (hi) set point for SP1 (SP2).
4) Press ENTER key to confirm.
5) Proceed to 7.3.4 step 3 , or return Measurement mode by pressing
Δ
and
∇
keys simultaneously (escape).