Hanna Instruments HI520 - Math Channel Measurement; Sequential Control; Outputs

49 Sequential Control
8.2. MATH CHANNEL MEASUREMENT
From measurement screen, use
ud keys to display result of configured math function.
Difference:
Math
Б
2.543
mS/cm
Measure EC
Ratio:
Math
Б
199.4
Measure EC
% Passage:
Math
Б
212.9
%
Measure EC
9. SEQUENTIAL CONTROL
HI520 operates a control‑loop system whereby users have the option to run channel control independently or
configure to be triggered sequentially upon reaching the other channel's set point(s) (1, 2, or both).
Navigation
• From Main Menu, use the
ud keys to select Sequential Control.
• With item highlighted, press Setup.
• Use the
ud keys to select channel control (CH1 or CH2).
• Press Modify followed by Select to configure channel control loop.
Independent – control runs independently and controller is converted to single channel mode
SetP1 – the control loop works when SetP1 is reached
SetP2 – the control loop works when SetP2 is reached
SetP1 & 2 – the control loop works when SetP1 and SetP2 are reached
Enable
b
Setup
Enable
b
Modify
Setup
Enable
u
d
Select
Enable
b
10. OUTPUTS
Navigation
•
From Main menu, press the ud keys to select Outputs. With Outputs selected, Setup virtual
key is visible.
• Press Setup to open a submenu structure that includes Relays and Analog Outputs.
Enable
b
Setup
u
d
• Press the ud keys to toggle between them and press Setup, to open the selected parameter.
• At prompt, enter the password.
•
At prompt, with the password enabled, press YES, to place unit in HOLD and start modifying parameters.