Hach POLYMETRON 8362 User Manual page 54

Transmitter 9135 - pH measurement in pure water
CONTROLLER
CNTRLLR : Yes
MODE : Freq.
POINT : 7.00 pH
NEUT. Z. : 2.0 pH
INERTIA : 000 s
CTL. TIME : 20 mn
RELAY S1
RELAY S2
MANUAL MODE
Select
Page 50
Different controller modes are available. They enable a
frequency, a pulse or a mixed pulse/frequency control.
Relay S1 (base injection) and relay S2 (acid injection)
ensure the control. The controller
programmable via the programming variables below.
CONTROLLER
−
Choice to use an integrated controller :
: • Yes
CNTRLLER
• No
−
Choice of the control mode :
• Pulse
MODE :
• Freq.
• Pul./Frq.
• Frq./Pul.
−
Value of the setpoint :
POINT : XXXX - In pH or mV
−
Neutral zone range : zone around the setpoint
where the regulation is not activated
NEUT Z. : XXX - In pH or mV
−
Reaction time after activating relays S1 or S2 :
delay time after executing the next period.
INERTIA : XXX – In s
−
Maximum time out of the neutral zone .After this
period and without returning into the neutral zone,
the system alarm "control too long" is activated.
CTL. TIME : XX – In mn
parameters are
S1 & S2 in pulse control
S1 & S2 in frequency
control
S1 in pulse control /S2
in frequency control
S1 in frequency control
/S2 in pulse control