Hardy Process Solutions HI 2160RC PLUS, Operation And Installation Manual

Page: 134 / 220

TUNING/CONTROL MENU
CTL. OUT LO (%)
CTL. OUT HI (%)
AVRG. (1 -200)
26
100
200
Chapter 6 - Setup
6-43
FIG. 6-37 TUNING/CONTROL MENU/ SETTING CONTROL OUT LO
PERCENTAGE TO 26
Step 21. Press the Enter button to accept the new value.
Step 22. The operator cannot set a flow rate lower than the 26% of full
span which equates to 3.6 lbs/m in our example. If a flow rate
is entered lower than 3.6 lbs/m an error statement appears
“SETTING TOO LOW”.
Step 23. Press the down arrow
↓
button until the cursor is to the left of
the Control Out HI% Sub-Menu. (See Fig. 6-38)
Setting Control Out
HI% • The Default Setting is 100%.
• In almost every application there is no requirement to change the
default setting. However, in cases where flow levels off when the
output signal reaches a certain percentage of the operating span, or
when equipment damage might occur (e.g. cavitation in pumps)
when rates are set above the Control Out HI%, it is recommended
the Control Out HI% be set. The Control Out HI% is a high operat-
ing limit where higher settings are not allowed.
Step 1. To establish what the Control Out HI% setting should be, a
graph indicating the flow rate and output percentage (OP%)
must be prepared. This graph shows the operating characteris-
tics of a particular application.
Step 2. Click on the Set Pt. button.
Step 3. Enter the Security Code Number.
Step 4. Press the Enter button. The Set Point menu appears.
Step 5. Set Rate to Manual.