20
Watlow Series 935B User’s Manual
Key Lockout Information
The Series 935B offers three different security, or “lockout,” options. Set up
one or all three lockout options in the Configuration Menu.
•
Front Panel Lock
[`FPL]
uses an input for an external hardware switch;
it requires wiring, see p. 25. Choose Front Panel Lock
[`FPL]
from the
[`rts]
choices.
•
Choose Set Point Lock
[SLOC]
as the simplest lockout option. It locks
the Primary Set Point from change, but not from view.
•
Choose the Security Tag
[`tAG]
as a means of masking the Series
935B software menus from view. By selecting all or part of the four-digit
binary acronym,
[PCOA]
(Proportional / Configuration / Operation / Auto-
tune), you can choose to mask those items from view, and therefore from
change. For example: In the Configuration Menu
[`tAG]
set-up, if you
can see the P, the operator cannot see the PID menu.
• Exceptions to
[PCOA] [`tAG]
are:
“C” does not lock out
[`tAG]
.
“O” does not lock out
[CnFG]
.
Configuration Menu
[``In]
Input Type
[`C_F]
Celsius/Fahrenheit
[``rL]
Input Range Low
[``rh]
Input Range High
[`Ot1]
✓
Output 1 Function
[`Ot2]
Output 2 Function
[`rts]
Remote Timer Start
[dISP]
Display Default
[ALty]
Alarm Type
[AhYS]
Alarm Hysteresis
[`LAt]
Alarm Latch
[`SIL]
Alarm Silencing
[FAIL]
Failure Mode
[tIM]
Timer Function
[Strt]
Start Timer
[`rdY]
Timer Ready Band
[``St]
Signal Time
[SLOC]
✓
Set Point Lockout
[`tAG]
✓
Lockout Tag
Using Lockout Functions
