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Single loop display, Scanning display, Alarm display – Watlow 8LS Controller User Manual

Page 49

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Using the 8LS

8LS User’s Guide 41

The table below shows the status symbols for the Ramp and Soak
option.

If an acknowledged alarm exists, the Bar Graph is replaced by an alarm
symbol.

Press Back to see the Single Loop display.

Single Loop Display

This display shows the detailed information for one loop at a time.

Press the Back key to return to the Bar Graph display.

Scanning Display

Pressing both Yes and No arrow keys when you’re in Single Loop
display, activates the Scanning display.

In this mode, the controller will automatically step through the active
channels, showing the Single Loop display for each, for about a second.

Press any arrow key to return to the Single Loop display.

Alarm Display

The Alarm display is the same as the Single Loop display except the
alarm status is flashing.

Loop Status Symbol

Description

Loop Function

Loop Display

START

S

Ramp/Soak profile loaded, ready to start

RUN

R

Ramp/Soak profile is running

HOLD

H

Ramp/Soak profile is in hold

WAIT

W

Ramp/Soak loop is waiting for a trigger state to be

satisfied

TOLERANCE

ERROR

T

Ramp/Soak loop is out of tolerance and loop is in

hold

1

2

3

4

5

6

7

8

LOOP

PROCESS

UNITS

ALARM

SETPOINT

STATUS OUTPUT%

8

76

F

°

130 A100