Setting the countdown timer, Timer; setting – Watlow Series 935B User Manual

Page 32

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32

Watlow Series 935B User’s Manual

30

15

45

0

To Set Up the 935B Timer…

1. Plan a timer strategy.

2. Wire the Output 2 control output, associated

switching devices and annunciators. See p. 44-45.

3. Go to the 935B’s Configuration Menu

[CnFG]

.

4. Choose the Output 2

[`Ot2]

function as time;

hrs:min

[thM]

, or time; min:sec

[tMS]

.

5. Choose Remote Timer Start

[`rts]

to function as;

manual

[`off]

, or remote timer start

[tMr]

.

6. Choose a display default

[dISP]

(see page 18):

• Actual Temperature only

[``Ac]

• Actual; Set Point

[AcSP]

• Actual; Time

[Acti]

• Time; Actual

[tiAc]

• Time; Set Point

[tiSP]

7. Choose a Timer Output Function

[tIM]

:

• Delay ON

[dLon]

• Delay off

[dLoF]

• Signal ON

[sgon]

• Signal off

[sgoF]

8. Choose a start timer

[Strt]

function;

either immediate

[IMd]

, ready band

[`rdY]

,

Ready Acknowledge

[rdYA]

, or Power

[PWr]

.

9. If you chose

[`rdY]

or

[rdya]

,

then select a ready band

[`rdy]

value.

10. If you chose

[SGon]

or

[sgof]

,

then select a signal time

[``St]

value.

11. Go to the 935B’s Operation Menu.

12. Set the countdown time

[tMr]

.

13. Choose the idle set point

[IdLE]

to track

[trAc]

the primary set point, or select a separate
idle set point value between the range high

[``rh]

and range low

[``rL]

values.

14. Run the system, and test the timer start

with a

,

press or

[`rts]

signal.

15. Document the timer settings and system.

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

[tIM]

Timer Function

[Strt]

Start Timer

[`rdY]

Timer Ready Band

[``St]

Signal Time

Operations Menu

[`Aut]

Auto-tune

[tMr]

Countdown Timer

[IdLE]

Idle

Setting the Countdown Timer

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