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Hys2] [sp2c, Setup-output, Hysteresis 2 – Watlow Series 988 User Manual

Page 49: Set point 2 control

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4.22

WATLOW Series 988 User’s Manual

Setup Menus, Chapter 4

Setup-Output

Hysteresis 2

Select the switching hysteresis for output 2. This determines the
change in temperature or process units needed to turn the output from off
to on.

• If [`AL2] is set to [rAtE] settings for [HYS2] will be in degrees per

minute or units per minute.

• If the input referenced by [`AL2] is set to [`r†d] the range is affected as

listed below.

[HYS2] This prompt appears only on controllers equipped with output 2
hardware and with the controller set up as an on/off controller ([Pb2A} =
[```0]), and with [`Ot2] not set to [``no]. This prompt does not appear
on controllers equipped with output 2 process hardware, ([`In2} = [sLid],
or if [ALg0} in the Global menu = [dUPL]).

If

Default

[``°F]

[```1]

[```3]

[`999]

[`C_F]

[HYS2]

[HYS2]

[HYS2]

(Global Menu)

[``°F]

&

[`r†d]

[``)1]

[``#0]

[`9(9]

[`C_F]

Input 1 or 2

[HYS2]

[HYS2]

[HYS2]

(Global Menu)

(see note above)

[``°C]

[```1]

[```2]

[`555]

[`C_F]

[HYS2][

HYS2]

[HYS2]

(Global Menu)

[``°C]

&

[`r†d]

[``)1]

[``@0]

[`5%5]

[`C_F]

Input 1 or 2

[HYS2]

[HYS2]

[HYS2]

(Global Menu)

(see note above)

[```1]

[```3]

[`999]

units

a process input

[HYS2]

[HYS2]

[HYS2]

is selected

Set Point 2 Control

Select a second set point.

• [``Pr] enables a set point independent from the Set Point 1 [`SP1]

value.

• [``dE] enables a set point at a deviation from the Set Point 1 [`SP1]

value.

[Prc1] This prompt appears only if output 2 hardware is present and is
equal to the output 1 setting.

Default

[``Pr]

[``dE]

[SPc2]

[SPc2]

[HYS2]

[SP2c]