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Setup menu (cont.) – Watlow EZ-ZONE PM Express Limit User Manual

Page 27

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EZ-ZONE PM Limit Express

• 27 •

Setup Menu

Setup Menu (cont.)

Display

Parameter Name Description

Range (

Defaults are shown bold)

[`r;hi]

[ r.hi]

Limit Set Point - Range High

Sets the high limit of the set point adjust-

ment using a T/C and RTD; scales for

process inputs.

Appears if: Always.

-1,999.00 to 9,999.000 °F or Units
-1,110.555 to 5,555.000 °C

[`fn1]

[ fn1]

Function of Output 1

Select which function will drive this output.

Appears if: Always.

[`oFF]

Off, [LiM] Limit*, [ALM] Alarm

*Note:

Switched DC/Open Collector option should only be used to control an external mechanical relay if Limit

function is selected.

[`fn2]

[ fn2]

Function of Output 2

Select which function will drive this output.

Appears if: Always.

[`LiM]

Limit

Note:

Output 2 (only) is FM approved as a limit.

[`L;Sd]

[ L.Sd]

Limit Sides

Select which side or sides of the process

value will be monitored.

Appears if: Always.

[both]

Both

[high]

High

[LoW]

Low

[`L;hy]

[ L.hy]

Limit Hysteresis

Set the hysteresis for the limit function. This

determines how far into the safe range the

process value must move before the limit

turns the output back on.

Appears if: Always.

0.001 to 9,999.0°F or units
0.001 to 5,555.0°C
Units, 3.0°F or 2°C

[`A;ty]

[ A.ty]

Alarm Type

Select how the alarm will or will not track

the set point.

Appears if: Always.

[`oFF]

Off

[PR;AL]

Process Alarm

[`A;hy]

[ A.hy]

Alarm Hysteresis

Set the hysteresis for an alarm. This deter-

mines how far into the safe region the pro-

cess value needs to move before the alarm

can be cleared.

Appears if: When alarm type is set to process.

0.001 to 9,999.000°F or units
0.001 to 5,555.000°C
Units, 1.0°F or 1.0°C

[a;lg]
[A.Lg]

Alarm Logic

Select what the output condition will be dur-

ing the alarm state.

Appears if: Always

[`a;lC]

Close on Alarm

[`a;lo]

Open on alarm