TestEquity 123HS, Operation And Service Manual

Page: 47 / 53

Chapter 7 – Maintenance
TestEquity 123HS Temperature/Humidity Chamber Page 7-17
EZ-Zone Limit Controller Setup Parameters
! CAUTION: The EZ-Zone Limit Controller has been properly configured by TestEquity to
match the chamber’s system requirements. Improper modifications to these
setup values can result in erratic performance and unreliable operation. Do not
attempt to modify the setup values, unless you thoroughly understand what
you are doing. If there is any doubt, please call TestEquity before proceeding.
Setup Menu
Prompt Function Setting Alternate Setting
[~LoC]
Lockout Menu
[~~`2]
See NOTE 1 below
[~SEn]
Sensor Type
[`~tC]
Do Not Change
[~Lin]
Linearization
[~`~t]
Do Not Change
[~dEC]
Decimal
[```0]
Alt. “0.0”
[~C_F]
°
C or
°
F
[```C]
Alt. “F”
[`r;Lo]
Range Low
[`-42]
Do not make any lower
[~r;hi]
Range High
[`180]
Do not make any higher
[~Fn2]
Output 2 Function
[LiM]
Do Not Change
[`L;Sd]
Limit Sides
[both]
Alt. “high” (High only) or “LoW” (Low only)
[~L;hY]
Limit Hysteresis
[~~`2]
Change not recommended
[`A;ty]
Alarm Type
[~oFF]
Do Not Change
[PAr1]
Upper Display
[ACPu]
Alt. “none”
[PAr2]
Lower Display
[~Lst]
Alt. “Lh.s” (High Set Point) or “LL.S” (Low Set Point)
[`ad;s]
Zone Address
[~~`1]
Not functional for this application
NOTE 1: The Lockout Menu
[~LoC]
sets the security clearance level as follows:
[~~`1]
Operations Menu, read only
[~~`2]
Operations Menu, set point read/write
[~~`3]
Operations Menu, set point read or write (same as level 2)
[~~`4]
Operations Menu, full access read/write (required to access Calibration Offset below)
[~~`5]
Operations Menu and Setup Menu full access (required to access Setup Menu and
Calibration Offset below)
Operations Menu
Prompt Function Setting Alternate Setting
[~LLs]
Low Set Point
[~-42]
Appropriate Low Limit Set Point
[~Lhs]
High Set Point
[~180]
Appropriate High Limit Set Point
[~iCA]
Calibration Offset
[~~~0]
Calibration Offset as required (see NOTE 2 below)
NOTE 2: LoC parameter in Setup Menu must be set for 4 or 5 to access the Calibration Offset
parameter.