TestEquity 123H, Руководство по эксплуатации и обслуживанию

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Chapter 4 – F4 Temperature/Humidity Controller
Page 4-12 TestEquity 123H Temperature/Humidity Chamber
Profile Programming
The Series F4 Controller can be programmed to store up to 256 steps into as many as 10 profiles.
You do not need a computer to enter a profile – it can be easily done through the controller’s
front panel keys. A Profile is a set of instructions programmed as a sequence of steps. The
controller handles the profile steps automatically, in sequence. As many as 40 different profiles
and a total of 256 steps can be stored in non-volatile memory. The 256 steps are grouped by
profile. So, one profile could have 256 steps; or 39 profiles could have 6 steps and one could
have 22; or 32 profiles could have eight steps each. The maximum number of steps is 256, and
the maximum number of profiles is 40.
Step Types
Use the five available step types – Autostart, Ramp Time, Soak, Jump and End – to create simple
or complex profiles involving all inputs and outputs. The Series F4 prompts you to define each
step’s properties.
Autostart Step
The use of an Autostart step in a profile is optional. Autostart pauses a profile until the specified
date or day, and time (of a 24-hour-clock). Define the Autostart by choosing:
•
Day (of the week) or Date,
•
Time
To invoke an Autostart step in a profile, you must activate the profile via the Profile Key and
select the Autostart step.
Ramp Time Step
Ramp Time changes the set point to a new value in a chosen period of time. Define the Ramp
Time step by choosing:
•
*Wait for an event or process value
•
Event outputs 1 through 7 to turn ON or OFF (For controlling the chamber functions or
power to remote devices).
•
Time (in hours, minutes and seconds)
•
Temperature Set Point
•
PID set (One of five sets of PID parameters for Ch1 and Ch2. Normally, just leave Ch1 at
PID Set 1 and Ch2 at PID Set 6.)
•
**Guaranteed Soak
Soak Step
Soak maintains the set point from the previous step for a chosen time in hours, minutes and
seconds. Define the Soak step by choosing:
•
*Wait for an event or process value
•
Event outputs 1 through 7 to turn ON or OFF (For controlling the chamber functions or
power to remote devices).
•
Time
•
PID set (One of five sets of PID parameters for Ch1 and Ch2. Normally, just leave Ch1 at
PID Set 1 and Ch2 at PID Set 6.)
•
**Guaranteed Soak