360077-1/O
38
i.Series® - All Models
6
Access Level 4 parameters:
a
Navigate to Level 3 program mode.
b
Select the “UEr” parameter.
c
Press and hold the
UP
and
DOWN
buttons simultaneously for approximately 10 seconds.
d
The “LOCK” parameter flashes on the display.
7
Exit program mode:
a
Press and hold the
UP
and
DOWN
arrow buttons simultaneously for approximately three
seconds, or
b
the current chamber temperature is displayed.
9.1
Level 1 Parameters and Values
NOTE
►
Parameters are listed in order of appearance.
►
The temperature controller is programmed at the factory with a refrigerator setpoint of
4.0 °C.
Parameter
Description
Default Value
Autotune selection
oFF
SP1 proportional band (gain) or hysteresis (in °C)
iLR111 / iPR111 models: 1.5
All other models: 4.0
SP1 integral time/reset (in minutes)
oFF
SP1 derivative time/rate
oFF
SP1 derivative approach control
0.5
SP1 mode selection (ON/OFF or proportional cycle-time)
on.oF
SP1 offset (manual reset)
0.0
Lock main setpoint
oFF
Ramp rate (if ramp is on)
0
Ramp selection
oFF
Soak time selection
--
SP2 low alarm setpoint (in °C)
0.0
SP2 high alarm setpoint (in °C)
0.0
SP2 hysteresis or proportional band (in °C)
0.1
SP2 mode selection (ON/OFF or proportional cycle-time)
on.oF
Parameter level currently selected
1