Program Mode - Thermo Scientific PLUS Series Installation And Operation Manual

Thermo Scientific Revco PLUS Upright Freezers

8.7 Program Mode

You can use Program Mode to display and adjust various parameters, including the bracket used for Revco Value
CAUTION!
Do not change the values of Program Mode parameters without consulting Technical Service. Shutdown and/or
damage to the freezer could result from improper setting of parameters.
To enter Program Mode, press the Cabinet Temperature pad and hold for 5 seconds. "Prg" will be displayed until you release the pad.
In Program Mode, parameter labels and values are displayed instead of cabinet temperature. The display advances to the next item after
a 1.5 second timeout, or when you press the Cabinet Temperature pad.
After 10 seconds of inactivity at any point in the session, Program Mode is deactivated and the cabinet temperature is displayed again.
Table 1. Program Mode Parameters
Parameter
Revision
Offset
Time Delay
BUS Type
BUS Setpoint
Alarm setpoint bracket
Lifeguard
Revco
PLUS
Models
Display
(U=Ultima
E=Elite,
V=Value)
Displays micro firmware revision in
U, E, V
MMmm format.
"OFF" then "SET" , followed by offset
U, E, V
value.
U, E, V "tI" then "dLy" , followed by value.
Displays backup system type only
U, E, V
when a backup system is detected.
Setpoint value in display (only when a
U, E, V
backup system is detected).
Value of alarm bracket (deviation from
V only
setpoint) shown in main display.
U only Displays Lifeguard value.
Installation and Operation
Notes
Display only: "Er06" error if firmware integrity test fails.
Offset for calibration: do not adjust without consulting
Technical Service. Adjustable using
value is 0; range is -10ºC to 7ºC.
Value displayed in minutes, in steps of one tenth of a minute.
Default is 0.0; range is 0.0 to 20.0. Adjustable using
This feature may be used to stagger restart times in case
you have multiple freezers.
Display only. Use and to toggle between the values
"Ln2" and "co2" . Changing this value automatically changes
the default setpoint.
Adjustable using and . LN
2
range is -0ºC to -65ºC;
Use and to select value 5, 10, 15, or 20ºC. Default
value is 10.
Adjustable using and . Default value is 94ºC; range is
70ºC to 98ºC.
alarm settings.
PLUS
and . Default
and
range is -0ºC to -76ºC; C0
2
7