4-36
Menu Program Functions
µ
P-D Controller
CSR-20 & CSR-40, September 1999
Menu Program Functions
NOTE: When the unit is OFF, the following options
default to OFF after 48 hours (v11.71 to 11.73 soft-
ware) or 96 hours (v11.74 and above software): Bulb
Mode, Dehumidify, Economy Mode, Humidify, Pulp
Mode and USDA Mode.
The Program Menu allows technicians to set specific control
functions.
•
Turn the unit On-Off switch ON or operate controller
using battery power.
•
Press the SELECT key to enter menu (display shows
“MENU <--->”.
•
Press DOWN key until display shows “MENU PRGRM”.
•
Press the SELECT key to enter PRGRM submenu (dis-
play shows “PRGRM <--->”).
•
Press and hold the SELECT key for 3 seconds to return to
the Standard Display.
Program Menu List
<--->
Top of menu
USDA USDA sensor recording (3 or 4 sensors) On/Off
USDA1 Spare 1 sensor On/Off
USDA2 Spare 2 sensor On/Off
USDA3 Spare 3 sensor On/Off
PULP
Pulp recording On/Off
ECON Economy mode On/Off
HUM
Dehumidify or Humidify On/Off
– HUMSP = Enter Humidity setpoint (50% to 100%)
BULB
Bulb mode On/Off
– BDFTT = Enter Bulb mode defrost termination
temperature
– BEFAN = Enter Bulb mode evaporator fan speed
(high, low or cycle)
PWRED Power Reduction 1, 2 or 3
USDA Sensors
Changing the USDA program screen from OFF to ON acti-
vates spare sensors 1, 2 and 3 for USDA Cold Treatment
Temperature Recording. USDA sensor temperatures are
recorded in the data logger memory.
The USDA sensors should be connected to the controller
and located in the load as shown in USDA directives. When a
USDA sensor is installed, the controller will automatically
detect the sensors and activate data logging. The controller
Program menu shows the USDA sensor number in the left dis-
play and “AUTO” in the right display if data logging is active.
However, the USDA program screen MUST be set to ON and
each USDA sensor MUST be calibrated to comply with USDA
temperature recording requirements. Calibrate the sensors in
an ice bath. The
µ
P-D controller requires a USDA sensor, P/N
41-3107.
Ice Bath Preparation
1.
The ice bath should consists of an insulated container full
of ice made from distilled water with enough distilled
water added to cover the top of the ice during the test. A
properly filled ice bath should be completely filled with
ice all the way to the bottom of the container.
2.
Stir the ice bath briskly for one minute before proceeding.
3.
Insert the USDA sensors in the ice bath. Wait 5 minutes to
allow the sensor temperatures to stabilize at 0 C (32 F).
4.
Stir the ice bath frequently while testing and verify ice
bath temperature with a mercury-in-glass thermometer.
Stirring 10 seconds every 3 minutes during the test proce-
dure is adequate.
MENU PROGRAM Screen Flow Diagram (See Display Acronym Definitions on pages 4-4 to 4-6)
