1592020670 XRi77CX-CH GB r1.1 15.10.2019
XRi77CX-CH
3/9
10.
FRONT PANEL AND COMMANDS
To display target set point; in programming mode it selects a parameter or
confirm an operation.
(
DEF
) To start a manual defrost.
(
UP
) To see the used parameter map. When in programming mode, it browses
the parameter codes or increases the displayed value.
(
DOWN
) To see the used parameter map. When in programming mode, it
browses the parameter codes or decreases the displayed value.
Keep it pressed 5 sec to change parameter map from “nt” to “Lt” and vice
-versa
(valid when button properly configured).
To switch the instrument on and off (when
onF=oFF
).
To switch on and off the light (when
oAx=LiG
).
KEY COMBINATIONS:
+
To lock & unlock the keyboard
+
To enter in programming mode
+
To exit the programming mode
10.1
USE OF LEDS
Icon functions are described in the following table:
LED
MODE FUNCTION
ON
Compressor enabled
Flashing Anti-short cycle delay enabled
ON
Defrost enabled
Flashing Drip time in progress
ON
Fans enabled
Flashing Fans delay after defrost in progress.
ON
An alarm is occurring
ON
A PULL DOWN is running
ON
Energy saving enabled
ON
Light on
ON
Auxiliary relay on
,
ON
Measurement unit
Flashing Programming phase
11.
MAX & MIN TEMPERATURE MEMORIZATION
11.1
HOW TO SEE THE MIN TEMPERATURE
1.
Press and release the
DOWN
button (if properly configurated).
2.
The “
Lo
” message will be displayed followed by the minimum temperature recorded.
3.
By pressing the
DOWN
button again or waiting for 5 sec the normal display will be restored.
11.2
HOW TO SEE THE MAX TEMPERATURE
1.
Press and release the
UP
button (if properly configurated).
2.
The “
Hi
” message will be displayed followed by the maximum temperature recorded.
3.
By pressing the
UP
button again or waiting for 5 sec the normal display will be restored.
11.3
HOW TO RESET THE MAX AND MIN TEMPERATURE RECORDED
1.
Keep
SET
button pressed for more than 3 sec while the max or min temperature is displayed.
(
“
rSt
”
message will be displayed)
2.
After confirming the operation,
the “
rSt
” message
will start blinking and then the normal
temperature will be displayed.
12.
MAIN FUNCTIONS
12.1
TO SET THE CURRENT TIME AND DAY (ONLY WITH RTC)
When the instrument is switched on, it could be required to set the real-time clock.
1.
Enter the Pr1 programming menu by keeping both
SET+DOWN
buttons pressed for 3 sec.
2.
Browse to the
rtC
menu and then push the
SET
key to enter the real time clock menu.
3.
The
Hur
(hour) parameter is displayed.
4.
Push the
SET
and set current hour by the
UP
and
DOWN
keys, then push
SET
to confirm the
value.
5.
Repeat the same operations with
Min
(minutes) and
dAy
(day) parameters and other
parameters.
To exit:
Push both
SET+UP
buttons or wait for 15 sec without pushing any button.
12.2
HOW TO SEE THE SET POINT
1.
Push and immediately release the
SET
key: the display will show the Set point value
2.
Push and immediately release the
SET
key or wait for 5 sec to display the probe value again
12.3
HOW TO CHANGE THE SET POINT
1.
Push the
SET
button for 3 sec to change the Set point value.
2.
The value of the set point will be displayed and the
°C
or
°F
icon will start blinking
3.
Use the
UP
or
DOWN
buttons to modify the current value
4.
Use the
SET
button to store the new value into memory
12.4
HOW TO START A MANUAL DEFROST
Keep the
DEF
button pressed for 3 sec to start a manual defrost.
12.5
HOW TO ENTER PARAMETER PROGRAMMING MENU
“PR1”
Follow these steps:
1.
Enter the Programming mode by pressing the
SET+DOWN
buttons for 3 sec (the
°C
or
°F
LED
will start blinking)
2.
Browse to the required parameter and then press the
SET
button to display its current value
3.
Use
UP
or
DOWN
buttons to change its value
4.
Press
SET
button to store the new value and move to the following parameter
To exit
: press
SET+UP
buttons or wait for 15 sec without pressing any key.
NOTE
: the set value is stored even when the procedure exits by waiting for the time-out
12.6
HOW TO ENTER PARAMETER
PROGRAMMING MENU “PR2”
The manufacturer menu (Pr2) includes all the parameters of the instrument.
12.6.1
ENTERING THE PARAMETER PROGRAMMING MENU “PR2”
1.
Enter the Programming mode by pressing the
SET+DOWN
buttons for 3 sec (the
°C
or
°F
icon
will start blinking).
2.
Released the buttons and then push again the
SET+DOWN
buttons for more than 7 sec. The
Pr2 label will be displayed immediately followed from the
HY
parameter.
NOW THE PARAMETER MENU “PR2” IS
AVAILABLE FOR ANY MODIFICATION
3.
Browse to the required parameter.
4.
Press the
SET
button to display its value.
5.
Use
UP
or
DOWN
to change its value.
6.
Press
SET
to store the new value and move to the following parameter.
To exit:
press
SET+DOWN
or wait for 15 sec without pressing any key.
NOTE1:
if no parameter is present in Pr1 menu, after 3 sec
the “
noP
” message
will be displayed. Keep
the buttons pushed till the Pr2 message will be displayed.
NOTE2:
the set value is stored even when the procedure ends by waiting for the time-out
12.6.2
HOW TO MOVE A PARAMETER FROM “PR2” MENU TO “PR1” MENU AND VICE
-
VERSA
Each parameter present in the hidden menu (Pr2) can be moved into the user level (Pr1) by pressing
both
SET+DOWN
buttons. If a parameter is part of the user level, when showed in the hidden menu
the decimal point will be lit.
12.7
HOW TO LOCK THE KEYBOARD
1.
Keep both
UP
and
DOWN
buttons pressed more than 3 sec.
2.
The “
PoF
” message will be displayed, and the keyboard will be locked. At this point it will be
possible only to see the set point or the MAX o Min temperature stored
3.
If a button is pressed more than 3 sec
the “
PoF
” message will be displayed.
12.8
HOW TO: UNLOCK THE KEYBOARD
Keep both
UP
and
DOWN
pressed more than 3 sec till the
“Pon”
message will be displayed.
12.9
THE ON/OFF FUNCTION
By pushing the
ON/OFF
key, the instrument will go in stand-by.
During the stand-by status, all the relays are switched OFF and the regulations are stopped;
if a monitoring system is connected, it does not record the instrument data and alarms.
WARNING: Loads connected to the normally closed contacts of the relays are always supplied
and under voltage, even if the instrument is in stand-by mode.
13.
PARAMETERS
rtC
Real time clock menu (only for controller with RTC):
to set the time and date and
defrost start time.
REGULATION
LS
Minimum set point:
(-100°C to SET; -148°F to SET) sets the minimum value for the
set point.
US
Maximum set point:
(SET to 150°C; SET to 302°F) set the maximum value for set
point.
HY
Differential for normal regulation (compressor cut-in):
(0.1 to 25.5°C; 1 to 45°F)
differential for set point. Compressor Cut IN is Set Point + differential (HY). Compressor
Cut OUT is when the temperature reaches the set point.
odS
Outputs delay activation after power on:
(0 to 255min) this function is enabled at
the initial start-up of the instrument and inhibits any output activation for the period set
in the parameter.
AC
Compressor anti-short-cycle delay:
(0 to 50min) minimum interval between the
compressor stop and the following restart.
AC1 Second compressor anti-short-cycle delay:
(0 to 50min) minimum interval between
the second compressor stop and the following restart.
