Elcold LAB Series User Instructions page 9

6.2 HOW TO CHANGE THE SETPOINT
1. Push the SET key for more than 2 seconds to change the Set point value.
2. The value of the set point will be displayed and the "°C" or "°F" LED starts blinking;
3. To change the Set value push the
4. To memorise the new set point value push the SET key again or wait 10s.
6.3 HOW TO START A MANUAL DEFROST
Push the DEF key for more than 2 seconds and a manual defrost
will start.
6.4 HOW TO CHANGE A PARAMETER VALUE
To change the parameter's value operate as follows:
1. Enter the Programming mode by pressing the Set +
"°F" LED starts blinking).
2. Select the required parameter. Press the "SET" key to display its value
3. Use "UP" or "DOWN" to change its value.
4. Press "SET" to store the new value and move to the following parameter.
To exit: Press SET + UP or wait 15s without pressing a key.
NOTE: the set value is stored even when the procedure is exited by waiting the
time-out to expire.
6.5 THE HIDDEN MENU
The hidden menu Includes all the parameters of the instrument.
6.5.1 HOW TO ENTER THE HIDDEN MENU
1. Enter the Programming mode by pressing the Set +
"°F" LED starts blinking).
2. Released the keys, then push again the Set +
The Pr2 label will be displayed immediately followed from the HY parameter.
NOW YOU ARE IN THE HIDDEN MENU
3. Select the required parameter.
4. Press the "SET" key to display its value
5. Use or to change its value.
6. Press "SET" to store the new value and move to the following parameter.
To exit: Press SET + or wait 15s without pressing a key.
: if none parameter is present in Pr1, after 3s the "noP" message is
NOTE1
displayed. Keep the keys pushed till the Pr2 message is displayed
: the set value is stored even when the procedure is exited by waiting the
NOTE2
time-out to expire.
HOW TO MOVE A PARAMETER FROM THE HIDDEN
6.5.2
MENU TO THE FIRST LEVEL AND VICEVERSA.
Each parameter present in the HIDDEN MENU can be removed or put into "THE
FIRST LEVEL" (user level) by pressing
"SET +
In HIDDEN MENU when a parameter is present in First Level the decimal point is on.
6.6 HOW TO LOCK THE KEYBOARD
1. Keep pressed for more than 3 s the UP + DOWN keys.
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 key is pressed more than 3s the "POF" message will be displayed.
6.7 TO UNLOCK THE KEYBOARD
Keep pressed together for more than 3s the
message will be displayed.
6.8 THE CONTINUOUS CYCLE
When defrost is not in progress, it can be activated by holding the "o" key pressed for
about 3 seconds. The compressor operates to maintain the "ccS" set point for the time
set through the "CCt" parameter. The cycle can be terminated before the end of the
set time using the same activation key "o" for 3 seconds
6.9 THE ON/OFF FUNCTION
With "onF = oFF", pushing the ON/OFF key, the instrument is switched off.
"OFF"
The message is displayed. In this configuration, the regulation is disabled.
To switch the instrument on, push again the ON/OFF key.
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.
User Instructions Ultra Low Temperature Freezers Model LAB
or arrows within 10s.
keys for 3s (the "°C" or
keys for 3s (the "°C" or
keys for more than 7s.
.
.
"
and keys, till the "Pon"
.
7. PARAMETERS
REGULATION
Hy Differential: (0,1 ÷ 25,5°C / 1÷255 °F) Intervention differential for set point.
Compressor Cut IN is Set Point + differential (Hy). Compressor Cut OUT is when
the temperature reaches the set point.
LS Minimum set point: (- 50°C÷SET/-58°F÷SET): Sets the minimum value for the
set point.
US Maximum set point: (SET÷110°C/ SET÷230°F). Set the maximum value for set
point.
Ot Thermostat probe calibration: (-12.0÷12.0°C; -120÷120°F) allows to adjust
possible offset of the thermostat probe.
P3P Third probe presence (P3): n= not present:, the terminal operates as digital
input.; y=present:, the terminal operates as third probe.
O3 Third probe calibration (P3): (-12.0÷12.0°C; -120÷120°F). allows to adjust
possible offset of the third probe.
P4P Fourth probe presence: (n = Not present; y = present).
o4 Fourth probe calibration: (-12.0¸12.0°C) allows to adjust possible offset of the
fourth probe.
OdS Outputs activation delay at start up: (0÷255min) This function is enabled at the
initial start up of the instrument and inhibits any output activation for the period
of time set in the parameter.
AC Anti-short cycle delay: (0÷50 min) minimum interval between the compressor
stop and the following restart.
CCt Compressor ON time during continuous cycle: (0.0÷24.0h; res. 10min) Allows
to set the length of the continuous cycle: compressor stays on without interruption
for the CCt time. Can be used, for instance, when the room is filled with new products.
CCS Set point for continuous cycle: (-50÷150°C) it sets the set point used
during the continuous cycle.
COn Compressor ON time with faulty probe: (0÷255 min) time during which the
compressor is active in case of faulty thermostat probe. With COn=0 compressor
is always OFF.
COF Compressor OFF time with faulty probe: (0÷255 min) time during which the
compressor is OFF in case of faulty thermostat probe. With COF=0 compressor is
always active.
CH Type of action: CL = cooling; Ht = heating.
DISPLAY
CF Temperature measurement unit: °C=Celsius; °F=Fahrenheit. WARNING:
When the measurement unit is changed the SET point and the values of the
parameters Hy, LS, US, Ot, ALU and ALL have to be checked and modified if
necessary).
rES Resolution (for °C): (in = 1°C; dE = 0.1 °C) allows decimal point display.
dLy Display delay: (0 ÷20.0m; risul. 10s) when the temperature increases, the
display is updated of 1 °C/1°F after this time.
DEFROST
IdF Interval between defrost cycles: (0÷120h) Determines the time interval
between the beginning of two defrost cycles.
MdF (Maximum) length for defrost: (0÷255min) When P2P = n, (not evaporator
probe: timed defrost) it sets the defrost duration, when P2P = y (defrost end
based on temperature) it sets the maximum length for defrost.
dFd Temperature displayed during defrost: (rt = real temperature; it =
temperature at defrost start; SEt = set point; dEF = "dEF" label)
dAd MAX display delay after defrost: (0÷255min). Sets the maximum time
between the end of defrost and the restarting of the real room temperature
display.
ALARMS
ALC Temperature alarms configuration: (Ab; rE)
Ab= absolute temperature: alarm temperature is given by the ALL or ALU
values. rE = temperature alarms are referred to the set point. Temperature
alarm is enabled when the temperature exceeds the "SET+ALU" or "SET-ALL"
values.
ALU MAXIMUM temperature alarm: (SET÷110°C; SET÷230°F) when this
temperature is reached the alarm is enabled, after the "ALd" delay time.
ALL Minimum temperature alarm: (-50.0 ÷ SET°C; -58÷230°F when this
temperature is reached the alarm is enabled, after the "ALd" delay time.
AFH Differential for temperature alarm recovery: (0,1÷25,5°C; 1÷45°F)
Intervention differential for recovery of temperature alarm.
ALd Temperature alarm delay: (0÷255 min) time interval between the detection of
an alarm condition and alarm signalling.
dAO Exclusion of temperature alarm at startup: (from 0.0 min to 23.5h) time
interval between the detection of the temperature alarm condition after
instrument power on and alarm signalling.
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