Elcold UNI Operations Instructions download pdf (Page 7)

User Instructions Low Temperature Freezers Model UNI/LT

6

FRONT PANEL COMMANDS

SET: To display target set point; in pro

gramming mode it selects a

parameter or conﬁrm an opera

tion.

(DEF) To start a manual defrost

(UP) To see the last temperature

alarm happened; in program

ming mode it browses the para-

meter codes or increases the

displayed value.

(DOWN) To see the last temp-

erature alarm happened; hold

pressed it switches the auxiliary

output; in programming mode it

browses the parameter codes or

decreases the displayed value.

KEY COMBINATIONS:

+ To lock & unlock the keyboard.

SET + To enter in programming mode.

SET + To return to the room temperature

display.

TEMPERATURE ALARM AND ITS DURATION

RECORDING (HACCP)

XR30C signals and records temperature

alarms, together with their duration and

max value reached. See drawing:

HOW TO SEE THE ALARM DURATION AND MAX

(MIN) TEMPERATURE

If the alarm LED is on, an alarm has taken

place.

To see the kind of alarm, the max (min)

reached temperature and alarm duration

do as follows:

1. Push the Up or Down key.

2. On the display the following mes

sage is shown::

“HAL” for high temperature alarm

(“LAL” fot the minimum allarm),

followed by the Maximum (mini-

mum) temperature.

Then the “tiM” (tiMe) message is

displayed, followed by the “Dura-

tion” in h.mm.

3. Then the instrument displays the

temperature once again.

NOTE1: if an alarm is still occurring the “tim”

shows the partial duration.

NOTE2: the alarm is recorded when the tem-

perature come back to normal values

HOW TO RESET A RECORDED ALARM OR ONE

THAT IS STILL OCCURRING

1. Hold the SET key pressed for more

than 3s, while the recorded alarm

is displayed. (the rSt message will

be displayed)

2. To conﬁrm the operation, the “rSt”

message starts blinking and the

normal temperature will be dis

played.

MAIN FUNCTIONS

HOW TO SEE THE SETPOINT

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-

onds to display the probe value

again.

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

SET

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