imex Digitprosto PRO2500 User manual

1
1
DIGIROSTO
PRO 2500 OWNER’S MANUAL
IMEX CORPRATION LTD.

2
2
Dear Customers.
Thank you very much for purchasing of coffee roaster DIGIROSTO PRO25
which is adapted totally new idea and new technology you have never
experienced.
Since 1999 when we started manufacturing of new technology coffee roaster,
we have continued research & development with all our strength. Now we are
manufacturing 4th and 5th generation coffee roaster adapted high IT technology
that is analyzed 1 years traditional roasting technology, and we expect
PRO25 digital coffee roaster to lead coffee roasting technology.
Even though PRO25 is adapted advanced high-technology, PRO25 is
designed so that anybody can roast green beans simply just by mastering this
user manual. Just read this user manual before you roast, and then you can roast
gourmet coffee beans without prior skills and experiences.
We recommend you use a machine according to the direction in this manual to
use a machine safely for a long time.
To keep a superior performance and to operate a machine accurately, please
follow an installation method and keep machine’s condition in this manual.
We are doing our best so that all our customers are satisfied with our machines.
Thank you for your support and purchase again.
IMEX CORPORATION LTD.
Quality Control Team
www.digirosto.com
<Technologies of IMEX are patented both in Korea and the U.S.A.>

3
3
Important Safeguards
1. Read all instructions carefully before use of PRO2500.
2. Do not touch top side of machine around smoke eliminator) and
air outlet cooling table’s right top side) as they get very hot
during roasting.
3. Be careful when you take out chaff drawer and clean up right after roasting as
chaff drawer and knob may be very hot.
4. While a machine is operated, please run a fan or change the room air.
5. If the temperature around machine is over 35C, there’s might be operating
error. Secure more than 5 cm space at least around the machine so that
auto-cooling is smooth.
6. Keep water tank clean, and fill water more than 1/3. Use purified drinking
water only.
7. Before starting work, preheat a drum for auto cleaning and roasting.
8. Do not use wet duster around monitor.
9. Do not operate a machine more than 3 times continuously. After 1 hour’s rest,
machine can be operated again.
<Keep this user manual near a machine.>

4
4
TABLE OF CONTENTS
1. Installation ----------------------------------------------------- 5 page
2. Check points --------------------------------------------------- 6 page
3. Description of the RO 2500 ----------------------------- 7 page
4. Functions ------------------------------------------------------- 8 page
5. How to Roasting
(1) New Setting ---------------------------------------------- 12 page
(2) re Setting ----------------------------------------------- 18 page
6. Trouble Shooting
(1) Online Trouble Shooting ------------------------------ 22 page
(2) Manual Trouble Shooting ----------------------------- 23 page
7. Management
(1) Bean Report --------------------------------------------- 25 page
(2) Daily Report --------------------------------------------- 26 page
(3) Download Mode ----------------------------------------- 27 page
(4) Time Set -------------------------------------------------- 28 page
8. Q & A ------------------------------------------------------------ 29 page

5
5
1. Notice for Installation
Electrical Circuit
1) Please confirm voltage AC22 V or 385V, phase (single or Ø3 or 4 wire) and Hz
(5 Hz or 6 Hz).
2) For power line, use 5.5m/m2 if the machine is in 5~1 m and 8. m/m2 above 1 m
from cabinet panel. (5.5m/㎡ can be used for AC385V in 15m)
3) Distribution switch should be 4 A circuit breaker switch, and .its voltage leakage
switch should not be under 5W.
4) Please connect earth wire with a machine without fail.
5) If voltage difference is more than 6V between initial and operating, check power
line connection and switch.
Location of Installation
1) Secure more than 5 cm space at least around the machine.
2) Furnish with a fan in 1~2m around machine.
About 3 cmX3 cm fan on ceiling or top side of wall is ideal.
3) Be careful not to splash water around a machine in 1m.
4) Do not use gas around a machine in 1 meter.
5) The machine can be used connected with personal computer. In this case, set the
machine in communication mode with blue tooth antenna. - Blue Tooth Antenna is
for separate purchase. Maximum distance between computer and blue tooth is about
5 m (4~5 floors’ distance).
6) Install a machine where the room temperature is around 25℃ and air circulation is
smooth.
Installation
1) Locate a machine where you want and fix it adjusting wheel on machine’s bottom.
Keep machine horizontally using horizontal gauze if possible.
2) Confirm ‘electric source line’, ‘neutral line’ and ‘earth wire’ correctly before
connecting a machine with cable breaker that should be 5 A and with no leakage
breaker.

6
6
2. Check points
1. For the first Roast
Fill up water tank with purified water, and press fire-extinguishing button around 15
seconds, and then check water spread in the chaff drawer.
2. Check points before Roasting
1) Check if there is enough water in water tank.
2) Check if water quenching switch is on.
3) Check if water hose is full with water.
Or pump up by pressing fire extinguishing button.
4) Check if there are remained coffee beans in a drum.
5) Check if a chaff drawer is cleaned and both locking knobs are tight to clockwise till
18 degrees of angle.
6) Check if bean peel or bean fragments are remained in cooling outlet.
3. Regular Check Points and Cleaning
1) Chaff Drawer Cleaning : After every roasting, clean chaff drawer and inside of
chaff drawer located place after taking out a chaff drawer.
(Vacuum cleaning is recommended)
2) Check and clean filtering net which is located left bottom of cooling table.
3) Check water in water tank, and keep water more than half of tank. Use purified
drinking water only.
4) Check operating of water pump and water spray by pressing fire extinguishing
switch after replenishment of water.
5) Check battery (12V+2) every month.
6) Cooling exhaust wire mesh cover should be cleaned everyday.
7) Check Charcoal in Charcoal Filter Tray once in 6 months, and replace them if it is
needed.

7
7
3. Description of the PRO 2500
GREEN BEAN
IN CHUTE
SMOKE ELIMINATOR
LCD MONITOR
BLUETOOTH ANTENNA
MAIN SWITCH
SCANNER PORT
RS232
CONTROL SWITCH
COOLING EXHAUST
FIRE EXTINGUISHING
BUTTON
ROASTED BEAN
OUT CHUTE
WATER QUENCHING SWITCH

8
8
4. Function
▲ Roasting Mode
1) SCAN MODE
When scanning a barcode with a scanner or inputting barcode manually,
SCAN MODE is used. The roaster is enabled to recognize the bean’s data for
roasting by reading a barcode, and this mode is mainly useful for Franchise
Business.
1) Press he SCAN MODE bu on on he
MAIN MENU.
2) Scan he barcode ha s icks on he
pack of he green bean by using a
scanner. O herwise manual barcode’s
inpu is available. Af er ouching he
barcode, namely “Touch-Screen”, press
he ENTER bu on.
If pressing a wrong barcode number,
dele e i by using he bu on.
`
NOTE: To urn back o previous process
from he presen one, press he
bu on.

9
9
2) AUTO MODE
1) PRE SETTING: Prese Roas ing
Da a.User can use already se
roas ing da a by selec ing one
program ha is s ored each bean’s
da a. (When he roas er is fac ory
ou , kinds of bean’s da a s ored
ini ially. Basic da a is Cos a Rica,
3Kg, MEDIUM, MEDIUM).
2) NEW SETTING: User can crea e
new roas ing da a, and hen i can
be saved in o he program for nex
use.
▲ MANAGEMENT & SETTING
Self-Diagnos ic of a faul on he machine or seeking i hrough ne work connec ion
wi h he main compu er of he head office.
There are five modes in he
MANAGEMENT as below.
1) ONLINE TROUBLE SHOOTING:
Finding a faul by he In erne connec ion
be ween he roas er and he main
compu er of he head office.
2) MANUAL TROUBLE SHOOTING:
User’s direc checking of a faul on he
main componen s such as Hea er, Mo or,
Solenoid e c.
3) REPORTING REPORT: Display of he
Green Bean’s da a ha he user has
roas ed, he roas ing number and he
beans weigh up o presen .
4) AGING CHECK: Checking wa er
quenching func ion af er roas ing.
5) DOWNLOAD MODE: On-
line program’s
upgrade is suppor ed by connec ing o he
main compu er of he head office.

10
10
▲ PREHEAT, COOLING, BEAN OUT
1) PREHEAT
PREHEAT is used for he s a us of wai ing in case no of immedia e con inuous roas ing.
This makes he ime shor er o be ready o roas again.
2) COOLING
This is used for Cooling he roas ed beans.
1) Press he COOLING bu on on he
MAIN MENU.
2) The Cooling fan of he Cooling Table
begins o work and he Bean Brushes
ins alled inside makes he roas ed
beans cool by heir ro a ion.
1) Press he PREHEAT bu on on he
MAIN MENU.
2) While Prehea ing, he inside
empera ure of he Drum keeps 150°C.

11
11
3) BEAN OUT1
This is used for he roas ed beans ou from in he roas er drum.
1) Press he BEAN OUT1 bu on on
he MAIN MENU.
2) Then he roas ed bean is
discharged from roas er drum by
working he BEAN DISCHARGE
SOLENOID of he Cooling Table.
(When you wan o s op he
opera ing, press BEAN OUT1
again.)
4) BEAN OUT2
This is used for he roas ed beans ou from he Cooling Table.
1) Press he BEAN OUT2 bu on on he
MAIN MENU. Before pressing bu on,
prepare coffee bean con ainer.
2) Then he roas ed bean is discharged
from Cooling Table o ou . (When you
wan o s op he opera ing, press BEAN
OUT2 again.)

12
12
5. How to ROASTING
1. New Setting
User can roas bean upon i s species by selec ion of a program among ca egories in
he roas er. Af er his new se ing, user can save roas ing informa ion and use his for
nex roas ing by selec ion of his pre-se ing.
※ For he firs use, he basic da a is
s ored in o he PRE SETTING , of which
he fac ory prese . If user wan s
o save a
new se ing, user has o s ar NEW
SETTING mode and save he new
roas ing informa ion on menu.
1) Press he AUTO MODE on he MAIN
MENU.
2) Press he NEW SETTING bu on on he
AUTO MODE.

13
13
3) Press he BEAN bu on on he bo om
column and hen selec he bean’s origin.
(among 20 choices)
4) Press he WEIGHT bu on, and inpu
he bean’s weigh af er he screen is
changed, (ex. 1.5kg, 2kg, 2.5kg, 3kg)
According o he bean’s weigh , he
drum’s empera ure will be adjus ed
differen ly. The heavier he bean’s weigh
is, he higher he drum’s empera ure will
be.
5) Selec Bean Ca egory (among Dark
Green, Ligh Brown, Green, Brown, Ligh
Green, We Green).
<Generally, firs cropped and wa er
processed bean color changes Ligh
Green o Medium-Ligh Brown, and sun
dried bean changes o Ligh Brown upon
he preserving period. We green color
migh be in he beans from Sou h
Eas ern Asia, some of Pacific Coas Line
Area, For hese we green beans, drum
empera ure se ing
is higher han o hers.
>
* The drum’s empera ure, roas ing ime
and crack empera ure is es ablished
according o he bean’s color. The darker
he bean’s color is, he higher he drum’s
empera ure will be.

14
14
6) Press he COLOR bu on, and af er
he screen is changed, selec he
roas ing color
(Ligh , Medium, Dark, Pi ch
Dark) ha you wan . Then press he
ENTER bu on.
7) The drum’s empera ure and he
crack’s empera ure are enabled o
adjus manually. Press CURSOR bu on
and hen selec one ar icle ha you wan
o adjus . Af er your selec ion, * is
displayed on he righ of he selec ed
ar icle and hen change he empera ure
by using or bu ons.
Also he color adjus is available o ma ch
o he Green Bean’s color more correc ly
by pressing or
bu ons. The changeable number is from
–
2 o +2, and as much as he number is
smaller, he color is ligh er.
8) If you wan o save his se ing, press
he SAVE bu on and go o he s ep of
(9-1). You can save his roas ing da a
bo h on his screen and af er seeing he
bean’s roas ed resul . If you wan save
his se ing af er comple ion of roas ing,
press he START bu on
wi hou pressing
save bu on. And hen you can save his
da a.

15
15
※ Once pressing he SAVE bu on:
9-1) Selec one among he MENU
bars(0~9) and press he SAVE bu on.
NOTE: Prior o pressing he SAVE
bu on, firs check if he prese da a is
needed for fu ure roas ing or no because
he prese da a is dele ed once pressing
he SAVE bu on.
However if pressing he MODIFY bu on,
i would be back o he previous se ing
da a.
9-2) Press he START bu on for
pre-hea .
10) Before you s ar roas ing, he
au oma ic diagnosis would be performed
o search a defec of he machine, and
hen if here is no faul , he Roas ing will
go o nex s ep au oma ically.
For example, lef pic ure is he message
o alarm he vacan wa er ank. In his
case, check he wa er ank and fill i
. And
hen press ‘roas ing’ for s ar .
11) The machine diagnoses each par . I
f
here’s no problem i says ok,
if he par is
defec ed, error is shown
. The more nearer
o 100% indica ed, he more accura e
he
s a us.(Normally 80%~120% is safe.
) If
every par
is ok, nex opera ing commence
au oma ically. If here’s problem, hree
men
us appears a he bo om same as lef
pic ure. If press ‘roas ing’, he machine
roas con inuously. Press managemen if
you wan o check he problem, and press
‘main menu’ if you wan o go o ‘main
menu’.

16
16
※ This screen is displayed, s ep (12), in
case of no pressing he SAVE bu on a
he s ep of (8) described above.
12) When in prehea , he green bean’s
color is available o change more
correc ly. The changeable number is
from –2 o +2, and as much as he
number is smaller, he color is ligh er.
NOTE: If s op prehea ing, press he
STOP bu on and hen he roas ing
comple ed screen is displayed.
13) Prior o reaching he prehea
empera ure, he pre-
buzzer sounds, and
hen once approaching he exac prehea
empera ure, he buzzer sounds again
wi h message as lef pic ure. While his
buzzer sounds, do no inpu green
beans.
14) Pu he green beans and hen press
he NEXT bu on, and roas ing is s ar ed.
NOTE: Af er pressing NEXT bu on,
Green Bean Pu Door is closed.
WAIT A MOMENT FOR
POURING BEAN

17
17
15) The presen s a us of he roas ing
process moni ors in a real ime.
While roas ing
, you can adjus he drum’s
empera ure or he crack’s empera ure
manually. Press CURSOR bu on and
hen selec one ar icle ha you wish o
adjus . * would be displayed on he righ
side of he selec ed ar icle’s number and
hen change he empera ure by using
or bu ons.
Also during roas ing, he color’s adjus is
available. This adjus process is same o
he s ep of (12) as above ha was
in roduced previously.
If pressing he STOP bu on while
roas ing, he roas ed beans move down
o he cooling able.
16) Once he roas ing is comple ed, he
aging begins au oma ically.
17) When he aging is finished, he
announcing message is displayed and
hen he roas ed beans moves down o
he cooling able au oma ically. Af er ha ,
he lamp urns off.
18) The cooling process is s ar ed
au oma ically by ro a ing he cooling fan.
19
) When he cooling cycle is comple ed,
press he BEAN OUT bu on. Pre
pare he
con ainer for pu ing he roas ed beans in
advance and pull hem ou of he cooling
able.
20) If saving he se ing da a of he roas
up o his s ep, press he SAVE bu on.
21) Once one roas ing cycle is ended,
press he FINISH bu on o re urn o he
MAIN MENU.
NOTE: if no pressing he SAVE bu on,
he roas ed da a up o his s ep would
disappear.

18
18
※ In case of pressing he SAVE bu on
on he s ep of (20):
22) For saving he roas ed se ing da a,
selec one ou of he MENU bars(0~9)
and press he SAVE bu on.
NOTE: Prior o pressing he SAVE
bu on, firs check if he prese da a of
your selec ed MENU is necessary
needed o you for fu ure roas ing or no .
Because he prese da e is dele ed once
pressing he SAVE bu on.
23) Since one roas ing cycle is ended,
press he FINISH bu on o re urn o he
MAIN MENU.
2. PRE SETTING
Pre se ing is roas ing program made using new se ing. (10 programs of ini ial
menu are saved before shipmen from fac ory. Basic Program is for Nicaragua, 5kg,
medium.)
1) Press he AUTO MODE bu on on he
MAIN MENU and hen prehea ing begins
au oma ically.
2) Press he PRE SETTING bu on on
he AUTO MODE.

19
19
3) Selec one ou of he MENU Bars(0~9)
and check if he prese da a of he
selec ed MENU is
ha you wish o roas .
4) Press START Bu on.
NOTE: In he PRE SETTING mode, i ’s
no available o save any da a before
roas ing and you can save he roas ed
da a on he Scene of he SETTING only
af er finishing he roas ,
5) Before s ar ing o
Roas , he au oma ic
diagnosis would be performed o search
a defec of he machine, and hen if here
is no faul , he Roas ing will commence
au oma ically.
In case ha here is any faul , he rela ed
error repor will be displayed.
For example, lef pic ure is o alarm he
vacan wa er ank. Check if he wa er
ank is filled wi h wa er, and res ar
roas ing.
6) The machine diagnoses each par . i
says ok if here’s no problem, error if he
par is defec ed. The more nearer o
100% he number indica ed, he more
accura e.(i is ok 80%~120%) If
every hing is ok, nex opera ing
commence au oma ically. If here’s
problem, hree menus appears a he
bo om same as lef pic ure. If press
‘roas ing’, he machine roas
con inuously. Press managemen if you
wan o check he problem, and press
‘main menu’ if you wan o go o ‘main
menu’.

20
20
7) While prehea ing, he green bean’s
color is possible o change more
correc ly. The changeable number is
from –2 o +2, and as much as he
number is smaller, he color
is ligh er. (To
s op prehea ing, press s op bu on. And
hen main screen is displayed).
8) Prior o reaching he prehea
empera ure, he pre-
buzzer sounds, and
hen once approaching he exac prehea
empera ure, he buzzer sounds again.
9) Pu he green beans and hen press
he NEXT bu on.
NOTE: Green Bean Pu Door only can be
open af er prehea
was comple ed.
10) The presen s a us of he roas ing
process shows on moni or in a real ime.
Drum’s empera ure and crack’s empera ure
can be adjus ed manually during roas ing
using cursor and +/- bu ons.
- CURSOR bu on : selec one ar icle.
- +/- bu on : adjus empera ure and ime
using bu ons.
Also during roas ing, color’s adjus is
available. This adjus process is same o he
s ep of (5) ha was in roduced previously.
If pressing he STOP bu on while roas ing,
he roas ed beans move down o he cooling
able.
11) Once he roas ing is comple ed, he
aging begins au oma ically.