Page 1

UN  UF
IN  IF 
SN  SF
OPERATING INSTRUCTIONS
100% ATMOSAFE. MADE IN GERMANY.
www.memmert.com | www.atmosafe.net
Page 2
Page 3

AtmoCONTROL, observe the separate 
You will find the current version of our operating manual as pdf file if you go to 
Page 4

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Page 6

 Safety regulations
Warning signs (warning of a danger)
Prohibition signs (forbidding an action)
Regulation signs (stipulating an action)
Other icons
Page 7

After removing covers, live parts may be exposed. You may receive 
Page 8

Any other use is improper, and may result in hazards and damage.
Appliances IF/UF for use as medical device
Appliances IF/UF for use as medical device
Page 9

You can find information on correcting malfunctions from page 29. 
ON
344.4
4444.
TEMP
Set
°C
°C
FLAP
40%
TIMER
hd
1002
End Sept.29 22 24
FAN
%0
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
Switch off the appliance by pressing the On/
Page 10

 Construction
1
Nameplate (covered, see page 12)
2
3
8
7
4
5 6
Page 11

Appliances of the UN, SN and 
Appliance fuse: Fusible link 250 V/15 A quick-blow
 Function
Page 12

 of a maximum of 0.292 ohm at the point of transfer (service line). The 
 of a maximum of 0.292 ohm at the point of transfer (service line). The 
AtmoCONTROL, the optional 
2.6  Designation ( nameplate)
The nameplate (Fig. 5) provides information about the appliance model
1
2
3
4
5
6
Typ: UN 260        F.-Nr.: 0109.0088 
230 V
~        
14.8 A 50/60 Hz 3400 W
DIN12880-Kl.3.1      Nenntemp.: 300 °C
10
9
8
7
Page 13

Appliance size 30 55 75 110 160 260 450 750
Page 14

D
Applied directives and standards
C
E
B
56
A
G
F
Page 15

Ambient conditions
AtmoCONTROL software for reading out 
 Converter USB to Ethernet
Page 16

You may get your hands or feet squashed when transporting 
30 55 75 110 160 260 450 750
Page 17

≥ 5 cm ≥ 5 cm ≥ 15 cm
Minimum clearance from walls and ceiling
≥ 20 cm
Page 18

Setting up Comments
Suitable for appliance size ...
30 55 75 110 160 260 450 750
Page 19

 Tilt protection
Attach the appliance to a 
As illustrated, fasten the 
Page 20

ON
344.4
4444.
TEMP
Set
°C
°C
FLAP
40%
TIMER
hd
1002
End Sept.29 22 24
FAN
%0
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
Page 21

 Operation and control 
A
 Opening and closing the door 
B
C
Page 22
Page 23

53 41 2
 ControlCOCKPIT for UN/IN/SN appliances in operating mode
Activation key for temperature setpoint 
Activation key for temperature setpoint 
Activation key for temperature setpoint 
Setpoint and actual temperature display
Activation key for fan speed setting
Switch to menu mode (see page 31)
Activation key for fan speed setting
Activation key for fan speed setting
Activation key for timer setting
Switch to menu mode (see page 31)
Switch to menu mode (see page 31)
Air flap position display
Activation key for air flap position adjust-
Air flap position display
Air flap position display
TEMP
180.4°C
Set 180
TIMER
TIMER
30m04h
44h:44m
End 
13:30  23.11.
End 14:45 
.4°C
FAN
FLAP
FLAP
0
40%
20%
%
11 126 7 8 9 10
1 2 5
TEMP
180.0 °C
Set 180.9°C
FLAP
TIMER
TIMER
30m04h
44h:44m
End 
13:30 23.11.
End 14:45 
FLAP
40%
6 7 8 9
10 11 12
Page 24

Activate the desired parameter (e.g. tem-
MENU
30.0
%rh
50.0
%CO2
MENU
TEMP
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
Additional parameters (air flap position etc.) can be set accordingly. 
30.0
%rh
50.0
%CO2
Programm 12
Fr 20.10.2010 20:31
min
000°C
max
000°C
.5°C100
MENU
30.0
%rh
50.0
%CO2
Programm 12
Fr 20.10.2010 20:31
min
000°C
max
000°C
MENU
TEMP
22.4°C
180.0°CSet
TEMP
23.2°C
Set 180
22.4°C
37.0°CSet
.5°C100
.0°C
Page 25

As described in chapter 5.4.2, you can set the following parameters after pressing the cor-
Adjustment range: model dependent (see nameplate and technical 
You can select °C or °F as the temperature unit displayed (see 
TEMP
Adjustment range: 0 % (closed, recirculating operation) to 100 % 
Adjustment range: 0 to 100 % in steps of 10%
30.0
%rh
50.0
%CO2
.5°C100
MENU
30.0
%rh
50.0
%CO2
MENU
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
24.4°C
180.4 °CSet
FLAP
FAN
%40
50
TIMER
-
--h- m
9:00 23.11.
Ende 
TIMER
04 mh 3
13:30 23.11.
End 
0
%
Page 26

%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
TIMER
 – this determines if the timer should not start 
 Electronic temperature monitoring (
Ende 
30m04h
13:30 23.11.
12.Sept.2012
Timer active
TIMER
End 
TIMER
End 
13:44
00m00h
13:30 23.11.
--m--h
9:00 23.11.
Page 27

°C
 Schematic diagram of how the TWW temperature monitoring system works
 Schematic diagram of how the TWB temperature monitoring works
Emergency operation
Setting Max Alarm
Set 
temperature
Controller error
t
°C
heating switched off by TWB
Setting Max Alarm 
Set 
temperature
Controller error
Page 28

 is shown (Fig. 18 ). The type 
 is shown (Fig. 18 ). The type 
Holz trocknen 
aufheizen 
09:12h
Fr 20.10.2010 20:31
min
000°C
ALARM
of °C 
max
000°C
auto off
99K
+
0 12
%rh°C
GRAPH
off
344.4
4444.
TEMP
Set
°C
°C
FLAP
40%
TIMER
hd
1002
End Sept.29 22 24
FAN
%0
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
LICHT
%
100
ALARM
max
190.0°C
5.0K
min
160.0°C
auto
+
-
Manueller Betrieb
12.Sept.2012
13:44
TEMP
180.4°C
TEMP
Set 185
.0°C
344.4
444 4.
TEMP
Set
°C
°C
FLAP
40%
LÜFTER
%
0
23.2°C
TEMP
Set 180
.0°C
TEMP
TB        Set 190.0 °C
195.4°C
344.4
4444.
TEMP
Set
°C
°C
FLAP
40%
TIMER
hd
1002
End Sept.29 22 24
FAN
%0
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
TEMP
TEMP
195.4°C
TB        Set 190.0 °C
23.2°C
180.4°C
Set 180
Set 185
TIMER
TIMER
30m04h
44h:44m
LÜFTER
0
FLAP
KLAPPE
40%
20%
%
ON
.0°C
.0°C
Page 29

After removing covers, live parts may be exposed. You may receive 
Description Cause Action See
TEMP
195.4°C
TWW        Set 190.0 °C
TEMP
195.4°C
TWB        Set 190.0 °C
TEMP
230.4 °C
TB    
Page 30

 Error description  Cause of errors  Rectifying errors See
Appliance is in timer mode
Additionally, depending on the duration of the power loss, the 
After power supply has been restored, operation is continued with the parameters set. The 
After power supply has been restored, the timer always starts again.
Error 23 
Pt100 Error 
Contact 
Service
Page 31

 can make basic settings as well as adjust appliance parameters.
 enter menu mode, press the MENU key.
344.4
444 4.
TEMP
Set
°C
°C
FLAP
40%
TIMER
hd
1002
End Sept.29 22 24
FAN
%0
1 2 3 4 5
Setup activation key (basic appliance set-
Setup display (basic appliance settings)
Setup display (basic appliance settings)
Setup display (basic appliance settings)
Adjustment activation key
Adjustment display
Adjustment display
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
TIME
LANGUAGE
SIGNALTÖNE
SETUP
CALIB
6 7 8 9 10 11
Page 32

Activate the desired parameter (in this 
LANGUAGE
344.4
4444.
TEMP
Set
°C
°C
FLAP
40%
TIMER
hd
1002
End Sept.29 22 24
FAN
%0
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
SIGNALTÖNE
PROG
ZEIT UND DATUM
CALIB
USER ID
PROTOCOL
344.4
4444.
TEMP
Set
°C
°C
FLAP
40%
TIMER
hd
1002
End Sept.29 22 24
FAN
%0
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
PROGRAM
TIME
USER ID
PROTOCOL
PROGRAM
+30%
192.168.100.100
Alarm Temp
°C F 
TWW TWB
Timer Mode
Setup
192.168.100.100
Subnet mask 255. 255.0.0
°C F
TWW TWB 
Timer mode 
Slide-in unit
Grid     Shelf
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
ENGLISH
DEUTSCH 
FRANCAIS 
ESPANOL
SIGNALTÖNE
TIME
SETUP
ON
CALIB
SPRACHE
ENGLISH 
DEUTSCH 
FRANCAIS
ESPANOL 
SPRACHE
ENGLISH 
DEUTSCH 
FRANCAIS
ESPANOL 
LANGUAGE
SETUP
IP address
Balance
IP Adresse
Unit
Einheit
Alarm temp
Page 33

All other settings can be made accordingly. The settings possible are described in the follow-
 display, you can set the following parameters:
 of the appliance's Ethernet interface (for connection to 
 of the temperature display (°C or °F, see page 34)
Programm negnulletsniEllokotorPtäreG efliHnekcurD
network (schematic example)
Setup
Unit
IP adress  255.145.136.225
Subnet mask 255.255.0.0
°C F
1/2
AtmoCONTROL
INP 250  Test 01
180
.0°C
i
HPP 250 Labor
37
.0°C
i
44
.4%rh
-
+-+
Programmname
Editor
Simulation Protokoll
STAND BY
151
192.168.1.216
LAN 1: 192.168.1.233
LAN 2: 192.168.1.215
LAN 3: 192.168.1.241
Page 34

 is automatically highlighted.
Setup
Accept the selection by pressing the 
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
Accept the selection by pressing the 
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
After setting the last three digits, accept 
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
Accept the selection by pressing the 
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
SETUP
IP address 192.168.100.100
Balance
Subnet mask 255. 255.0.0
IP Adresse
Unit
Einheit
Alarm temp
Alarm Temp
Timer mode
Timer Mode
Slide-in unit
+30%
192.168.100.100
°C F
°C F
TWW TWB
TWW TWB
Grid     Shelf
IP address 192. 168.100.100
Subnet mask 255.255. 0.0 
Unit 
Alarm temp
°C F 
TWW TWB
Timer mode
IP address 255. 168.100.100
Subnet mask 255.255. 0.0
Unit
Alarm temp
°C F 
TWW TWB
Timer mode
IP address 255. 168.100.100
Subnet mask 255.255. 0.0 
Unit 
Alarm temp
°C F 
TWW TWB
Timer mode
IP address 255. 145.136.225
Subnet mask 255.255. 0.0
Unit 
Alarm temp
°C F 
TWW TWB
Timer mode
IP address 255. 145.136.225 
Subnet mask 255.255. 0.0
Unit
Alarm temp
°C °F
TWW TWB
Timer mode
IP address 255. 145.136.225 
Subnet mask 255.255. 0.0
Unit
Alarm temp
°C °F
TWW TWB
Timer mode
Page 35

%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
IP address 255. 145.136.225
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
Alarm Temp and Max Alarm)
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
Accept the selection by pressing the 
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
Subnet mask 255.255. 0.0
Unit
Alarm temp
°C °F
TWW TWB
Timer mode
IP address 255. 145.136.225 
Subnet mask 255.255. 0.0
Unit
Alarm temp
°C °F
TWW TWB
Timer mode
IP address 255.145.136. 225 
Subnet mask 255.255. 0.0 
Unit
Alarm temp
°C F
TWW TWB
Timer mode
IP address 255.145.136. 225 
Subnet mask 255.255. 0.0 
Unit
Alarm temp
°C F
TWW TWB
Timer mode
IP address 255.145.136. 225 
Subnet mask 255.255. 0.0 
Unit
Alarm temp
°C F
TWW TWB
Timer mode
IP address 255.145.136. 225 
Subnet mask 255.255. 0.0 
Unit
Alarm temp
°C F
TWW TWB
Timer mode
2/2
Max Alarm
190 °C
SETUP
Page 36

Accept the selection by pressing the 
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
2/2
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
 Timer Mode
A  Timer independent of setpoint: Timer starts right after activation
Max Alarm
SETUP
190 °C
A
°C/°F
6 K
2/2
SETUP
Max Alarm
160 °C
SETUP
2/2
Max Alarm
t
Timer
B
t
Timer
160 °C
Page 37

%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
IP address 255. 145.136.225
Accept the selection by pressing the 
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
Accept the selection by pressing the con-
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
Subnet mask 255.255. 0.0 
Unit 
Alarm temp
°C F 
TWW TWB
Timer mode
IP address 255. 145.136.225 
Subnet mask 255.255. 0.0
Unit
Alarm temp
°C F 
TWW TWB
Timer mode
IP address 255. 145.136.225 
Subnet mask 255.255. 0.0
Unit 
Alarm temp
°C F 
TWW TWB
Timer mode
IP address 255. 145.136.225 
Subnet mask 255.255. 0.0 
Unit 
Alarm temp
°C F 
TWW TWB
Timer mode
IP adress 255.145.136.225 
Subnet mask 255.255. 0.0
Unit 
Alarm temp
°C °F
TWW TWB 
Timer mode
Slide-in unit
Grid     Shelf
IP adress 255.145.136.225 
Subnet mask 255.255. 0.0
Unit
Alarm temp
°C °F 
TWW TWB
Timer mode
Slide-in unit
Grid     Shelf
IP adress 255.145.136.225 
Subnet mask 255.255. 0.0
Unit 
Alarm temp
°C °F
TWW TWB 
Timer mode
Slide-in unit
Grid     Shelf
Page 38

%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
 display, you can set the date and time, time zone and daylight savings.
Activate the time setting To do so, press 
 display. The display is enlarged 
Date
– e.g. the time zone: Turn the turn 
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
Accept the selection by pressing the 
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
Time 
Time zone 
Daylight savings
Date and time
12. 05. 2012
12:00 
GMT +1
IP adress 255.145.136.225 
Subnet mask 255.255. 0.0 
Unit
Alarm temp
°C °F
TWW TWB 
Timer mode
Slide-in unit
Grid     Shelf
Date 
Time
Time zone
12.05 .2012 
12:00 
GMT +1
Daylight savings
Date 12
Time 
Time zone
.05. 2012 
12:00 
GMT +1
Daylight savings
Date 27
Time 
Time zone
.05. 2012 
12:00 
GMT +1
Daylight savings
Date 27 05
Time 
Time zone
. . 2012 
12:00 
GMT +1
Daylight savings
Page 39

Accordingly, you can also set:
-11  -10  -9   -8   -7   -6   -5   -4   -3   -2   -1    0   +1  +2   +3   +4  +5   +6   +7   +8   +9  +10  +11 
+12 -12-11
-11  -10  -9   -8   -7   -6   -5   -4   -3   -2   -1    0   +1  +2   +3   +4  +5   +6   +7   +8   +9  +10  +11 
+12 -12-11
Page 40

CAL 1
Schematic example of temperature adjustment
Activate the adjustment setting. To do 
PROGRAM
TIME
USER ID
PROTOCOL
PROGRAM
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
+0,5 K
CAL 3
-0,8 K 
CAL 2 
+2,6 K
factory calibration
0°C
40°C
120°C
Temperatur
Temperature
Last updated 12.10.2012  12:00:00
letzte Justierung 12.10.2012  12:00
180°C
JUSTIEREN
Calibration
Cal1 
°C -0,2
40.0
C K0,2-
Cal1
40.0 
Cal2 100.0 °C +0,1K
C K0,1+
Cal2
100.0 
Cal3 180.0 °C -0,2 K
C K0,2-
180.0 
Cal3
K
Temperature
Temperature
Temperature
Cal1
Cal2
100.0
Cal3
180.0 
Cal1
Cal2
120.0
180.0 
Cal3
Cal1
Cal2
120.0 0,1+
Cal3
180.0 
40.0 
40.0 
40.0 
C K0,2- 
C K0,1+ 
C K0,2-
C K0,2- 
C K0,1+ 
C K0,2-
C K0,2-
C K
C K
0,2-
Page 41

%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
TEMP
%
100
ALARM
max
444.4°C
auto
+
/
-
0.0K
min
444.4°C
After the calibration procedure, the 
Temperature
Cal1
40.0 
Cal2
120.0 0,0
Cal3
180.0 
TEMP
21.4°C
C K0,2-
C K
C K
120.0 °CSet
0,2-
120.0°C
Set 120
.0°C
TEMP
120.0°C
Set 120
.0°C
Temperature
122.6 °C
C K0,2-
Cal1
40.0 
C K
Cal2
120.0 2,6+
C K
Cal3
180.0 
120.0 °C
0,2-
Page 42

 Sterilisers SF/SN 
According to WHO: 180 °C with a minimum hold time of 30 min
According to the European Pharmacopoeia: 160 °C with a minimum hold time of 120 min
Page 43

 Maintenance and service
After removing covers, live parts may be exposed. You may 
Page 44

 Storage and disposal
 Storage
Page 45

 Index
Page 46
Page 47
Page 48

Universal ovens
Incubators
Sterilisers
24.05.2013
D24022 // englisch
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