TESTO 445 User manual

Instruction manual en
testo 445 · testo 645
99 Washington Street
Melrose, MA 02176
Phone [phone]
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Initial operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
First measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Instrument description
-Keypad/ connection assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
-Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Overview of controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-9
1. Current measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Switching on, selecting parameter in display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Saving, printing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
2. Measurement functions11-13
Freezing readings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Maximum readings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Minimum readings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Multi-point mean calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Timed mean calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
3. Location selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
4. Parameter settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15-17
System adjustment (testo 645) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Adjusting humidity probes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Displaying calculated humidity parameters (td°C; g/m3; g/kg; J/g) . . . . . . . . . . . . . . . . . . . .16
Switches CO2ppm Vol% (testo 445) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Initialising differential pressure probe (testo 445) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Activating m/s in differential pressure probes (testo 445) . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Activates volume flow and sets duct cross-sections
for velocity and differential pressure probes (testo 445) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
5. Memory settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18-21
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Manual saving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Automatic saving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Reading or printing memory contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Clearing memory contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
2
Contents
According to the conformity certificate, the instruments fulfill 2004/108/EEC
guidelines.
1999 Copyright Testo GmbH & Co.
The software and software structure included in the product testo 445/645 are protected by
copyright laws worldwide.

Dear Customer
You have made the right decision by choosing a measuring instrument from Testo. Every year,
thousands of customers purchase our high-quality products. There are many good reasons for this.
1) We offer value for money. Reliable quality at the right price.
2) Considerably longer guarantee periods of up to 3 years - depending on the instrument.
3) With over 40 years of specialist experience we are optimally equipped to solve your measuring
tasks.
4) Our high quality standards are confirmed by ISO 9001 certification.
5) It goes without saying that our instruments bear the CE mark required by the EU.
3
Foreword
6. Instrument configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22-26
“AutoOFF” power save function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Setting power supply, with rechargeable battery or battery . . . . . . . . . . . . . . . . . . . . . . . . . .23
Setting date/time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Setting parameters for absolute pressure and density compensation . . . . . . . . . . . . . . . . . .25
Unit selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Factory reset . . . . . . . 26
7. Velocity measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27-28
Volume flow funnel (testo 445) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Pitot tube and pressure probe (testo 445) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Thermal anemometer probes (testo 445) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
8. CO/CO2measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29-30
Measuring absolute pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31-32
Error messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34-35
Ordering data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36-43
Contents

4
Initial operation
Please read prior to measurement
Do not measure on live parts.
Do not switch instrument on or off with the button
- during instrument configuration
- during automatic saving
Complete automatic saving before connecting instrument to the Comfort software.
If the instrument does not function remove battery and put it in again. The respective error
message is shown in the display. Refer to the information on “Error messages” on page 33 of
the Instruction manual.
Observe storage and transport temperature and max. operating temperature (e.g. protect
measuring instrument from direct sunlight)
When changing configurations (e.g. changing the probe), the instrument should be switched off
because the values specific to the probe can only be read when the instrument is switched on.
The V24 cable (PC connection) can be inserted anytime.
A simultaneous print command is not possible if the PC cable is connected.
Ensure that the contacts are correct in probes with a plug-in head.
The swivel nut in the probe handle should be securely tightened.
Opening the instrument, inexpert handling and use of force cancels your warranty.
Putting in the batteries
9V block battery is included in delivery.
Open the battery compartment at the back of the instrument.
Put in block battery. Observe polarisation.
Close battery compartment.
Refer to “Power supply” Chapter for more information on
alternative power supply, charge, battery quality, charging
procedure.
Observe instrument configuration when using
rechargeable batteries.

5
First measurement
A description of the instrument and an overview of the
controls guarantee a quick introduction.
Note: The measuring instrument must be switched off before a probe
is connected.
You will receive up-to-date readings once a probe is inserted and the
measuring instrument is switched on. However, you will still need to
update or define the data in the instrument:
Date/Time:
Auto Off:
Units:
Some things can only be set via PC software (See Ordering data):
Location name (8 characters)
Log head (24 characters), e.g. your company name -
is also printed when readings are printed.
i
Instrument configuration

6
Instrument description
Keypad/Connection assignment
Prints
On/Off
Saves
Hold Max Min
Mean
Arrow buttons
move the cursor
Return to current
measurement/
location
Confirms menu
setting/
executes function
Connection assignment:
Keypad:
testo 645
Socket 1:
– Temperature probes
(T/C type K/J/S or NTC)
Socket 2:
– Combined probe for humidity
(capactive)
and temperature
(NTC or Ni 10000)
– Temperature probes
(PT100)
RS232: Connection for PC
12V: Mains unit connection
testo 445
Socket 1:
– Thermal velocity probes
(heated wire or ball)
– Vanes (inductive)
– Temperature probes
(Type K/J/S T/C or NTC)
– Differential pressure probes
(piezoresistive)
– Absolute pressure probes
(piezoresistive)
–CO
2probe
(2 beam infrared sensor)
– CO probe
Socket 2:
– Combined probe for humidity
(capacitive)
and temperature
(NTC or Ni 10000)
– 3-function probe for
humidity (capacitive),
temperature (NTC) and velocity
(ball)
RS232: PC connection
12V: Mains connection
12V
2
RS232
1

7
The symbols on the top line are explained below
Name of input socket and parameter
Displays reading in line 1
Name of input socket and parameter
Displays reading in line 2
Displays measurement functions
Explanation of symbols:
Counter for the log number in the memory.
When saving manually: number of a measurement saved.
When saving automatically: number of a measurement series.
This counter is needed in order to be able to find single logs or a
measurement series when reading the memory.
Counter for saving a measurement cycle (is only required with
automatic saving).
The measurement cycle in a measurement series can be found.
Manual saving of a single measurement by pressing the save
button .
Automatic saving program has been set up.
Saving is activated by pressing the button.
Symbol for reading contents of memory on display.
Symbol for deleting memory contents
If this symbol appears, the printing function is activated.
The symbol flashes while data is being transmitted. You can
print on the desktop printer by pressing the print button .
Shows capacity of battery and rechargeable battery.
If the inner segment no longer appears (symbol flashes), the bat-
tery has to be changed or the rechargeable battery has to be
recharged. The instrument switches itself off automatically after
1 minute.
Instrument description
Display
M. 00
N. 0000

8
Overview of controls
1.
Current measurement
Select reading in
the first line
Select reading in
the second line
Save manually or automatically,
depending on setting (5.)
Print readings
2.
Measurement functions
4.
Parameter settings
Selected The setting functions are activated in accordance with the reading testo testo
parameter selected - flashing cursor in display (See 1.): 645 445
°C System adjustment with EEPROM probe X
(4.1) Reset - system adjustment X
%Humidity probe (0636.9740 and 0636.9715)/ X X
(4.2) Checks and adjusts 3-function probe (0635.1540)
td Select calculated humidity parameters: td°C dew point X X
(4.3) g/m3 - absolute humiidty, g/kg - degree of humidity, J/g - enthalpy
m/s, mbar Differential pressure probes: initialisation, activation/deactivation X
m3/h m/s, m3/h in addition to mbar
(4.4) Velocity probes: activation/deactivation m3/h in addition to m/s X
Change cross-section input for an activated volume flow measurement X
ppm Switch between ppm and vol% with CO2X
(4.5) Initialisation of CO probe
HOLD
Freeze values
MAX
Display maximum values
MIN
Display minimum values
MEAN•
Multi-point mean calculation
Update values
Calculate mean
Reset mean
MEAN
Timed mean calculation
Start and end
Calculate mean
Reset mean
ESC
Location
Manual
saving
Print
readings
3.
Location
1Buttons to
select
99 location
...
Connect probe
corresponding to
connection assignment
(rear of instrument)

9
Overview of controls
MAN
Activate
manual
saving
Activate - deactivate
automatic switch-off function
Select power supply
battery/rechargeable battery
Setting: Date
Setting: Time
Unit selection
°C °F
Parameter setting for absolute
pressure and density compensation
AUTO
Program
automatic
saving
• Select meas.
cycles
• Set
measurement
rate
OUT
Read memory
contents on
display with
printing option
CLEAR
Clear memory
Note: Everything
in the memory is
deleted
5.
Memory
settings
6.
Instrument configuration
m/s fpm [ft/min] (testo 445)
Factory reset
Print parameters
hPa mbar psi
in W [ýH2O] (testo 445)
°C, %, Abs.mbar,
rho-g/m3,Pitot tube factor
1.
Current measurement
Simultaneously
m3/h m3/min m3/s
l/s cfm [ft3/min](testo 445)
Note:
Flashing display is activated and is
confirmed by pressing .
Connect probe
corresponding to
connection assignment
(rear of instrument)

10
Switching on / Selecting parameters / Saving / Printing
1. Current measurement
Connect measurement probes
Current readings - different,
depending on probe(s)
connected.
Battery / rech.
battery power
Segment test
It is possible to activate the following functions during mea-
suring at the touch of a button.
Save readings
Manual or automatic saving is determined by the
save setting (Chapter 5)
Print readings.
All of the readings, made available by the probes connected
to socket 1 and 2, on both lines of the reading display can
be called up with the exception of the value selected in the
other line.
Scroll with button in line 1:
Select socket.
Select parameter.
If this button in multi-function probes is pressed
repeatedly, it is possible to select the parameter (°C,
m/s...) to be displayed.
Scroll with button in line 2:
Select socket.
Select parameter.
If this button in multi-function probes is pressed
repeatedly, it is possible to select the parameter (°C,
m/s...) to be displayed.
There are different processing options available in the
menus described below corresponding to the
parameters selected.
Example of a reading:
I/0
VBAT
8.5
1
Location
Duct 1
Location
Line 1
Line 2
58.06
21.80
1:
1:
M.05
MAN
N.0017
m/s
hPa
58.06
1: m/s
Line 1
Line 2
Selected
socket
Parameter
Reading
Note on printing:
A distance 0f 0.5 m should not be exceeded in order to
guarantee problem-free data transfer. Objects between
instrument and printer prevent the data from being
transferred. Please observe notes in the instruction manual
on the printer.

11
2. Meaurement functions
Hold/Max/Min
Freezing values
See multi-point/timed
mean calculation
Current measurement
Maximum readings since the
measurement began
Minimum readings since the
measurement began
58.06
21.60
1HLD
1HLD
M.05
MAN
N.0017
m/s
hPa
58.06
21.80
1:
1:
M.05
MAN
N.0017
m/s
hPa
73.37
34.80
1MAX
1MAX
M.05
MAN
N.0017
m/s
hPa
56.62
20.00
1MIN
1MIN
M.05
MAN
N.0017
m/s
hPa
Hold
Max/Min
Mean
Hold
Max/Min
Mean
Hold
Max/Min
Mean
Hold
Max/Min
Mean
Save reading
Print reading
Save maximum
measured value
Print maximum
measured value
Save measured
value
Print measured value
ESC
Location

Hold
Max/Min
Mean
12
2. Measurement functions
Multi-point mean calculation Mean•
Only for parameter in the 1st line
Multi-point mean calculation
The mean is only calculated for the para-
meter selected in the first line.
Exception:
Selection of volume flow (see note on
page 13)
25.21
0
1:
OOKKMEAN
M.05
MAN
N.0017
m/s
•
25.21
5
MEAN
MMEEAANNNNEEWW
M.05
MAN
N.0017
m/s
•
Select parameter required.
Update values.
Calculate mean
Save mean
Print mean
Number of updated
values
Mean
Current measurement
58.06
21.80
1:
1:
M.05
MAN
N.0017
m/s
hPa
Hold
Max/Min
Mean
Hold
Max/Min
Mean
Hold
Max/Min
Mean
New mean
calculation possible
ESC
Location

55.20
00:15
1:
GGOOMEAN
M.05
MAN
N.0017
m/s
1:
EENNDDMEAN
M.05
MAN
N.0017
m/s
00:10

13
2. Measurement functions
Timed mean calculation Mean 
Only for parameter in the 1st line
55.21
00:05
MEAN
MMEEAANNNNEEWW
M.05
MAN
N.0017
m/s


Timed duration of
mean calculation
Mean
Select required reading.
Start timed mean calculation
Finish timed mean calculation.
Continue timed mean calculation
or
calculate mean.
Save mean.
Print mean.
New mean
calculation possible
or
Hold
Max/Min
Mean
Current measurement
58.06
21.80
1:
1:
M.05
MAN
N.0017
m/s
hPa
Hold
Max/Min
Mean
Hold
Max/Min
Mean
Hold
Max/Min
Mean
Hold
Max/Min
Mean
55.21
00:00
1:
SSTTAARRTT
M.05
MAN
N.0017
m/s

Note on saved or printed logs:
1. The log of a multi-point mean
calculation contains single value,
max. value, min. value and
mean value.
2. The log of a timed mean
calculation contains max. value,
min. value and mean value.
Special solution for volume
flow selected:
3. Any additional velocity values
(m/s) are saved with the volume
flow values in the memory.
ESC
Location
55.17

The location names Location 1 to 99 are specified by the factory.
Additional location names (8 characters) can only be loaded onto
your instrument using PC software.
/ Select location
14
3. Location selection
58.06
21.80
1:
1:
M.05
MAN
N.0017
m/s
hPa
1. Current
measurement
01
Location
Duct 1
50.0
Acm
50.0
Bcm
EESSCC
LLooccaattiioonn
or :
From now on all measured data which is saved or printed is
linked to the selected location or product names.
The cross-section
can only be called up if
volume flow is activated
(testo 445 instrument)
Increase value
Use ESC to go to
selection of cross-
section entry
, AxB, m2, Funnel)
Decrease value
Select digit box
Increase value
Decrease value
Select digit box
Return to current
measurement
ESC
Location

15
System adjustment (only possible in testo 645):
testo 645 and probes with EEPROM (Part no. 0614.xxxx) can
be adjusted to the “zero error adjustment point”. The probe
characteristic saved in the measuring instrument is offset at a
measurement point. This is simply entered in the instrument at
the touch of a button. The following serves as a reference for
offset calculations:
- A Testo calibration certificate or
- A highly accurate Pt100 probe:
An accurate Pt100 probe measures the temperature at socket
2; an inaccurate but quick probe measures in the same
substance; the offset correction must be such that both probes
show the same value.
Example: The reference probe in socket 2 measures 70.0 °C in
the vat.
The probe in socket 1 measures 69.6 °C.
Correct by 0.4 °C!
The respective flashing position can be changed using the
buttons or confirmed by pressing .
Note:
Offset is saved in probes with EEPROM and is automatically
recognised when the instrument is switched on.
In probes without EEPROM, the set offset is located in the
input socket.
The OFFSET value is displayed or printed when switching
on, saving or printing.
Deleting system adjustment: The set OFFSET is reset to 00.0.
System adjustment
Current measurement
4. Parameter settings
CCAALLRe
RREESSEETTCAL
1:
69.6
70.0
11::
2:
M.05
MAN
N.0017
°C
°C
70.0
00.4
1:CAL
OFFSET
M.05
MAN
N.0017
°C
Current measurement
iThe setting functions are activated in accordance with the rea-
ding selected - flashing cursor in display.

Displaying calculated humidity parameters.
If Testo`s combination humidity probe (e.g. 0636.9740) is
connected, testo 445 and testo 645 display a calculated humidity
parameter in addition to temperature and relative humidity. You can
select from the following parameters:
td°C g/m3g/kg J/g td°C ...
Dew point Absolute Degree Enthalpy
temperature humidity of humidity
Degree of humidity and enthalpy are pressure-dependent
parameters. Absolute pressure has to be set (See 6. Instrument
configuration -Parameter setting).
The respective selected parameter flashes.
Select
Confirm selection and return to measurement..
The selected humidity parameter is displayed.
Switch between ppm and vol% if a CO2probe is connected
(only possible in a testo 445 instrument).
ppm vol% ppm ...
The respective selected parameter flashes.
Select
Confirm selection and return to measurement.
16
4. Parameter settings
Adjusting: humidity probes / humidity parameters /
ppm vol%
10.1
22::
M.05
MAN
N.0017
%
12.9
22::
1:
M.05
MAN
N.0017
%
2:
1:
M.05
MAN
N.0017
ppm
CAL %
td°C g/m
ppm vol%
11.1
CAL11.3 %
NO YES
td°C
Adjusting humidity probes
Monitoring and adjusting humidity probes
(0636.9740/0636.9715) or 3-function probe (0635.1540).
To carry out the adjustment, immerse the probe in the
adjustment container belonging to the control and
adjustment set (Part no. 0554.0660). Observe the
instructions given in the Instruction manual (0973.1820)!
NO flashes  No adjustment.
YES flashes  The probe is adjusted.
Switch to YES/NO
Confirm selelction and return to measurement.
The setting functions are activated in accordance with reading
selected - flashing cursor in display.
i
1524
m/s

Initializing pressure probe / Activating velocity and volume flow
17
4. Parameter settings
Differential pressure probe (testo 445 only):
Activating/deactivating m/s, m3/h, in addition to mbar;
initialisation
Velocity probes (testo 445 only):
Activating/deactivating m3/h, in addition to m/s
Zero adjustment of differential pressure probe (hPa) and
return to current measurement.
Switch velocity speed (m/s) in the display on and off.
Switch ON/OFF
The respective flashing setting is confirmed with .
Switch volume flow (m3/h) in the display on and off.
Switch to ON/OFF
OFF flashes  return to measurement.
ON blinkt  Input of duct cross-section:
22.73
11::
2:
M.05
MAN
N.0017
mbarm/s
td°C
hhppaa=0 m/s
ON OFF
m/s
ON OFF
m3/h
Once the cross-section is entered, return to the current volume flow measurement.
/
= scroll
value
=
Next
position
A
B
ØØ AxB FUNNEL
m2
100. cm 0.500 m2
20
100. cm
100, cm
Ø= round duct cross-section;
enter diameter.
AxB = rectangular duct;
enter side lengths A and B.
m2= known cross-section
area in m2; enter cross-
section area.
FUNNEL = Funnel factor in
volume flow funnel used
(See Instruction manual on
volume flow funnel).
...
...
The setting functions are activated in accordance with
reading line selected - flashing cursor in display.
i

18
5. Memory settings
Overview
4 memory settings are possible. Select the required saving option
by pressing :
MAN AUTO OUT CLEAR MAN ...
The symbol corresponding to the selection appears in the top line.
The function is activated with .
1. Current measurement
MEMORY
MAN
AUTO
OOUUTTCLEAR
MMAANNAUTO AAUUTTOOOUT CCLLEEAARRMA
MEMORY
MEMORY
MEMORY
ESC
Location
ESC
Location
   
Parameter settings
(See Chapter 4).
Press the button to get to the memory settings mode.
Confirm flashing save symbol via button.
58.06
21.80
1:
1:
M.05
MAN
N.0017
m/s
hPa
i

19
5. Memory settings
Manual / Automatic saving
19665
21.85
1:
1:
M.05
MAN
N.0017
m3/h
m/s
19665
1:
1:
M.05 N.0017
m3/h
m/s
AUTO
AUTO
MAN
Manual saving:
Each time is pressed a log of the measurement is saved in
the instrument and includes measured values, location, date and
time. The counter in the top left corner of the display shows the
number of logs saved for this location.
Saving a log with timed or multi-point mean calculation :
The log includes MIN value, MAX value and mean of the
measurement and also single values in multi-point mean
calculations.
AAUUTTOOOUT
MORY
660
AUTO
CYCLE-N.
00
01:30
AUTO
CYCLE h
min sec


M.06 N.0001
AAUUTTOO
Cancel saving procedure.
Starts automatic saving again.
An additional measurement series is
added.
EESSCC
LLooccaattiioonn
MEMORY
MAN
MMAANNAUTO
AUTO
Automatic saving:
When this saving function is set, the instrument automatically
accepts the measured values at fixed intervals and saves them
(=logger operation).
The number of measuring cycles (CYCLE-N.) to be saved and
intervals (CYCLE) have to be programmed:
1. Cycle-N.
The instrument automatically offers the maximum possible number
of measuring cycles. Set required number using
/ / .
Confirm set value by pressing .
2. Cycle
Select interval in which the measured values are to be saved. The
blinking position can be changed using .
Confirm set value by pressing .
Automatic saving is started by pressing . The symbol flashes
until the programmed measurement series is accepted.
ESC
Location

20
5. Memory settings
Reading or printing memory contents
OUT
1. Reading out or printing memory contents:
If the “OUT” display is flashing and the button is pressed,
printing of the complete memory contents is started. Cancel
printout by pressing the button.
2. Selecting the location:
If is activated selection options appear in the display to select
the required location. Select location by pressing .
If printing is activated by pressing at this point, all of the logs
(measurement series and cycles) for this location are printed.
Cancel printout by pressing the button.
3. Selecting the log:
Confirm the location selected above by pressing .
The M.0x counter flashes in the display.
Select the log no. by pressing .
activates a printout of the selected measurement log.
Press to display the values measured.
Cancel printout by pressing the button
4. Selecting the measurement cycle: (only possible if a
measurement log consists of a measurement series):
Confirm the measurement log selected above by pressing .
The N.0x counter flashes in the display.
Select the measurement cycle by pressing .
activates a printout of the selected measurement cycle.
The button enables you to go back one step.
EESSCC
LLooccaattiioonn
01:13
1998
M.055N.0017
Pizza
01.01
79.7
°C
M.055N.001177
1:
79.7
°C
M.055N.0017
11::
OOUUTTCLEAR
MEMORY
01
Location
Duct 1
Press the button to access the memory settings
mode. Confirm flashing save symbol via the
button. Cancel printing by pressing the button.
i
ESC
Location
ESC
Location
ESC
Location
ESC
Location
ESC
Location