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Verfügbare Sprachen
Verfügbare Sprachen
Setting r r efrigerant:
Press right-hand function button (R..., ...T or ---) .
1
- The refrigerant menu is opened and the selected refrigerant flashes.
Set refrigerant:
2
Button functions
·
: Change refrigerant.
OK
·
: Confirm setting and leave refrigerant menu.
esc
·
: Leave refrigerant menu without applying setting.
Settable refrigerants
R...
·
: R-number of the refrigerant according to ISO817.
...T
·
: Special Testo description of certain refrigerants:
---
·
: No refrigerant selected.
Example "Setting refrigerant R401B"
1 Press
or
2 Press function button
Carrying out a measurement
Warning!
Danger o o f i i njury d d ue t t o h h ighly p p ressurized h h ot, c c old o o r p p oisonous
refrigerants!
Before every measurement, ensure that the refrigerant hoses are
undamaged and correctly connected.
Observe permitted pressure range!
Measuring:
The handling steps from the chapter "Preparing measurement" have been
carried out.
Pressurize the instrument.
1
Read off measurement values:
2
For Zeotropic refrigerants (those with temperature glide), the tempera-
tures t
/ t
displayed are those at the end of the phase change
o
c
(evaporation or condensation) of the last component.
The temperature measured must be allocated to the super-heating or
sub-cooling side (function button t
allocation, t
R401B
several times, until
OK
to confirm the setting.
or ∆t
/ t
, or t
oh
oh
sh
cu
1T
2T
= R1270,
= R407D.
flashes.
<--> t
). Dependent on this
oh
cu
or ∆t
/ t
is displayed.
cu
sc
Using the product 9
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