GHM Delta OHM HD2304.0, Руководство по эксплуатации

Страница: 8 / 28

HD2304
- 8 -
V1.8
Pressed t oget her wit h t he ON/ OFF key, during t urn on, t he
Aut oPowerOff funct ion is
disabled ( see t he descript ion of t he ON/ OFF key) .
The
UN I T
key is used for t he follow ing funct ions:
•
UN I T:
by pressing t his key t he unit of m easurem ent of t he input probe is
select ed: t he unit of m easurem ent will appear in t he upper par t of t he display;
t he m easured value will be displayed in t he cent ral line. By repeat edly pressing
t he
UN I T key, t he desired unit of m easurem ent can be select ed bet ween t he
follow ing:
o
Pressure m easurem ent unit :
Pa ( Pascal)
hPa ( hect oPascal)
kPa ( kiloPascal)
m bar ( m illibar)
bar ( bar)
at m ( at m osphere)
m m Hg ( m illim et er of m ercury)
m m H
2
O ( m illim et er of wat er)
kgf/ cm ² ( kilogram - force/ square cent im et er)
PSI
inchHg ( inch of m ercury)
inchH
2
O ( inch of wat er)
o
Tem perat ure m easurem ent unit
:
° C ( Celsius degrees)
° F ( Fahrenheit degrees)
•
MEN U: t he m enu includes the Probe Type item . This item displays the t ype of
probe connected to the instrum ent's input ( see chapter xx) :
- t he m enu is opened by pressing sim ult aneously D ATA+ UN I T : t he first it em of
t he inst rum ent program m ing m enu w ill appear;
- use t he

and

arrows ( respect ively locat ed above t he HOLD and REL keys) t o
m odify t he displayed value;
- press D ATA/ EN TER t o con fir m t he m odificat ion and go ont o t he next it em ;
- press CLR/ ESC t o ca n ce l t he m odificat ion;
- t o e x it t he m enu, press t he UN I T/ M EN U key again.
By pressing t his key, t he ZERO of t he pressure probes is perform ed.
•
I n t he different ial pr essure probes leave t he t wo input s open, so t hat t hey
det ect t he sam e pressure.
•
I n t he relat ive pressure ( com pared t o t he at m osphere) probes, leave t he input
open, so t hat it det ect s t he at m ospheric pr essure.
•
I n t he absolut e pressure probes, apply t he vacuum by using a suit able pressure
calibrat or.
UN I T/ M EN U k e y
Ta st o ZERO