Keller HP Series, Руководство пользователя, Страница: 6 / 24

3
o
PeratIng
t
He
c
alIbrator
t
urn
-o
n
The calibrator is turned on by pressing the func-
tion key once.
c
onnectIng
t
est
-u
nIts
*
Adapter:
Included in the delivery of the calibrator are
different test-unit adapters, one for each of the
following transmitter types:
– 4…20 mA / 0…20 mA transmitter
– 0…10 V / 0…20 V transmitter
– Pressure switch
Plug the test-unit adapter into socket 14.
e
lectrIcal
c
onnectIon oF
t
est
-u
nIt
*
Select the correct adapter. Wire the transmitter/
switch under test to the adapter. Check that
polarity is observed and that good connections
are made.
P
ressure
c
onnectIon For tHe
t
est
-u
nIt
**
Your test-unit can be connected with the
calibrator via the pressure connection 11a resp.
11b.
P
ressure
g
eneratIon
Attention: To avoid an overpressure within the
oil chamber, the oil refill screw (9) must be open
when operating the calibrator!
Generate pressure with the priming pump (12)
up to approx. 10 bar.
Increase or reduce pressure with screw com-
pressor (10).
d
ecreasIng tHe
P
ressure
1) To return pressure to zero, completely
screw back compressor (10).
2) Open shut-off valve (5).
Do not open (5) when system is under high
pressure!
(Especially when using an external
pres sure source, damage/injury may result).
If you are not able to reach the desired pressure,
read the chapter “Maintenance” on page 17 on
how to completely prime the pressure system.
e
xecutIng
F
unctIons and
c
ommands
Read the following chapter to get acquainted
with the functions.
t
urn
-o
FF
Press the function key until the command o
FF
appears on the display. Release the key imme-
diately and the instrument turns off.
** To avoid leakage and damage of the check valve, the test-unit has to be cleaned prior to connecting it to the
calibrator.