wtw Oxi 170, Operating Instructions Manual

Page: 26 / 64

Operation Oxi 170
88 ba24105e08 11/2010
CR2
(only with RT and
RT RS option)
z
rEC
°C Measured value range of the REC 2 analog
output (temperature value).
After confirming the
reC
(°C) selection with
<ENTER> you can adapt the upper and
lower final value.
Operating notes:
– The setting is carried out in the order:
upper final value -> lower final value
– Press 1x <ENTER> in between.
The following settings are possible:
(step size 1 °C)
Note: If the range is exceeded, the recorders
output a constant value of 20.5 mA (
OFL
display). The instrument automatically
returns to the defined recorder range when
the value is within the range again.
CRc
REL 1/2
(only with RT and
RT RS option)
z
nF
z
PS
z
FRC
z
UL
.
LL
z
CS
Functions of the freely configurable relays
REL 1 and REL 2.
The configuration of these relays is
described in detail in section 4.6.1.
The REL 1 or REL2 status display shows for
which relay the setting has just been made.
Neither relay has a function when it is
delivered (
nF ).
CRF
REL 1/2
(only with RT and
RT RS option)
z
0
z
C
Switching behavior of the freely configurable
relays REL 1 and REL 2.
"O" (open) = normally closed contact
"
C " (closed) = normally open contact
The switching behavior indicates the state of
the switching contact for an active relay.
This setting only appears if the limit value
control (
UL
.
LL
) function and frozen
measured value (
FRC
) are set for the relay.
The REL 1 or REL2 status display shows for
which relay the setting has just been made.
Setting Selection/Values Explanation
(values in bold typeface = values on delivery)
Upper final value: 25 ... 50 ... 100 °C
Lower final value: -5 ... 0 ... 80 °C