COSA Xentaur Xentaur XPDM - Manual (Page 19)

page 16
9. Special messages, warnings and error indications
Legend:
denotes a beeping accompaniment to the message.

denotes alternately flashing messages.
DISPLAY EXPLANATION REQUIRED ACTION
LO


PROM check sum failed.
p
o
w
e
r
o
n
te
s
ts
HI


RAM write/read test failed. cycle power / replace battery,
%

Unidentified power-up failure. if problem persists,



EEPROM Check Sum Failed. return to your representative




A/D converter failure.
s
yst
em
t
e
st
s on
ce
p
e
r 2 mi
n.
for service.



Reference voltage for A/D out of spec.




Low battery voltage. replace battery.
LO



TEMP
Instrument low temperature range
has been exceeded. make sure that the unit is at a
HI



TEMP
Instrument high temperature range
has been exceeded.
temperature of -10°C to +50°C.



Sensor circuit is open.
d
e
w
p
o
in
t
d
is
p
la
y
s
t
e
s
ts
check sensor. wetup sensor to see if it will
react
 

Sensor is saturated. dry down the sensor.



Sensor circuit is shorted. check sensor.

Trying to calculate dewpoint for undefined sensor. select sensor and autocal.

Viewing dewpoint while sensor is in desiccant dry-
storage.
a reminder that the dewpoint in the desic-
cant is being measured.

Trying to calibrate an undefined sensor.
a
u
to
c
a
l t
e
s
ts


Prompting to pull out the sensor from desiccant to
perform autocal.
see autocal instructions.


Sensor reading is ‘too’ low to be from a saturated
sensor, for autocal.



EEPROM write cycle not completed.
mi
sc
el
la
ne
ou
s
if this persists, return for service.

Attempting to modify a locked unit. unlock unit, see set-up mode.


Sensor is neither in nor out of desiccant. pull out or push in the sensor actuator


Turn on message, Xentaur (Greek Ξ =X)


Turn off message, good-bye.