Teledyne 8800P - Trace moisture analyzer - portable transmitter - Manual (Page 18)

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
(55
PROM check sum failed.
po
w
e
r on
te
s
ts
HI
(55
RAM write/read test failed. cycle power / replace battery,
%
(55 Unidentified power-up failure. if problem persists,
&6)
EEPROM Check Sum Failed. return to your representative
(55$'
A/D converter failure.
sys
tem
t
e
st
s on
ce pe
r 2
min.
for service.
(555()
Reference voltage for A/D out of spec.
/2%$7
Low battery voltage. replace battery.
LO
51*
TEMP
Instrument low temperature range
has been exceeded. make sure that the unit is at a
HI
51*
TEMP
Instrument high temperature range
has been exceeded.
temperature of -10°C to +50°C.
231
Sensor circuit is open.
d
e
wpoint dis
pl
a
y
s
te
sts
check sensor. wetup sensor to see if it will
react
6$7 Sensor is saturated. dry down the sensor.
6+5
Sensor circuit is shorted. check sensor.
Trying to calculate dewpoint for undefined sensor. select sensor and autocal.
'5<
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.
autocal
te
s
ts
38/287
Prompting to pull out the sensor from desiccant to
perform autocal.
see autocal instructions.
6(1/2
Sensor reading is ‘too’ low to be from a saturated
sensor, for autocal.
(55((3
EEPROM write cycle not completed.
misc
el
laneou
s
if this persists, return for service.
/2&
Attempting to modify a locked unit. unlock unit, see set-up mode.
,1287 Sensor is neither in nor out of desiccant. pull out or push in the sensor actuator
;(1
Turn on message, Xentaur (Greek ; =X)
%<(
Turn off message, good- bye.