Dwyer 32DZ - Manual (Page 38)

949-1318 Page 38 of 40 June, 2000
SP OUTPUTS
Set point
outputs active
Set point
output(s)
inactive
Set point
output(s)
inactive.
Set point
outputs
inactive
Set point
outputs active
Set point
outputs
inactive
Alarm active
ACTION REQUIRED
Input signals may normally go
above or below range ends. If
not, check input and correct.
To reset use the INDEX &
ENTER keys. When InPt (in-
put fault timer) has been set
for a time, the outputs will be
turned off after the set time.
Setting the time to OFF caus-
es the outputs to remain ac-
tive, however UFL or OFL will
still be displayed.
Correct or replace sensor. To
reset use the INDEX & EN-
TER keys.
Correct or replace sensor, or
any element in the control loop
that may have failed. Correct
the problem, and reset the
control by pressing the INDEX
and ENTER keys, or index to
LPbr and press ENTER.
Calibrate the specified input
before putting Instrument in to
service.
Remove the instrument for ser-
vice and / or recalibration. To
reset use the INDEX & ENTER
keys.
Remove the instrument for
service and / or recalibration.
To reset use the INDEX &
ENTER keys.
MEANING
Underflow or Over-
flow: Process value
has exceeded input
range ends.
UFL or OFL will se-
quence to display
one of these mes-
sages if the InPt is
set for a time value.
For RTD inputs RTD
is open or shorted.
For THERMOCOU-
PLE inputs thermo-
couple is open.
The sensor may be
defective, heater
fuse open, heater
open, or the final
power output device
is bad.
Message appears
when input group is
selected other than
the one provided from
the Factory
Check calibration ap-
pears as an alternat-
ing message if the
instrument calibra-
tion nears tolerance
edges.
Check calibration ap-
pears as a flashing
message if the instru-
ment calibration ex-
ceeds specification.
DIAGNOSTIC ERROR MESSAGES
DISPLAY
UFL UFL UFL UFL UFL *
or
OFL OFL OFL OFL OFL *
bAd bAd bAd bAd bAd *
OPEn OPEn OPEn OPEn OPEn *
LOOP LOOP LOOP LOOP LOOP *
CHEC CHEC CHEC CHEC CHEC CAL1 CAL1 CAL1 CAL1 CAL1
or
CHEC CHEC CHEC CHEC CHEC CAL2 CAL2 CAL2 CAL2 CAL2
* Message appears in the display of the affected zone. The output for that zone will
be inactive.