Dwyer HM28 - Manual (Page 5)

5
Switching on
Normal
(differential)
and
analogue/hold
Normal
(absolute)
and differential
Zoom
Min/Max
Leak rate
Tendency
(absolute)
Record 1)
Print Record
print
hold
print
print
print
print
print
start/stop
print
quick keystroke:
max. output speed
Keystroke
approx.1s:
single or fast
output start/stop
printing
zero
display
zero
diff
zero
display
zero
(reset)
zero
display
clear
memory
Display example
Max. Range:
200 mbar
Full scale error
0.05 %
123.45 mbar
====== or
HLD
123.4 mbar
1013.2 mbar
DIF 1013.2 mbar
123.45
MAX 150.0 mbar
MIN 100.0 mbar
1234.5 mbar
LEK 2.1 /min
1013.2 mbar
TND - 15.7 /min
REC 432.1 mbar
STOP 30 s MEM 1
REC 432.1 mbar
RUN 30 s MEM 321
432.1 mbar
STOP 30 s MEM 901
PRINT RECORD
PUSH PRINT
PRT 432.1 mbar
321 00:13:30
PRT
Record stopped
Notes
Measuring range
displayed in desired
unit
Accuracy class as a %
of full scale reading
Only with differential
or relative pressure
models
Hold, store indicated
value
Only with absolute
pressure mode Zero
sets Diff to 0
Measurement in large
figures
With absolute pressure,
reset to actual value
Only with Diff./Rel.
(unit/time unit)
Only with absolute
pressure (unit/time unit)
If measurement
memory cleared
Recording runs up to
964 values
Recording stopped
Appears only if values
are stored
Printing / display with
time
Recording stopped
1) at 70 bar the measurements are stored in [bar]