Checkline DTMX - Manual (Page 6)

9.23 Low Battery
When the “B” indicator appears on the
display, the batteries are low. If data is
stored in memory, download it before
replacing batteries as the data will be lost
when the batteries are removed.
9.30 Standard Deviation & Average
Formulas
The formula indicated is used to calculate
the Standard Deviations & Average of all
the data stored in the Extended Memory
when the DTMX is configured for:
• On-Demand Data Logging Mode
• Continuous Data Logging Mode
9.40 Changing Units of Measure
The DTMX is supplied with the Units of
Measure set for Grams (g) or Kilograms
(Kg) depending upon the selected range.
The units can be changed to Pounds (lb)
or Ounces (oz) by pressing the
keys simultaneously.
27
Standard Deviation Value
Average Value
√
( X
i
– X )
n –1
n
∑
∑ X
i
2
Changing Units of Measure
Press both keys
simultaneously
STORE
POWER
EXIT
+
+ STORE
POWER
EXIT
Units Indicator
Grams gf (momentarily)
Kilograms Kgf (momentarily)
Pounds lb (continuously)
Ounces oz (continuously)
3. Open the 3-roller system by pushing the
Thumbpiece forward until the outer
rollers extend beyond the filament guide.
Position the DTMX so that the process
material contacts the Filament Guide
and passes between the outer rollers
and the middle sensing roller.
4. Release the Thumbpiece SLOWLY until
it returns to its original position. Do
not let it snap back as this could
effect the calibration and damage
the instrument. The display will begin
to show tension readings.
5. Press the key to start and stop
the Standard Memory system.
The “M” indicator will blink on and off
indicating that the memory is active and
up to 100 readings will be stored
continuously or on-demand, as indicated
in Sections 6.10, 6.30 and 6.40.
6
STORE
Filament
Filament guide
Thumbpiece