The DigiTOL Power Cells are welded and
hermetically sealed in a stainless stell housing. They are purged with
an inert gas, waterproof, contain no moving parts and provide greatly
increased reliability as a result. The microprocessor that controls
low voltage signals is protected in a sealed environment…only easily
handled digital information is sent to the scale instrument. Power
Cells provide 6,000,000 times the signal strength of conventional load
cells. Only military spec wide temperature range components are used.
No RFI problems. Since each Power Cell contains its own A to D
microprocessor, meaningful diagnostics are inherent in the DigiTOL
system. Troubleshooting and set-up are made easier.
adjustments are made in software via the keyboard… nothing in the pit
or junction box to adjust. Cables stay with the scale… no need to
re-thread them in the event of a change in the Power Cell. They
connect to the Power Cell with a waterproof connector.
||DigiTOL…Sloves Problems Common to Analog
Load Cells |
Solves low voltage analog signal problem.
Signals as low as a millionth of a volt are typically transmitted
by analog load cells. These low voltage signals are easily disrupted
traveling through long cable runs, causing unstable and inaccurate
readings, The DigiTOL output signal is 3 to 4 volts… millions of times
less sensitive to disruption than an analog signal.
problems caused by Radio Frequency Interference.
The low voltage signals of an analog load cell are easily
disrupted by electrical interference and common radio signals. Versions
of the DigiTOL cell designed for use in high interference areas shrug
off such disruptions.
Solves problems caused
by moisture and corrosion.
Where required, DigiTOL cells are hermetically sealed in a tough,
stainless steel case. Moisture and corrosion can’t get in. They work
equally well in hostile and corrosive environments since the digital
data are created within this protected environment.
problems caused by lightning.
DigiTOL cells are far more
resistant to damage caused by lightning or electrical
discharges…especially important in outside scale installations.
Solves problems with off-center loads & temperature
With DigiTOL, the cells are “forgiving” of off-center loading.
What’s more, they automatically compensate for temperature changes.
Solves problems caused by “creep.”
The longer a weight remains on
a load cell, the more chance there is the weight indication might
change. DigiTOL automatically considers the effect of time and
compensates for it using its’ internal electronics.
A digital, stainless
steel, hermetically sealed pin-type load cell is use in truck scales.
load cell is compatible with Mettler-Toledo indicator 8530.
||Values may exceed limits in
certain cases. The combined error of span, linearity error, |
hysteresis will not exceed 70% of the error limits for HB44 and 80% of
the rror limits
according to OIML IR76-1, respectively.
||TC of span, creep, and creep
return for 10,000HB44 typically meet 3000d OIML