Operating instructions

METTLER TOLEDO DE40/50/51 Density Meter 17
4.3 Display
The DE40, DE50 and DE51 density meters have a seven line LCD display with 40 characters
per line. When the power is turned on (power switch on the rear of the instrument), the
following message will appear on the display.
The software version appears for a
short time. This software version can
also be displayed under Setup 3
"Serial/Version".
After a few seconds the main display will appear:
The message "Wait for Reay" will
blink until the cell temperature
reaches the set temperature.
Once the cell temperature has reached the set temperature:
The "No calibration" message
appears if the instrument has not
been calibrated before or if a
Memory Clear has been performed
(see section 10.10 "Memory Clear").
Note: The Oscillation value is the T-value described in section 3.2 "Measurement principle".
You can toggle between all available
units by pressing the <DISPLAY>
key:
- Oscillation (T-value)
- Density [d(t/4, d(t/t)] (1)
- Concentration (2)
- ALCOHOL (3)
- BRIX (3)
(1) Selection of d, d(t/t: Specific Gravity), d(t/4) is done under Calc.Para – Density.
(2) Selection of Concentration is done under Calc.Para – Result.
(3) Selection of ALCOHOL, BRIX is done under Calc.Para – Result, but requires to install the
application from a special Application Memory Card (see section 13).
The instrument
5 place Density Meter
Version X.XX
DE50
0.Method-0 01-01
Temp.(°C) Oscillation
Set 20.00
Cell 21.42
Wait for Ready
0.Method-0 01-01
Temp.(°C) Oscillation
Set 20.00
Cell 20.00
No Calibration
845393
845393
0.Method-0 01-01
Temp.(°C) Density(g/cm3)
Set 20.00
Cell 20.00
No Calibration
0.00120