Lovibond RD 125, Instruction Manual

Page: 20 / 56

20 RD 125_7b 01/2020
4. Function schematics
After switching on the instrument with the main on/of
f switch, the heater is not active. Pr
ess the HEA
T-key for heating up (status 1).
After heating up to the selected temperatur
e the timer starts after pr
essing ST
AR
T-key (status 3).
Status
Heat-LED
Temp.-LED
Time-LED
Heat-key
Start-key
Temp-/T
ime-
key
Heater
next possible status
1. W
aiting for
pr
essing HEA
T-key
O
ff
last selected temperatur
e
last selected time-span
Pr
ess: =>
Status 2
Ignor
e
Selection possible
O
ff
After pr
essing
HEA
T-key:
Status 2
2. Heating up
On
Flashing
On
Pr
ess =>
Status 1
Ignor
e
Selection possible
Heating up or Cooling down
If selected temperatur
e is
reached: Status 3
3. W
aiting for
pr
essing ST
AR
T-key
On
On
On
Pr
ess =>
Status 1
Pr
ess for t =
30, 60, 120
Selection possible
Temperatur
e-
contr
olled for
stability of the selected temperatur
e
After pr
essing
Start-key: Status 4 (t
≠∞
)
Ignor
e for
t=
∞
If selected temperatur
e will
be changed: Status 2 If temperatur
e
to dif
fer
ent to
selected one: Status 2
4. T
ime: Count
down
On
On
Flashing
Pr
ess =>
Status 1
Ignor
e
Ignor
e
Stable Temperatur
e
End of count down: Status 1
Heat-LED
On:
Heating up or stabilizing selected temperatur
e.
Of
f:
Heater is of
f
Temp.-LED
Flashing:
Selected temperatur
e is not r
eached (heating up or cooling down)
Together with HEA
T-LED On:
Selected temperatur
e is r
eached
Together with HEA
T-LED Of
f:
Indicates selected temperatur
e without indication of the r
eal temperatur
e of the r
eactor
Time-LED
Flashing:
Count down function
On:
indication of selected time-span without count down function.