Selecta DE-1626 Manual De Instrucciones página 27

INSTRUCTION MANUAL CODE 80191 REV D JAN/2020
START
Placement for the collector flask to add
drops to near the graduated mark.
J
.P. SELECTA s.a.u.
5.3 Distilling
On pushing the «START» key, the unit starts sample distillation.
This opens coolant water circuit and iniciates the steam generation.
After 30s approx the sample starts to boil and its steams are driven to the cooler
glassware for its condensation. The distilled is collected on the graduated flask or
on the Erlenmeyer.
When the level on the collected distilled will be near the sensor, the distillation will
be stopped automatically and the outlet valve closed to avoid that the level exceeds
the mark of the graduated flask. Approximately 180ml will be collected.
Push the «STOP» key if you want to stop the sample distillation process.
5.4 Levelling
The level sensor will stop the distillation approximately at 180 ml.
Remove a little bit (see picture), the collector flask to add some drops of distilled
to adjust up to near 200ml (an accurate adjust to 200ml must be done later when
solution will be at 20ºC).
On pushing «ADD» key, the outlet valve is opened to allow passing of some drops
of distilled from the cooler glassware. Push it some times to adjust the level near
the flask mark.
ADD Proceed similar with the Erlenmeyer flask.
5.5 Alarms
To avoid dangerous situations for the operator or to protect the unit life, it includes
some safety systems and some alarms:
(1) Alarm: «No water for steam generator»
• If the lamp (1) lights on sporadically :This means that water level control has
detected a low level of water on the steam generator and automatically starts the
water pump to get the suitable level of water.
• If the lamp (1) lights on permanently: This means that water level control has
detected a low level of water on the steam generator for a long time and it automati-
cally refills with water. This situation stops distillation. Probably the water reservoir
is empty.
If the alarm blocks the unit, reset the unit by ON/OFF button.
(2) Heater status lamp.
This lamp lights when the heater is ON.
(3) Alarm: «Overtemperature» on the steam generator
This red lamp lights on when an overtemperature on the steam generator has switched
the safety thermostat.
It inhibits all distiller functions. And cuts the power supply to the heating element.
Once it is switched, it must be let to get cool for some minutes. Solved the problem
that causes the switching and rearmed the safety thermostat by pushing the central
button. The safety thermostat is located on the electrical box, right hand side cover
must be removed to get it.
The safety thermostat switching is due to low level of water on the steam generator,
probably because the water reservoir is empty or due to water pump malfunction.
Ctra. NII Km 585.1 Abrera 08630 (Barcelona) España
e-mail: selecta@jpselecta.es - website: http://www.jpselecta.es
(It can be modified without notice)
Tel 34 937 700 877 Fax 34 937 702 362
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