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Idiomas disponibles
Idiomas disponibles
LANGUAGE
It is possible to choose on language between the following: ENGLISH, DEUTSCH, NEDERLANDS, PORTUGUES,
ESPANOL, ITALIANO, FRANCAIS.
TYPE OF INST RUMENT
RACER SERENITY are supplied as pH or Redox mode however it is possible to change to either pH or Redox..
DOSAGE TYPE
pH mode can be ACID (pH -) or ALKALINE (pH +), while for the REDOX instrument it is OXIDANT only
AUX INPUT
It is possible to enable a 230V input coming from a recirculation pump. Using Terminals 1 and 2, and enabling the AUX
INPUT, will enable an additional relay output of 230 Vac (terminals 4 and 5).
PUMP FLOW RATE
It is possible to choose change flowrate between 1.5 l/h and 3 l/h. This change will change the cycle time of the motor (300 or
450 seconds).
PUMP ACTIVATE TIME
In this menu, we are able to modify the time proportionality of the pump. This is achieved by defining the number of seconds
of activation of the peristaltic in proportion with the signal coming from the ph/Rx electrode.
The operating activation time for pH is 3 to 30 seconds for each 0.1 pH.
The operating activation time for RX is 1 to 15 seconds per mV.
Example for pH
Setpoint: 7,2 pH
Electrode measure: 8,00 pH
ACTIVATION TIME: 20 sec.
FLOW RATE OF THE PUMP 1,5 l/h (motor cycle time 300 sec.)
T on (dosage time) = (8 - 7,2) = 0,8 = (8 decimal pH of
increase); 8 x 20 = 160 secondi
T off (pause time) = 300 – 160 = 140 secondi
OVERDOSE ALARM
It is possible to set an overdose alarm, relating to the number of litres dosed during 4 hours of operation.
It is also possible to deactivate the alarm for 24h or 48h, in the next menu called OFF ALARM
The possible choices are: Active Alarm (immediately), Alarm Off 24h, Alarm off 48h.
This delay is automatically disabled if the instrument is powered off.
N° CALIBRATION POINT
For pH it is possible to choose between one or two calibration points. For REDOX instrument, the calibration point is always
1, signal point).
Example for Redox
Setpoint: 700 mV
Electrode measure: 680 mV
ACTIVATION TIME: 9 sec.
FLOW RATE OF THE PUMP 3,00 l/h (motor cycle time 450
sec.)
T on (dosage time) = (700 - 680) x 9 = 180 secondi
T off (pause time) = 450 – 180 = 270 secondi
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