18
PUMP TYPES
“AMS Analog” series pump capacity can be reduced 10 or 100 times operating the 1/10/100 switch in the frontal panel,
the % marked knob will act on this set capacity.
AMS CO
Constant dosing pump with stroke speed adjustment between 0 and 100% of indicated capacity (see label on pump
type). The % marked knob sets the pump capacity, changing linearly the magnet stroke number per minute. It is strongly
suggested to not operate the pump in the range from 0 to 10%, since there is not a linear correlation with the pump
stroke speed in that range. This pump is specially designed for constant dosing rates. AMS CO pump can be ON/OFF driven
by a LPH or a LCD instrument. To set 2 l/h against 10 bar on a AMS CO 1004 the % marked knob should be set to 50%.
AMS CL
Constant dosing pump with level alarm, provided with a floating magnetic sensor probe. A red led indicates that the pump
stops dosing because the product tank is empty. This pump has the same features and adjustments of the CO type pump.
AMS IC
Proportional/constant pump driven by current signal. Setting the switch on the constant position, the pump has the
same features and adjustments of the CL pump. Setting the switch on the proportional
position, the pump capacity is set proportionally to a given analog current signal; a given linear change of the signal
will be followed by a linear change of capacity.
The current signal accepted range is 0÷20 mA (it can be changed upon demand). The maximum pump capacity requested
by the maximum input signal is set by the % marked knob. The IC pump can be driven by any electronic device (such as
pH-meter, RH-meter, etc) that gives an analog current signal output. This signal must be applied to the bipolar cable provided
with the pump, already internal connected, being care to connections: red wire: positive (+); black wire: negative (-).
LEVEL ALARM
CL, IS, IC, PV and TE type pump are provided with a liquid level alarm to indicate if product tank is empty. The level probe
is connected to the right BNC plug on pump’s bottom panel. The level probe is made of a N.O. reed contact (10VA, 1A max,
230Vac max) closed by a floating magnet housed in a (PP) plastic box. When the product level goes below the minimum
the magnet closes the reed contact. The pump stops and the red LED on pump’s front panel indicates the alarm status.
9. Level alarm - Models
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