VIEWS AND DIMENSIONS (
Fig. 1)
2.0 - BT-MA & BTB-MA SERIES METERING PUMPS
Dosing pumps with a microcontroller and a seven segment display allows a accurate injection pulses choice.
2.1 - OPERATION
The metering pump is activated by a teflon diaphragm mounted on a piston of an electromagnet.
When the piston of the electromagnet is attracted, a pressure is produced in the pump body with an expulsion
of liquid from the discharge valve.
Once the electric impulse is finished a spring brings the piston back to the initial position, with a recall of liquid
through the suction valve.
The operation is simple the pump does not need lubrication, therefore maintenance is reduced almost to zero.
The materials used for the construction of the pump make it particularly suitable for aggressive. liquids.
The metering pump has been designed to feed liquids with capacities from 0 to 80 l/h and pressures from
0 to 20 bar (depending on the model selected).
The capacity can be changed by a special manually-operated control which regulates the flow rate from 0 to 100%.
OPERATING FUNCTIONS:
The pump can be programmed to operate manually from 0 to 100% of the flow-rate.
137
288,7
222,8
108
94
244
198
122
122
127,5
168
23
23
10
10
183
203
•
20
•
BT-MA (wall mounting) BTB-MA (basement mounting)
2.2 - TECHNICAL SPECIFICATIONS
• The casing is in aluminium protected with PTFE (BT-MA) or fireproof antiacid plastic casing (BTB-MA).
• Control panel protection assured by a transparent policarbonate cover with gasket.
•
Standard power supply (fluctuations not to exceed ±10%):
230 Vac 50-60 Hz single phase.
•
Optional power supply (fluctuations not to exceed ±10%):
240 Vac 50-60 Hz single phase;
110 Vac 50-60 Hz single phase
.
• The products are manufactured according regulation.
•
Environmental Conditions: IP 65 protection, altitude up to 2000m, ambient temperature 5C to 40C, maximum
relative humidity 80% for temperatures up to 31°C decreasing linearly to 50% relative humidity at 40°C.
•
Pollution degree 2
•
Overvoltage cat. II
•
Service connector for level probe and flow sensor
Manual
ACCESSORY FUNCTIONS:
Flow alarm A flow sensor (optional) checks the pump flow and activates an alarm should the flow stop
Reference injections 0 - 100 (BTB, BT) - Max injection difference 0 - 100 (BTB, BT)
