DROPSA SMART3 - Technical Specifications; Technical Information; Hydraulic System Overview

3
4. TECHNICAL INFORMATION
Note. The informationrefer to the temperature of use of +20°C (+68°F)
(1)
2800 rpmwith no load
* If a different or special lubricant product is used, please contact Dropsa to ensure its suitability.
4.1 HYDRAULIC SYSTEM
As illustrated, all pumps are
equipped with:
- An integrated by-pass for
pressure-regulating
- Arelief valve for pressure
- An electrical minimum level
- A lubricant charging filter
- A pre-calibrated pressure
switch
- Apressure gauge.
GENERAL INFORMATION
Empty weight
4.5 Kg
ELECTRIC INFORMATION
Motor power supply
110V –2p– 50/60 Hz 140/175W- (2800/3500 rpm)
230V – 2p– 50 Hz 135 W- (2800 rpm)
230V – 2p– 60 Hz 170 W- (3500 rpm)
24 V DC - 55 W
(1)
- (2800 rpm)
OTHERS INFORMATION
Degree of Pump protection
IP 55
Pumping system
Gear pump
Pump flow rate (free flow)
180 cc/min @ 2800 rpm
220 cc /min @ 3500 rpm
Maximum working pressure
30 bar
Outlet connection
G1/8” BSP
Reservoir capacity
2L/3L
Minimum level – Float switch option, for oil only
With NC in case of liquid
Minimum level – DropsaOptiLev Optical sensing
system for oil and fluid greases.
NPN or PNP short-circuit protected signal, "off" in case of minimum
level
Filter
1000 µ filtering degree
By-pass
Adjustable 0÷30 bar –precalibrated25 bar
Pressure switch
10÷20 bar - precalibrated to 18 bar
Working Temperature
+ 5  + 60 C
Working Humidity
90 % rel. humidity
Permitted lubricants *
Mineral lubricating oil 32 cSt-320 cSt ;
Grease max NLGI000;
Storage temperature
-20  +80 °C
Sound Pressure Level
< 70 dB(A)
Max working time in continuous operation
1 min
MIN STANDBY time
5 times T-on
Dropsa recommends a 4 AMP overload fuse