Table of Contents
Advertisement
2.4.2 Pump Test
2.4.2.1 This test is conducted using the test setup shown in Figure C. The
2.4.2.1.1 Close valves 1 and 2.
2.4.2.1.2 Fill tank with water.
2.4.2.1.3 Connect Model 668-400-2 into setup as indicated.
2.4.2.1.4 Open valve 1 completely and valve 2 partially.
2.4.2.1.5 Actuate circuit breaker if required.
2.4.2.1.6 Energize Model 668-400-2 by pressing start button on switch-light
2.4.2.1.7 Slowly close valve 2 until indicator light shuts off (motor stops). At
2.4.2.1.8 Re-energize Model 668-400-2 by holding start button down. Close
2.4.2.1.9 Slowly open valve 2. Pump should re-energize at 12-20 psi (.83-
2.4.2.1.10 Close valves 1 and 2. Add one hand pump to test setup between
PO Box 8975, Vancouver, WA 98668-8975 • Phone: 360/253-2008 • Fax: 360/253-8294
2 Howard Road, Eaton Socon, St.
using two screwdrivers, one on either side. If magnet assembly is
out of radial alignment, replace assembly.
purpose of the test is to confirm proper operation. If pump fails on any
step, refer to Troubleshooting.
assembly to establish initial system pressure. Release start button.
Indicator light should remain on (motor running).
that moment, pressure gauge should read 22 psi (1.52 bar) to 24
psi (1.66 bar).
valve 2 completely. Pressure should not read higher than 25 psi
(1.73 bar). On releasing start button, indicator light should shut off
(motor stops).
.38 bar) automatically. Indicator light should come on. Continue to
open valve 2 until indicator light shuts off (motor stops). At that
moment, pressure gauge should read 4 psi (0.28 bar) to 8 psi (0.55
bar).
pressure gauge and valve 2. Open valve 1 completely and valve 2
partially. Energize pump and run for one minute to establish water
in test system. De-energize pump and close valves 1 and 2.
Disconnect tubing from valve 1 (pump side). Establish system
pressure with hand pump, allowing pressure to build slowly to 25
psi (1.73 bar). While watching tubing disconnected from valve 1,
raise system pressure slowly toward 30 psi (2.07 bar). Water
should start to leak from tubing at 30 psi (2.07 bar).
MICROPUMP, INC.
A Unit of IDEX Corporation
MICROPUMP
A Subsidiary of Micropump, Inc.
Neots, Cambridgeshire, PE 19 8ET England, • Phone: 011-44-1480-356600 • Fax: 011-44-
LIMITED
356300
Page 16 of 33
1480-
Advertisement
Table of Contents
