Seametrics SES User Manual
Page 4
MAINTENANCE and REPAIR
LT-65200186-082014
8/20/2014
Seametrics Incorporated • 19026 72nd Avenue South • Kent, Washington 98032 • USA
(P) 253.872.0284 • (F) 253.872.0285 • 1.800.975.8153 • www.seametrics.com
Rotor Replacement.
There is only one moving part to this me-
ter. The bearings are made of ruby, which rarely wears out or
needs replacement unless they have been physically damaged
by severe shock. The shaft is integrally molded into the rotor,
and shaft and rotor are replaced as one part. (You may wish
to replace the bearings, using the bearing removal tool, while
the meter is disassembled for rotor replacement). To replace
the rotor, disconnect the meter and remove the four screws
that hold the cover in place. Lift the cover and bearing plate
and remove the rotor (see parts diagram below).
When putting in the new rotor, be sure that the ends of the shaft
are in both bearings before tightening the cover. The rotor can
be easily dropped into the bottom bearing. Starting the shaft
into the upper bearing requires a bit of care. It is easier if the
rotor is spinning, which can be done by lightly blowing into a
port. When the upper bearing plate drops into place, hold it
down and check for free spinning (by blowing lightly) before
replacing the cover. Check that the O-ring is in its seat on the
bearing plate before replacing the cover. Replace the cover,
insert the four cap screws and tighten.
Sensor Replacement.
The sensor ordinarily does not need
replacement unless it is electrically damaged. If replacement is
necessary, unthread the sensor by hand. Thread the replace-
ment sensor in and tighten by hand.
SENSOR CONNECTIONS
(BLACK) Power (-)
(WHITE) Signal
(RED) Power (+) 5-24 Vdc
SES SENSOR CONNECTION
SES PARTS LISTING
1
Body, Stainless Steel
-050 (1/2 inch)
100683
-075 (3/4 inch)
100684
-100 (1 inch)
100685
2
Bearing Assembly (2 required)
100230
Bearing Removal Tool (not shown)
100372
*3
Rotor Assembly, Kynar/Carbide
100034
*4
O-Ring, Teflon-Coated Viton
100973
5
Cover (Stainless Steel) SES -050/-075
100082
5 Cover (Stainless Steel) SES -100
100800
6
Hex Screw (4 required)
100693
7
Sensor
100419
Page 4
*Alternate materials available for compatibility
with a variety of chemicals.
Reconnect the sensor according to the diagram below.
6
5
4
2
3
2
7
1