Graco 15J755 User Manual
Instructions
15J755 Sensor Circuit
Option
311603C
To upgrade E-Flo® Electric Circulation Pumps to include the sensor circuit option.
For professional use only.
Important Safety Instructions
Read all warnings and instructions in this manual
and in E-Flo Repair-Parts manual 311594. Save
these instructions.
E-Flo Pump with 15J755 Sensor
Circuit Option installed.
ENG
The following hazardous location listings
apply to the sensor circuit (item 25) only.
Circuit Assembly Intrinsic Safe Control
USC
Conforms to
FM std 3600 &3610
CAN/CSA 22.2 No 157-92
& No. 1010.1-92
for use in Class I Div 1
Group C & D T3
Hazardous locations
Intrinsically Safe (IS) System. Install
per IS Control Drawing No. 288110.
Class I, Division 1, Group C & D T3
Hazardous Locations
Read Instruction Manual Warning: Substitution of components
may impair intrinsic safety.
MIN / MAX TEMP RANGE: 0° - 50°C (32° - 122°F)
EEx ib IIB
FM 06 ATEX 0025U
PART NO.
II 2 G
288343
Intrinsic Safe Input Parameters
Ui
Ii
Pi
Ci
Li
TDC Circuit
15 V
60 mA
200 mW
220 nF
280 uH
SERIES SERIAL
Pressure Circuit
35 V
200 mA
1.4 W
.036 uF
.44 uH
GRACO INC.
P.O. Box 1441
Minneapolis, MN
55440 U.S.A.
Artwork No. 293140
ti8317b
Pressure Relief Procedure
Pressure Relief
Procedure
System pressure can cause the pump to cycle unexpectedly, which could result in serious injury from
splashing or moving parts.
1. Set START/STOP switch to STOP.
2. Push in SECURE DISABLE switch.
3. Open the back pressure regulator and all fluid drain
valves in the system, having a waste container
ready to catch drainage. Leave open until you are
ready to pressurize system again.
4. Check that pressure gauges on fluid supply and
return lines read zero. If gauges do not read zero,
determine cause and carefully relieve pressure by
VERY SLOWLY loosening a fitting. Clear obstruction before pressurizing system again.
Kit Installation
1. Jog the motor to bring the stand side lower to the
bottom of its stroke.
2. Relieve pressure, page 2.
3. Shut off electrical power to the unit.
4. See F
5. See F
IG. 1. Remove two screws (12) and the cover
(32).
IG. 3, page 4. Remove six screws (12), the cir-
cuit board cover (B), and the gasket (33).
12*
Kit Parts
NOTE: Sensor Circuit Kit 15J755 includes all parts to
add the optional sensor circuit to a pump. Parts included
in the kit are marked with an asterisk, for example (12*).
Use all the new parts in the kit.
Ref.
No. Part No. Description Qty
12* 116719 SCREW, 8-32 hex washer head
25 n/a SENSOR CIRCUIT; includes items
25a-25c
25a* n/a PRESSURE TRANSDUCER
25b* n/a TDC SENSOR
25c* n/a CIRCUIT BOARD
32* n/a COVER, side opposite motor
33* n/a GASKET, circuit board
35* n/a CONNECTOR, strain relief, 45°
36* n/a LABEL, calibration
41* 111316 O-RING; chemically resistant fluoro-
elastomer
42* n/a ADAPTER, transducer
43* n/a NUT, transducer
44* n/a CONDUIT, transducer
58* n/a SPACER; brass
14
1
1
1
1
1
1
1
FIG. 1. Remove Cover
1
1
1
1
1
1
32*
12*
ti8317b
Parts designated n/a are not available separately.
2 311603C
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