IMP117 11
3
1.63
(41.4 mm)
A
2.34
(59.4 mm)
4.22
(107.2 mm)
with cover
4
(101.6 mm)
1/2 NPT
CONDUIT
0.895
(22.7 mm) DIA.
KNOCK-OUT
0.895
(22.7 mm) DIA.
KNOCK-OUT
ADJUSTMENT
SCREW
2.75
(69.9 mm)
ADJUSTMENT
LOCK
CLEARANCE FOR
1/4 (6.35 mm)
SCREW
2 MOUNTING
HOLES
Cover removed in front view
Part III - Dimensions
Table 1
GAPPING IS FACTORY-SET AND CRITICAL TO THE
FUNCTION OF THE SWITCH. THIS PROCEDURE
SHOULD ONLY BE PERFORMED IF THE PLUNGER HAS
ACCIDENTALLY BEEN ADJUSTED.
❶
Loosen adjustment lock.
❷
Turn 5/8” hex adjustment screw clockwise (left), to
approximately mid range. This puts a load on the sensor and
exposes the plunger flats.
❸
Using a 1/4” wrench on the plunger and a 3/16” wrench
on the plunger hex screw, turn hex screw counter-clockwise
(right) from plunger until switch actuates. If switch is already
actuated, turn plunger hex screw clockwise (left), until switch
deactuates. Turn hex screw clockwise (left) from this point.
(See Table 1 for Flats and approximate Gap.)
❹
Check set according to Part II Adjustments.
❺
Connect wires and replace cover securely.
Models
Flats
Approx. Gap
171-174
2 to 2 1/2
.0085 to .0105”
183-194
1 to 1 1/2
.004 to .006”
483-494
1 to 1 1/2
.004 to .006”
358-376
5 to 6
.020 to .025”
700-706
3 1/2 to 4
.014 to .017”
521-525
2 to 2 1/2
.0085 to .0105”
15737
5 to 6
.020 to .025
531-535
2 to 2 1/2
.0085 to .0105”
540-548
2 to 2 1/2
.0085 to .0105”
565-567
1 to 1 1/2
.004 to .006”
Recommended Practices
• A redundant device is necessary for applications
where damage to the primary device could
endanger life, limb or property. A high or low
limit switch is necessary for applications where
a dangerous runaway condition could result.
•
Monitor operation to observe warning signs of
possible damage to device, such as drift in set
point or faulty display. Check device immediately.
•
Preventative maintenance and periodic testing
is necessary for critical applications where
damage could endanger property or personnel.
All dimensions stated in inches (millimeters)
Dimensional drawings for all models may be found at www.ueonline.com