ABLE 117 Series Installation and operating instructions

Installation & Maintenance Instructions
117 Series
Pressure Switch
Ty p es: H117, H117K
Reading Office
Cutbush Park, Danehill, Lower Earley,
Reading, Berkshire. RG6 4UT. UK.
Tel: [phone]
Email: [email protected]
Aberdeen Office
Unit 6 Airside Business Park, Kirkhill Industrial Estate,
Dyce, Aberdeen. AB21 0GT. UK.
Tel: [phone]
Email: [email protected]
Internet: www.able.co.uk
e-procurement: www.247able.com
Registered in England No: 01851002
VAT No: GB 417 2481 61

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GENERAL
BEFORE INSTALLING, CHECK THE SENSOR MODEL SELECTED FOR
COMPATIBILITY BETWEEN THE PROCESS MEDIA AND THE SENSOR
AND WETTED PARTS.
MISUSE OF THIS PRODUCT MAY CAUSE EXPLOSION AND PERSONAL
INJURY. THESE INSTRUCTIONS MUST BE THOROUGHLY READ AND
UNDERSTOOD BEFORE UNIT IS INSTALLED.
THIS EQUIPMENT IS SUITABLE FOR CLASS I, DIVISION 2,
GROUPS A,B,C,D; CLASS II, DIVISION 2, GROUPS F AND G; CLASS III;
OR NON-HAZARDOUS LOCATIONS ONLY.
The 117 series pressure switch utilizes a bellows or diaphragm sensor to
detect a pressure change. The response, at a pre-determined set point,
actuates or deactuates a SPDT or DPDT snap-acting switch, converting the
pressure signal into an electrical signal. Control set point may be varied by
turning the internal adjustment hex according to procedures outlined below
(see adjustment-Part II.)
PROOF PRESSURE* LIMITS STATED IN THE LITERATURE AND ON
NAMEPLATES MUST NEVER BE EXCEEDED, EVEN BY SURGES IN THE
SYSTEM. OCCASIONAL OPERATION OF UNIT UP TO PROOF PRES-
SURE IS ACCEPTABLE (E.G., START-UP, TESTING). CONTINUOUS OPERATION
SHOULD NOT EXCEED THE DESIGNATED OVER RANGE PRESSURE.
*PROOF PRESSURE
THE MAXIMUM PRESSURE TO WHICH A PRESSURE SENSOR MAY BE OCCA-
SIONALLY SUBJECTED, WHICH CAUSES NO PERMANENT DAMAGE (E.G., START-
UP, TESTING). THE UNIT MAY REQUIRE RE-GAPPING.
WARNING: EXPLOSION HAZARD - THESE PRODUCTS DO NOT HAVE
ANY FIELD REPLACEABLE PARTS. ANY SUBSTITUTION OF COMPO-
NENTS MAY IMPAIR SUITABILITY FOR CLASS I, DIVISION 2.
Part I - Installation
Tools Needed
Adjustable Wrench
Screwdriver
Hammer (for alternate wire knockouts)
MOUNTING
WARNING: EXPLOSION HAZARD - DO NOT DISCONNECT EQUIPMENT
UNLESS POWER HAS BEEN SWITCHED OFF OR THE AREA IS KNOWN
TO BE NON-HAZARDOUS.
Please read all instructional literature carefully and thoroughly before starting. Refer to the final page for the listing of Recommended
Practices, Liabilities and Warranties.
INSTALL UNIT WHERE SHOCK, VIBRATION AND TEMPERATURE
FLUCTUATIONS ARE MINIMAL. MOUNT UNIT SO THAT MOISTURE IS
PREVENTED FROM ENTERING THE ENCLOSURE. IF UNIT IS BEING
INSTALLED WHERE HEAVY CONDENSATION IS EXPECTED, VERTICAL
MOUNTING (PRESSURE CONNECTION DOWN) IS REQUIRED. DO NOT MOUNT IN
AMBIENT TEMPERATURES EXCEEDING PUBLISHED LIMITS.
ALWAYS HOLD A WRENCH ON THE PRESSURE HOUSING HEX WHEN
MOUNTING UNIT. DO NOT TIGHTEN BY TURNING ENCLOSURE. THIS
WILL DAMAGE SENSOR AND WEAKEN SOLDERED OR WELDED
JOINTS.
Controls may be mounted and operated in any position. They may be sur-
face mounted via the two mounting ears on either side of the enclosure, or
directly to a rigid pipe by using the pressure connection. Low pressure and
differential pressure units, models 520-535, 540-548, are also available with
an optional surface mounting bracket. Should the control be installed where
condensation is expected, vertical mounting is recommended as a means of
keeping water away from switch terminals.
WIRING
DISCONNECT ALL SUPPLY CIRCUITS BEFORE WIRING UNIT. WIRE
UNITS ACCORDING TO NATIONAL AND LOCAL ELECTRICAL CODES.
MAXIMUM RECOMMENDED WIRE SIZE IS 14 AWG. THE RECOM-
MENDED TIGHTENING TORQUE FOR FIELD WIRING TERMINALS IS
7 TO 17 IN-LBS.
ELECTRICAL RATINGS STATED IN LITERATURE AND ON NAMEPLATES
MUST NOT BE EXCEEDED. OVERLOAD ON A SWITCH CAN CAUSE
FAILURE ON THE FIRST CYCLE.
Remove the two screws retaining the cover and cover gasket. A 1/2” NPT
conduit connection is provided on the left hand side of the enclosure. Two
cast-in 7/8” diameter knockouts for electrical conduit are located on the side
and back of enclosure (see dimensional drawings, opposite page). These can
easily be knocked out by placing a blade of a screwdriver in groove and tap-
ping sharply with a hammer. The terminal block terminals are clearly labeled
“Common”, “Normally Open” and “Normally Closed”. For units supplied with
DPDT, all terminals are labeled and the following color code applies.
SPDT DPDT
SWT1 SWT2
Common Violet Violet Yellow
Normally Closed Black Black Red
Normally Open Blue Blue Orange
Grounding screw and clamp (cast in symbol) are provided. Keep the wire as
short as possible to prevent interference with the plunger.
117 Series
Pressure Switch
Types: H117, H117K
IMP117-07
UNITED ELECTRIC
CONTROLS
Installation and Maintenance
Instructions

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GAPPING
1) Loosen adjustment lock.
2) Turn 5/8” hex adjustment screw in, to approximately mid range. This
puts a load on the sensor and exposes the plunger flats. Using a 1/4”
wrench on the plunger and a 3/16” wrench on the plunger hex screw,
turn hex screw out from plunger until switch actuates. If switch is already
actuated, turn plunger hex screw in, until switch deactuates. Turn hex
screw in from this point. (see chart below for Flats and approximate
Gap.)
3) Check set point according to Part II Adjustments.
4) Connect wires and replace cover securely.
Models Flats Approx. Gap
171-174 2-2 1/2 .0085 to .0105”
183-194 1-1 1/2 .004 to .006”
483-494 1-1 1/2 .004 to .006”
358-376 5-6 .020 to .025”
700-706 3 1/2 - 4 .014 to .017”
521-525 2-2 1/2 .0085 to .0105”
531-535 2-2 1/2 .0085 to .0105”
540-548 2-2 1/2 .0085 to .0105”
560-567 1-1 1/2 .004 to .006”
Part II - Adjustments
Tools Needed
5/8” Open End Wrench
ALL MODELS HAVE A TWO-PIECE ADJUSTABLE PLUNGER (SEE
FIGURE 1). THIS FEATURE IS CHARACTERIZED BY A 3/16” HEX
HEAD SCREW INSTALLED IN THE 1/4” HEX PLUNGER. THE LENGTH
OF THIS ASSEMBLY IS ADJUSTED AT OUR FACTORY AND IS CRITICAL
TO THE FUNCTION OF THE CONTROL DURING NORMAL ADJUSTMENT, THESE
COMPONENTS SHOULD NOT BE DISTURBED.
For set point adjustments and recalibration, connect control to a calibrated
pressure source.
Remove pressure switch cover. Adjust set point by turning 5/8” hex adjust-
ment screw clockwise (in) to raise set point, or counter-clockwise (out) to
lower set point. Secure adjustment screw by tightening adjustment lock (see
dimensional drawings.) Controls include uncalibrated reference scales for
high, low or mid range settings.
NOTE: Models 190-194 and 490-494 (welded stainless steel diaphragms).
These models are application sensitive. For rising pressure applications, set
point should be adjusted from low pressure up to set point. For falling pres-
sure applications set point should be adjusted from high pressure down to
set point. Wide pressure cycling above and below set point can cause control
band shift.
Adjustment Procedure for H117, H117K
Figure 1

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Models 188-194,488-494
Models 520-525
Models 171-174
Models 218, 358-376, 700-706
Model 540-543
Models 544-548 Models 565-567Models 560-564
Models 530-535
H117, H117K
Dimensions
Dimension A
Models Inches mm NPT
171-174 7.63 193,7 1/2”‘
183-186 7.56 192,1 1/2”
188, 189 6.63 168,4 1/2”
190-194 6.63 168,4 1/2”
218 6.56 166,7 1/4”
358-376 7.00 177,8 1/4”
483-486 7.56 192,1 1/2”
488, 489 6.63 168,4 1/2”
490-494 6.63 168,4 1/2”
520-525 8.44 214,4 1/2”
530-535 8.00 203,2 1/2”
540-543 8.47 215,0 1/8”
544-548 8.53 216,6 1/8”
560-564 6.63 168,4 2” Sanitary
fitting
565-567 6.63 168,4 1-1/2” San.
fitting
700-706 6.63 168,3 1/4”
Models 183-186, 483-486

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FGS35001104
RECOMMENDED PRACTICES AND WARNINGS
United Electric Controls Company recommends careful consideration of the fol-
lowing factors when specifying and installing UE pressure and temperature units.
Before installing a unit, the Installation and Maintenance instructions provided
with unit must be read and understood.
• To avoid damaging unit, proof pressure and maximum temperature limits stated
in literature and on nameplates must never be exceeded, even by surges in the
system. Operation of the unit up to maximum pressure or temperature is accept-
able on a limited basis (e.g., start-up, testing) but continuous operation must be
restricted to the designated adjustable range. Excessive cycling at maximum pres-
sure or temperature limits could reduce sensor life.
• A back-up unit is necessary for applications where damage to a primary unit
could endanger life, limb or property. A high or low limit switch is necessary for
applications where a dangerous runaway condition could result.
• The adjustable range must be selected so that incorrect, inadvertent or mali-
cious setting at any range point cannot result in an unsafe system condition.
• Install unit where shock, vibration and ambient temperature fluctuations will
not damage unit or affect operation. When applicable, orient unit so that mois-
ture does not enter the enclosure via the electrical connection. When appropri-
ate, this entry point should be sealed to prevent moisture entry.
• Unit must not be altered or modified after shipment. Consult UE if modifica-
tion is necessary.
• Monitor operation to observe warning signs of possible damage to unit, such
as drift in set point or faulty display. Check unit immediately.
• Preventative maintenance and periodic testing is necessary for critical applica-
tions where damage could endanger property or personnel.
• Electrical ratings stated in literature and on nameplate must not be exceeded.
Overload on a switch can cause damage, even on the first cycle. Wire unit
according to local and national electrical codes, using wire size recommended
in installation sheet.
• Do not mount unit in ambient temp. exceeding published limits.
LIMITED WARRANTY
Seller warrants that the product hereby purchased is, upon delivery, free from
defects in material and workmanship and that any such product which is found to
be defective in such workmanship or material will be repaired or replaced by Seller
(Ex-works, Factory, Watertown, Massachusetts. INCOTERMS); provided, however, that
this warranty applies only to equipment found to be so defective within a period
of 24 months from the date of manufacture by the Seller. Seller shall not be obli-
gated under this warranty for alleged defects which examination discloses are due
to tampering, misuse, neglect, improper storage, and in any case where products are
disassembled by anyone other than authorized Seller’s representatives. EXCEPT FOR
THE LIMITED WARRANTY OF REPAIR AND REPLACEMENT STATED ABOVE, SELLER
DISCLAIMS ALL WARRANTIES WHATSOEVER WITH RESPECT TO THE PRODUCT,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR
ANY PARTICULAR PURPOSE.
LIMITATION OF SELLER’S LIABILITY
Seller’s liability to Buyer for any loss or claim, including liability incurred in
connection with (i) breach of any warranty whatsoever, expressed or implied, (ii) a
breach of contract, (iii) a negligent act or acts (or negligent failure to act) committed
by Seller, or (iv) an act for which strict liability will be inputted to seller, is limited to
the “limited warranty” of repair and/or replacement as so stated in our warranty of
product. In no event shall the Seller be liable for any special, indirect, consequential
or other damages of a like general nature, including, without limitation, loss of
profits or production, or loss or expenses of any nature incurred by the buyer or any
third party.
UE specifications subject to change without notice.
UNITED ELECTRIC
CONTROLS
180 Dexter Avenue, P.O. Box 9143
Watertown, MA 02471-9143 USA
Telephone: [phone] Fax: [phone]
http://www.ueonline.com