United Electric Controls 360 Series User manual

IM360 Series-01
Type 360 Series
Models 360, 361, 362
Explosion-Proof
Pressure Switches
Please read all instructional literature carefully and thoroughly before starting. Refer to the final page for the listing of
Recommended Practices, Liabilities and Warranties.
GENERAL
BEFORE INSTALLING, CHECK THE SENSOR MODEL SELECTED FOR
COMPATIBILITY TO THE PROCESS MEDIA IN CONTACT WITH 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 USE IN CLASS I, DIVISIONS 1 &
2, GROUPS A, B, C AND D; CLASS II, DIVISIONS 1 & 2, GROUPS E, F AND
G; CLASS III; OR NON-HAZARDOUS LOCATIONS ONLY. -50 °C (-58 °F) ≤
Tamb. ≤ 95 °C (203 °F), ENCLOSURE TYPE 4X.
THIS EQUIPMENT IS ATEX CERTIFIED FOR EQUIPMENT CATEGORY 2.
SUITABLE FOR APPROPRIATE USE IN GAS ZONE 1 AND DUST ZONE 21
APPLICATIONS.
0539 DEMKO 04 ATEX 0334782X
II 2 G EEx d IIC T6
II 2 D T+85 °C
-50 °C ≤ Tamb. ≤+80 ºC, IP66
The 360 Series pressure switch utilizes a diaphragm or piston sensor to detect a
pressure change. The response, at a predetermined set point actuates an SPDT
or DPDT snap-acting switch, converting a pressure signal into an electrical signal.
Set point may be adjusted by turning the adjustment mechanism according to
procedures outlined in Part II – Adjustments.
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 MAXIMUM PRESSURE 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 occasionally sub-
jected, which causes no permanent damage (e.g., start-up testing). The units
may require re-calibration.
THESE PRODUCTS DO NOT HAVE ANY FIELD REPLACEABLE PARTS. ANY
SUBSTITUTION OF COMPONENTS MAY IMPAIR SUITABILITY FOR CLASS I,
DIVISION 1.
THE EPOXY RESIN SHALL NOT BE SUBJECTED TO A TEMPERATURE
GREATER THAN 125°C.
Part I - Installation
Tools Needed
3/4 - 1" Open end adjustable wrench
MOUNTING
ALWAYS LOCATE UNITS WHERE SHOCK, VIBRATION AND AMBIENT
TEMPERATURE FLUCTUATIONS ARE MINIMAL. DO NOT MOUNT IN AMBIENT
TEMPERATURE AREAS EXCEEDING 203°F (IF UL/cUL APPROVAL IS
APPLICABLE) OR 180 °F (IF ATEX APPROVAL IS APPLICABLE). IF SEVERE PRESSURE
SURGES ARE EXPECTED, CONSIDER THE USE OF A PRESSURE SNUBBER.
MOUNT USING PRESSURE CONNECTION: ALWAYS USE A WRENCH ON
PRESSURE CONNECTION WRENCH FLAT. (SEE FIGURE 1).
UNIT MAY BE MOUNTED IN ANY POSITION. IF UNIT IS TO BE SET AFTER
MOUNTING, VERIFY THAT ADJUSTMENT OPENING IS ACCESSIBLE TO THE
OPERATOR.
1/2” NPT Male Electrical Connection
When panel mounting, mount through 7/8” clearance hole in panel. Hold in place with
serrated 1/2" conduit nut. Always support the unit by holding a wrench on the hex.
WIRING
DISCONNECT ALL SUPPLY CIRCUITS BEFORE WIRING UNIT. ELECTRICAL
RATINGS STATED IN LITERATURE AND ON NAMEPLATE MUST NOT BE
EXCEEDED. OVERLOAD ON A SWITCH CAN CAUSE FAILURE ON THE FIRST
CYCLE.
WIRE IN ACCORDANCE WITH LOCAL AND NATIONAL ELECTRICAL CODES.
BY THE INSTALLATION, THE WIRES SHALL BE PROTECTED AGAINST
MECHANICAL DAMAGE. E.G. BY USE OF A CONDUIT.
DIN CONNECTOR (OPTION M515) IS NOT APPROVED FOR CLASS I, DIV. 1
HAZARDOUS LOCATIONS/FLAMEPROOF ATMOSPHERES.
THE WIRING TO THE PRESSURE SWITCH MUST ONLY BE CONNECTED IN
THE SAFE AREA OR BY AN APPROVED TERMINAL BOX CERTIFIED TO
EN 50 018 OR EN 50 019 FOR HAZARDOUS LOCATIONS/FLAMEPROOF
ATMOSPHERES.
1/2" NPT Male conduit connection is provided on top of the unit with 72” of color
coded and marked 18 AWG lead wires. Unit is available with SPDT or DPDT output.
Terminals SPDT DPDT
SWT1 SWT2
Common Brown Brown Yellow
Normally Closed Red Red Black
Normally Open Blue Blue Violet
Ground Green Green
DIN Connector with 4 Male Terminals (figure 3)
Wire in accordance with local and national electrical codes. Connector conforms to
DIN 43650. Use a mating DIN connector (female type). Coding:
Terminals
Terminal #1 Common
Terminal #2 Normally Closed
Terminal #3 Normally Open
Ground
UNITED ELECTRIC
CONTROLS
Installation and Maintenance
Instructions

RECOMMENDED PRACTICES AND WARNINGS
United Electric Controls Company recommends careful consideration
of the following 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 under-
stood.
• 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 acceptable on a limited basis (e.g., start-
up, testing) but continuous operation must be restricted to the
designated adjustable range. Excessive cycling at maximum pressure
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 malicious 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. Orient unit
so that moisture does not enter the enclosure via the electrical
connection. When appropriate, this entry point should be sealed to
prevent moisture entry.
• Unit must not be altered or modified after shipment. Consult UE if
modification 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 applications where damage could endanger property or
personnel.
• For all applications, a factory set unit should be tested before use.
• 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 mate-
rial 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 36 months
from the date of manufacture by the Seller. Seller shall not be obligated
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 Ave. P.O. Box 9143, Watertown, MA 02471
Tel: [phone] Fax: [phone]
http://www.ueonline.com
figure 1
Type Process
Connection
Dim A Wrench Flat
(Dim B)
360 1/4" NPT 9/16 3/4
360 1/2" NPT 1-1/16 1
361 1/4" NPT 1-1/8 3/4
361 1/2" NPT 1-1/2 1
361 SF-250-CX 1-1/8 15/16
362 1/4" NPT 1-1/16 3/4
362 1/2" NPT 1-1/2 1
Dimensions
Standard Configuration
ADJUSTMENT
WHEEL
ADJUSTMEN
T
WHEEL
figure 2
IM360 Series-01
Part II - Adjustments
Tools Needed
Flathead screwdriver
1. Connect control to pressure source.
2. Loosen screws on front, removing cover. (See figure 1)
3. Connect power to leads.
4. With the aid of a screwdriver, turn adjustment wheel left (clockwise) to
increase setting, or right (counter clock-wise) to decrease setting. (See figure 2).
For setting on RISE, apply desired pressure and turn adjustment left (clockwise) until
switch clicks (circuit across N.O. and COM terminals closes).
For setting on FALL, apply pressure equal to normal system operating pressure. Reduce
source pressure to setpoint value. Turn adjustment right (counter clockwise) until switch
clicks (circuit across N.C. and COM terminals closes).
2-1/2"
"
figure 3
FGS1.5M0204