Dwyer Instruments L6EPS-S-S-3-S, L6EPS-S-S-3-L, L6EPS-S-S-3-C, L6EPS-S-S-3-A, L6EPS-S-S-3-O User manual

Bulletin E-20
Model L6
Specifications - Installation and Operating Instructions
Explosion-Proof; UL and CSA Listed ­Class I, Groups *A, B, C, & D Class II, Groups E, F & G Directive 94/9/EC (ATEX) Compliant for II 2 G Ex d IIC T6 Gb Process Temp≤75°C IECEx Compliant for Ex d IIC T6 Gb Process Temp≤75°C
*(Group A, stainless steel body only)
Float Switch
SPECIFICATIONS Service: Liquids compatible with
wetted materials.
Wetted Materials:
Float: Solid polypropylene or 304
SS.
Lower Body: Brass or 303 SS. Magnet: Ceramic. External Float Chamber (Tee):
Matches lower body choice of brass or 303 SS. Other: Lever Arm, Spring, Pin, etc.:
301 SS. Temperature Limit: -4 to 220°F (-20 to 105°C) Standard, MT high temperature option 400°F (205°C)(MT not UL, CSA, ATEX, IECEx and KC). ATEX compliant AT, IECEx IEC and KC option ambient temperature -4 to 167°F (-20 to 75°C) process temperature: -4 to 220°F (-20 to 105°C).
Pressure Limits: See next page. Enclosure Rating: Weatherproof and
Explosion-proof. Listed with UL and CSA for Class I, Groups A, B, C and D; Class II, Groups E, F, and G. (Group A on stainless steel body models only).
0518 II 2 G Ex d IIC T6 Gb Process Temp≤75°C. EC-Type Certificate No.: KEMA 04ATEX2128. ATEX Standards: EN 60079-0: 2009; EN60079-1: 2007. IECEx Certified: For Ex d IIC T6 Gb Process Temp≤ 75°C.
IECEx Certificate of Conformity:
IECEx DEK II.0039. IECEx Standards: IEC 60079-00: 2007; IEC 60079-1: 2007. Korean Certified (KC) for Ex d IIC T6 Gb Process Temp≤75°C. KTL Certificate Number: 2012-2454-75. Switch Type: SPDT snap switch standard, DPDT snap switch optional. Electrical Rating: UL models: 5A @ 125/250 VAC (V~). CSA, ATEX and IECEx models: 5A @ 125/250 VAC (V~); 5A res., 3A ind. @ 30 VDC (V ). MV option: .1A @ 125 VAC (V~). MT option: 5A @125/250 VAC (V~). [MT option not UL, CSA, ATEX or IECEx]. Electrical Connections: UL models: 18 AWG, 18˝ (460 mm) long. ATEX/CSA/IECEx models: terminal block.
Upper Body: Brass or 303 SS. Conduit Connection: 3/4˝ male NPT
standard, 3/4˝ female NPT on junction box models. Process Connection: 1˝ male NPT on models without external float chamber, 1˝ female NPT on models with external float chamber. Mounting Orientation: Horizontal with index arrow pointing down. Weight: Approximately 1 lb (.5 kg) without external float chamber, 1.75 lb (.8 kg) with external float chamber.
Specific Gravity: See next page.
Example
Series Construction Upper Body Material Lower Body Material Circuit (Switch) Type Line Size Tee and Float Options
Switch Options
Options
* Options that do not have ATEX, IECEx or KC.
L6L6EPEPB
B
S
33B
MT
B S
B S
S D
0 A B C H L S
MV MT
AT CSA IEC KC GL ID JCT JCTLH TBC TOP
L6EPB-B-S-3-B-MT level switch; brass upper housing, brass lower housing, brass tee with Polypropylene spherical float, SPDT snap switch, and high temperature option Series L6 level switch Explosion proof and weatherproof Brass 303 Stainless Steel Brass 303 Stainless Steel SPDT DPDT 1˝ NPT No Tee, Solid Polypropylene Spherical Float* No Tee, 304 SS Cylindrical Float Brass Tee, Solid Polypropylene Spherical Float* No Tee, 304 SS Spherical Float Brass Tee, 304 SS Spherical Float 303 SS Tee, 304 SS Spherical Float 303 SS Tee, Solid Polypropylene Spherical Float* Gold Contacts on snap switch for dry circuits (see specifications for ratings) High Temperature switch rated 400°F (205°C) (see specifications for ratings)* ATEX approved construction (with JCT option standard) CSA approved construction (with JCT option standard)* IECEx approved construction (with JCT option standard) KC approved construction (with JCT option standard) Ground Lead* Customer Information on standard nameplate Weatherproof and explosion-proof junction box* Weatherproof and explosion-proof junction box, left side Terminal Block Connector* Top Mounted (No tee models only)*
Attention: Units without the “AT” suffix are not Directive 94/9/EC (ATEX) compliant. These units are not intended for use in potentially hazardous atmospheres in the EU. These units may be CE marked for other Directives of the EU.
W.E. ANDERSON DIV., DWYER INSTRUMENTS, INC.
Find Quality Products Online at: sales@GlobalTestSupply.com
www.GlobalTestSupply.com
AXIMUM PRESSURE CHART
FRONT VIEW DETAIL SIDE VIEW DETAIL
CLAMP
SCREW
LOCKWASHER
CONDUCTOR
M
Model Number
L6EPB-B-S-3-A L6EPB-B-S-3-B
6EPB-B-S-3-C
L
6EPB-B-S-3-H
L
6EPB-B-S-3-O
L
6EPB-S-S-3-A
L L6EPB-S-S-3-C L6EPB-S-S-3-L L6EPB-S-S-3-O
6EPB-S-S-3-S
L
Float
Cylindrical SS Polypropylene
ound SS
R
ound SS
R
olypropylene
P
ylindrical SS
C Round SS Round SS Polypropylene
olypropylene
P
ressure Rating
P psig (kg/cm
200 (13.8) 250 (17.2)
50 (24.1)
3
50 (17.2)
2
000 (69)
1
00 (13.8)
2 350 (24.1) 350 (24.1) 2000 (138)
000 (138)
2
ETTED MATERIALS CHART
W
2
)
Model
B-S-3-A
-S-3-B
B
-S-3-C
B
-S-3-H
B
-S-3-O
B S-S-3-A S-S-3-C S-S-3-L
-S-3-O
S
-S-3-S
S
Brass
X X X X X
Bronze
X
X
Ceramic
X X X X X X X X X X
Polypropylene
X
X X
X X
301SS
X X X X X X X X X X
303SS
X X X X
304SS
X
X
X X X
INSTALLATION
Unpack switch and remove any packing material found inside lower housing or float
hamber.
c
witch must be installed with body in a horizontal plane and arrow on side pointing
S down.
If switch has an external float chamber (tee), connect it to vertical sections of 1˝ NPT pipe installed outside vessel walls at appropriate levels. If unit has no external
loat chamber, it must be mounted in a 1˝ NPT half coupling welded to the vessel
f
all. The coupling must extend through the wall.
w
Inspect and clean wetted parts at regular intervals.
ELECTRICAL CONNECTIONS
onnect wire leads in accordance with local electrical codes and switch action
C
equired. N.O. contacts will close and N.C. contacts will open when liquid level
r
auses float to rise. They will return to “normal” condition on decreasing liquid level.
c Black = common, Blue = N.O. and Red = N.C.
For units supplied with both internal ground and external bonding terminals, the ground screw inside the housing must be used to ground the control. The external bonding screw is for supplementary bonding when allowed or required by local code. When external bonding conductor is required, conductor must be wrapped a minimum of 180° about the external bonding screw. See below. Some CSA listed models are furnished with a separate green ground wire. Such units must be equipped with a junction box, not supplied but available on special order.
Note: ATEX, IECEx and KC units only: The temperature class is determined by the maximum ambient and or process temperature. Units are intended to be used in
mbient of -20°C≤ Tamb ≤75°C. Units may be used in process temperatures up to
a
05°C providing the enclosure and switch body temperatures do not exceed 75°C.
1
he standard Temperature Class is T6 Process Temp ≤75°C.
T
Refer to Certificate No: IECEx DEK 11.0039 for conditions of safe use for IECEx compliant units.
ll wiring, conduit and enclosures must meet applicable codes for hazardous
A
reas. Conduits and enclosures must be properly sealed. For outdoor or other loca-
a
ions where temperatures vary widely, precautions should be taken to prevent con-
t densation inside switch or enclosure. Electrical components must be kept dry at all times.
CAUTION: To prevent ignition of hazardous atmospheres, disconnect the device
rom the supply circuit before opening. Keep assembly tightly closed when in use.
f
AINTENANCE
M
Inspect and clean wetted parts at regular intervals. The cover should be in place at all times to protect, the internal components from dirt, dust and weather and to maintain hazardous location ratings. Disconnect device from the supply circuit before opening to prevent ignition of hazardous atmosphere. Repairs to be con­ducted by Dwyer Instruments, Inc. Units in need of repair should be returned to the factory prepaid.
EC-Type Certificate IECEX and KC Installation Instructions: Cable Connection
The cable entry device shall be certified in type of explosion protection flameproof enclosure “d”, suitable for conditions of use and correctly installed. For Ta ≥ 65°C cable and cable gland rated ≥ 90°C shall be used.
Conduit Connection
An Ex d certified sealing device such as a conduit seal with setting compound shall be provided immediately to the entrance of the valve housing. For Ta ≥ 65°C wiring and setting compound, in the conduit seal, rated ≥ 90°C shall be used.
Find Quality Products Online at: sales@GlobalTestSupply.com
www.GlobalTestSupply.com
MODEL L-6 FLOAT SWITCH — DIMENSION DRAWINGS
Ø
1 [25.40]
1
MALE NPT
1
-3/4
[44.45]
3/4
[
19.05] 6
[
152.40]
Ø
1-1/16
[26.99]
3/4 MALE NPT
C
ONDUIT
CONNECTION
Ø1
[
Ø25.40]
FLOAT
1
MALE NPT
1-27/32
[
46.83]
1
-1/16
[26.99]
6
-1/2
[165.10]
Ø1-1/16
[
Ø26.99]
3/4 MALE
NPT CONDUIT
C
ONNECTION
Ø
1 [25.40] x 2 [50.80]
L
ONG FLOAT
1 MALE NPT
2-7/8
[73.03]
1-1/16
[26.99]
6-1/2
[165.10]
Ø1-1/16
[26.99]
3/4 MALE NPT CONDUIT
CONNECTION
3-5/64
[78.18]
1-9/64
[28.97]
2 [50.80]
HEX
8-9/16
[217.49]
Ø1-1/16
[26.99]
3
/4 MALE NPT
C
ONDUIT
C
ONNECTION
1
FEMALE NPT
T
YP 2 PLACES
3-1/2
[88.90]
4-3/8
[111.13]
Ø3-11/32
[84.93]
4-1/4 [107.95]
CLEARANCE FOR
COVER REMOVAL
2-15/16
[74.63]
25/32
[19.86]
Ø3-3/8 [85.73]
3/4 FEMALE NPT
CONDUIT CONNECTION
TYP 2 PLACES
SPDT DPDT
olypropylene Float
P
ound Stainless Steel Float
R
Cylindrical Stainless Steel Float With External Chamber (Tee)
Terminal Connections CSA, ATEX Enclosures
Find Quality Products Online at: sales@GlobalTestSupply.com
CSA, ATEX Conduit Enclosure
www.GlobalTestSupply.com
Limited Warranty: The Seller warrants all Dwyer instruments and equipment to be free from defects in workmanship or material under normal use and service for a peri­od of one year from date of shipment. Liability under this warranty is limited to repair or replacement F.O.B. factory of any parts which prove to be defective within that time or repayment of the purchase price at the Seller’s option provided the instruments have been returned, transportation prepaid, within one year from the date of pur­chase. All technical advice, recommendations and services are based on technical data and information which the Seller believes to be reliable and are intended for use by persons having skill and knowledge of the business, at their own discretion. In no case is Seller liable beyond replacement of equipment F.O.B. factory or the full pur­chase price. This warranty does not apply if the maximum ratings label is removed or if the instrument or equipment is abused, altered, used at ratings above the maximum specified, or otherwise misused in any way.
THIS EXPRESS LIMITED WARRANTY IS IN LIEU OF AND EXCLUDES ALL OTHER REPRESENTATIONS MADE BY ADVERTISEMENTS OR BY AGENTS AND ALL OTHER WARRANTIES, BOTH EXPRESS AND IMPLIED. THERE ARE NO IMPLIED WARRANTIES OF MERCHANTABILITY OR OF FITNESS FOR A PARTICULAR PURPOSE FOR GOODS COVERED HEREUNDER.
Buyers Remedies: THE BUYER’S EXCLUSIVE AND SOLE REMEDY ON ACCOUNT OF OR IN RESPECT TO THE FURNISHING OF NON-CONFORMING OR DEFECTIVE MATERIAL SHALL BE TO SECURE REPLACEMENT THEREOF AS AFORESAID. THE SELLER SHALL NOT IN ANY EVENT BE LIABLE FOR THE COST OF ANY LABOR EXPENDED ON ANY SUCH MATERIAL OR FORM ANY SPECIAL, DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES TO ANYONE BY REASON OF THE FACT THAT IT SHALL HAVE BEEN NON-CONFORMING OR DEFECTIVE.
©Copyright 2015 Dwyer Instruments, Inc. Printed in U.S.A. 1/15 FR# 440726-00 Rev. 13
W.E. ANDERSON DIV., DWYER INSTRUMENTS, INC.
Find Quality Products Online at: sales@GlobalTestSupply.com
www.GlobalTestSupply.com
Loading...