Dwyer L6 - Manual

Bulletin E-20
Specifications - Installation and Operating Instructions
Float Switch
W.E. ANDERSON DIV., DWYER INSTRUMENTS, INC.
P.O. BOX 358 • MICHIGAN CITY, INDIANA 46360 U.S.A.
Phone: 219/879-8000 www.dwyer-inst.com
Fax: 219/872-9057 e-mail: [email protected]
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)
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).
0344 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.
Model L6
Attention: Units without
the “AT” suffix are not Di-
rective 94/9/EC (ATEX)
compliant. These units are
not intended for use in po-
tentially hazardous atmos-
pheres in the EU. These
units may be CE marked
for other Directives of the
EU.
Example
Series
Construction
Upper
Body Material
Lower
Body Material
Circuit (Switch)
Type
Line Size
Tee and Float
Options
Switch Options
Options
L6
L6
EP
EP
B
B
S
B
B
S
S
S
D
3
3
4
5
6
B
0
A
B
C
H
L
S
MT
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
1-1/4˝ NPT (No tee models only)
1-1/2˝ NPT (No tee models only)
2˝ 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)*
* Options that do not have ATEX, IECEx or KC.