Single level switches LS-77700, LS-1700, LS-1750E, LS-1800
LEVEL
SWITCHES
LS-77700 - Bent Stem
These units perform in liquids
with specific gravities as low as
.45; switches protrude into tank
less than 75mm.
LS-1700
Offer broad chemical
compatibility for general
purpose use. Also ideal for oils
and water.
LS-1750E
Rugged construction suitable for
most corrosive liquids, and for
high temperatures and pressures.
LS-1800
Intermediate in size, LS-1800
switches provide long life and
dependability to meet a broad
range of requirements.
12.7
1/8" NPT
or 3/8"
UNF with
nut
45
G 1/8"
10
1/8" NPT
(G1/8")
HEX 13
Buna N
Float
ø8
Ø8
G1/8"
HEX 14
Ø8
53
ø8
HEX13
(HEX14)
32
45
45
53
53
83
24
38
24
Buna 25
S Steel 38
Ø27
Ø25
Ø11
30mm
Specifications
LS-77700
Materials
Stem and mounting
Float
Operating pressure
Temperature
-40°C to
(Note: PVC Cable
Limited to +80°C Ambient)
Depth of immersion at a
density of 1
Minimum specific gravity
of the liquid
Type of reed switch
Electrical connection
(Length approx. 1m)
Mounting thread
Protection rating
Weight approx
Brass or S Steel
S Steel or Buna N
10bar
7 bar S Steel Float
+80°C Water
+110°C Oil
+150°C S Steel Float
Buna N:
9mm
S Steel:
15mm
Buna N: 0.45
S Steel: 0.7
SPST 20 VA
22 AWG 0.6m L., Teflon® Lead wires
1/8" NPT
3/8" UNF with nut
IP64
150g
LS-1700
Brass or S Steel
Buna N or PTFE
10 Bar
70 bar PTFE Float
+80°C Water
+110°C Oil
+100°C PTFE
Buna N:
9mm
PTFE:
13mm
Buna N: 0.45
PTFE: 0.85
SPST 50 VA
Fly lead: AWG 20 FEP
Cable: 0.34 mm2 PVC
1/8" NPT
G 1/8
IP64
30g
LS-1750E
S Steel
S Steel
20 bar
LS-1800
Brass or S Steel
Buna N
10 bar
+150°C
+80°C Water
+110°C Oil
24mm
0.7
SPST 100 VA
SPDT 20 VA
Fly Lead: AWG 20 FEP
Cable: 0.34 mm2 PVC
1/8" NPT
G 1/8
IP64
80g
21mm
0.85
SPST 50 VA
Fly lead: AWG 20 FEP
Cable: 0.34 mm2 PVC
G 1/8
IP64
50g
●
Consult factory for De-min water applications
How to Order
Stem, Float, Mounting Electrical Connection
Brass/Buna, NPT, cable
Brass/Buna, NPT, leads
Brass/Buna, G, cable
SSteel/Buna, NPT, cable
SSteel/Buna, NPT, leads
SSteel/PTFE, NPT, leads
SSteel/PTFE, NPT, cable
Brass/Buna, 3/8" UNF, leads
SSteel/SSteel, 3/8" UNF, leads
SSteel/SSteel, G, cable PVC
SSteel/SSteel, G, leads
SSteel/SSteel, G, cable Silicon
118127
117716
011-1750
NO/NC
010-0340 NO/NC
010-0554 NO/NC
118125
LS-77700
LS-1700
010-2921 NO/NC
010-1701 NO/NC
011-1700
NO/NC
010-2922 NO/NC
010-1702 NO/NC
012-6791 NO
010-2924 NO
012-7980 NC
010-2923 NC
LS1750E
LS-1800
010-2930 NO/NC 010-3011 SPDT
013-5651 NO/NC 013-0272 SPDT
011-1800
NO/NC
010-2931 NO/NC
010-3013
013-5657 NO/NC 012-4367 SPDT
Standard Products in
bold
27
www.gems-sensors.co.uk
LEVEL SWITCHES
1/8" NPT
(G1/8")
32
45
72
80
SINGLE POINT