A-30 Visit www.GemsSensors.com for most current information.
LEVEL SWITCHES – SINGLE POINT
Extended Power and Switching Capabilities
of 12 VDC Models with Gems.
Converts TTL output signal to 5 Amp
relay output. Available as open circuit
board or mounted in a NEMA 4X
enclosure (pictured). See Page A-31.
Input
Power
Probe Condition
at Current Sink
Nickel-Plated Steel Housing Stainless Steel Housing
1/2˝ NPT
Mounting
3/4˝ – 16
Straight Thread
1/2˝ NPT
Mounting
5 VDC Wet 194469 195201 205486
Dry 194470 195202 205487
12 VDC Wet 194471 195203 205490
Dry 194472 195204 205495
+12 VDC or +5 VDC
R
LED
OUTPUT
18 mA
MAX.
RED
WHITE
BLACK
RED
BLACK
WHITE
+12 VDC or +5 VDC
LOAD
18 mA
MAX.
1/2˝ NPT
1.38˝
(35 mm)
Epoxy
Encapsulated
Lead Wires
3/4˝-16UNJF 3A
O-RING
7/8˝ HEX
(22 mm)
7/8˝ HEX
(22 mm)
UP TO
45˚
ELS-1150SS
ELS-1150
ELS-1150 Series Features Best
Performance-to-Size Ratio
The ELS-1150 electro-optic level switches maintain the top-performing environmental
capabilities of their larger family members while featuring an overall size that is 50%
smaller. At just 1.38˝ long, ELS-1150 represents the smallest electro-optic level
sensor in its performance class, and by far the most economical. ELS-1150 switches
utilize a strong, glass prism fused to a carbon steel or stainless steal housing to easily
monitor vessels pressurized up to 2500 PSI. Their compact package size makes them
the ideal candidate for monitoring the small, pressurized vessels found in HVAC,
refrigeration and hydraulic applications. They are most commonly used for low, high
and intermediate level detection.
A stainless steel version, the ELS-1150SS, is excellent for applications requiring
corrosion resistance. Industry's only stainless steel electro-optic sensor offers greater
compatability and is ideal for acids, solvents, and dielectric water applications.
Specifications
Mounting 1/2˝ NPT, 3/4˝-16 Straight Thread
Materials
Housing Nickel-Plated Carbon Steel or Stainless Steel
Prism Fused Glass
Operating Pressure 0 to 2500 PSI, Maximum
Operating Temperature* -40°F to +212°F (-40°C to +100°C)
Current Consumption ~45 mA
Output Open Collector Output, 18 mA Sink, Max.
Electrical Termination 22 AWG, Polymeric, 12˝ to 14˝ Extended Lead Wires
Repeatability ±1 mm
Approvals** CE, UL File No. E108913, CUL
* These switches are not for use in freezing liquid or steam/high condensation environments.
For higher temperature versions up to 257°F (125°C), and for other alternate requirements,
contact Gems factory.
** Carbon Steel model only.
Wiring Diagrams - Typical
Note: Inductive loads must be diode suppressed.
How To Order
Specify Part Number based on Input Power/ Output Condition and material required.
File No. E108913
Dimensions
1/2˝ NPT Mounting 3/4˝ - 16 Straight
Thread Mounting
Mounting Attitude
These units must be mounted horizontally or up to 45°
from horizontal only.
