Barksdale

UNS-1000 Series (Formerly Series BLS 700)

  • Fully customizable
  • Up to 5 independent switch points
  • Reversible switch logic
  • Suitable for high viscosity liquids
  • Optional integral temperature switch
  • Hermetically sealed reed switches
  • Available in Brass or Stainless Steel
  • Multiple Mounting and Electrical Connection Options
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Barksdale's Series UNS-1000 Level Switches offers a level control solution that is fully customizable to the exact needs of your application. Available in lengths up to 40", the UNS-1000 Level Switches can be configured with up to five floats, each with its own individual switch point. A variety of mounting options and materials are available, ensuring compatibility with your vessel. Standard construction materials include stainless steel and brass. Floats are available in stainless steel and Buna-N. Alternative materials may be available upon request. Switches may be configured either as one common circuit (Group 1 or 2) or as independent circuits (Group 3 or 4), with SPST or SPDT reed switches. For applications requiring multiple setpoints with pressures below 220 psi, the Series UNS-1000 is the level switch to choose.

Specifications

General Specifications*

Max. Operating Pressure: 220 psig (15 bar), NBR (BUNA), and SS float
Minimum Specific Gravity: NBR (BUNA) – .57 g/cm3 SS – .71 g/cm3
Mounting Position: Vertical, ±30°, through top or bottom
Protection Class: IP65 for ST-, KL- and PG-design
IP67, IP68 on request
IP54 for K-design
Operating Temperature: +14 °F to +221 °F (-10 °C to +105 °C), PVC-cable
Special Design Options:
(On Request)
DR – Damping tube
HT – High temperature silicone-cable
-40 °F to +302 °F (-40 °C to +150 °C)
U – Mounting location through bottom
PT100 – PT100-element
V V – Vertical adjustment
Exi – ATEX approval EEx ia
Contact Mode: NO or NC are defi ned on the basis of an empty tank and for installation through the top.
Weight: Dependent on length and design

Max. Switchpoints

KL6C AL Terminal Box KL12C AL Terminal Box ST1 DIN Connector ST2 DIN Connector PG Cable gland
Connect Group 1 5 5 2 5 3
Connect Group 2 2 4 1 2 1
Connect Group 3 3 4 1 3 2
Connect Group 4 2 3 1 2 1

Combinations

Material Mounting Electrical Connection Float
Stainless Steel (VA) T1 NPT FLA3 DIN Connector (ST1 & ST2)
Terminal box (KL6C
or KL12C)
Cable gland (PG)
PVC Cable (K)
316 Stainless Steel (VA27)
1/8 NPT
1/2 NPT
Cable gland (PG)
PVC Cable (K)
Brass (MS) T1 NPT DIN Connector (ST1 & ST2)
Terminal box (KL6C
or KL12C)
Cable gland (PG)
PVC Cable (K)
NBR BUNA-N (BN25)
1/8 NPT
1/2 NPT
Cable gland (PG) PVC Cable (K)
PVC Cable (K)

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