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Warrick Conductivity Controls

Series 27 Conductivity Based Liquid Level Control

Part Number: 27A2E4
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WarrickControl_27A1D0
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PRODUCT DESCRIPTION:

Series 27 Conductivity Based Liquid Level Controls are intrinsically safe controls with SPDT output contacts and are UL approved for use in Class I, Groups A, B, C & D; Class II, Groups E, F & G; and Class III hazardous locations. Control sensitivity is factory-set. Series 27 is UL Pilot Duty rated. CSA certified for Class 1, Groups A, B, C and D; Class II, Groups E, F and G; Class III.

  • Solid State Reliability
  • Up to 100K Ohm/cm Sensitivity
  • Internal Surge Suppression
  • Single Level or Differential Service

FEATURED DOWNLOADS:

Catalog Page
CE ROHS Gems Compliant CSA

Features

  • Solid State Reliability
  • Up to 100K Ohm/cm Sensitivity
  • Internal Surge Suppression
  • Single Level or Differential Service
SKU
27A2E4
Model
27
Sensor Type
Intrinsically Safe Controls
Mode Of Operation
Direct
Sensitivity
10 K ohms
Control Style
Solid State
Socket Style
N/A
Standoff Style
N/A
Enclosure
NEMA 4
Contact Design
1 Normally Open & 1 Normally Closed (form C)
Contact Rating
8 Amp Resistive
Supply Voltage
240 VAC
Secondary Voltage
11 VAC
Terminal Style
Screw Type
Minimum Temperature
-40°F
Maximum Temperature
150°F
Protection
Intrinsically Safe
Approvals
UL 913
Weight
4.6

Gems Sensors Product Resource, Warrick Series Troubleshooting

Format .pdf
Size 75 KB
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Instructions_100274-1

Gems Sensors Instructions, Warrick 27 Controls

Format .pdf
Size 622 KB
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Catalog-E_Series17-27_thumb

Gems Sensors Catalog, 17/27 Controls

Format .pdf
Size 198 KB
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Should the sensitivity of my control be higher or lower in resistance than my liquid?

The sensitivity of the control should be greater than the resistance of the liquid.