INTRINSICALLY SAFE CONTROLS Series 17 and 27 Intrinsically Safe Controls Series 17 Cannot Ignite Flammable Materials Solid State Reliability Up to 470K Ohm/cm Sensitivity (Series 17) Internal Surge Suppression SPST Contacts (Series 17) SPDT Contacts (Series 27) Can Be Used for Single Level or Differential Service Series 17 - FM Approved Series 17 is FM Approved for use in Class I or II, Division 1, Groups A-G hazardous atmospheres. SPST isolated contacts. Field adjustable sensitivity by use of external resistors. Series 27 Series 27 - UL-CSA Approved Series 27 is UL approved for use in Class I, Groups A, B, C, D; Class II, Groups E, F, G; and Class III hazardous locations. SPDT output contacts. UL Pilot Duty rated. Specifications Contact Design Series 17 Series 27 Contact Rating (24/120/240VAC) Mode of Operation Sensitivity Series 17 Series 27 Primary Voltage Series 17 Series 27 Secondary Voltage Series 17 Series 27 Temperature Approvals Series 17 Series 27 Connections 1 N.O. & 1 N.C. Isolated Contacts 1 N.O. & 1 N.C. (1 form C) 8 amp Resistive Direct/Inverse, factory set Applications * Hazardous Atmospheres * Pumps * Waste Treatment 0-470K ohm, field adjustable 0-100K ohm, factory set 24 VAC, 120 VAC, 240 VAC (+10%/-15%) 50/60 Hz 120 VAC, 240 VAC (+10%/-15%) 50/60Hz Dimensions 13 VAC, 4 mA 11 VAC, 2.3 mA -40F to +150F (-40C to +65C) FM File # 1G9A1.AX U.L. 913 File # E44570; CSA #2174246 All screw type connections * Alarms * Sewage * CP Industry WARRICK CONDUCTIVITY SENSORS CSA Certified for Class 1, Groups A, B, C and D; Class II, Groups E, F and G; Class III How to Order Use the Bold characters from the chart below to construct a product code. 17 X X Series 17- FM Approved 27- UL/CSA Approved Mode of Operation A - Direct B - Inverse Supply Voltage 1 - 120 VAC 2 - 240 VAC1 3 - 24 VAC2 Sensitivity (ohms)3 D - 3K E - 10K G - 100K X - (17 only)3 Enclosure 0 - None 1 - NEMA 1 4 - NEMA 4 X X Notes: 1. 240V standard in Series 17. Nonstandard, but available in Series 27. 2. 24V available only in Series 17. 3. Series 27 only. Series 17 includes a full set of resistors (3.3K, 4.7K, 10K, 47K, 100K, 220K, 470K ohms) to allow modification of sensitivity in the field. Product code symbol in this position for Series 17 is "X." Visit www.GemsSensors.com for most current information. E-15