Summary of Contents for King-Gage Multi-Point
- Page 1 Multi-Point Process Switch Effective: September 2006 (Replaces October 2002) EX-1711 EX-1711 KING-GAGE ® 4-20 mA Process Control Multi-Point Process Switch ™ Single-Channel Analog Start-Up/Operation Instructions Page 1...
- Page 2 Multi-Point Process Switch EX-1711 © 1989/1995 King Engineering Corporation. All rights reserved. The information contained in this manual was accurate at the time of release. Specifications are subject to change without notice. Warranty—All King Engineering products are guaranteed The exclusive remedy for nonconformity of these goods...
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Page 3: Table Of Contents
Multi-Point Process Switch EX-1711 Contents Specifications Specification Data, Dimensions ................4 AC Power Requirements Power Terminal Connections ................. 5 Internal Fuse Replacement ..................6 4-20 mA Process Loop Typical Process Loop Diagram................7 Input Current Limiting (PTC Resistor)..............7 Set-Points/Output Relays Front Panel—LED Status Indicators................ -
Page 4: Specifications
Multi-Point Process Switch EX-1711 Specifications 1-1/16 in. 27 mm Power Requirements nominal 115 Vac/60 Hz (unregulated) 3.45 W/ 0.03 A - fused @ 1/2 A KING-GAGE Temperature Range (Environmental) ® POWER 32° F to 158° F / 0° C to 70° C operating 115 V (-40°... -
Page 5: Power Terminal Connections
Multi-Point Process Switch EX-1711 Terminal Connections Electrical Power The Process Switch requires nominal 115 Vac/60 Hz. (single- 115 V Power phase) power for operation. Connections should be made using approved 3-conductor, source grounded cabling. N.O. Proper polarity must be maintained for optimum performance of the unit. -
Page 6: Internal Fuse Replacement
Multi-Point Process Switch EX-1711 Internal Fuse The AC Power input of the Process Switch is internally fused using a 0.5 Amp/250 Volt non-time delay fuse. To replace this fuse, remove the side panel from the housing. This is held in place by four (4) phillips-head screws. -
Page 7: Typical Process Loop Diagram
EX-1711 4-20 mA Input Signal Input Current Limiting The Multi-Point Process Switch is a single channel analog A positive temperature coefficient (PTC) resistor circuit is set-point control. It provides continuous monitoring of a incorporated into the Process Switch for protection against typical process loop with four (4) independent set-points overcurrent situations. -
Page 8: Front Panel-Led Status Indicators
Multi-Point Process Switch EX-1711 Adjustable Set-Points The Process Switch has four (4) user set-points that can be adjusted to control continuous process operations, provide fail-safe limiting or alarm functions. Front Panel - LED Status Indicators are located on the front panel of the Process Switch. Each of the four (4) LEDs correspond to “SET1, SET2, SET3, SET4"... -
Page 9: Set-Point Adjustments
Multi-Point Process Switch EX-1711 Set-Points/Deadband Adjustments Deadband Set-Points The Process Switch has four (4) user set-points which are continuously adjustable over the full 4-20 mAdc input A master deadband adjustment controls all four set-points. range. Each set-point can be adjusted to within 0.008 The deadband adjustment range is 1.0% -12.5% FS. -
Page 10: Deadband Adjustment
Adjustment Procedure Deadband Adjustment The LED status indicators are used when adjusting the The MULTI-POINT Process Switch has been factory-adjusted individual set-points. When illuminated, they indicate with a 1% FS deadband (0.16 mA). This represents the the set-point has been reached and corresponding relay range through which the input signal can be varied without energized. -
Page 11: Troubleshooting
Possible short-circuit in signal loop. If signal current exceeds 70 mAdc, an overcurrent-limiting PTC (PTC— Disconnect 115 Vac power from MULTI-POINT Process positive temperature coefficient) resistor restricts current Switch and check internal fuse. If fuse is blown, replace levels through the entire loop to only a few milliamps. - Page 12 E N G I N E E R I N G Since 1937 C O R P O R A T I O N 3201 South State St, Ann Arbor, Michigan 48108-1625 U.S.A. PO Box 1228, Ann Arbor, Michigan 48106-1228 U.S.A. Phone: (734) 662-5691 • FAX: (734) 662-6652 www.king-gage.com...
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