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Table of Contents
Summary of Contents for SIL 112-2A-2
- Page 1 DUAL TRIP AMPLIFIER Type 112-2A-2 User Guide Document Ref: UD112-2A-2.vp Rev 1...
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Page 2: Installation
Installation WARNING! This unit can be mains powered. All inputs must be 112 Series Modules are designed to be isolated from dangerous voltages fitted to any flat dry surface using two before the plug in module is 4mm screws. Alternatively, by fitting an removed from the base section for optional DIN clip, they may be clipped to maintenance or adjustment. -
Page 3: Terminal Connections
Terminal Connections Please note On early releases of this unit, the transducer Input supply is not available. These units are 1 Transducer supply (+) identified by “112-2A-080” on the PCB or optional Second Input (+) adjacent to hysteresis pots. 2 Input Signal (+) Two Input Option 3 Input Signal Common (–) Where two separate inputs are specified,... - Page 4 Access to settings Internal Controls and Links Facilities for all configuration settings are Interlocked Output to be found on the printed ciruit board. This mode is enabled by LK5 (see Fig 1). Change in AC mains supply, hysteresis Two modes of interlock operation are settings, high or low operation and possible which are selected by the Switch interlock mode may be set using links and...
- Page 5 Fig 1 Location of adjustments High - Low Selection Switches High Interlock Link Channel ‘A’ (SW.A) Channel ‘B’ (SW.B) Interlock Enabled Interlock Disabled Transformer or DC Power Unit Mains Set Channel ‘B’ Set Channel ‘A’ Fuse Supply Hysteresis Hysteresis AC Supply 240v 100mA quick blow link 2-3 &...
- Page 6 Interlocked Operation Interlocked Output Setting up Triggered by a Low Level This mode of operation will enable one To set up the unit to operate with an relay to energise and not switch off until interlock triggered by a Low Level: the input signal reaches the high trip 1.
- Page 7 Interlocked Output Triggered by a High Level Setting up This mode of operation is the inverse of the previous one. In this mode the input To set up the unit to operate with an signal reaching the high trip point interlock triggered by a High Level: energises Relay ‘B’...
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Page 8: Specification Summary
Specification Summary Inputs Series Mode AC Rejection others available to order A hysteresis setting of ± 1% will reject 50/60Hz series mode signals with peak to 0 - 10 mA into 100W 50 W peak amplitude equal to 5 x full scale. 0 - 20 mA into 4 - 20 mA...
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