IMPORTANT - Installation, wiring, commissioning or re-ranging of this instrument should be restricted to authorised skilled personnel. SWITCH OFF ALL POWER SUPPLIES AND ISOLATE SIGNAL WIRING FROM DANGEROUS VOLTAGES BEFORE COMMENCING WORK ON THE INSTRUMENT Installation 112 Series Modules are designed to be Plug in Module Screw Retaining Washers fitted to any flat dry surface using two...
Wiring Power supply considerations Grommets are provided on three sides of This instrument operates from an AC the base section and there are two rear supply in the range 85-260VAC 3VA - see entry knock outs in the bottom. Good Appendix 1 for earlier versions with linear instrumentation practice should be power supply.
Fig 1. The switches may be accessed as follows: Introduction Opening the module The 112-61s provides an analogue output (i) Isolate all supplies to the unit. proportional to the number of active (ii) Unscrew two module retaining screws inputs.
Fig 1 Location of switches ‘Tens’ ‘Units’ Re-assembly (i) Slide the printed circuit board into the correct slot in the cover (i.e. ensuring the LED indicator aligns with its window in the front panel). (ii) Replace the plastic plate by first engaging the side with the two tongues into their slots in the case then press the plate home to engage...
Appendix 1 - Earlier versions with linear power supply Supply voltage adjustment SWITCH OFF ALL POWER SUPPLIES AND ISOLATE Mains powered units can be adapted for SIGNAL WIRING FROM operation on 110V, 220V or 240V DANGEROUS VOLTAGES supplies. The diagram below provides BEFORE PROCEEDING.
Appendix 2 - Specification INPUT SIGNAL OPTIONS TEMPERATURE RANGE a) Contact closure Operating: -10°C to +60°C; (must sink 10mA approx.) b) Open collector transistor (npn - Storage: -20°C to +70°C must sink 10mA approx. POWER SUPPLY c) Voltages in the range >5V <50V Universal ac supply accepts 85 Vac to (external circuit must source 10mA approx.) 265 VAC, 50/60Hz...
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