P.Cartmell T. McLeman
11 22-05-07 Option M3 Response Time Spec P.Cartmell T. McLeman
12 29-10-07 Repeat Relay Ratings clarified P.Cartmell T. McLeman
13 02-11-07
Signal Supply Monitoring & Terminals with
P.Cartmell T. McLeman
14 23-07-08 Sleep Mode Switch wiring clarified P.Cartmell D. Fishkin
15 31-07-08 Powered Inputs & Switch Settings Clarified P.Cartmell D. Fishkin
16 14-01-09 ASIC versions clarified P.Cartmell D. Fishkin
17 14-04-09 Wiring Drawings updated P.Cartmell D. Fishkin
18 06-06-11 Isolation Diode details added to sleep mode P.Cartmell D. Fishkin
© RTK Instruments LTD 2004
The copyright in this work is vested in RTK Instruments Ltd and this document is issued for the
purpose only for which it is supplied. No licence is implied for the use of any patented feature. It must
not be reproduced in whole or in part, or used for tendering or manufacturing purposes except under
an agreement or with the consent in writing of RTK Instruments Ltd and then only on the condition that
this notice is included in any such reproduction. Information furnished is believed to be accurate but no
liability in respect of any use of it is accepted by RTK Instruments Ltd.
Important Note
The UC625 system described herein operates on a logic voltage of 24VDC and as
standard 24VDC is used for the field contact supply voltage.
External power supplies using higher voltage AC/DC primary sources and optional high
voltage field contact voltages may be present if this is the case please ensure the
necessary precautions are taken