Lathem DDC2 manual Setting the Time, Time Formats

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Digital Display Wall Clock Guide

Page 20

 

 

Setting the Time

Time is set on the DDC Series Wall Clocks by depressing buttons located on the left side of the front panel. There are two setting buttons, "H" for hour and "M' for minute.

»To advance the hour or minute to the correct time one digit at a time press and release the proper button. Do this as many times as required until the correct time is displayed. When setting the hour, if the display is set to 12 Hour, a "dot" in the upper left corner of the display represents the PM hours.

»To rapidly advance the hour or minute press and hold the proper button. Release the button when the correct time is displayed. When setting the hour, if the display is set to 12 Hour, a "dot" in the upper left corner of the display represents the PM hours.

Note: Setting the minutes past 59 will not cause the hour to advance.

Note: Avoid using sharp or pointed objects to set the time as damage to the buttons may occur. A standard pencil eraser is suggested.

Time Formats

The DDC2 / DDC4 Series Wall Clocks can be set to display in 12 Hour or 24 Hour format. When in 12- Hour format, a round LED in the upper left corner of the display indicates PM hours. When in 24 Hour format, the hours are displays in Military style. To set the display format, use Table 3 on page 4 to set switch 8 of S1.

Note: When switches 1-5 are set for any secondary type other than Stand-Alone, the display is forced to 12 Hour and the PM indicator does not illuminate.

12 Hour Format

H

M

24 Hour Format

AM

H

M

PM

H

M

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Contents Installation & Users Guide Lathem Time Corporation Table of Contents Page Page Page Introduction Clock OperationAbout this Manual Optional Accessories DDC-TCPage Configuring the DDC Series Wall Clock Setting the DIP Switches DDC2 / DDC4 SeriesDIP Switch Settings DDC2/4-RS / DDC2/4-RS-24 Configuring RS485 Communications DDC2/4-RS SeriesBattery Usage DDC2 / DDC4 Series Battery Installation DDC2 / DDC4 Series Power Cord Installation DDC2/4-RSRS485 Wiring Wiring Installation DDC2/4-RS SeriesSecondary Wiring DDC-TC WiringBoard Layout Diagram Replacing an Existing DDC4 Wall ClockMounting DDC2 / DDC4 Series Mounting to a WallMounting to a Single Gang Box DDC2 Double Mount Wall DDC2 Double Mount Wall DDC4 Double Mount Wall Double Mount Ceiling DDC2 Double Mount Ceiling DDC4 Double Mount Ceiling Setting the Time Time FormatsStand-Alone 115VAC Appendix a DDC2-RS / 4-RS Secondary Clock Wiring DiagramsBLK Wire Synchronous 115VAC WHTAC RTN Wire Synchronous 24VAC CorrectionGrnd BLK BRN / WHT BLU / WHTYEL / WHT VIO / WHT BRN / WHT Wire minute Impulse 59th MinuteGrnd BLK Wire Minute Impulse 59th Minute With 12 Hour Correction BLK YEL / WHT VIO / WHT BRN / WHTStandard Electric Synchronous Standard Electric AR-2A 2-Wire Dual Voltage BLK YELStandard Electric AR-2 2-Wire Dual Voltage Synchronous Wired Simplex 59th Minute Dual Motor Simplex 45th Minute Dual Motor Edwards Dual Motor Standard Electric AR-3 3-Wire Minute Impulse BLK YEL / WHT VIO / WHT BRN/ WHTNational Synchronous Wired Stromberg Synchronous Wired 56th Minute Common Cincinnati D1VIO Cincinnati D6, EdwardsWire Pulse Alternating 24VDC Grnd AC RTN BLK VIO / WHT YEL / WHTGrnd AC in AC RTN BLK BLU Electronic CodedGrnd AC AC RTN BLK BLU Straight FrequencyWire Minute Impulse 58th Minute Wire Minute Impulse 44th Minute Wire Reverse Polarity Minute Impulse 59th Minute VIO / WHT YEL / WHTAppendix B DDC2-RS-24 / DDC4-RS-24 Wiring DDC2-RS-24 / DDC4-RS-24 Wiring Appendix C RS485 Wiring Diagrams RS485 Data FormatJP4 OMCGND Omcii to DDC2-RS / 4-RSBLK H LTR0 to DDC2-RS / 4-RS+ of JP4 LTR4 / 8-512 to DDC2-RS / 4-RSAppendix D DDC-TC Timer Control Panel WiringInstallation Timer ControlOperation As a Count Up Timer As a Count Down TimerAppendix E LTR-GPS Satellite Receiver / Clock Synchronizer LTR-0Page Connecting to a Lathem DDC2-RS or DDC4-RS Digital Clock Appendix F Specifications DDC2 / DDC4Appendix G Warranty Limited One-Year Limited Warranty
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