Digital Clock / Elapsed Timer - Bender

ZT1490Digital Clock / Elapsed Timerwith dual row display and 3/4“ LED charactersMedical Products Groupno battery so there is no need for battery monitoring andreplacement. In the event of power outage, both clock and timerfunctions will continue to work for at least 24 hours. However, thedisplays are not visible during this time interval.The Timer may be activated from the Clock/Elapsed Timer itself,from the remote control accessory or an external contact (codeblue or other monitoring output). A count may be interrupted,resumed and reset at the Clock/Elapsed Timer itself or externallywith the remote MK1450. The remote MK1450 is optional andhas the same button functions as the ZT1490.• UL recognizedClock / Elapsed Timer ZT1490• Overload protection with automatic reset• Microprocessor design with special quartz timingcircuitry for ultimate stability and repeatability• No harness between PC boards, potential formaintenance at board level• Power outage backup for at least 24 hours, nobatteries• Protected against HF interference and transientvoltages• Code blue output• Serial bus RS485, with a twisted pair shieldedcable• Up to 32 Clock/Elapsed Timer (ZT1490/1491)and/ or Surgical Chronometer (ZT1494) can beconnected in a Master/Slave arrangement, viaapproximately 3200 feet of cableOperational Information ClockThe ZT1490 has a dual row digital 7 segment LED display. Thedisplays indicate the time of day and elapsed time. Use areference clock to set the time of day in hours and minutes.Similiar buttons on the ZT1490 and on the Remote ControlMK1450 and MK1450C are used to set the time.In the Master/Slave configuration, the time setting can only bedone at the master clock.Operational Information TimerThe timer display on the ZT1490 is off when no timing procedurehas been initiated.Similiar buttons on the ZT1490 and on the Remote ControlMK1450 are used to set the timer.Design DescriptionThe Clock / Elapsed Timer is enclosed in a durable phenolichousing 7“ x 4-7/16“ x 2-1/2“ (W x H x D). There are no protrudingswitches on the front foil.The connector plate model #927776 is required for installation.The 12/24 hour display mode is easily changed by means of aDIP switch located on the PC board inside the unit. Please referto catalog data sheet “Setting the Operation Mode for BENDERClocks“ for information on this procedure.Product DescriptionThe Clock/Elapsed Timers are complete microprocessor basedunits that displays both time of day and elapsed time information.The ZT1490 has a dual row 4 digit 7 segment display with largebright red LED characters that are easily read in high ambientlight. A Master/Slave Clock configuration is possible. With thisarrangement, the time of day is set at the Master Clock. Only oneClock can serve as a Master.The BENDER ZT1490 operates independent of line frequency.These units have unique power backup systems that requiresClock/Elapsed Timer & AccessoriesTypeModel No.Clock/Elapsed TimerZT1490Remote ControlMK1450-G1Remote ControlMK1450-G2Connector Plate927776Specifications and other data subject to change without notice.Page 1 of 22009 LST

Technical Data for ZT1490Supply voltage V N100V to 277VFrequency range of F N48Hz to 62HzMaximum power consumption 12VA @ 120V ACAmbient temperaturewhen operating +32 ºF to +122ºF0ºC to +50ºCwhen stored +14 ºF to +158ºF+10ºC to +70ºCTiming accuracymax. deviation 50ppmData management afterpower outage >24hCharacter height >3/4“Character colorredConnectionvia 20 pin Molex Connectorand cable to 16 poleterminal strip(Molex P/N 6471)Serial busEIA RS485Height 4-7/16“Width 7“Depth 2-1/2“Weightapprox. 1.3 lbDimension Diagram(inch)View fromthe back6.1250“7“6.50“2“ 2.50“.8“.25“4“.1250“4.4375“Wiring DiagramMOLEXConnectorZT1490Clock /ElapsedTimer1234567891011121314151617181920Connector PlateterminalsWiringHarness12345678910111213141516N.O.•MK1450RemoteControlTerminal FunctionsConnector Plate Molex Connector FunctionTerminalZT14901 3 Hold LED2 6 Set Minutes3 12 GND (Common)4 8 Hold / Resume5 9 Count / Reset6 7 Set Hours8 4 Code Blue9 13 Shield Ground10 1 T x D11 2 R x D13, 14 16 L1(Power supply)15, 16 20 L2 (Power supply)*123456HOLD LEDSET MINUTESGND (COMMON)HOLD / RESUMECOUNT / RESETSET HOURSTotal max.32 slavesPower Supply* Shielded cableOur AddressBENDER MEDICAL PRODUCTS700 Fox ChaseCoatesville, PA 19320Phone: 800-356-4266610-383-9200Fax: 610-383-7100E-mail: medical@bender.orgSafety InstructionsWARNING WarningElectrical equipment shall only be installed by qualifiedpersonnel in consideration of the applicable safetyregulations.Specifications and other data subject to change without notice.Page 2 of 22009 LST