Description Specifications Description The ATC 653 is a micro-processor-based control that can function as either a timer or a counter. It has a 4-1/2 digit LCD that can provide an indication of either the time or count value remaining or elapsed. There are five timing ranges covering time values from one millisecond to 199 hours 59 minutes. There are also three count speeds to a maximum of 7500 counts per second. The unit has an instantaneous relay output and a programmable relay output which can be programmed for any one of 14 different timing modes.The timing range, count speed and timing mode are programmed with an internal DIP switch assembly. An external switch determines whether the time inhibit or count input takes place with application or removal of voltage. The time or count value is preset by the operator using the keypad on the front face.These programmed values are retained in memory and are secured in memory by a keypad lockout command. The keypad can also be used to perform secondary functions such as reset, immediate time/count out, time/count inhibit, changing the direction of the display, displaying the number of cycles run, and clearing the cycle counter.The Model 653 is housed in a standard 15-terminal plug-in round case. Models are available for operation on either 120 VAC or 240 VAC. Counting can be done at either line voltage or at 12-48 VDC/24 VAC.Features:Functions As Timer or CounterFive Time RangesSix Single-Cycle and Eight Repeat-Cycle Timing ModesSealed FaceplateCycle CounterCount Input Scaling State of California Proposition 65 WARNINGCancer and Reproductive Harm - www.P65Warnings.ca.gov. Product Specifications General SpecificationsDescription:Plug-in, Round Case Timer - 120 VAC W/Battery MemoryTiming Ranges:0.001 SEC to 19.999 SEC0.01 SEC to 199.99 SEC0.1 SEC to 1999.9 SEC1 SEC to 199 MIN 59 SEC1 MIN to 199 Hr. 59 MINReset Time:25 mSECControl Voltage Initiate Time:25 mSECMemory:EEPROM CircuitryPower Consumption:5.2 VATime Setting:Front Panel KeypadTime Repeat Accuracy:±0.005 SECDisplay:LCD - 4 1/2 Digit, 7/16" HighOperating Power:120 VACTerminals:Screw TerminalsMounting:Plug In CaseRelay Mechanical Life:50,000,000 OperationsTemperature Rating:32° - 140° F (0° - 60° C) Literature & Docs Accessories