PHM-100STV-A SAFETY SHUT OFF TIMER
Contents
1. at the end of the Timing Interval Molex Pin Function Wire Color 1 28V Ground Black Numbered Molex 2 Operate Output White 2 Connector 3 28 Volts Red2. PHM 100STV A SAFETY SHUT OFF TIMER USER S MANUAL nu 1OSTV A PHM pa STOP DIGITAL TIMER OPERATE FAULT DOC 108 Rev 1 1 Copyright 2006 All Rights Reserved MED Associates Inc P O Box 319 St Albans Vermont 05478 www med associates com MED ASSOCIATES INC PHM 100STV A SAFETY TIMER MED ASSOCIATES INC PHM 100STV A SAFETY TIMER INTRODUCTION The PHM 100STV A is a microprocessor based digital timer that is capable of Timing Intervals between 1 and 99 seconds in 1 second increments Timing Interval is user selectable via the front panel two digit pushbutton switch The Timing Interval is initiated by sending the PHM 100STV A a MED output control signal The output of the Safety Shut Off Timer is a standard 28V output At the end of the Timing Interval the voltage output will deactivate and stay off until the Timer is reset Figure 1 PHM 100STV A Front Panel PHM 100STV A SAFETY SHUT OFF DIGITAL TIMER FAULT OPERATE Figure 2 PHM 100STV A Back Panel INPUT OUTPUT MED ASSOCIATES INC PHM 100STV A SAFETY TIMER OPERATING INSTRUCTIONS The Timing Interval is set using the front panel pushbutton switches The left most digit on the pushbutton switches represents time in tens of seconds and the right most digit represents seconds For example for the minimum Timing Interval of 1 second the pushbutton switches should be set to 0 1 Figure 3 and for the maximum Timing Interval of 99 seconds the
3. y should be set to 9 9 Figure 4 Figure 3 Timing Interval Set to 1 Second The green OPERATE LED Figure 1 indicates that the output is active If the MED output is still on at the end of the Timing Interval the PHM 100STV A Safety Shut Off Timer will turn it off The FAULT LED Figure 1 will light up indicating that there has been a timeout and the Timer is now deactivated until it is reset see DEVICE RESET Timer Disable To disable the PHM 100STV A set the Timing Interval to 0 0 With the timer disabled the output will follow the input from the MED output control signal When disabled the FAULT LED will blink indicating that the safety circuit is inactive Device Reset To reset the timer the 28V power supplied to the PHM 100STV A Input connector must be shut off or disconnected then turned back on or reconnected CONNECTORS INPUT Connector This 3 pin Molex connector should be connected to any available Output on a standard MED Connection Panel By turning the corresponding output bit ON the timer will start and timer output will activate Molex Pin Function Wire Color 1 28V Ground Black S Numbered Molex 2 Start Timer White Connector 3 28 Volts Red OUTPUT Connector The PHM 100STV A Output is designed to be connected to MED syringe pumps but any 28 Volt MED device such as a house light or sonalert can be connected to the 3 pin Molex connector The output will be turned off
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