DATREND Systems vPad-XSC User Manual

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DATREND Systems vPad-XSC User Manual Manual pdf 28 page image

vPad-XSC for Impulse 4000 USER MANUAL3.4 Pacemaker TestsOnce a Checklist has initialized communication with the Interface, configured test settings and, optionally,prepared limits for automatic pass/fail assessment, vPad is ready to execute a range of pacemaker tests. Atypical Checklist will include prompts instructing the operator how to set up the pacer and Impulse 4000,followed by remote test statements.3.4.1 Pacemaker Pulse TestTo perform a pacer pulse test, use a vPL statement of the formxtest "< instr >" | PPPN,< targ1 >,where:< instr > is an instruction to be displayed to the user while the pacer pulse test is in progress,PPPN is the command for measuring pacer pulses,< targ1 > is the optional target for automatic pass/fail assessment, for pulse current (in ma)< targ2 > is the optional target for automatic pass/fail assessment, for pulse rate (in PPM[pulse per minute])Note the comma (“,”) separating the required parameters from the optional target values. In order toenable automatic assessment, the statement must specify both the pulse current and the pulse rate target.Pulse width and pulse energy measurements are assessed if targets are included, and ignored if they are not.3.4.1.1 Example 11: Measuring Pacemaker PulseA Checklist may start a pacemaker pulse test through a vPL statement similar to the following:xtest"Wait! Then verify pacer pulse test result" | PPPN,30,70For this statement,PPPN commands Phase 3 to begin analyzing pacer pulses,30 is the optional target pulse current (mA), and70 is the optional target pulse rate (PPM).Assuming that pacer pulse current and rate limits are set to defaults, the Interface automaticallyassigns a "PASS" result if the measured current is 30 mA ±10 % and pulse rate is 70 PPM ±2PPM. For the case of a "PASS", the Test Report will contain an entry similar to the following:___________________________________________________________Operation/Chapter 3 # Page 19