DATREND Systems medTester 5000B Application Note
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APPLICATION NOTEINFUTESTSeries C & Series DAN-17.2004: Page 1 of 4 1-800-667-6557 www.datrend.com© Datrend Systems Inc.Interface With medTester1. INTRODUCTIONThe medTester 5000B is part of an equipmentmanagement data base and testing system availablefrom DNI Nevada Inc.(now Fluke Biomedical Corp.). Touse Infutest with medTester, your medTester musthave the medCheck firmware option installed, plus youmust be able to use the equipment data base programSentinel, also by DNI Nevada.2. SETTING UPUse a Datrend Systems SSC-1 cable to connectInfutest to COM2 of the medTester. Do not use anull modem cable or adaptor.Do not connect medTester to Infutest using themedTester serial cable supplied by DNI Nevada.This is a null modem cable for connecting COM1 of themedTester to a PC.Power up medTester and select UTIL from the mainmenu level, followed by PORTS. Set COM1 to OFFand COM2 to ON. Return to the UTIL menu.Select RS232 and then COM2. Program COM2 asfollows:Set Baud Rate to 9600Set Stop Bits to 1Set Length to 8Set Parity and CTS to OFF3. DESIGNING CHECKLISTSA Checklist is a list of instructions or "check items"which medTester performs sequentially andautomatically, pausing occasionally for data input fromthe user via the medTester keyboard, or from anexternal device connected to medTester's COM2 port.Checklists are created on a PC using the Sentinelprogram, and then are downloaded from your PC intomedTester's memory.To control Infutest with medTester, your Checklistmust included check items which begin with \Mfollowed by an Infutest remote control command. Acheck item beginning with \M tells medTester to getdata from COM2, instead of from the medTesterkeyboard. In executing a Checklist with \M items, themedTester will transmit whatever characters follow \Mto the Infutest via COM2, and then will wait for data tobe returned via COM2. Depending on the commandwhich follows the \M, Infutest may return up to 40characters of data to the medTester.\M is also necessary to introduce delays into theChecklist so the Infutest has time to start the test andcollect some measurement data. The syntax for thisis:\M pausewhere pause is the number of seconds (1 to 32000)you want medTester to wait until it continues with thenext check item.For example, your Checklist might begin with somePASS/FAIL items (\P items) for inputting informationabout the condition of the pump under test, such as theline cord and front panel keys and displays, and it mightend with AutoSequence 10 to test electrical safety ofthe pump. In between, you want to conduct a test onChannel A to check the flow at 100 ml/hr, and thenmeasure the occlusion pressure. To do the flow test,your Checklist could include the following items:\M RTA1\M 180\M STA\M GSA1This portion of a Checklist starts a Single Rate Test onChannel A and runs the test for three minutes. Theflow test is stopped and medTester requests Infutest toreturn the summary of the measurements made duringthe test via the GSA1 command.Now you want the medTester to tell Infutest to run theOcclusion Pressure Test. To do that, the previouscheck items would be succeeded by:\M RTA4\M 60\M STA\M GSA4These check items start an Occlusion Pressure Test |
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