24 -006.4 m V35 01.17 n F66 032.8 C72 -001.3 u A157 120.9 V AC211 40.84 Hz364 354.6 k Ohms366 1.460 M Ohms
The sketch TP4000ZC.ino is a data logger for TekPower TP4000ZC andDigitek DT4000ZC multimeters.This sketch requires the SdFat library located here:http://code.google.com/p/sdfatlib/downloads/listAn Arduino interface for the meter is described in interface.txt.logger.jpg shows my debug setup.The meter protocol is defined in TP4000ZC_serial_protocol.pdf.Links to other meter info are in meter_info_url.txt.The sketch was debugged with an Adafruit Data Logging Shield butany SD module/shield should work.Data is logged to a file named DMMLOGnn.CSV where nn is a number 00-99.The csv log file has three or four columns depending on the value ofMULTIPLIER_FORMAT.For MULTIPLIER_FORMAT = 1 the format is:<time in seconds from boot>,<value with multiplier>,<units and other info>For MULTIPLIER_FORMAT = 2 the format is:<time in seconds from boot>,<value>,<multiplier number>,<units and other info>For MULTIPLIER_FORMAT = 3 the format is:<time in seconds from boot>,<value>,<multiplier character>,<units and other info>possible multiplier characters are'n' - nano'u' - micro'm' - milli' ' - multiplier of one'k' - kilo'M' - MegaThe following are configuration parameters:const uint8_t DMM_RX_PIN = A0; // DMM connected to analog pin 0.const uint8_t DMM_TX_PIN = A1; // Analog pin 1, not used.const uint8_t SD_CS_PIN = SS; // SD chip select pin.// Options for multiplier format are 1, 2, 3#define MULTIPLIER_FORMAT 3// If ECHO_TO_SERIAL is nonzero, print record to Serial.#define ECHO_TO_SERIAL 1
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