199999/120000 COUNTS DUAL DISPLAY DIGITAL MULTIMETER GDM-8251A Rear Panel The GDM-8255A/8251A portable precision multimeters feature 199,999/120,000 counts, a dual display, a 0.012% DCV accuracy and 2w/4w measurement. The VFD display technology provides the excellent observation of contrast and brightness. The GDM-8255A/8251A carries an extensive list of standard measurement items with a dual-display allowing two measurement items to be displayed simultaneously. Advanced measurement functions, such as Max/Min, Hold, Relative value and Compare, are suitable for a multiplicity of applications such as production testing, research and field verification. The USB, RS-232C and 9-pin digital I/O interface are included as standard features for remote control and data capturing for ATE applications. FEATURES * GDM-8255A 199,999 Counts Display GDM-8251A 120,000 Counts Display * VFD Two Colors Display * 0.012% DCV Accuracy * True RMS (AC, AC+DC) * 9 Major Measuring Functions and 10 Advanced Measurement Functions * 2W/4W Resistance Measurement * High Voltage 1000V and 10A Current Range * Standard Interface : RS-232C, USB Device, Digital I/O * Free PC Software (DMM-VIEWER), LabVIEW Driver * Optional 16+2 Channels Scanner Card (GDM-SC1 for GDM-8255A only) GTL-117 Test Lead For: GDM-8255A/8251A, GDM-8245/8246 The optional scanner card (GDM-SC1), creates a self-contained multipoint measurement solution with plug-in design. This approach eliminates the complexities of multipoint measurements and data processing. The scanner lets users effectively measure multiple channels connected to a single GDM8255A. Each scanner card has 16 general purpose channels and 2 extra channels for current (ACI, DCI) measurements. All channels are fully isolated (Hi and Lo). Up to two scanner cards can be inserted into each multimeter for a maximum of 36 channels. These optional modules not only provide customers with a complete hands-free multiple measurement solution, but also provide a cost effect upgrade path compared to purchasing dedicated instruments.(OPTIONAL FOR GDM-8255A ONLY) SPECIFICATIONS GDM-8255A 199,999 Counts Slow : 5 1/2 digits, 10 readings/second Medium : 4 1/2 digits, 30 readings/second Fast : 3 1/2 digits, 60 readings/second DC VOLTAGE Range Accuracy Input Impedance 100mV, 1V, 10V, 100V, 1000V 5 ranges (0.012% rdg + 5 digits) 10M AC VOLTAGE True RMS Range 100mV, 1V, 10V, 100V, 750V 5 ranges Accuracy 20Hz~45Hz : (1% rdg + 100 digits) 45Hz ~ 10kHz : (0.2% rdg + 100 digits) 10kHz ~ 30kHz : (1% rdg + 100 digits) 30kHz~100kHz : (3% rdg + 200 digits) Input Impedance 1.1M in parallel with approx. 100pF DC CURRENT Range 10mA, 100mA, 1A, 10A 4 ranges Accuracy 10mA , 100mA : (0.05% rdg + 15 digits) 1A, 10A range : (0.2% rdg + 5 digits) AC CURRENT TRUE RMS BASIC T & M INSTRUMENTS GTL-247 USB Cable GDM-01 Calibration key For: GDM-8255A/8251A 120,000 Counts SAMPLE RATE Range Accuracy A-A type cable, Approx. 1.8m For: GDM-8255A/8251A GDM-8251A FULL SCALE RESISTANCE Range 2W Accuracy 4W Accuracy GDM-8255A SPECIFICATIONS CONTINUITY BEEPER 1 ~ 1000 Define by user TEMPERATURE 0 C ~ 300 C : J , K , T Type OTHER FUNCTIONS Auto range / Manual, Math : MX + B/ % / 1/X Max, Min, dBm, dB, REL, Hold, Compare, Store, Recall DISPLAY VFD, Two Colors Display INTERFACE Digital I/O, USB, RS-232C POWER SOURCE AC 100V~240V 10%, 50/60Hz DIMENSIONS & WEIGHT 265(W) x 107(H) x 350(D) mm, Approx. 2.6 kg Multipoint Testing can be facilitated by simple insertion of scanner card. For: GDM-8255A GTL-108A 4W Type Test Lead For: GOM-801H/802 , GDM-8255A/8251A ORDERING INFORMATION GDM-8255A 199,999 Counts Dual Display Digital Multimeter GDM-8251A 120,000 Counts Dual Display Digital Multimeter ACCESSORIES : Quick start user manual x 1, Power cord x 1, Test lead GTL-117 x 1, USB Cable GTL-247 CD x 1 (including complete user manual, upgrade program and PC software DMM Viewer), Calibration key GDM-01 x 1 (Compatible with Fluke 5720A/5725A calibrators only) OPTION Opt.01 GTL-232 RS-232C Cable For: GDM-8255A/8251A Scanner Card (GDM-SC1 for GDM-8255A only) OPTIONAL ACCESSORIES GTL-108A GTL-232 4W Type test lead RS232C Cable, 9-pin female to 9-pin, null modem for computer FREE DOWNLOAD PC Software Driver DMM-VIEWER USB Driver LabVIEW Driver 7 ranges DMM-Viewer PC Software DIODE TEST Open Circuit Voltage 2.0V, Test Current 0.5mA FREQUENCY 10Hz~800kHz General Control Mode E3 GDM-SC1 Scanner card NOTE : (*)USE "REL" Mode 10mA, 100mA, 1A, 10A 4 ranges 10mA , 100mA range : 20Hz ~ 50Hz : (1.5% rdg + 100 digits) 50Hz ~ 10kHz : (0.5% rdg + 100 digits) 10kHz~20kHz : (2% rdg + 200 digits) 1A , 10A range : 50Hz ~ 10kHz : (1% rdg + 100 digits) 100 , 1k , 10k , 100k , 1M , 10M , 100M 100 range : (0.1% rdg + 8digits)(*) 1k range : (0.08% rdg + 5 digits)(*) 10k ~ 1M 3 ranges : (0.06% rdg + 5digits) 10M range : (0.3% rdg + 5 digits) 100M range : (3% rdg + 8 digits) 100 range : (0.05% rdg + 8 digits)(*) 1k ~ 1M 4 ranges : (0.05% rdg + 5 digits) 10M range : (0.3% rdg + 5 digits) 100M range : (3% rdg + 8 digits) GDM-8255A Rear Panel BASIC T & M INSTRUMENTS GDM-8255A (199999 Counts) GDM-8251A (120000 Counts) For convenient PC-based remote control and extensive data capture, the GDM-8255A/8251A includes DMM-Viewer software at no additional cost. DMM-Viewer mimics the operation of the multimeters on the PC, allowing you to quickly use the software with little effort. Reload-Data Graphic Scanner Control Mode Made to Measure. Good Will Instrument Co., Ltd. E4 199999/120000 COUNTS DUAL DISPLAY DIGITAL MULTIMETER GDM-8251A Rear Panel The GDM-8255A/8251A portable precision multimeters feature 199,999/120,000 counts, a dual display, a 0.012% DCV accuracy and 2w/4w measurement. The VFD display technology provides the excellent observation of contrast and brightness. The GDM-8255A/8251A carries an extensive list of standard measurement items with a dual-display allowing two measurement items to be displayed simultaneously. Advanced measurement functions, such as Max/Min, Hold, Relative value and Compare, are suitable for a multiplicity of applications such as production testing, research and field verification. The USB, RS-232C and 9-pin digital I/O interface are included as standard features for remote control and data capturing for ATE applications. FEATURES * GDM-8255A 199,999 Counts Display GDM-8251A 120,000 Counts Display * VFD Two Colors Display * 0.012% DCV Accuracy * True RMS (AC, AC+DC) * 9 Major Measuring Functions and 10 Advanced Measurement Functions * 2W/4W Resistance Measurement * High Voltage 1000V and 10A Current Range * Standard Interface : RS-232C, USB Device, Digital I/O * Free PC Software (DMM-VIEWER), LabVIEW Driver * Optional 16+2 Channels Scanner Card (GDM-SC1 for GDM-8255A only) GTL-117 Test Lead For: GDM-8255A/8251A, GDM-8245/8246 The optional scanner card (GDM-SC1), creates a self-contained multipoint measurement solution with plug-in design. This approach eliminates the complexities of multipoint measurements and data processing. The scanner lets users effectively measure multiple channels connected to a single GDM8255A. Each scanner card has 16 general purpose channels and 2 extra channels for current (ACI, DCI) measurements. All channels are fully isolated (Hi and Lo). Up to two scanner cards can be inserted into each multimeter for a maximum of 36 channels. These optional modules not only provide customers with a complete hands-free multiple measurement solution, but also provide a cost effect upgrade path compared to purchasing dedicated instruments.(OPTIONAL FOR GDM-8255A ONLY) SPECIFICATIONS GDM-8255A 199,999 Counts Slow : 5 1/2 digits, 10 readings/second Medium : 4 1/2 digits, 30 readings/second Fast : 3 1/2 digits, 60 readings/second DC VOLTAGE Range Accuracy Input Impedance 100mV, 1V, 10V, 100V, 1000V 5 ranges (0.012% rdg + 5 digits) 10M AC VOLTAGE True RMS Range 100mV, 1V, 10V, 100V, 750V 5 ranges Accuracy 20Hz~45Hz : (1% rdg + 100 digits) 45Hz ~ 10kHz : (0.2% rdg + 100 digits) 10kHz ~ 30kHz : (1% rdg + 100 digits) 30kHz~100kHz : (3% rdg + 200 digits) Input Impedance 1.1M in parallel with approx. 100pF DC CURRENT Range 10mA, 100mA, 1A, 10A 4 ranges Accuracy 10mA , 100mA : (0.05% rdg + 15 digits) 1A, 10A range : (0.2% rdg + 5 digits) AC CURRENT TRUE RMS BASIC T & M INSTRUMENTS GTL-247 USB Cable GDM-01 Calibration key For: GDM-8255A/8251A 120,000 Counts SAMPLE RATE Range Accuracy A-A type cable, Approx. 1.8m For: GDM-8255A/8251A GDM-8251A FULL SCALE RESISTANCE Range 2W Accuracy 4W Accuracy GDM-8255A SPECIFICATIONS CONTINUITY BEEPER 1 ~ 1000 Define by user TEMPERATURE 0 C ~ 300 C : J , K , T Type OTHER FUNCTIONS Auto range / Manual, Math : MX + B/ % / 1/X Max, Min, dBm, dB, REL, Hold, Compare, Store, Recall DISPLAY VFD, Two Colors Display INTERFACE Digital I/O, USB, RS-232C POWER SOURCE AC 100V~240V 10%, 50/60Hz DIMENSIONS & WEIGHT 265(W) x 107(H) x 350(D) mm, Approx. 2.6 kg Multipoint Testing can be facilitated by simple insertion of scanner card. For: GDM-8255A GTL-108A 4W Type Test Lead For: GOM-801H/802 , GDM-8255A/8251A ORDERING INFORMATION GDM-8255A 199,999 Counts Dual Display Digital Multimeter GDM-8251A 120,000 Counts Dual Display Digital Multimeter ACCESSORIES : Quick start user manual x 1, Power cord x 1, Test lead GTL-117 x 1, USB Cable GTL-247 CD x 1 (including complete user manual, upgrade program and PC software DMM Viewer), Calibration key GDM-01 x 1 (Compatible with Fluke 5720A/5725A calibrators only) OPTION Opt.01 GTL-232 RS-232C Cable For: GDM-8255A/8251A Scanner Card (GDM-SC1 for GDM-8255A only) OPTIONAL ACCESSORIES GTL-108A GTL-232 4W Type test lead RS232C Cable, 9-pin female to 9-pin, null modem for computer FREE DOWNLOAD PC Software Driver DMM-VIEWER USB Driver LabVIEW Driver 7 ranges DMM-Viewer PC Software DIODE TEST Open Circuit Voltage 2.0V, Test Current 0.5mA FREQUENCY 10Hz~800kHz General Control Mode E3 GDM-SC1 Scanner card NOTE : (*)USE "REL" Mode 10mA, 100mA, 1A, 10A 4 ranges 10mA , 100mA range : 20Hz ~ 50Hz : (1.5% rdg + 100 digits) 50Hz ~ 10kHz : (0.5% rdg + 100 digits) 10kHz~20kHz : (2% rdg + 200 digits) 1A , 10A range : 50Hz ~ 10kHz : (1% rdg + 100 digits) 100 , 1k , 10k , 100k , 1M , 10M , 100M 100 range : (0.1% rdg + 8digits)(*) 1k range : (0.08% rdg + 5 digits)(*) 10k ~ 1M 3 ranges : (0.06% rdg + 5digits) 10M range : (0.3% rdg + 5 digits) 100M range : (3% rdg + 8 digits) 100 range : (0.05% rdg + 8 digits)(*) 1k ~ 1M 4 ranges : (0.05% rdg + 5 digits) 10M range : (0.3% rdg + 5 digits) 100M range : (3% rdg + 8 digits) GDM-8255A Rear Panel BASIC T & M INSTRUMENTS GDM-8255A (199999 Counts) GDM-8251A (120000 Counts) For convenient PC-based remote control and extensive data capture, the GDM-8255A/8251A includes DMM-Viewer software at no additional cost. DMM-Viewer mimics the operation of the multimeters on the PC, allowing you to quickly use the software with little effort. Reload-Data Graphic Scanner Control Mode Made to Measure. Good Will Instrument Co., Ltd. E4