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- [ 4½
Digit true RMS/DMM
with Dual
Display ]
- [ 4½
Digit Multimeter
with Adjustable
Display ]
- [ Autoranging
true
RMS
DMM
]
- [ Heavy
Duty
Autoranging
DMM
]
- [ Heavy
Duty
Phase
Indicator/DMM
]
- [ Handheld
Multiscope ]
- [ Rangemaster
II+ DMM ]
Large Backlit display, Total Harmonic Distortion,
and choice of Capacitance or Duty Cycle plus RS-232
interface
Features:
- THD @ 50/60 Hz mode displays Total Harmonic Distortion as percent of total RMS value (AC volts or current)
- True RMS on AC voltage and current ranges
- Capacitance or Duty Cycle models include AC/DC voltage and current, frequency, temperature measurements plus continuity beeper and diode test
- Auto or manual ranging
- GO NO-GO programming of reference test points
- Record, Offset and Relative mode
- Large 3999 count backlit display with 41 segment bar graph
- 600V high energy fuse on all current ranges
- Mechanical Safety shutter protection for current terminals
- Designed to meet UL 1244 and IEC 1010
- Min/Max & Average readings
- Auto off with disable capability
- Auto Hold function freezes reading when stable
- Complete with test leads, 9V battery, protective holster & K temperature probe.
| Specifications | Range | Max. Resolution | Basic
accuracy (%rdg+digits) |
| AC voltage | 4V,40V,400V,750V | 1mV | ±(0.75%+3d) 45-1KHz |
| DC voltage | 400mV,4V,40V,400V,1000V | 100µV | ±(0.3%+2d) |
| AC current | 400µA,4000µA,40mA,400mA,4A,10A | 0.1µA | ±(1%+5d) 5-1KHz |
| DC current | 400µA,4000µA,40mA,400mA,4A,10A | 0.1µA | ±(0.5%+1d) |
| Resistance (ohms) | 400,4K,40K,400K,4M,40M | 0.1 ohms | ±(0.5%+10d) |
| Capacitance (380289) | 1µF,10µF,100µF,1000µF | 0.001µF | ±(1.9%+2d) |
| Duty Cycle (380288) | 0-100% (1.5Hz to 20KHz) | 1% | ±(0.2% per KHz+0.1%) |
| Frequency | 0.5Hz to > 200KHz | 0.01Hz | ±(0.05%+2d) |
| Temperature | -40 to 2498°F (-40 to 1370°C) | 1° | ±(1%+1.8°F) |
| THD (50/60Hz) | 0.0 to 99.9% | 0.1% | Voltage & current ±(2%+2d) |
| Continuity | Open circuit <1.2V, threshold <100 ohms | ||
| Diode check | Open circuit <3V, Max test current 2.5mA | ||
| Dimensions/weight | 1.6x3.3x7.5" (40x85x190mm) / 13.4oz (380g) | ||
| CAT. NO. | DESCRIPTION |
| EX380288-0..... | 3-3/4 Digit Trms THD multimeter with Duty Cycle |
| EX380288-N.... | Certificate of traceability to NIST for 380288 |
| EX380289-0..... | 3-3/4 Digit Trms THD Mtultimeter with Capacitance |
| EX380289-N.... | Certificated of Traceability to NIST for 380289 |
| EX380298-0..... | Data Acquisition Software and serial cable for 380288/9 |
| EX409997-0..... | Vinyl Pouch Carrying Case |