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The HT63 is a CAT IV 60000-count true-RMS (TRMS) digital multimeter manufactured by HT Instruments (HT Italia SRL). It pairs a dual-resolution LCD — 3½-digit at 6000 counts and 4½-digit at 60000 counts — with a bargraph, backlight, automatic polarity indication, and an "OL" over-range indication, and applies TRMS conversion across its AC measurement functions.
A digital multimeter is the most universal instrument on an electrical or electronics bench, consolidating voltage, current, resistance, and a range of derived measurements into a single handheld unit. A true-RMS meter measures the actual heating value of an AC signal, which keeps readings accurate on the distorted, non-sinusoidal waveforms common in modern electrical systems.
ValueTronics stocks and holds its own inventory in a 20,000-square-foot secure warehouse at 1675 Cambridge Drive in Elgin, Illinois.
| Specification | Value |
|---|---|
| General Accuracy Conditions | |
| Accuracy formula | [reading + (num dgt × resolution)] at ta 18°C–28°C, <75% RH |
| HIRES feature | Accuracy specified with HIRES not active; with HIRES active, multiply ×10 the dgts of the accuracy |
| DC Voltage (Input impedance >10 MΩ; Overload protection 1000 V DC/AC rms) | |
| 600.0 mV | Resolution 0.1 mV; Accuracy (0.9%rdg + 5dgt) |
| 6.000 V | Resolution 0.001 V; Accuracy (0.9%rdg + 5dgt) |
| 60.00 V | Resolution 0.01 V; Accuracy (0.9%rdg + 5dgt) |
| 600.0 V | Resolution 0.1 V; Accuracy (0.9%rdg + 5dgt) |
| 1000 V | Resolution 1 V; Accuracy (1.2%rdg + 5dgt) |
| AC TRMS Voltage (Input impedance >10 MΩ; Overload protection 1000 V DC/AC rms) | |
| 600.0 mV | Resolution 0.1 mV; Accuracy (1.0%rdg + 5dgt) [50 Hz–1 kHz], (3.0%rdg + 5dgt) [1 kHz–5 kHz] |
| 6.000 V | Resolution 0.001 V; Accuracy (1.0%rdg + 5dgt) [50 Hz–1 kHz], (3.0%rdg + 5dgt) [1 kHz–5 kHz] |
| 60.00 V | Resolution 0.01 V; Accuracy (1.0%rdg + 5dgt) [50 Hz–1 kHz], (3.0%rdg + 5dgt) [1 kHz–5 kHz] |
| 600.0 V | Resolution 0.1 V; Accuracy (1.0%rdg + 5dgt) [50 Hz–1 kHz], (3.0%rdg + 5dgt) [1 kHz–5 kHz] |
| 1000 V | Resolution 1 V; Accuracy (1.0%rdg + 5dgt) [50 Hz–1 kHz], Not specified [1 kHz–5 kHz] |
| AC Voltage notes | Accuracy specified from 5% to 100% of the measuring range and crest factor ≤3. PEAK function accuracy (10%rdg + 30dgt), response time 1 ms. dBV function accuracy (1.5%rdg + 5dgt) (f≤60 Hz), (3.0%rdg + 5dgt) (60 Hz–1 kHz), not specified (1–5 kHz). For non-sinusoidal waveforms: (4.5%rdg + 10dgt) (50 Hz–1 kHz), (10.0%rdg + 10dgt) (1 kHz–5 kHz) |
| AC+DC TRMS Voltage (50 Hz–1 kHz; Input impedance >10 MΩ; Overload protection 1000 V DC/AC rms) | |
| 600.0 mV | Resolution 0.1 mV; Accuracy (1.5%rdg + 10dgt) |
| 6.000 V | Resolution 0.001 V; Accuracy (1.5%rdg + 10dgt) |
| 60.00 V | Resolution 0.01 V; Accuracy (1.5%rdg + 10dgt) |
| 600.0 V | Resolution 0.1 V; Accuracy (1.5%rdg + 10dgt) |
| 1000 V | Resolution 1 V; Accuracy (1.5%rdg + 10dgt) |
| DC/AC TRMS Voltage with Low Impedance (LoZ) (Input impedance approx 3 kΩ; Overload protection 1000 V DC/AC rms) | |
| 6.000 V | Resolution 0.001 V; Accuracy (3.0%rdg + 40dgt) |
| 60.00 V | Resolution 0.01 V; Accuracy (3.0%rdg + 40dgt) |
| 600.0 V | Resolution 0.1 V; Accuracy (3.0%rdg + 40dgt) |
| 1000 V | Resolution 1 V; Accuracy (3.0%rdg + 40dgt) |
| LoZ note | AC+DC accuracy: (3.5%rdg + 40dgt) |
| Diode Test | |
| Max test current | <1.5 mA |
| Open voltage | 2.8 V |
| 4-20 mA % Readings | |
| Range | -25% to 125% |
| Resolution | 0.1% |
| Accuracy | 50dgt |
| Scaling | 0 mA = -25%, 4 mA = 0%, 20 mA = 100%, 24 mA = 125% |
| DC Current (Overload protection: Fast Fuse 0.8 A/1 kVAC/DC on inputs mA, µA; Fast Fuse 10 A/1 kVAC/DC on 10 A input) | |
| 600.0 µA | Resolution 0.1 µA; Accuracy (1.5%rdg + 5dgt) |
| 6000 µA | Resolution 1 µA; Accuracy (1.5%rdg + 5dgt) |
| 60.00 mA | Resolution 0.01 mA; Accuracy (1.5%rdg + 5dgt) |
| 600.0 mA | Resolution 0.1 mA; Accuracy (1.5%rdg + 5dgt) |
| 10.00 A | Resolution 0.01 A; Accuracy (1.5%rdg + 5dgt) |
| AC TRMS Current (Overload protection: Fast Fuse 0.8 A/1 kVAC/DC on inputs mA, µA; Fast Fuse 10 A/1 kVAC/DC on 10 A input) | |
| 600.0 µA | Resolution 0.1 µA; Accuracy (2.5%rdg + 5dgt) [50 Hz–1 kHz], (3.5%rdg + 5dgt) [1 kHz–5 kHz] |
| 6000 µA | Resolution 1 µA; Accuracy (2.5%rdg + 5dgt) [50 Hz–1 kHz], (3.5%rdg + 5dgt) [1 kHz–5 kHz] |
| 60.00 mA | Resolution 0.01 mA; Accuracy (2.5%rdg + 5dgt) [50 Hz–1 kHz], (3.5%rdg + 5dgt) [1 kHz–5 kHz] |
| 600.0 mA | Resolution 0.1 mA; Accuracy (2.5%rdg + 5dgt) [50 Hz–1 kHz], (3.5%rdg + 5dgt) [1 kHz–5 kHz] |
| 10.00 A | Resolution 0.01 A; Accuracy (2.5%rdg + 5dgt) [50 Hz–1 kHz], (3.5%rdg + 5dgt) [1 kHz–5 kHz] |
| AC Current notes | Accuracy specified from 5% to 100% of the measuring range. PEAK function accuracy (10%rdg + 30dgt). AC+DC accuracy: (2.8%rdg + 5dgt) (50 Hz–1 kHz). For non-sinusoidal waveforms: (4.5%rdg + 10dgt) (50 Hz–1 kHz), (10.0%rdg + 10dgt) (1 kHz–5 kHz) |
| DC Current with Transducer Clamps (Accuracy referred to instrument only, without transducer clamp; Overload protection 1000 V DC/AC rms) | |
| 1000 mA | Output ratio 1000 mV/1000 mA; Resolution 1 mA; Accuracy (1.5%rdg + 6dgt) |
| 10 A / 30 A | Output ratio 100 mV/1 A; Resolution 0.01 A |
| 40 A | Output ratio 10 mV/1 A; Accuracy (1.5%rdg + 26dgt) |
| 100 A | Resolution 0.1 A; Accuracy (1.5%rdg + 6dgt) |
| 300 A / 400 A | Output ratio 1 mV/1 A; Resolution 1 A; Accuracy (1.5%rdg + 26dgt) |
| 1000 A | Accuracy (1.5%rdg + 6dgt) |
| AC TRMS Current with Transducer Clamps (Accuracy referred to instrument only, without transducer clamp; Overload protection 1000 V DC/AC rms) | |
| 1000 mA | Output ratio 1000 mV/1000 mA; Resolution 1 mA; Accuracy (2.5%rdg + 10dgt) |
| 10 A / 30 A | Output ratio 100 mV/1 A; Resolution 0.01 A |
| 40 A | Output ratio 10 mV/1 A; Accuracy (3.5%rdg + 30dgt) |
| 100 A | Resolution 0.1 A; Accuracy (2.5%rdg + 10dgt) |
| 300 A / 400 A | Output ratio 1 mV/1 A; Resolution 1 A; Accuracy (3.5%rdg + 30dgt) |
| 1000 A | Accuracy (2.5%rdg + 10dgt) |
| 3000 A | Output ratio 1 mV/1 A; Resolution 1 A |
| AC Clamp notes | Accuracy specified from 5% to 100% of the measuring range. For pulse waveforms: (10.0%rdg + 10dgt). PEAK function accuracy (10%rdg + 30dgt). AC+DC TRMS current accuracy (50 Hz–1 kHz): (3.0%rdg + 10dgt). For non-sinusoidal waveforms: (4.5%rdg + 10dgt) (50 Hz–1 kHz) |
| Resistance and Continuity Test (Overload protection 1000 V DC/AC rms) | |
| 600.0 Ω | Resolution 0.1 Ω; Accuracy (2.0%rdg + 9dgt); Buzzer <35 Ω |
| 6.000 kΩ | Resolution 0.001 kΩ; Accuracy (1.2%rdg + 5dgt) |
| 60.00 kΩ | Resolution 0.01 kΩ; Accuracy (1.2%rdg + 5dgt) |
| 600.0 kΩ | Resolution 0.1 kΩ; Accuracy (1.2%rdg + 5dgt) |
| 6.000 MΩ | Resolution 0.001 MΩ; Accuracy (2.0%rdg + 10dgt) |
| 60.00 MΩ | Resolution 0.01 MΩ; Accuracy (2.0%rdg + 10dgt) |
| Frequency (Electrical circuits) (Overload protection 1000 V DC/AC rms) | |
| 40.00 Hz – 10.00 kHz | Resolution 0.01 Hz; Accuracy (0.5%rdg); Sensitivity 15 Vrms |
| Frequency (Electronic circuits) (Sensitivity >2.0 Vrms min for <100 kHz, 5 Vrms min for >100 kHz, 20% < duty < 80%; Overload protection 1000 V DC/AC rms) | |
| 60.000 Hz | Resolution 0.001 Hz; Accuracy (1.0%rdg + 2dgt) |
| 600.00 Hz | Resolution 0.01 Hz; Accuracy (1.0%rdg + 2dgt) |
| 6.0000 kHz | Resolution 0.0001 kHz; Accuracy (1.0%rdg + 2dgt) |
| 60.000 kHz | Resolution 0.001 kHz; Accuracy (1.0%rdg + 2dgt) |
| 600.00 kHz | Resolution 0.01 kHz; Accuracy (1.0%rdg + 2dgt) |
| 6.0000 MHz | Resolution 0.0001 MHz; Accuracy (1.0%rdg + 2dgt) |
| 10.000 MHz | Resolution 0.001 MHz; Accuracy (1.0%rdg + 2dgt) |
| Duty Cycle (Overload protection 1000 V DC/AC rms) | |
| 0.1 – 99.9% | Resolution 0.01%; Accuracy (1.2%rdg + 2dgt); Pulse width 100 µs – 100 ms; Frequency 5 Hz – 100 kHz |
| Capacitance (Overload protection 1000 V DC/AC rms) | |
| 60.00 nF | Resolution 0.01 nF; Accuracy (3.5%rdg + 10dgt) |
| 600.0 nF | Resolution 0.1 nF; Accuracy (3.5%rdg + 10dgt) |
| 6.000 µF | Resolution 0.001 µF; Accuracy (2.5%rdg + 10dgt) |
| 60.00 µF | Resolution 0.01 µF; Accuracy (2.5%rdg + 10dgt) |
| 600.0 µF | Resolution 0.1 µF; Accuracy (2.5%rdg + 10dgt) |
| 6.000 mF | Resolution 0.001 mF; Accuracy (3.5%rdg + 10dgt) |
| Temperature with Type K Probe (Accuracy referred to instrument without probe; Overload protection 1000 V DC/AC rms) | |
| -40.0 °C ÷ 600.0 °C | Resolution 0.1 °C; Accuracy (2.0%rdg + 3°C) |
| 600 °C ÷ 760 °C | Resolution 1 °C; Accuracy (2.0%rdg + 3°C) |
| -58.0 °F ÷ 600.0 °F | Resolution 0.1 °F; Accuracy (2.0%rdg + 5.5°F) |
| 600 °F ÷ 1400 °F | Resolution 1 °F; Accuracy (2.0%rdg + 5.5°F) |
| General Specifications | |
| Display | LCD, 3½ dgt (6000 counts) and 4½ dgt (60000 counts), decimal point and bargraph |
| Polarity | Automatic polarity indication |
Important: Current inputs are protected by fast fuses rated 0.8 A/1kV AC/DC (mA and µA inputs) and 10 A/1kV AC/DC (10 A input).
This is a brand-new, factory-sealed unit, supplied exactly as it arrives from the manufacturer and backed by the full manufacturer warranty. For the exact configuration, available options, included accessories, or current lead time for your application, our Test Architects can confirm the details before you order.
ValueTronics supplies both new and used test and measurement equipment. New units ship factory-sealed, exactly as received from the manufacturer; every used unit is inspected and functionally verified in-house at our 20,000 sq ft secure facility in Elgin, Illinois before it ships. Our Test Architects can help you select the condition, calibration, and configuration that fit your application.
Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.
Model No
HT
Condition
Factory New
Manufacturer
HT Italia
Multi_met_acv
1000V
Multi_met_dcv
1000V
Multi_met_dig
4½
Multi_met_type
TRMS
30+ Years in Business
Secure Payments
Sell Test Equipments
Knowledgeable Staff
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30+ Years in Business
Secure Payments
Sell Test Equipments
Knowledgeable Staff
On-site Lab
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