Key Features At A Glance

CAT IV 600V / CAT III 1000V measurement category with double insulation per IEC/EN61010-1

60000-count TRMS display with dual 3½-digit (6000) and 4½-digit (60000) resolution, bargraph, and backlight

TRMS measurement of AC, DC, and AC+DC voltage and current

Low-impedance LoZ mode (~3kΩ input) for AC/DC voltage measurement

AC/DC current measurement with transducer clamps up to 3000A

Type K thermocouple temperature measurement from -40°C to 760°C

Capacitance to 6mF, frequency to 10MHz, resistance to 60MΩ

DC 4-20mA% loop readings plus PEAK, MAX/MIN, REL, and Data/Auto HOLD functions

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.

Product Core & Specifications

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).

About this New unit

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.

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

recommand products