HT Italia HT2055 Step and contact meter up to 50A

HT Italia HT2055 consists in a power unit and a voltmetric unit, necessary for carrying out step and contact voltage measurements in industrial electric installations typical of AT and AAT (TN systems, transformer cabinets) with a rated test current up to 50A.

The two units, synchronized in time and current are capable of providing the correct value of step and contact voltages consistently with the real current values measured by the power unit, also taking into consideration the disturbance effects found on the measured circuit. It is also capable of measuring earth resistance and ground resistivity by the classical voltammetric method. These measurements can be saved in the internal memory of the voltmetric unit and downloaded onto the PC through the provided Windows software.

HT2055 Brochure

HT2055 Datasheet

HT2055 User Manual

SKU: HT Italia HT2055 Categories: Earth and Ground Testers, HT Italia, Step / Contact Meter Tags: Ground/Earth Testers, HT ITALIA

Description
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The HT Italia HT2055 is composed of a station and a meter designed to perform step/contact voltage measurements on electrical installations such as HV power stations (TN systems, electrical substations) with a rated test current of up to 50A according to international guidelines. Both units, initially synchronized in time and current, can perform an exact calculation of step and contact voltage values, applying the real test current measured by the station. An internal DSP filter also performs the automatic compensation of noise voltage disturbances affecting the measuring circuit. The instrument also permits measurement of ground resistance with 3-wire method and ground/soil resistivity with the 4-wire Wenner method. All results can be saved into the instrument’s internal memory and downloaded to a PC through the Windows software.

HT Italia HT2055 Functions:

Measurement of Step/Contact voltage through separate units
Synchronization between units
Test current up to 50A
LCD dot matrix display on both units
Earth resistance measurement
Ground resistivity measurement
Internal memory for data storage
USB and RS-232 ports for communication between units and PC
DSP filtering for compensation of noise disturbances
Dedicated Windows software

HT Italia HT2055 Standard Accessories:

Station unit HT2055S
Meter unit HT2055M
Power cord for HT2055S unit
Metal current probe, 1m length
Metal voltage probe, 60cm length
Metal plate (200x100mm), 2 pcs
Test cable black, 50m, 10mmq, with alligator clip, on wheel
Test cable black, 10m, 10mmq, with alligator clip
Test cable red, 50m
Test cable green, 10m, with alligator clip
Test cable red, 1m, with alligator clip
Test cable black, 1.5m length
Test cable black, with plug for HT2055M, 2x3m
Alligator clip black, 4 pcs
Rechargeable battery NiMH type AA, LR03, 6 pcs
External adapter 100-240V AC / 12V DC
USB cable
RS-232 cable
Windows software TeraView
Soft carrying bag, 2 pcs
Belt for use of HT2055M unit on neck
ISO9000 calibration certificate for HT2055M
ISO9000 calibration certificate for HT2055S
User manual
Carrying case

Optional Accessories:

Metal current probe, 1m length
Metal voltage probe, 60cm length

HT Italia HT2055 Specifications:

HT Italia HT2055 ELECTRICAL SPECIFICATIONS
Accuracy is given as ± [% readings + (number of dgt * resolution)] at reference conditions
Step/Contact voltage measurements
Measure voltage range	Resolution	Accuracy
0.01 ÷ 19.99mV	0.01mV	±(2.0% rdg + 2dgt)
20.0 ÷ 199.9mV	0.1mV
200 ÷ 1999mV	1mV
2.00 ÷ 19.99V	0.01V
20.0 ÷ 59.9V	0.1V
Calculated voltage range	Resolution	Accuracy
0.0 ÷ 199.9V	0.1V	Calculated value (*)
200 ÷ 999V	1V	Calculated value (*)

(*) The calculated value of step/contact voltage is obtained by the relationship: U_S=Umeas ∙Iflt/Igen; U_C=Umeas ∙Iflt/Igen;
Range of fault current (selectable)	10A ÷ 200kA
Input resistance(selectable)	1kΩ, 1MΩ
Noise reducing/erasing	DSP filtering 55Hz, 64dB rejection on noise at 50/60Hz

HT ITALIA HT2055 GENERAL SPECIFICATIONS
Power unit
Power supply	230V AC (±10%), 50/60Hz
Max. power consumption	750VA
Protection on power supply	fuse T 5A / 250V (5mm x 20mm)
Safety condition on meter	IEC/EN61010-1
Safety condition on test leads	IEC/EN61010-031
Installation over 1kVAC	HD 637 S1
Eart/resitivity measurements	ANSI/IEEE Std 81
Italian guideline	CEI 11-1
Spanish guideline	RAT 2008
Insulation	class I
Measurement category	CAT II 300V, CAT IV 50V
Pollution degree	3
Mechanical protection	IP30
Display	LCD dot matrix (128 x 64) with backlight
Internal memory	1000 locations
Generated current	values storage for min 24h
Comunication interface	RS-232 (with voltmetric unit)
Dimensions (LxWxH)	563 x 257 x 275mm
Weight (without accessories)	29.5kg
Voltmetric unit
Power supply	6×1.2V rechargeable batteries NiMH type AA LR03 6×1.5V alkaline batteries type AA LR03
Battery (chargeable) life	12 hours (typical)
External power supply	100-240V AC, 50-60Hz / 12V DC
Safety condition on meter	IEC/EN61010-1
Safety condition on test leads	IEC/EN61010-031
Insulation	double insulation
Measurement category	CAT IV 50V
Pollution degree	2
Mechanical protection	IP40
Display	LCD dot matrix (128 x 64) with backlight
Auto Power OFF	after 15 minutes of idleness (not disable)
Internal memory	1500 locations
Comunication interface	RS-232 and USB (to PC)
Dimensions (LxLaxH):	230 x 115 x 103mm
Weight (with batteries)	1.3kg
ENVIRONMENTAL CONDITIONS
Reference temperature	10°C ÷ 30°C
Reference humidity	35% ÷ 65%RH
Working temperature	0° ÷ 40°C
Working humidity	<80%HR
Storage temperature	-10 ÷ 60°C
Storage humidity	< 80%HR