OMICRON HGT1 Handheld Grounding Tester User Manual

OMICRON HGT1 Handheld Grounding Tester

HGT1 Technical Data

OMICRON Electronics GmbH 2015. All rights reserved. This technical data was extracted from the following manual: ENU 1046 05 01 All rights including translation reserved. Reproduction of any kind, for example, photocopying, microfilming, optical character recognition, and/or storage in electronic data processing systems, requires the explicit consent of OMICRON. The document content represents the technical status at the time of writing and is subject to change without prior notice.

We have done our best to ensure that the information given in this document is useful, accurate, and entirely reliable. However, OMICRON does not assume responsibility for any inaccuracies which may be present. OMICRON translates this document from the source language English into a number of other languages. Any translation of this document is done for local requirements, and in the event of a dispute between the English and a non-English version, the English version of this document shall govern.

Technical specifications

Table 1-1 HGT1 Input

Input Impedance Selection| Input Impedance|

Voltage

| Accuracy

(15 Hz … 20 kHz)

| Residual Noise (100 Hz mode)
---|---|---|---|---
1 kΩ| 1 kΩ| 25 VRMS| +0.5 %; -1.0 %|

< 10 uV

1 kΩ + 1 kΩ| 2 kΩ| 50 VRMS| +0.5 %; -1.0 %
HIGH Z| 200 kΩ| 25 VRMS| +0.5 %; -1.0 %

Table 1-2 FFT Specifications
The HGT1 uses zoom FFT with the following parameters:

• FFT size: 512 samples
• FFT resolution: 142 bins
• FFT repetition rate: 187,5 Hz (one FFT per 5.3 ms).
• The results of the FFT shown on the HGT1’s screen are updated every 50 ms by averaging the individual FFT results.

Table 1-3
FFT parameters for 100 Hz and 400 Hz frequency range selection

HGT1 User Manual

Figure 1-1 Filter selectivity for 100 Hz range

Table 1-4 Environmental Conditions
Table 1-5 Mechanics

Dimensions (L x W x H)| 180 mm x 90 mm x 45 mm

7.1″ x 3.5″ x 1.8″

---|---
Weight| 480 g (1 lb) including Li-Po battery

CE declaration of conformity

We, the manufacturer
NTi Audio AG
Im alten Riet 102
9494 Schaan

Liechtenstein, Europe does hereby declare that the HGT1, released in 2013, complies with the following standards or other standard documents:

• EMC: 2004/108/EG
• Harmonized standards: EN 61326-1
• Explosive atmospheres (ATEX): 94/9/EG
• Directive 2011/65/EC on the restriction of the use of certain hazardous substances in electrical and electronic equipment (RoHS).
• Directive 2002/96/EC on waste electrical and electronic equipment (WEEE).

This declaration will become invalid if modifications to the instrument are carried out without the written approval of NTi Audio.
Date: 1. February 2013
Signature:
Position: Technical Director

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