Advertisement
Quick Links
Advertisement
Related Manuals for Huazheng HZGZ-IV
Summary of Contents for Huazheng HZGZ-IV
- Page 1 HZGZ-IV Portable DC System Ground-Fault Locator (Split Type) Instruction Manual...
-
Page 2: Part 2. Main Features Of The Instrument
However our product successfully resolved the interference problem so that we can have a foothold on the market. HZGZ-IV portable DC ground-fault locator (split type) adopts the technology of sine signal phase advance and data transfer algorithm. -
Page 3: Part 3. Technical Parameters
3. It can completely locate DC system's ground-fault and get rid of the interference of the large distributed capacitance from the site and also accurately lock the grounding area in a small range. 4. It applies to grounding caused by the string of AC or DC, ring network power supply grounding, diode isolated power supply grounding and high grounding resistance. - Page 4 working voltage: 12V(lithium battery power supply, 10.8V～12.6V) by-pass grounding resistance’s detection range: 0-200 KΩ by-pass grounding resistance’s detection accuracy: error ≤10％ power consumption: less than 1W overall dimensions (length × width × height): 238×134×45(mm) weight: 1.5kg adaptive temperature: -10℃-+50℃ Part 4. Function instructions of different parts of the front panel and menu introduction The instrument is consist of analyzer and ground-fault locator Analyzer...
- Page 5 Ground-falult locator Locator’s current clamp (1) Analyzer Power switch: place the switch on ‘ON’; connect working power supply; power indicator light lights up. Bus-bar/ branch: when place the switch on ‘bus-bar’, the instrument detect bus-bar (it will detect through bridge measurement method); when place the...
- Page 6 switch on ‘branch’, the instrument will detect branch (bridge measurement method will not work) LCD: color screen, resolution (320*240), dynamic display. (2) Ground-fault locator 1. Power key 2. Operating key: ↑ (up), ↓ (down), ← (left), → (right), ESC(escape), ENTER 3.
- Page 7 Main menu >> Alarm threshold Alarm threshold Ω 060K ENTER set branch grounding alarm threshold (default 60KΩ) 2. Phonetic function Main menu >> Phonetic function Phonetic function Main switch on Boot phonetic on Synchronizing prompt on Battery under voltage Grounding alarm on Volume level 10 ENTER 1) Main switch...
- Page 8 4) Battery under voltage on: phonetic alarm output when battery voltage less than 10.8V off: buzzer alarm output when battery voltage less than 10.8V factory setting is on 5) Grounding alarm: on: phonetic alarm output when grounding resistance less than alarm threshold off: buzzer alarm output when battery voltage less than alarm threshold (default on) 6) Volume level...
- Page 9 Main menu >> Detection method Detection method Auto-detection ENTER auto-detection: means real-time detection, you don't need to press any key manual-detection: means you should press the ENTER button to start the detection (default auto-detection) 5. Display function Main menu >> Display function Display function Test data display off Detection interface display...
- Page 10 2) Detection interface display common interface: display related detection information line by line waveform interface: display detected information through waveform (default waveform interface) 6. Start detection enter the testing interface Part 5. Interface display introduction 1、Analyzer 1) Bus-bar detection status When it's ungrounded, it shows as follows.
- Page 11 By-pass detection status Bus-bar total voltage: 154.2 V Positive bus-bar voltage: 124.6 V Negative bus-bar voltage: 29.5 V Positive grounding resistance: 999.9 KΩ Negative grounding resistance: 47.1 KΩ The value of AC string current: 000 V Stop the detection of bus-bar. The instrument is testing the by-pass.
- Page 12 Jaw opening open Grounding locating Grounding resistance: KΩ Grounding direction: Alarm threshold: 060 KΩ Detection status: jaw opening open Synchronizing signal shaking hands Receiver, please reset ‘by-pass’ status Press ESC to return main menu 2) Waveform interface Ungrounded Grounding locating Detecting 999 KΩ...
-
Page 13: Part 6. Directions For Use
Grounded in the negative direction Grounding locating Detection 050KΩ Threshold 060KΩ Jaw opening open Grounding locating Current clamp’s opening open Part 6. Directions for use 1. Make the analyzer’s power switch off, insert output signal line plug into the socket of analyzer, clip the positive bus-bar (red crocodile clip) of signal output line on the positive ground of current bus-bar, clip negative bus-bar of signal output line (black crocodile clip) on negative ground of current bus-bar, clip ground of signal output line (green crocodile clip) on the iron shell (the... - Page 14 display whether it’s positive grounding or negative grounding; If it's ungrounded, it displays 999.9KΩ. 3. Open up ground-fault locator, LCD will display related parameters. If the battery voltage is under voltage, it means the instrument's battery has no power and needs to charge. Connect the charger's AC220V power supply, insert the charging plug into charging jacks, after 3 hours' chargement the lithium battery can be used again.
- Page 15 detect the two feeder separately in two times. You can lock the positive feeder firstly, then lock the negative feeder line, vice versa. 6. Find the ground-fault by-pass, you can seek the ground-fault point along this by-pass line by the direction of grounding. Detection probe move backward along this by-pass, if the measured resistance's value increase suddenly, the nearby point before this test point is the ground-fault point (namely the ground-point locates between these two points).
-
Page 16: Part 8. Matters Need Attention
2. After finding the grounded by-pass, you need to seek from its sub by-pass. 3. Clip the current clamp on different point of the line, if you detect grounding point on point A, but not point B, then the fault point is on the line between A and B.
Need help?
Do you have a question about the HZGZ-IV and is the answer not in the manual?
Questions and answers