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| Megger MHP1 and MHP2 HiPots are designed for workshop and production testing of electrical items. |
Megger MHP1 and MHP2 HiPots are designed for workshop and production testing of electrical items. The MHP1 has an AC output voltage while the MHP2 offers both AC and DC outputs.
A manually operated variac controls the test voltage. A simple jumper setting decides how the voltage is applied as follows:
For short duration test the jumper is to toggle mode. Under this setting, the voltage is only applied as long as the start button is depressed.
For longer duration tests, set the jumper to toggle mode. In this mode, the start button will begin the test voltage output, which will continue until the button is depressed.
In either mode, the test voltage application starts at a zero crossing and will be applied without overshoot.
At the end of a test , the stopping of the high-voltage output indicates a discharge of the item previously tested.
The actual voltage present at the instrument terminals is displayed at all times, enabling the operator to monitor the discharge of an item that has just been subjected to a DC test.
The MPH1 and MPH2 comply with most existing UL requirements for di-electric withstand testing, including:
- UL544: Electric Medical and Dental Equipment
- UL982: Motor Operated Household Food Preparing Machines
- UL 1026: Electric Household Cooking and Serving Appliances
- UL1270: Radio Receivers , Audio Systems, and Accessories
Test Fail Mode Both instruments may be used in three test modes:
Breakdown only: This mode ignores the actual magnitude of the leakage current and look for a sharply rising waveform edge, characteristics of insulation breakdown.
Trip: The second mode will only trip the test voltage if the leakage current flowing exceeds a pre-selected calibrated maximum.
Breakdown/Trip: This mode is a combination of the two previous modes. The test voltage will be removed if either breakdown is detected or if the leakage current through the item under test exceeds a pre-set maximum.
A simple rotary switch selects the maximum permissible leakage current from one of seven calibrated settings.
Both instruments have visual indication of " High Voltage ON" , and visual and audible indication of a test failure.
To facilitate a fixed insulation, both instruments are provided with the facility to attach various safety devices:
- Safety interlocks may be attached to prevent the applications of high voltage unless safety barriers are in place.
- A socket is provided to allow the use of the optional remote On/Off switch thereby ensuring the operators hands are well removed from th danger area
- Terminals are provided for the connection of a warning beacon that illuminates whenever high voltage is present
- Terminals are provided for external signalling of a test failure
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Features |
- Conform to Ul testing
- Meets UL 120k ohm requirement for sensitivity
- Test voltage starts at zero crossing
- Transient free voltage
- Press to test or toggle
- Calibrated trip settings
- Three fail modes
- Breakdown only
- Excessive leakage only
- Breakdown or excessive leakage
- Optional remote on/off switch
- Provision for safety interlocks
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Additional Features |
- Remote switch: 5-pin DIN connector on rear of instrument allows connection of remote voltage ON/OFF switch (see optional accessories)
- Safety interlocks" Provision on rear of instrument for wiring safety interlocks
- Beacon: Provision on rear of instrument to wore in a "Voltage ON" warning beacon. Maximum current available 0.5A at 250 V ac.
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| | | SPECIFICATIONS
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Power Supply |
230 or 115V a.c. 50/60 Hz depending on model |
| Safety |
Meets the requirements of IEC 1010-1 (1995) and EN61010-1 (1995) |
| EMC |
Meets the requirements of EN5008-1, EN50082-1 (1992) and EN61326-1 (1998) |
| Temperature |
Operating: 32° to 104°F (0° to 40°C) |
| Storage: 32° to 140° F (-20 to 60° C) |
| Humidity |
Operating: 80% RH at 104° (40°C) |
| Dimensions |
4-3/4hx11 W x W 11-1/2 D in. (70 H x 257 W x 280 D mm) |
| Weight |
17.6 lb (8kg) |
SPECIFICATIONS
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Test Voltage |
| BD230215 |
0 to 3 kV AC continuously variable |
| BD230225 |
0 to 3kV AC |
| 0 to 4 kV DC continuously variable |
| Ripple Content on |
< 150 V AC peak to peak at 1 mA |
| DC range |
| Current trip settings |
0.3, 0.5, 1.0, 2.0, 3.5, 5.0, 10.0mA. Peak or DC |
| Current trip accuracy |
+5% of indicated value (+10% for 0.3mA setting) |
| Display |
| Voltage |
Analog Movement 2.36 in. (60 mm) scale length |
| Accuracy |
+2.5% of full- scale deflection |
| CAT NO. |
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MODEL |
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DEscRIPTION |
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AVAIL |
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PRICE |
| BD230215 |
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MHP-1 |
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AC HiPot |
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Yes |
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2,689,200 |
| Includes: Low return lead, 4-kV high-voltage probe and power cord |
| BD230225 |
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MHP-2 |
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AC/DC HiPot |
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Yes |
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3,337,200 |
| Includes: Low return lead, 4-kV high-voltage probe and power cord |
| BD121069 |
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EV6420-061 |
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OPTIONAL High-Voltage Gun Probe FOR MHP1 and MHP2 HiPots |
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Yes |
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324,000 |
| BD121070 |
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EV6220-641 |
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OPTIONAL Remote On/Off Switch FOR MHP1 and MHP2 HiPots |
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Yes |
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594,000 | | |
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