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Sentry Hipot Tester AC/DC/IR – 19070

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Key Features

  • Datasheet
  • AC/DC/IR 3 in 1 hipot tester
  • AC 5kV and DC 6kV output
  • 1kV insulation resistance test
  • Insulation resistance measurement from 1M to 50
  • Ground continuity check
  • Open Short Check(OSC) function
  • GFI shutdown the instrument when imbalance current > 0.5mA
  • Flashover (ARC) detection
  • Quick discharge of DUT in IR and DC test
  • Pause mode
  • Large LCD display (240 x 64 dots matrix)
  • UL and TUV approved (*see spec)
  • CE mark
  • Programmable ramp/fall and test time
  • Programmable high/low limit
  • Save/Recall program test function
  • Remote control and interface support
  • 2-Year factory warranty

Description

Chroma’s Sentry 19070 series testers are the smallest Hipot Testers currently available in the world. Its super mini size is easy to carry and the large LCD display makes viewing measurement results easy. These sophisticated Hipot Testers are most applicable to safety testing electronic components.

The Sentry 19070 Hipot Tester series provides 2 models to choose from. The Sentry 19071 for AC Hipot testing; and the Sentry 19073, which combines both AC and DC Hipot with insulation resistance (IR) measurements into a single compact unit.

Open Short Check (OSC)

The O.S.C function is used to check whether the connection is an open connection or that a short circuit exists between an instrument and DUT (equipment under test) before the Electrical Safety Test. If there is a bad connection between the instrument and DUT, for instance a bad lead or relay oxidation, the test will also PASS. In some cases, the DUT has a short before testing. In this case, testing can lead to a broken test instrument due to the high load current. Therefore, our test devices check for open and short circuit conditions to ensure effective testing and protect instruments.

Generally, DUT have capacitive load (Cx) from tens to thousands of pF. If there is an open connection, a capacitance will appear and total capacitive load will be lower than normal conditions. If the DUT is shorting, total capacitive load is higher than that in normal conditions. Therefore, we can measure the value of capactive load to check whether the contact is good or not.

Hipot Tester Circuit Open/Shorted

 

Ground Fault Interrupt (GFI)

Test environments often require that test equipment be equipped with an auto interrupt device. For this reason, Chroma provides a Ground Fault Interrupt (GFI) function. When the current meter A1 and A2 detect a difference (i2-i1=iH) between the value i1 and the actual i2 test current over high, the device can cut power transiently to protect human body safety. It is not only compliant with safety standards but also provides additional safeguards for test personnel.

Hipot Tester Ground Fault Interupt

 

Quick Discharge

In DC hipot and IR test the device under test is discharged back through the HV transformer. This technique results in a rapid and safe discharge.

 

Flashover (ARC) Detection

Fast transients in Voltage or Current occuring while Hi-Pot testing is called Electrical Flashover. Normally, in AC line frequency (50Hz/60Hz) or DC Hi-Pot testing, the leakage current is the same as 50Hz/60Hz or DC (charge current is excepted). As shown in Figure 1, leakage current varies smoothly.

On the other hand, electrical discharge occurring because of poor insulation material, electrode gap or surface clearance etc., fast transients in leakage current appear as shown in Figure 2. This is a phenomenon of poor withstanding. Most Electrical Safety regulations mention the necessity of a Withstand Strength Test. Nevertheless, general Hi-Pot testers only detect the RMS value of leakage current without the capability to detect Flashover. Therefore, the FLASHOVER detection function included with our Hi-Pot tester is necessary.

Hipot Tester Normal Leakage Current Hipot Tester Flashover Leakage Current

Model Description
Sentry 19071 Hipot Tester (AC)
Sentry 19073 Hipot Tester (AC/DC/IR)
Accessories
A190701 Remote Control Box
A190702 40kV Test Probe
A190704 Start Switch
A190706 19′ Rack Mount Kit for Model 19070 series
A190708 ARC Verification Fixture
A190344 HV Gun
S15 Interconnect Cable Set [19070 to 19572]
G13 Corded Product Adapter Hipot (115V)

Specifications
Datasheet
User Manuals

Manuals - 19070 Series Hipot Tester AC/DC/IR

One time registration required in order to download documents. Register or login to continue. 3.54 MB 438 downloads

User Manuals for 19070 Series Sentry Hipot Tester AC/DC/IR. Includes the 19071 and 19073. Available documents are: Quick Start Guide Hardware User Manual All files in PDF format. ...

Application Notes

Open Short Check Function of Chroma Safety Analyzers

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...

19070 Panel Meter Application

One time registration required in order to download documents. Register or login to continue. 546 KB 361 downloads

This application note describes testing a Digital Panel Meter. ...

How To Buy

Three efficient ways to get pricing and/or more information regarding this instrument:

Electronically: Please complete this form and one of our sales engineers will respond same day or next business day if after hours. Requests from this form are quoted directly from Chroma.

By phone: Call us at 949-600-6400, let the operator know where you are located, and you’ll be routed to your regional sales engineer.

By chat: Feel free to use the Chat line located at the bottom right of this page. The chat operator will take your information and route it to your regional sales engineer.

 

Want a quote for multiple instrument types? If you would like a quote for multiple instrument types, please use this form.

 

Lead time

Most of our instruments are inventoried and ready to ship. If we are currently out of stock – and due to demand we can be - lead times are typically 4-8 weeks depending on the instrument’s power rating.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Requirements

Select required tests:
AC HipotAC/DC HipotGround Bond (GB)Leakage Current (LC)Insulation Resistance (IR)Corona Discharge (CD)Impulse Winding Test (IWT)

Additional Requirements or Comments:

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Electrical Safety No Risk Guarantee

We like happy customers, so if you are not completely satisfied with your purchase, send it back within 45 days and we will refund the cost of the instrument.

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