Sentry Hipot Tester AC/DC/IR – 19070


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 1MΩ to 50GΩ
  • 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


The Sentry 19070 series testers are compact, lightweight and low cost. Its compact size is easy to move around the production floor and the large LCD display makes viewing measurement results easy. These high value 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 capacitive 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 occurring 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)
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)

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 1249 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

One time registration required in order to download documents. Register or login to continue. 895.84 KB 381 downloads


19070 Panel Meter Application

One time registration required in order to download documents. Register or login to continue. 546 KB 430 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.
















    Contact Information

    Required fields marked with *

    Your Name *

    Company *

    Country *

    Email *

    Phone *

    State or Province *


    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:

    Check below


    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.


    Chroma Implements Immediate Delivery Program for Medical Device Manufacturers

    Chroma Systems Solutions is committed to the health and safety of our employees and communities as well as continuing to serve our customers in the Medical industry. We understand that keeping medical device production operational is critical in combating this pandemic.

    Chroma is implementing an IMMEDIATE DELIVERY PROGRAM that will allow medical device manufacturers who require hipot testers to receive them through an accelerated consignment process so you can continue your important work of battling the pandemic and providing the health care products that our country critically needs. Customers only need to call or email their requirements and we will do our best to expedite shipments with no additional paperwork. We only ask that Purchase Orders be submitted within 60 days from time of shipment or the equipment is returned to Chroma, no questions asked.

    Unprecedented times like these are a strong reminder that our products and services serve as essential resources for the health and well-being of our communities. Chroma appreciates your continued efforts and we are dedicated to help keep your production lines up and running.

    More Info

    Related Products