Guardian Hipot Tester AC/DC/IR/SCAN – 19050

Guardian 19050 Hipot Tester AC/DC/IR/SCAN

Key Features

  • Datasheet
  • AC/DC/IR 3 in 1 hipot tester
  • AC 5kV and DC 6kV output
  • 1kV insulation resistance test
  • Insulation resistance measurement: 1MΩ~10GΩ
  • 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

Hipot Tester Description

The Chroma Guardian 19050 series Hipot Tester is comprised of three models. The Guardian 19052 is capable of AC/DC/IR Hipot testing and insulation resistance (IR) measurements. The Guardian 19053 combines both AC and DC Hipot tests and IR measurements with 8HV scan channel capabilities. The Guardian 19054 combines both AC and DC Hipot tests and IR measurements with 4HV scan channel capabilities. Front panel operation, digital display, and user friendly controls allow test parameters and limits to be set easily without high voltage activation.

Open Short Check (OSC)

The O.S.C function is used to check whether the connection is open, or a short circuit, between the instrument and DUT (device under test) before the Electrical Safety Test is performed. If the connection is bad between the instrument and DUT, like bad leads or relay oxidation, the test may reult in a PASS determination. In some cases, the DUT has a short before testing. Testing continually leads to instrumentation damage due it suffering the high load current. Therefore, we check for the open and short circuit to ensure the test is effective and to protect the instruments.

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

Hipot Tester Circuit Open/Shorted


Ground Continuity Check

All of the 19050 series testers have a ground continuity check feature to determine the resistance between the ground blade of the power cord and any exposed metal on the product. This resistance should be less than 1Ω.


Ground Fault Interrupt (GFI)

A requirement for test environments indicates that test equipment be equipped with auto interrupt device. Chroma builds in a Ground Fault Interrupt (GFI) function for this purpose. When the current meter A1 and A2 detect a difference (i2-i1=iH) between the value i1 and actual i2 test current over high, this device can cut the power transiently for protection of the operator. It is not only compliant with the safety standard but also provides additional safeguards for test personnel.

Hipot Test Ground Fault Interupt

Model Description
Guardian 19052 Hipot Tester (AC/DC/IR)
Guardian 19053 Hipot Tester (AC/DC/IR/8CH SCAN)
Guardian 19054 Hipot Tester (AC/DC/IR/4CH SCAN)
A190512 Auto Control TR. Scan Box (3002B)
S15 Interconnect Cable Set [19070/19050 to 19572]
A190517 19″ Rack Mount Kit
10494 EST Softpanel Basic KIT
10541 Softpanel Kit
G13 Corded Product Adapter Hipot (115V)
A190508 GPIB Interface
A190702 40kV HV Test Probe
A190704 Start Switch
A190708 ARC Verification Fixture
A190344 HV Gun

User Manuals

Manuals - 19050 Series Hipot Tester AC/DC/IR/SCAN

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User Manuals for 19050 Series Hipot Tester AC/DC/IR/SCAN. Includes the 19052, 19053, and 19054. 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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    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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    Select required tests:
    AC HipotAC/DC HipotGround Bond (GB)Leakage Current (LC)Insulation Resistance (IR)Corona Discharge (CD)Impulse Winding Test (IWT)

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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.



    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.

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