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
Description
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.
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.
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.
Model Options
Sentry 19071 Hipot Tester (AC)
5kV AC Hipot, Ground Continuity Check
Sentry 19073 Hipot Tester (AC/DC/IR)
5kV AC Hipot, 6kV DC Hipot, 1kV DC Insulation Resistance, Ground Continuity Check
Accessories
This internally shorts line and neutral, and plugs into the HV output. If your DUT is terminated with a line cord you can plug into this box to make your testing easy.
Load Boxes are used to verify Hipots are passing and failing when they should be. Verification tests are commonly run at the beginning of each shift, day, or week depending on production requirements. This box is built with resistors of your choosing so don’t have to change your test paramaters.
Load Boxes are used to verify Hipots are performing properly. Verification tests are commonly run at the beginning of each shift, day, or week depending on production requirements. This box is built with resistors of your choosing so don’t have to change your test paramaters.
Allows you to remotely run your tests to keep operators away from the front panel output.
An alternative test lead option that may be desired based on your application.
Allows you to initiate a test remotely to keep operators away from the front panel output.
For putting a hipot into a rack cabinet. Ask us about our Hardware Integration.
Use to verify the ARC Detect feature on your hipot is functioning properly.
An alternative test lead option that may be desired based on your application.
Used to interconnect 19070 to our Model 19572 Ground Bond tester so testing can be run together.
Ground continuity cable that plugs into the ground continuity port on the back of your hipot. An alligator clip is on the other end to provide easy clamping to your Device Under Test. This comes standard with the purchase of a 19071 or 19073.
Standard 120V USA power cord that is terminated with 3 prongs. This will plug your Hipot into a standard USA wall outlet. This comes standard with the purchase of a 19071 or 19073.
Specifications
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 1550 downloadsUser 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 527 downloads...
19070 Panel Meter Application
One time registration required in order to download documents. Register or login to continue. 546 KB 450 downloadsThis application note describes testing a Digital Panel Meter. ...
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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