SPD Test Device

Highlights

For testing the sparkover voltage of surge arresters. The specimen is connected via the included test leads or special test adapters.
  • For routine tests of surge protective devices
  • Compact dimensions
  • Suitable for mains and battery operation
  • Low battery indicator
  • Test leads included in delivery
  • Shock-proof test adapter available as accessory

Description

The PM 20 SPD test device with integrated sparkover detection is used to test Yellow/Line and Red/Line surge arresters with integrated varistor, Zener diode or gas discharge tube. Both the sparkover performance between the connections of the arresters as well as the continuity can be tested. The results can be compared to the limit values specified in the instructions for use. In case of deviations, the arrester or protection module must be replaced. Test adapters with a corresponding support make it easier to test arresters of the BLITZDUCTOR XT and DEHNrapid LSA product family.

Detail 1

Indication of the measured sparkover voltage.

Detail 2

The sparkover performance of gas discharge tubes, varistors and Zener diodes can be tested.

Detail 3

Insulated test leads are included in delivery.

Detail 4

Can be directly connected to a test adapter for easy testing of DRL or BXT protection modules.

Application

Models

PM 20

PM 20

Combined device for testing the sparkover voltage of surge arresters (with gas discharge tubes / varistors / Zener diodes). Storage bag and measuring accessories included.

Specifications

Type
Part No.
Nominal voltage (d.c.) (UN)
Test parameter: Test voltage
Test parameter: Test current (reference voltage)
Measured value indication
Test output sockets
Testing period
Number of individual tests during battery operation
Accessories included in delivery
Dimensions of the storage bag
Weight
GTIN
PU
  • PM 20
  • 910 511
  • 8-12 V d.c.
  • max. 1250 V d.c.
  • 1 mA d.c., constant
  • alphanumeric, eight-digit LCD
  • safety pole terminals (4 mm), positive pole: red colour, negative pole: black colour
  • ≤ 1.5 sec.
  • typically 2000
  • 2 test leads (each 1 m long), 2 safety tapping test clips, 1 plug-in power supply unit (230 V a.c.), 1 storage bag
  • 300 x 110 x 110 mm
  • 1,32 kg
  • 4013364111424
  • 1 pc(s)
  • Specifications (PDF)
  • More
    • Further Pictures
      Further Information
      Product Specifications (Text)

      Back

      PM20 arrester test device
SPD Test Unit for surge arresters based on 
gas discharge tube/varistor/Zener diode technology
Allows for mains and battery supply
Low battery indication
Storage bag and accessories for measuring included
Nominal voltage:	8 – 12 V dc
Test parameters: 
Test voltage: max. 1200 V dc
Test current (reference voltage):    1 mA dc, constant
Dimension of storage bag:       300 x 110 x 110 mm


      delivery and installation.

      Brand: DEHN
      Type: PM 20
      Part No.: 910 511

      or equivalent.
      Installation Instructions
      Certificates
      CE_PM_20

Accessories

PA BXT Test Adapter

To be connected to PM 10 / PM 20. For inserting and testing protection modules.

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Specifications

Type
Part No.
For protection modules
Weight
GTIN
PU