Test Procedure; Protection Against Contact - Dehn PM 20 Bedienungsanleitung

7.2

Test procedure

7.2.1 The PM 20 tester may only be switched on as soon as the protective device to be tested is contac-
ted according to the specifications in the evaluation table (pin designations).
2.2 If the Test button is briefly pressed, the measurement is started. The measurement result is auto-
matically stored in the display and the test voltage is switched off. The results of all measurements
for a protective module have to be ≥ the lower limit value (LLV [V]) and ≤ the upper limit
value (ULV [V]) (see relevant evaluation table, pages 26 to 34).
2.3 Measurement is carried out considering "test procedure/commissioning"(see page 37).
7.3

Protection against contact

For safety reasons, the PM 20 tester has to be switched off before connecting/removing a device
under test! The PM 20 tester also has to be switched off when reconnecting a protective device to
be tested!
Evaluation table for...
DEHNguard
Type Part No.
DG 275 900 600
DG 600 900 601
DG 385 900 602
DG 150 900 603
DG 75 900 604
DG 320 900 605
DG 440 900 607
DG 335 900 609
DG 275 FM 900 620
DG 600 FM 900 621
DG 385 FM 900 622
DG 150 FM 900 623
DG 75 FM 900 624
DG 320 FM 900 625
DG 440 FM 900 627
DG 335 FM 900 665
DG PV 500 SCP 950 500
DG PV 500 SCP FM 950 505
DG PV 700 SCP 950 501
DG PV 700 SCP FM 950 506
Note: The SPD has to be removed for testing (measuring)!
Tolerance range
LLV ULV
in [V] in [V]
386 474
869 1063
557 683
215 265
107 133
458 562
643 787
458 562
386 474
869 1063
557 683
215 265
107 133
458 562
643 787
458 562
643 787
643 787
869 1063
869 1063
DEHNguard T
protection modules
Type Part No.
T 275 900 670
T 600 900 671
T 320 900 672
T 150 900 673
T75 900 674
T 440 900 675
T 385 900 679
T 300 900 868
T G 385 900 869
T 335 900 871
Note: The module has to be removed for testing (mea-
suring)!
Tolerance range
LLV ULV
in [V] in [V]
386 474
869 1063
458 562
215 265
107 133
643 781
557 683
458 562
557 683
458 562
27