User manual

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14. PAT4 compatibility
The PAT400’s have additional test capability that does not exist on previous PAT testers. To maintain
compatibility when transferring data between the PAT 4 and the PAT400s, the following should be
considered:
Test options
The PAT400s include additional tests not available on the PAT4. These include:
250V Insulation testing
RCD testing
Touch leakage (available on the PAT4E)
Substitute leakage (available on the PAT4E)
Other differences to be considered:
PAT400 PAT4
Continuity test range 19.99Ω 9.99Ω
Continuity test resolution 0.01Ω 0.001Ω
Parallel earth detection Yes No
Insulation test range 99.99MΩ 50MΩ
Differential Leakage testing 19.99mA 15.0mA
Flash test range 3.0mA 3.5mA
In addition, the PAT400 includes additional test limits that are not supported in the PAT4.
Test groups:
Test groups that contain tests not available on the PAT4 should be avoided.
The PAT4 only allows 3 characters in the name of a test group. Use test groups that conform to the PAT4
format.
Storage differences
PAT400
PAT4
Test groups 100 50
Clients 100 10
Locations 2 000 20
Assets 10 000 1 000
Test records 10 000 1 000
Memory capacity
The PAT400s have 10x the storage capability of the PAT4, storing up to 10 000 test records compared to
1 000 test records.
Asset ID
The PAT400 can use the same Asset ID across multiple clients. For example:
Client 1 Asset 0001, 0002, 0003
Client 2 Asset 0001, 0002, 0003
However the same Asset ID cannot be used in different locations under one client.
To transfer data from the PAT4 to the PAT400, the transfer must be made using Megger PowerSuite
Professional.