4 21
When the battery is nearly drained, records will be lost or only maintained for a
short time and if this occurs the battery must be replaced. This battery is not user
replaceable and should only be replaced by qualified personnel.
To ensure maximum protection of instrument records they should be transferred
to a permanent copy on a daily basis.
Do not use the PAT as the primary store for your records.
WARNING: This product contains a lithium battery which must not be cut open,
incinerated, exposed to temperatures above +60ºC or recharged. “Dispose of in
accordance with local regulations”.
1. INTRODUCTION
Fig. 1
1.1 Description
The MicroPAT+ microprocessor controlled Appliance Tester (Fig. 1) is housed in
a robust injection moulded case with a hinged lid. The base of the case contains
the complete power and electronics circuitry under the control panel. A sixteen
key tactile membrane switch pad with added audio feedback operates the tester.
Test leads and a comprehensive instruction manual are stored in the lid behind a
shelf which carries basic operating instructions.
The MicroPAT+ can scan Bar Code labels of the Appliance I.D. and Test
Parameters using an optional bar code reader. The Bar Code symbology used is
code 3 of 9 (USD-3). The bar code reader is connected to the serial interface
when required.
Tests carried out on both Class I and Class II electrical appliances are based on
the recommendations of the Electricity at Work Act, The Health & Safety
Executive and The Electronic & Business Equipment Association.
NOTE:
Class I - Earthed
Class II - Unearthed (double insulated), usually denoted by the symbol .
The MicroPAT+ can accept either 230/240V or 110V (55-0-55) 50/60Hz supplies
(via a special lead adaptor). A 240V and a 110V socket on the control panel
enables appliances of either voltage to be tested with the relevant mains supply.
Six tests can be performed on an appliance whose mains switch should be ON.
Class Insulation Test Run Flash
Earth
Test
Test Codes
0.1Ω 0.2Ω 0.3Ω 0.4Ω 0.5Ω
I
Limit 1.0MΩ
Skip Skip 25A 01 02 03 04 05
I
Limit 1.0MΩ
Skip Test 25A 06 07 08 09 10
I
Limit 1.0MΩ
Test Skip 25A 11 12 13 14 15
I
Limit 1.0MΩ
Test Test 25A 16 17 18 19 20
I
Limit 1.0MΩ
Skip Skip 100mA 21 22 23 24 25
I
Limit 1.0MΩ
Skip Test 100mA 26 27 28 29 30
I
Limit 1.0MΩ
Test Skip 100mA 31 32 33 34 35
I
Limit 1.0MΩ
Test Test 100mA 36 37 38 39 40
II
Limit 2.0MΩ
Skip Skip Skip 81
II
Limit 2.0MΩ
Skip Test Skip 82
II
Limit 2.0MΩ
Test Skip Skip 83
II
Limit 2.0MΩ
Test Test Skip 84
Limit
NOTE: Older test codes for previous versions of firmware will still work correctly. There is no
distinction between ‘As New’ and ‘In Service’ so insulation pass limits will be Class I at 1.0MΩ
and Class II at 2.0MΩ for all codes.
3.7 Table of Codes for Test Parameters For Firmware Versions 6.1 Onwards
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