Megger RCDT320 Residual Current Device Tester

Product Code: MEGRCDT320

Price

£444.00 ex. VAT £532.80 inc. VAT

In Stock

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Detailed Description

Key Features:

N Tests standard, DC, selective, and programmable RCDs
Ramp testing n Auto (Remote) testing
3 Phase safe n Enables testing on 110 V centre tapped supplies.
Tough rubber armoured case with built-in cover
Weatherproof to IP54
USB interface for downloading test result
Auto Sequence test
Backlight
Manufacturers Calibration Certification

*Important Calibration Information:
This instrument comes complete with the manufacturer’s calibration certificate. Please be aware that these certificates are generic and may also be time lapsed. If you would prefer a personalised full traceable calibration certificate applied to the equipment before dispatch, then please select this option from the drop-down menu above, an additional calibration charge will apply.

The RCDT330 additionally offers the facility to save test results to internal memory. Over 1000 result can be saved on site, and downloaded to a computer when convenient. Data is stored in non-volatile memory, being retained when the instrument is switched off or batteries are exhausted. A Job reference number can be selected for a range of results, allowing separate locations to be tested with the same tester and easily separated when downloaded. A memory bar graph acts as a ‘Fuel Gauge’ showing how much memory has been used Test results are downloaded to CSV (Comma Separated Variable) spreadsheets, and can be imported into Microsoft Excel®. If certificates or reports are required, the results can be downloaded directly into Megger Powersuite Professional with a range of features for creating professionally finished documentation for NICEIC, ECA BS and other standard formats.

Description:

Standard test ranges

The RCDT300 series can perform 1/2I, 1xI and 5xI tests on RCDs rated at 30 mA, 100 mA, 300 mA and 500 mA on general and selective (time delayed) RCDs. The RCDT320/ 330 can also test RCDs rated at 10 mA and 1000 mA. All units offer DC testing of RCD’s.

Test times for normal and Selective RCDs are:

Normal Selective

1/2I 2s 2s

I 300ms 2s

5I 40ms 150ms

5I tests are available on RCDs rated up to 100 mA.

Polarity

All RCD's can be tested at 0° or 180°

Selective RCDs

Selective breakers have a time delay in tripping. When selected, trip test times are extended and a 30s delay is allowed between the measurement of the fault voltage and the application of the test current.

Touch voltage

Touch Voltage is measured at the start of the RCD test. If enabled it is displayed on the analogue arc on completion of testing.

Touch voltage inhibit is selectable from 25 V or 50 V.

Tough

Designed to take the bashing that testers receive on site, the Megger RCDT testers are rubber armoured.
The rigid display cover folds right out of the way during testing and locks down to protect the display when it is finished.

Simple to use

No buried functions mean it is obvious how to use the Megger RCDT.
Colour coded ranges help test range selection, reducing test times and fault location.
A user guide in the lid provides all the basic information. Hands free use
It hangs comfortably around the neck for hands-free use because the instrument is carefully balanced.

DC sensitive RCDs

DC sensitive RCDs can be tested at 1/2I, 1xI and 5xI.

Ramp Testing

(RCDT320/330) n To measure the trip current of an RCD. Current level is slowly increased from 1/2I to 1I (+10%). When the RCD trips the trip current is displayed and held on the screen.
Very useful diagnosing nuisance tripping of RCDs.

Megger RCD300 Series Selection Guide

RCD300 Series Selection Guide

Megger RCDT300 Series: RCDT310 RCDT320 RCDT330
RCD Test Ranges (to EN61557-6)
Supply Voltage	RCDT310: 100V to 280V (45Hz to 65Hz) RCDT320: 50V to 280V (45Hz to 65Hz) RCDT330: 50V to 280V (45Hz to 65Hz) Minimum voltage 71V for 300mA RCDs, 100V for 500mA RCDs and 205V for 1000mA RCDs
Test Current Accuracy
No Trip Test	(1/2I): -8 to -2%
Trip Test	(I, 5I): +2% to +8%
Trip Time	±1% ± 1ms
Voltage Measurement
AC Range	0 to 300V (25 to 450Hz)
Accuracy	±2% ± 2 digits
Frequency Measurements (RCDT320/330 Only)
Range	25 to 450Hz
Accuracy	25 to 199.9Hz ± 0.1Hz 200Hz to 450Hz ± 1Hz
Fault (Touch) Voltage
Displayed Range	0 to 50V
Error	+5%/+15% ± 0.5V
Programmable RCD Step Increments
10mA to 50mA	1mA steps
50mA to 500mA	5mA steps
500mA to 1000mA	10mA steps
Test Result Storage (1000 Results) - RCDT330 Only
Job Number	256 locations
Distribution Board Number	99 locations
Circuits	99 locations
Phases	P1, P2, P3
Temperature and Humidity
Operating Range	-5 to 40°C
Operating Humidity	93% RH at +40°C max
Storage Range	-25 to 70°C
Maximum Altitude	2000m
Environmental Protection	IP54
Safety
Rating	IEC 61010-1 CAT III 300V phase to earth
Power Supply
Batteries	8 x 1.5V cells IEC LR6 type (AA alkaline)
Rechargeable	8 x 1.2V NiCd or NiMH cells
Battery Life	2000 consecutive tests
General Specs
Weight	980g
Dimensions	203 x 148 x 78mm
E.M.C	In accordance with IEC61326-1