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EN-9

5-4 Trip Test (x1) ( x 1 0, only button 4 illuminated )

a). Select the

1 test tripping current.

b). Press the test button. The RCD should trip and the

tripping time will be displayed on the instrument LCD in
mS. While the test is being conducted the display will
indicate “ms”.

c). Reset the breaker and push the phase angle switch.

Press the “Press to Test” button and the breaker should
trip.

d). Reset the breaker and push the phase angle switch

again. Press the “Press to Test” button the breaker
should trip.

e). The readings obtained in 5-4-d and 5-4-c should both

be within the trip time specified for the breaker at its
rated tripping current.

f). If the breaker does not trip there is a fault.

5-5 Fast Trip Test ( x5 , both buttons 3 and 4

illuminated )

a). This is a special test required for a circuit breaker that is

installed to reduce the risk associated with direct contact
for breakers rated up to 30 mA.

b). Set the test tripping current function switch to the x 5

position.

c). Set the RCD rated tripping current switch to 30 mA.

d). Set the phase angle switch to the 0 position.

Содержание IRT 1900

Страница 1: ...Instruction Manual IRT 1900 Digital RCD Tester FR EN IT DE ES TEST 0 180 X1 2 X1 X5...

Страница 2: ...f Parts and Positions 4 4 2 LCD Display 5 4 3 Connections For RCD Testing 6 V OPERATING INSTRUCTIONS 6 5 1 Warning initial checks to be carried out before any testing 6 5 2 Preparation 7 5 3 Testing 8...

Страница 3: ...tions rated at 230V AC 10 Under No circumstances must it be connected to higher voltage or phase to phase Never open the instrument case There are no user serviceable parts inside If the unit does not...

Страница 4: ...Resilient case protects against everyday knocks 0 and 180 degree phase angle switch permits quick tests and consistent readings III SPECIFICATION Test current range 10 20 30 100 300 500 mA Test curren...

Страница 5: ...IEC Test Lead External Earth Probe Environmental Conditions The product is designed for indoor use and up to a maximum altitude of 2000m Installation Category 300V CAT III single phase 230V Pollution...

Страница 6: ...roceed test button 3 Phase angle select button 4 x 1 2 x 1 x 5 test current factor select button 5 x 1 2 x 1 x 5 test current factor select button 6 Trip current settings 7 Wiring indication 8 Storage...

Страница 7: ...ion 3 x 1 2 test current factor indication 4 x 1 test current factor indication 5 x 5 test current factor indication 6 0 180 phase angle indication 7 180 360 angle indication 8 Analog indication 9 Dis...

Страница 8: ...0 100 P N V OPERATING INSTRUCTIONS To ensure safe and proper use of this instrument the following instruction must be followed 5 1 Warning initial checks to be carried out before any testing a Always...

Страница 9: ...rectified before proceeding c If other loads are connected to the test circuit these may cause erroneous readings To make the most accurate readings loads on the circuit should be disconnected d Use o...

Страница 10: ...nctioning correctly and OL will be displayed d While the test is being conducted the units displayed will be ms for milliseconds e If the Press to Test button is released the result will be displayed...

Страница 11: ...tch again Press the Press to Test button the breaker should trip e The readings obtained in 5 4 d and 5 4 c should both be within the trip time specified for the breaker at its rated tripping current...

Страница 12: ...tch to the 180 position and press the Test button g The trip times of the last two measurements should both be less than 40 ms If the tripping times are greater than 40 ms the RCD may be faulty and mu...