![C31e Brochure.](https://static.wixstatic.com/media/ca430e_d3b69307b0b8440182ef43ad3c6721b6~mv2.png/v1/fill/w_290,h_218,fp_0.50_0.50,q_95,enc_auto/ca430e_d3b69307b0b8440182ef43ad3c6721b6~mv2.webp)
![](https://static.wixstatic.com/media/ca430e_5dc2eb96e1184795a438384dea3373e5~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/ca430e_5dc2eb96e1184795a438384dea3373e5~mv2.webp)
![Testing & Calibration of LLI for 25kV OLE (NRA23-01)](https://static.wixstatic.com/media/ca430e_5dc2eb96e1184795a438384dea3373e5~mv2.jpg/v1/fill/w_290,h_218,fp_0.50_0.50,q_90,enc_auto/ca430e_5dc2eb96e1184795a438384dea3373e5~mv2.webp)
keithhudson5
Jan 17, 20230 min read
8 views0 comments
![](https://static.wixstatic.com/media/ca430e_20040876384442e28dcd341066239ee9f000.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/ca430e_20040876384442e28dcd341066239ee9f000.webp)
![C31 Start-up OOC LED Sequence](https://static.wixstatic.com/media/ca430e_20040876384442e28dcd341066239ee9f000.jpg/v1/fill/w_290,h_218,fp_0.50_0.50,q_90,enc_auto/ca430e_20040876384442e28dcd341066239ee9f000.webp)
keithhudson5
Jan 13, 20231 min read
C31 Start-up OOC LED Sequence
If after pressing the power button on your C31 LLT, you notice the start-up sequence only flashing the red LEDs and there is no meter...
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![](https://static.wixstatic.com/media/ca430e_412309003c3241d0a7abfbd314216792f000.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/ca430e_412309003c3241d0a7abfbd314216792f000.webp)
![C31 Start-up Normal LED Sequence](https://static.wixstatic.com/media/ca430e_412309003c3241d0a7abfbd314216792f000.jpg/v1/fill/w_290,h_218,fp_0.50_0.50,q_90,enc_auto/ca430e_412309003c3241d0a7abfbd314216792f000.webp)
keithhudson5
Jan 13, 20231 min read
C31 Start-up Normal LED Sequence
When the power button is pressed the LEDs and meter self-test sequence will operate, as illustrated in the following video. The Tester...
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![](https://static.wixstatic.com/media/ca430e_097ec19a96444f069312a96297484a17f000.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/ca430e_097ec19a96444f069312a96297484a17f000.webp)
![C31 Start-up Battery Low LED Sequence](https://static.wixstatic.com/media/ca430e_097ec19a96444f069312a96297484a17f000.jpg/v1/fill/w_290,h_218,fp_0.50_0.50,q_90,enc_auto/ca430e_097ec19a96444f069312a96297484a17f000.webp)
keithhudson5
Jan 13, 20231 min read
C31 Start-up Battery Low LED Sequence
If after pressing the power button on your C31 LLT, you notice a different sequence of LEDs, then it may need the battery charging. The...
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![](https://static.wixstatic.com/media/ca430e_22c4c78ce26843c7acad52ec6769812e~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/ca430e_22c4c78ce26843c7acad52ec6769812e~mv2.webp)
![Test Before Touch for OLE (NRA 22-03)](https://static.wixstatic.com/media/ca430e_22c4c78ce26843c7acad52ec6769812e~mv2.jpg/v1/fill/w_290,h_218,fp_0.50_0.50,q_90,enc_auto/ca430e_22c4c78ce26843c7acad52ec6769812e~mv2.webp)
![](https://static.wixstatic.com/media/ca430e_54de661c08c7492998de531306c174b9~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/ca430e_54de661c08c7492998de531306c174b9~mv2.webp)
![Withdrawal of HVD03/2D LLI (NRA20-10)](https://static.wixstatic.com/media/ca430e_54de661c08c7492998de531306c174b9~mv2.jpg/v1/fill/w_290,h_218,fp_0.50_0.50,q_90,enc_auto/ca430e_54de661c08c7492998de531306c174b9~mv2.webp)
![](https://static.wixstatic.com/media/ca430e_db8b25c3b5c4445684c6e550c928154c~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/ca430e_db8b25c3b5c4445684c6e550c928154c~mv2.webp)
![Cotec C31 LLI/LLT (NRA20-09)](https://static.wixstatic.com/media/ca430e_db8b25c3b5c4445684c6e550c928154c~mv2.jpg/v1/fill/w_290,h_218,fp_0.50_0.50,q_90,enc_auto/ca430e_db8b25c3b5c4445684c6e550c928154c~mv2.webp)
![](https://static.wixstatic.com/media/ca430e_c51df88d31284414bcad5efcc2e96cc4~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/ca430e_c51df88d31284414bcad5efcc2e96cc4~mv2.webp)
![HVD03/2D LLI (NRA20-05)](https://static.wixstatic.com/media/ca430e_c51df88d31284414bcad5efcc2e96cc4~mv2.jpg/v1/fill/w_290,h_218,fp_0.50_0.50,q_90,enc_auto/ca430e_c51df88d31284414bcad5efcc2e96cc4~mv2.webp)
![](https://static.wixstatic.com/media/ca430e_dd8f138b6d4f4d8dba3ddf649c3b0581~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/ca430e_dd8f138b6d4f4d8dba3ddf649c3b0581~mv2.webp)
![Correct Use of HVD03/2D LLI (NRA 18/14)](https://static.wixstatic.com/media/ca430e_dd8f138b6d4f4d8dba3ddf649c3b0581~mv2.jpg/v1/fill/w_290,h_218,fp_0.50_0.50,q_90,enc_auto/ca430e_dd8f138b6d4f4d8dba3ddf649c3b0581~mv2.webp)
![](https://static.wixstatic.com/media/ca430e_77d8d4d18a73452b9b5e6b7b14ecf24a~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/ca430e_77d8d4d18a73452b9b5e6b7b14ecf24a~mv2.webp)
![Test Before Touch on 25kV OLE (NRA 18/12)](https://static.wixstatic.com/media/ca430e_77d8d4d18a73452b9b5e6b7b14ecf24a~mv2.jpg/v1/fill/w_290,h_218,fp_0.50_0.50,q_90,enc_auto/ca430e_77d8d4d18a73452b9b5e6b7b14ecf24a~mv2.webp)
![](https://static.wixstatic.com/media/ca430e_c0f4737a018f4d8d9fbdfad39ddc5937~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/ca430e_c0f4737a018f4d8d9fbdfad39ddc5937~mv2.webp)
![C31 Approved](https://static.wixstatic.com/media/ca430e_c0f4737a018f4d8d9fbdfad39ddc5937~mv2.jpg/v1/fill/w_290,h_218,fp_0.50_0.50,q_90,enc_auto/ca430e_c0f4737a018f4d8d9fbdfad39ddc5937~mv2.webp)
keithhudson5
Nov 29, 20021 min read
C31 Approved
The Cotec C31 25kV Live Line Tester has been approved for use by Network Rail.
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