Power supply

The measuring systems fulfill the requirements of IEC 61010-1 only if power is supplied from a secondary circuit with limited energy acc. to IEC 61010‑1^3rd Ed., Section 9.4 or with limited power source acc. to IEC 60950‑1^{2n  Ed.}, Section 2.5 or from a Class 2 secondary circuit in accordance with UL1310. The corresoponding secitons of EN 61010‑1, EN 61010‑1, UL 61010‑1 and CAN/CSA‑C22.2 No. 61010‑1 can be used instead of IEC 61010‑1^3rd Ed., Section 9.4, and the corresponding sections of EN 60950‑1, EN 60950‑1, UL 60950‑1 and CAN/CSA‑C22.2 No. 60950‑1 can be used instead of IEC 60950‑1^2nd Ed., Section 2.5.