Testing Specifications

High Voltage: All input and output terminals will withstand 1500 Vac RMS to chassis or instrument

ground for one minute with a leakage current not to exceed 25 mA, for all terminals to ground. Input

and output circuits are electrically isolated from each other, from other circuits, and from ground.

Surge Withstand Capability: All input and output circuits are protected against system transients.

Units pass all requirements of ANSI/IEEE C.37.90.1‑1989 defining surge withstand capability.

Radiated Electromagnetic Withstand Capability: All units are protected against electromagnetic

radiated interference from portable communications transceivers.

Control Accuracy Specification: All units comply with ANSI/IEEE C57.15‑1986 defining control

accuracy of operation.

Environmental

Temperature Range: Functionality is maintained from ‑40° to +85° C.

Humidity: Functionality is maintained under 95% relative humidity (non‑condensing).

Fungus Resistance: A conformal printed circuit board coating inhibits fungus growth.