GB/T 19705-2017Signals and interfaces for hydrometry instruments (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This standard replaces GB/T 19705-2005 "hydrological instrumentation signals and interfaces," compared with GB/T 19705-2005, in addition to editorial repair Change, the main technical content changes are as follows.

--- Modify the normative references;

--- Combined "non-smart sensor" and "smart sensor" as "sensor";

--- Increased rotor-type flow meter (see 5.2.1), tipping bucket rain gauge (see 5.2.2), float level gauge (see 5.2.3), telemetry evaporation (See 5.2.4), interface and signal requirements of hydrographic cable test equipment (see 5.2.5);

--- Added some other sensor interface (see 5.2.6);

--- Increased sensor output signal related content (see 5.2.9,5.2.10);

--- Added "frequency interface" "network interface" "optical interface" (see 5.3.1.1);

--- Added "digital transmission equipment can have a number of relay output interface" (see 5.3.2.4);

--- In the "I/O interface connector and pin definition" (see 5.4) to add a plug-in and pin definition table.

1 Scope

This standard specifies the hydrological instruments and sensors in the display, recording or data transmission equipment and hydrological instruments and other automation systems Preparation of the signal and interface between the definition, classification, technical requirements and test methods.

This standard applies to hydrological instruments in the sensor, display and recording equipment, data transmission equipment and automation system equipment.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 13983 instrumentation basic terminology

GB/T 18522.2 General principles of hydrological instruments - Part 2 - Reference operating conditions

Hydrological equipment terminology and symbols

GB/T 50095 basic hydrological terminology and symbols

IEEE 1394 high-performance serial bus standard (Standard for a high performance serial bus)

3 Terms and definitions

GB/T 13983, GB/T 19677, GB/T 50095 and defined by the following terms and definitions apply to this document.

4 Categories