--- $schema: "http://json-schema.org/draft-07/schema#" $id: "https://oimlsmart.org/schemas/R50.yaml" title: "OIML R50 (Continuous Totalising Automatic Weighing Instruments) Certificate Schema" description: | OIML R50 "Continuous totalising automatic weighing instruments (belt weighers)". Covers class 0.2, 0.5, 1 and 2 instruments per R50-1 §3.2.4. type: object required: [certificate, certified_type, characteristics, recommendation] properties: certificate: { $ref: "_core.yaml#/definitions/Certificate" } issuing_authority: { $ref: "_core.yaml#/definitions/IssuingAuthority" } applicants: { $ref: "_core.yaml#/definitions/PartyList" } manufacturers: { $ref: "_core.yaml#/definitions/PartyList" } certified_type: { $ref: "#/definitions/CertifiedType" } characteristics: { $ref: "#/definitions/Characteristics" } recommendation: type: object required: [id, edition, scheme] properties: id: { type: string, const: R50 } edition: { type: integer, enum: [2014] } amendment: { type: [string, integer, "null"] } scheme: { type: string, enum: [A, B] } accuracy_classes: type: array items: oneOf: - type: string - type: number - $ref: "#/definitions/AccuracyClass" test_reports: { $ref: "_core.yaml#/definitions/TestReportList" } revision_history: { $ref: "_core.yaml#/definitions/RevisionHistory" } model_family: { $ref: "_core.yaml#/definitions/ModelFamily" } components: type: array items: { $ref: "_core.yaml#/definitions/Component" } footnotes: { $ref: "_core.yaml#/definitions/FootnoteList" } matrix_tables: { $ref: "#/definitions/MatrixTableList" } d011_tests_applicable: description: Tests mandated by R50-2 type evaluation. type: array items: { $ref: "#/definitions/D011TestReference" } default: - { test_id: d011_t06_static_temperature } - { test_id: d011_t07_static_temperature } - { test_id: d011_t11_atmospheric_pressure } - { test_id: d011_t08_damp_heat_steady_state } - { test_id: d011_t09_damp_heat_cyclic } - { test_id: d011_t15_vibration_random } - { test_id: d011_t16_vibration_sinusoidal } - { test_id: d011_t17_mechanical_shock } - { test_id: d011_t20_ac_mains_voltage_variation } - { test_id: d011_t23_ac_mains_dips_interruptions } - { test_id: d011_t26_bursts_ac_dc_mains } - { test_id: d011_t27_surges_ac_dc_mains } - { test_id: d011_t33_rf_em_fields_general } - { test_id: d011_t35_electrostatic_discharges } definitions: AccuracyClass: description: OIML R50-1 §3.2.4 belt weigher accuracy class (referenced from §6 via R76). allOf: - $ref: "_core.yaml#/definitions/StructuredValue" - properties: value: type: [string, "null"] oneOf: - const: "0.2" description: Class 0.2 — highest precision belt weigher - const: "0.5" description: Class 0.5 — high precision - const: "1" description: Class 1 — medium precision - const: "2" description: Class 2 — lower precision - const: "≥0.2" description: Class threshold — instrument certified for classes 0.2 and lower indices - const: "N/A" description: Not applicable CertifiedType: type: object required: [category, type_designations] properties: category: { type: string } type_designations: type: array minItems: 1 items: { type: string } module_designation: { type: [string, "null"] } description: { type: [string, "null"] } Characteristics: type: object properties: type_level: type: object additionalProperties: { $ref: "_core.yaml#/definitions/StructuredValue" } properties: accuracy_class: { $ref: "#/definitions/AccuracyClass" } totalisation_scale_interval: { $ref: "_core.yaml#/definitions/StructuredValue" } totalisation_scale_interval_d: { $ref: "_core.yaml#/definitions/StructuredValue" } qmin_reference: { $ref: "_core.yaml#/definitions/StructuredValue" } sigma_min: { $ref: "_core.yaml#/definitions/StructuredValue" } minimum_totalised_load: { $ref: "_core.yaml#/definitions/StructuredValue" } minimum_totalized_load_sigmin: { $ref: "_core.yaml#/definitions/StructuredValue" } operating_speed: { $ref: "_core.yaml#/definitions/StructuredValue" } weigh_length: { $ref: "_core.yaml#/definitions/StructuredValue" } weigh_length_wl: { $ref: "_core.yaml#/definitions/StructuredValue" } belt_speed: { $ref: "_core.yaml#/definitions/StructuredValue" } belt_speed_v: { $ref: "_core.yaml#/definitions/StructuredValue" } belt_length: { $ref: "_core.yaml#/definitions/StructuredValue" } reduction_ratio: { $ref: "_core.yaml#/definitions/StructuredValue" } load_cells_excitation_voltage: { $ref: "_core.yaml#/definitions/StructuredValue" } minimum_load_cell_impedance: { $ref: "_core.yaml#/definitions/StructuredValue" } maximum_load_cell_impedance: { $ref: "_core.yaml#/definitions/StructuredValue" } minimum_input_voltage_per_verification_scale_interval: { $ref: "_core.yaml#/definitions/StructuredValue" } minimum_dead_load_voltage: { $ref: "_core.yaml#/definitions/StructuredValue" } measuring_range: { $ref: "_core.yaml#/definitions/StructuredValue" } load_cell_cable: { $ref: "_core.yaml#/definitions/StructuredValue" } maximum_pulse_frequency: { $ref: "_core.yaml#/definitions/StructuredValue" } power_supply_voltage: { $ref: "_core.yaml#/definitions/StructuredValue" } power_supply_frequency: { $ref: "_core.yaml#/definitions/StructuredValue" } power_supply_type: { $ref: "_core.yaml#/definitions/StructuredValue" } power_supply_dc: { $ref: "_core.yaml#/definitions/StructuredValue" } embedded_software_identification: { $ref: "_core.yaml#/definitions/SoftwareIdentification" } software_identification: { $ref: "_core.yaml#/definitions/SoftwareIdentification" } material: { $ref: "_core.yaml#/definitions/StructuredValue" } climatic_environment_condition: { $ref: "_core.yaml#/definitions/StructuredValue" } temperature_range: { $ref: "_modules/d011_environmental.yaml#/definitions/TemperatureRange" } humidity_class: { $ref: "_modules/d011_environmental.yaml#/definitions/ClimaticClass" } electromagnetic_environment_class: { $ref: "_modules/d011_environmental.yaml#/definitions/EMClass" } mechanical_environment_class: { $ref: "_modules/d011_environmental.yaml#/definitions/MechanicalClass" } model_level: type: array items: { $ref: "#/definitions/ModelLevelEntry" } config_level: type: array items: { $ref: "#/definitions/ConfigLevelEntry" } ModelLevelEntry: type: object required: [attribute, values] properties: attribute: { type: string } unit_symbol: { type: [string, "null"] } unit_id: { type: [string, "null"] } values: type: array items: type: object required: [model, value] properties: model: { type: string } value: { $ref: "_core.yaml#/definitions/ValueOrScalar" } footnote_markers: type: array items: { type: string } ConfigLevelEntry: type: object required: [attribute, axis, values] properties: attribute: { type: string } axis: { oneOf: [ { type: string }, { type: "null" } ] } unit_symbol: { type: [string, "null"] } unit_id: { type: [string, "null"] } values: type: array items: type: object required: [condition, value] properties: condition: { type: string } value: { $ref: "_core.yaml#/definitions/ValueOrScalar" } MatrixTableList: description: Multi-axis spec tables preserved from source (e.g. `Model Qmax/d/Scale` matrices). type: array items: type: object required: [name, columns, rows] properties: name: { type: string } description: { type: [string, "null"] } columns: type: array items: { type: string } rows: type: array items: type: object additionalProperties: true footnotes: type: array items: { type: string } D011TestReference: description: Reference to an OIML D 11:2013 performance test. type: object required: [test_id] properties: test_id: { type: string, pattern: '^d011_t\d{2}_' } test_level_index: { type: integer, minimum: 1, maximum: 5 } notes: { type: string }