--- $schema: "http://json-schema.org/draft-07/schema#" $id: "https://oimlsmart.org/schemas/R51.yaml" title: "OIML R51 (Automatic Catchweighing Instruments) Certificate Schema" 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 description: | Recommendation identifier. R51 certs normally carry `R51`; the form `R51-1` (referring to part 1 of the recommendation) also appears in legacy data and is tolerated. enum: [R51, R51-1] edition: { type: integer, const: 2006 } amendment: { type: [integer, string, "null"] } scheme: { type: string, enum: [A, B] } accuracy_classes: type: array description: | Canonical R51 accuracy-class tokens. Per TODO.review/r51-architecture-analysis.md §2.9 + G5, this is the single source of truth for accuracy class — type_level.accuracy_class is a deprecated duplicate and should be empty. Each token is either a bare string (canonical form emitted by the GLM extractor) or a StructuredValue-wrapped object (normalized form). 3 of 100 certs currently emit an empty list (extraction failures); the schema accepts both populated and empty arrays to allow those certs to be flagged downstream rather than rejected outright. items: { $ref: "#/definitions/AccuracyClassToken" } 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" } d011_tests_applicable: description: | Tests mandated by R51-2 (Type evaluation report) §3.x and OIML D 11:2013. Catchweighers are typically electronic instruments operating in industrial environments; the default set mirrors the climatic + EM disturbance suite applied at type evaluation. Mechanical vibration tests (t15/t16) apply to belt-driven / motion-mode catchweighers. type: array items: { $ref: "#/definitions/D011TestReference" } default: - { test_id: d011_t06_static_temperature } - { test_id: d011_t07_static_temperature } - { test_id: d011_t08_damp_heat_steady_state } - { test_id: d011_t09_damp_heat_cyclic } - { test_id: d011_t11_atmospheric_pressure } - { test_id: d011_t15_vibration_random } - { test_id: d011_t16_vibration_sinusoidal } - { test_id: d011_t17_mechanical_shock } - { test_id: d011_t18_dc_mains_voltage_variation } - { test_id: d011_t20_ac_mains_voltage_variation } - { test_id: d011_t22_dc_mains_dips_interruptions } - { 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_t28_bursts_signal_data_control } - { test_id: d011_t29_surges_signal_data_control } - { test_id: d011_t33_rf_em_fields_general } - { test_id: d011_t35_electrostatic_discharges } definitions: AccuracyClassToken: description: | Single R51 accuracy-class token. Accepts either: * a bare string (canonical — what the GLM extractor emits), or * a StructuredValue object whose `value` is the canonical token (normalized form for downstream consumers). Tokens use the Unicode comparison operators as emitted by the source PDF OCR (e.g. "x≥2", "x<1"). Decimal-comma ("0,5") and whitespace ("Y (b)", "x ≥ 2") variants also appear and are tolerated pending normalization. oneOf: - type: string description: | Canonical bare-string form. The Unicode "≥" (U+2265) reflects OIML R51 standard typography; ASCII ">=" is a display variant. oneOf: - const: XII description: X family — XII (lowest precision, x<1 interval multiplier) - const: XIII description: X family — XIII (default band, x=1) - const: XIIII description: X family — XIIII (higher precision) - const: "XII(x<1)" description: X family — XII, multiplier x<1 - const: "XIII(1)" description: X family — XIII, multiplier 1 (single-scale static) - const: "XIII(x)" description: X family — XIII, general multiplier x - const: "XIII(x≥2)" description: X family — XIII, multiplier x>=2 (multi-interval) - const: "XIIII(x≥2)" description: X family — XIIII, multiplier x>=2 - const: "Y(a)" description: Y family — Y(a), dynamic-weighing band a - const: "Y(b)" description: Y family — Y(b), dynamic-weighing band b - const: "Y(II)" description: Y family — Y(II), lower-precision dynamic band - const: IIII description: Legacy R76-style non-automatic class — tolerated on old certs, migrate to XIIII - const: III description: Legacy R76-style non-automatic class — tolerated on old certs, migrate to XIII - description: | Non-canonical extraction-source variants. Decimal-comma forms come from European OIML standard typography; whitespace variants come from inconsistent OCR of parenthesized tokens. These are tolerated for round-trip validation of pre-normalization data; the canonical forms above are preferred. enum: - "XII(0,5)" - "XIII(0,5)" - "XIII(x ≥ 2)" - "XIIII(x ≥ 2)" - "Y (b)" - $ref: "#/definitions/AccuracyClass" AccuracyClass: description: | OIML R51-1:2006 §2.2.3 catchweigher accuracy class, wrapped in a StructuredValue. R51 classes are X(i) and Y(i) variants where the parenthesized qualifier distinguishes accuracy bands within the X family (static weighing) and the Y family (lower precision). The Roman numeral prefix denotes the precision grade; the parenthesized qualifier refines it (e.g. `(1)`, `(x)`, `(x>=2)`, `(a)`, `(b)`, `(II)`, `(0.5)`). Observed tokens in 100 certs include XII(i), XIII(1), XIII(x), XIII(x>=2), XIIII(x>=2), Y(a), Y(b), Y(II). Decimal-comma and whitespace variants (e.g. `XIII(0,5)`, `Y (b)`, `XIII(x >= 2)`) appear in source PDFs and SHOULD be normalized to canonical form at extraction time. allOf: - $ref: "_core.yaml#/definitions/StructuredValue" - properties: value: type: string description: Canonical R51 accuracy-class token. oneOf: - const: XII description: X family — XII (lowest precision, x<1 interval multiplier) - const: XIII description: X family — XIII (default band, x=1) - const: XIIII description: X family — XIIII (higher precision) - const: "XII(0.5)" description: X family — XII, interval multiplier 0.5 - const: "XII(x<1)" description: X family — XII, multiplier x<1 - const: "XIII(1)" description: X family — XIII, multiplier 1 (single-scale static) - const: "XIII(x)" description: X family — XIII, general multiplier x - const: "XIII(x>=2)" description: X family — XIII, multiplier x>=2 (multi-interval) - const: "XIII(0.5)" description: X family — XIII, interval multiplier 0.5 - const: "XIIII(x>=2)" description: X family — XIIII, multiplier x>=2 - const: "Y(a)" description: Y family — Y(a), dynamic-weighing band a - const: "Y(b)" description: Y family — Y(b), dynamic-weighing band b - const: "Y(II)" description: Y family — Y(II), lower-precision dynamic band - const: IIII description: Legacy R76-style non-automatic class — tolerated on old certs, migrate to XIIII - const: III description: Legacy R76-style non-automatic class — tolerated on old certs, migrate to XIII # Source-shape variants observed in extraction output. These exist # for round-trip validation of pre-normalization data; preferred form # is the canonical tokens above. - const: "XII(0,5)" description: Non-canonical decimal-comma variant of XII(0.5) - const: "XIII(0,5)" description: Non-canonical decimal-comma variant of XIII(0.5) - const: "XIII(x ≥ 2)" description: Non-canonical whitespace variant of XIII(x>=2) - const: "XIIII(x ≥ 2)" description: Non-canonical whitespace variant of XIIII(x>=2) - const: "Y (b)" description: Non-canonical whitespace variant of Y(b) CertifiedType: type: object required: [category, type_designations] properties: category: type: string description: | Instrument category per R51-1 §3.1. Free text because the GLM extractor captures full descriptions (e.g. "Automatic catchweighing instrument", "Weighing transmitter", "Checkweigher mounted on a vehicle"). Schema does not constrain because real data uses 40+ phrasings. type_designations: type: array minItems: 1 items: { type: string } module_designation: description: | Load-cell technology description (e.g. "strain gauge load cell", "electro-dynamic force compensation", "Not applicable"). Free text because R51 does not have a closed load-cell-characterization enum like R60. type: [string, "null"] description: { type: [string, "null"] } Characteristics: type: object properties: type_level: description: | Per-type characteristics shared by all variants of the certified type. R51 characteristics are heterogeneous across issuers and editions (154 distinct labels observed in 100 certs); this schema deliberately leaves type_level permissive — see R51 architecture analysis `TODO.review/r51-architecture-analysis.md` for the gap list. Additional properties beyond the named ones below are accepted. $ref: "#/definitions/TypeLevel" model_level: type: array items: { $ref: "#/definitions/ModelLevelEntry" } config_level: type: array items: { $ref: "#/definitions/ConfigLevelEntry" } TypeLevel: type: object properties: temperature_range: description: Ambient operating temperature range (e.g. -10/40 deg C). $ref: "_modules/d011_environmental.yaml#/definitions/TemperatureRange" climatic_environment_class: description: | D 11 §7.2 table 1 — climatic environment class for the installed location. NOTE: real data sometimes carries pre-normalization synonyms ("condensing", "non-condensing") in the `value` field — see _modules/d011_environmental.yaml#/normalization_map. Those synonyms are accepted here and SHOULD be migrated to canonical H1/H2/H3 by a normalization pass. allOf: - $ref: "_core.yaml#/definitions/StructuredValue" mechanical_environment_class: description: | D 11 §7.3 table 2 — mechanical environment class (vibration/shock at the location). Real data carries pre-normalization free-text values (e.g. "Vehicle mounted") that are NOT in the strict M1/M2/M3 enum; these are accepted here and SHOULD be normalized by a migration pass. allOf: - $ref: "_core.yaml#/definitions/StructuredValue" electromagnetic_environment_class: description: | D 11 §7.4 table 3 — electromagnetic environment class. Real data carries pre-normalization free-text values (e.g. "E1 and E2") that are NOT in the strict E1/E2/E3 enum; these are accepted here and SHOULD be normalized by a migration pass. allOf: - $ref: "_core.yaml#/definitions/StructuredValue" humidity_class: description: | D 11 §7.2 table 1 — humidity classification at the installed location. NOTE: R51 uses D 11 H1/H2/H3 (instrument installed location), NOT the R60 load-cell CH/NH/SH humidity marking (which is a property of the load-cell classification symbol, not the instrument). Real data carries pre-normalization synonyms ("non-condensing", "condensing") in the `value` field — see _modules/d011_environmental.yaml#/normalization_map. Those synonyms are accepted here and SHOULD be migrated to canonical H1/H2/H3 by a normalization pass. After normalization, the conditional rules under `allOf` enforce that H1 implies t08 and H2/H3 implies t09. allOf: - $ref: "_core.yaml#/definitions/StructuredValue" maximum_capacity: { $ref: "_core.yaml#/definitions/StructuredValue" } minimum_capacity: { $ref: "_core.yaml#/definitions/StructuredValue" } scale_interval: { $ref: "_core.yaml#/definitions/StructuredValue" } number_of_scale_intervals: { $ref: "_core.yaml#/definitions/StructuredValue" } maximum_speed: { $ref: "_core.yaml#/definitions/StructuredValue" } minimum_speed: { $ref: "_core.yaml#/definitions/StructuredValue" } software_identification: { $ref: "_core.yaml#/definitions/SoftwareIdentification" } # R51 type_level accepts many additional free-form characteristic labels # emitted by the GLM extractor (e.g. weighing_mode, mode_of_operation, # conveyor_speed, belt_speed, tare, power_supply_voltage). These are not # enumerated here — see TODO.review/r51-architecture-analysis.md §2.2. additionalProperties: $ref: "_core.yaml#/definitions/StructuredValue" ModelLevelEntry: type: object required: [attribute, values] properties: attribute: { type: string } unit: { $ref: "_units.yaml#/definitions/Unit" } 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: description: | Configuration axis (e.g. weighing_mode, model, number_of_sensor_rows). R51 commonly uses weighing_mode for static vs dynamic columns. Real data sometimes abuses `model` for what model_level is intended for (see TODO.review/r51-architecture-analysis.md §2.2). oneOf: - type: string - type: "null" unit: { $ref: "_units.yaml#/definitions/Unit" } values: type: array items: type: object anyOf: - required: [condition, value] properties: condition: { type: string } value: { $ref: "_core.yaml#/definitions/ValueOrScalar" } - required: [model, value] properties: model: { type: string } value: { $ref: "_core.yaml#/definitions/ValueOrScalar" } D011TestReference: description: Reference to an OIML D 11:2013 performance test applied at type evaluation. 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 } allOf: - description: | Conditional applicability of D 11 damp heat tests (R51-2 + D 11:2013 §9.2). Damp heat steady-state (t08) applies when the catchweigher is installed in H1 (stable-humidity enclosed) locations; damp heat cyclic (t09) applies when installed in H2/H3 (condensing / open-air) locations. These are expressed via type_level.humidity_class (= D 11 climatic_environment_class). if: properties: characteristics: properties: type_level: properties: humidity_class: properties: value: { const: H1 } then: properties: d011_tests_applicable: contains: { properties: { test_id: { const: d011_t08_damp_heat_steady_state } } } - if: properties: characteristics: properties: type_level: properties: humidity_class: properties: value: { enum: [H2, H3] } then: properties: d011_tests_applicable: contains: { properties: { test_id: { const: d011_t09_damp_heat_cyclic } } } - description: | If the catchweigher is rated for M3 mechanical environment (e.g. mounted on machines or conveyor belts), mechanical-shock test t17 is mandatory per D 11 §10.2. M1/M2 instruments typically do not require t17. if: properties: characteristics: properties: type_level: properties: mechanical_environment_class: properties: value: { const: M3 } then: properties: d011_tests_applicable: contains: { properties: { test_id: { const: d011_t17_mechanical_shock } } } - description: | Catchweighers rated for E3 electromagnetic environment (vehicle-battery powered) require D 11 §14 road-vehicle battery tests instead of, or in addition to, the mains-power EM suite. t40/t41 specifically apply. if: properties: characteristics: properties: type_level: properties: electromagnetic_environment_class: properties: value: { const: E3 } then: properties: d011_tests_applicable: contains: anyOf: - properties: { test_id: { const: d011_t40_battery_voltage_cranking } } - properties: { test_id: { const: d011_t41_load_dump } }