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← Schemas · R76

The R76 schema

OIML R76 (Non-automatic weighing instruments) Certificate Schema. The certificate structure lists the top-level fields of the document model. The definitions expand the family's own vocabulary. Where the corpus carries fill statistics, the observed fields table shows how often each characteristic actually appears.

Certificate structure

Every R76 certificate is one object with these top-level fields. A "core" shape is shared across all Recommendation families; the rest are defined by this family's own definitions below.

FieldShapeRequired
certificatecore · Certificateyes
issuing_authoritycore · IssuingAuthorityno
applicantscore · PartyListno
manufacturerscore · PartyListno
certified_typeCertifiedTypeyes
characteristicsCharacteristicsyes
recommendationobjectyes
test_reportscore · TestReportListno
revision_historycore · RevisionHistoryno
model_familycore · ModelFamilyno
componentsarray of core · Componentno
footnotescore · FootnoteListno
d011_tests_applicablearray of D011TestReferenceno

Observed fields

From 100 digitalized R76 certificates: how often each type-level characteristic appears (fill rate), in how many certificates, and the most common values observed.

FieldFill ratePresent inCommon values
temperature_range55%55
power_supply_voltage50%50
accuracy_class49%49III, II, ['III', 'IIII']
software_identification36%36Version number:V3.112, U2.04, 8.X.YY (8 is related to the legal metrological relevant software,and X and Y are numbers between0 to9 related to the non-legal metrological relevant software.)
scale_interval28%28
weighing_ranges28%28Single interval, ['Single interval', 'Multi-interval'], Single interval, Multi-interval, Multiple range
maximum_capacity26%26
power_supply_frequency22%22
application22%22Intended to be used for direct sales to the public, Intended to be used for weighing patients, weighing patients
weighing_range21%21
tare19%19
number_of_scale_intervals18%18
power_supply_type17%17AC, AC/DC adapter or battery, AC or DC (through battery pack)
max_partial_weighing_ranges17%172, 1
minimum_input_voltage_per_verification_scale_interval12%12
fraction_of_maximum_permissible_error11%110.5, Pind=0.5, P_{i}=0.5
load_cell_connection9%94-wire, 4 or 6-core with braided outer screen, flexiblePVC overall Jacket.0.5mm2per coreMaximum length(6-wire)=30m(60m/mm2), 6-wire (remote sensing)
minimum_load_cell_resistance8%8
maximum_load_cell_resistance8%8
measuring_range7%7
measuring_range_maximum_voltage6%6
max_verification_scale_intervals5%53000, 100000, 10000, 1000, ≤3000 or 2x3000
load_cell_excitation_voltage5%5
minimum_load_cell_impedance5%5
maximum_load_cell_impedance5%5
max_scale_intervals_single_range5%5
max_scale_intervals_multi_interval5%5
fraction_of_the_maximum_permissible_error4%40.5, 0
tare_balancing_range4%4Until 100% of Max, Until 100 % of Max, until 100% of Max
maximum_tare_effect4%4
maximum_input_impedance4%4
operational_temperature4%4min=-10, max=40
max_weighing_ranges4%42
minimum_signal_input_voltage4%40, min=0, max=None
load_cell_interface4%46-wire with sense technology, 6-wire(remote sensing), 6-wire with sense technology, may be configured as 4-wire
max_verification_scale_intervals_n3%33000, 100000, min=None, max=3000
maximum_cable_length3%3
minimum_input_voltage_per_vsi3%31, 0.5, ['0.2μV', '0.52μV']
initial_zero_setting_range3%3
minimum_capacity3%3
minimum_input_impedance3%3
actual_scale_interval3%3['d', '10d', '20d', '50d', '100d'], 10d, e=d
maximum_partial_weighing_ranges3%32
fraction_of_max_permissible_error3%30.5
maximum_number_of_scale_intervals_multi_interval3%3
maximum_number_of_partial_weighing_ranges3%32
max_scale_intervals_multi_range3%3
max_scale_intervals3%33000, min=None, max=3000
configuration3%3Analog load cells, Digital load cells or weighing module
type2%2WX/WXS/CST/WTS/PC5/PC5S/PC5H/PC5SH/PC6/PC6S/PC6H/PC6SH, MZ3042
semi_automatic_zero_setting_range2%2
zero_tracking_range2%2
number_of_intervals2%2min=None, max=3000, ≤10,000 or≤2x6000, ≤1000 or≤2x1000
load_cell_impedance2%2
interface2%2Protective, according to paragraph5.3.6, Protective, according to paragraph 5.3.6
power_supply_battery2%2
max_tare_effect2%2-Max, 20 × e_i
maximum_tare2%2-100% Max
maximum_preset_tare2%2-100% Max
minimum_input_voltage_per_scale_interval2%2
maximum_tare_value2%2
load_cell_cable_length2%2
max_scale_intervals_single2%2
fractional_factor_pi2%20.5
applied_error_fraction_pi2%20.5
tare_single_interval2%2
tare_multi_interval2%2-(Max1-e1), ≤ -Max1
power_supply_voltage_dc2%213.8, 6
min_input_voltage_per_verification_scale_interval2%21, 0.66
min_load_cell_resistance2%287, 35
max_load_cell_resistance2%21220, min=1050, max=1150
software_scale_firmware_version2%25.103
software_pos_checksum2%226141, 26141
electromagnetic_environment_class2%2E2
max_scale_intervals_multiple_range2%23000, min=None, max=3000
max2%2
maximum_number_of_scale_intervals_one_weighing_range2%2min=None, max=6000
maximum_number_of_digital_load_cells1%18
power_supply_to_digital_load_cell1%19
preset_tare_value1%1Until 100% of Max
fractional_error_pi1%10.5
tare_range1%1-Max
fraction_max_permissible_error_pi1%10
minimum_load_cell_input_impedance1%1350
software_version_format1%1v x.x
software_checksum1%141EC
software_separation1%1True
legal_software_update_method1%1calibration switch
application_software_version_format1%1nctssxx.aar
self_test_function1%1True
automatic_zero_setting_device_range1%1within 4% of Max
zero_indicating_device1%1True
stable_indicating_device1%1True
printing_device1%1True
extended_resolution1%1True
interfaces1%1['CAN/RS485', 'Digital input (up to 4)', 'Digital output (up to 4)', 'CAN bus', 'RS232', 'Ethernet (optional)']
minimum_input_voltage1%10.5μV per VSI(version01.xx)0.4μV per VSI(version02.xx and3.xx)
load_cell_connecting_system1%16 wire system, screened
module_fractional_factor1%10.5for the indicator
connected_load_cells1%1Shall comply withR60
subtractive_tare1%1≤-Max
supply_frequency1%1min=50, max=60
output_voltage1%112
weighing_range_type1%1Single-interval or multi-interval (up to 2 intervals)
verification_scale_interval_class_iii1%1min=20, max=None
verification_scale_interval_class_iiii1%1min=10, max=None
minimum_verification_scale_interval_class_iii1%1min=0.1, max=None
minimum_verification_scale_interval_class_iiii1%1min=5, max=None
max_verification_scale_intervals_class_iii1%1min=None, max=10000
max_verification_scale_intervals_class_iiii1%1min=None, max=1000
ewi_module_accuracy_class1%1III or IIII
ewi_module_weighing_range_type1%1Single-interval or multi-interval
ewi_module_max_verification_scale_intervals_class_iii1%1min=None, max=10000
ewi_module_max_verification_scale_intervals_class_iiii1%1min=None, max=1000
ewi_module_max_tare_effect1%1-Max
ewi_module_fractional_factor1%10.5
ewi_module_min_input_voltage_per_vsi1%10.3
ewi_module_excitation_voltage1%15
ewi_module_circuit_for_remote_sense1%1Present using 6-wire connection
ewi_module_min_input_impedance1%158
ewi_module_max_input_impedance1%11200
ewi_module_mains_power_supply1%17 VDC
ewi_module_operational_temperature1%1min=-10, max=40
ewi_module_max_cable_length1%11435 m/mm²
ewi_module_software_version1%1E1.xxxxx
power_supply_current1%11.25
power_supply_dc1%112-36V DC via mains adaptor or external battery pack
power_supply_ac1%1110-240V AC
verification_interval1%12
max_scale_intervals_dual1%13000
maximum_number_of_verification_scale_intervals_n1%1['10000 for Class III, 1000 for Class IIII', '7500 for Class III, 1000 for Class IIII']
maximum_capacity_of_interval_or_range_maxi1%1['ni×ei', 'ni×ei']
verification_scale_interval_ei1%1['ei=Maxi/ni', 'ei=Maxi/ni']
connecting_cable_to_load_cells1%14-wire or 6-wire system
supply_voltage1%112-24VDC,or230VAC
shunt_diode_safety_barrier1%1['N/A', 'MTL7761ac,MTL7766Pac,or similar']
signal_voltage_per_verification_scale_interval1%1min=0.83, max=None
max_scale_intervals_n1%13200
software_version_number1%19351
software_identification_weigh_bridge1%1Version number:1.xx(wherexxrepresentsmetrologicalnotrelevantchanges)
maximum_number_of_verification_scale_intervals1%13000
maximum_value_of_the_cable_length_per_cross_wire_section_between_the_indicator_and_the_load_cells1%1The load cells are connected directly without junction box
power_supply_voltage_ac_dc_adapter1%17.5
power_supply_voltage_battery1%16
power_supply_voltage_alt1%1min=200, max=240
cable_length_connection1%1The load cells are connected directly without junction box
verification_scale_interval_single_interval1%12
verification_scale_interval_multi_interval1%15
maximum_number_of_scale_intervals_single_interval1%13000
maximum_number_of_weighing_ranges1%12
legally_relevant_software_version1%11.01
max_scale_intervals_multi1%16000
power_supply_frequency_ac1%1min=50, max=60
power_supply_type_ac1%1AC
power_supply_voltage_dc_adapter1%1min=9, max=28
power_supply_voltage_dc_battery1%112
power_supply_voltage_dc_ics466x1%1min=5.3, max=12.6
max_load_platforms_ics6x9_1_ics4x5_1_ics466x1%12
max_load_platforms_ics4x9_1_ics426x1%11
max_load_platforms_ics6x5_11%14
software_version_jposdibal1%11.X.XX(x=0...9)
pc_software_checksum1%18A7DED6411F674524CC47FB81
software_version_wldibal1%12.0.3
weighing_cpu_checksum1%1110C
software_legal_cert_version1%12.102
humidity_class1%1non-condensing
intended_location1%1closed
dc_power_supply_voltage1%1min=9, max=30
dc_power_supply_type1%1DC
software_version1%1V1.xx or V2.xx (xx=00...99 for the legally non-relevant software)
power_supply_adapter1%1100-240VAC/DC
power_supply_battery_options1%1['6V lead acid battery', '7.2V NiMH battery']
maximum_cable_length_per_cross_wire_section1%12997.9
firmware_identification1%12.0.3
max_number_of_partial_weighing_ranges1%1
maximum_capacity_g1%1min=122, max=3200
maximum_capacity_ct1%1min=610, max=16000
verification_scale_interval_g1%1min=0.01, max=None
verification_scale_interval_ct1%1min=0.1, max=None
maximum_inclination_x_axis1%15
maximum_inclination_y_axis1%13
software_legal_certification_version1%12.102
n_le1%13000
number_of_verification_scale_intervals_n1%1min=None, max=3000
special_temperature_limits1%1min=0, max=40
d1%1min=0.1, max=None
n1%1min=None, max=10100
tare_weighing_range1%1Until 100% of Max
ingress_protection_rating1%1IP52
display1%1LCD
storage_temperature1%1min=-20, max=60
accuracy_class_oiml_r761%1III
the_applied_error_fraction_pi1%10.5
weighing_software_version1%1O.1.yy
application_software_version1%1A.x.yy
operating_system1%1Embedded
primary_indication_unit1%1kg
weighing_range_configuration1%1Single or dual range
actual_scale_interval_d1%1min=0.1, max=None
maximum_number_of_verification_scale_intervals_per_weighing_rangen1%1min=None, max=3000
maximum_number_of_actual_scale_interval1%1min=None, max=10000
maximum_subtractive_tare_effect1%1-Max
minimum_signal_voltage_per_verification_scale_interval_muv_over_e1%10.5
load_cell_excitation_voltage_v1%13.3
load_cell_excitation_waveform_v1%1DC
minimal_load_cell_impedance_ohm1%187
maximal_load_cell_impedance_ohm1%11200
maximum_value_of_the_cable_length_per_cross_wire_section_between_the_indicator_and_the_junction_box_or_load_cells1%150m/mm2
high_resolution_mode1%110x
internal_resolution1%1>16,000,000 counts
minimum_signal_voltage_dead_load1%11
analog_range1%1min=1, max=40
remote_sense_circuit1%1Active
maximum_load_cell_cable_length1%146
mains_power_supply_voltage1%1min=100, max=240
mains_power_supply_frequency1%1min=50, max=60
minimum_input_voltage_per_verification_interval1%10.66
max_cable_length_per_cross_section1%1Length406m/mm2
max_scale_intervals_single_interval1%1min=None, max=3000
max_number_of_load_platforms1%12
max_scale_intervals_one_weighing_range1%1min=None, max=3000
software_identification_scale_application1%1SA1.y.z(y:0-99,z:0-9999)
software_identification_viewer_application1%1VA1.y.z(y:0-99,z:0-9999)
cable_length_note1%1In case sense technology is not used the load cells are connected directly without junction box or extension cable
maximum_value_of_the_cable_length_per_cross_wire_section1%11956

Definitions

The shapes named by the certificate structure above, expanded to their fields.

AccuracyClass

AccuracyClassValue

InstrumentType

CertifiedType

categorystringrequired
type_designationsarray of stringrequired
module_designationobject
descriptionstring

Characteristics

type_levelTypeLevel
model_levelarray of ModelLevelEntry
config_levelarray of ConfigLevelEntry

TypeLevel

accuracy_classAccuracyClass
instrument_typeInstrumentType
temperature_rangeTemperatureRange
humidity_classClimaticClass
electromagnetic_environment_classEMClass
mechanical_environment_classMechanicalClass
maximum_capacitycore · StructuredValue
minimum_capacitycore · StructuredValue
verification_scale_intervalcore · StructuredValue
actual_scale_intervalcore · StructuredValue
number_of_scale_intervalscore · StructuredValue
measuring_rangecore · StructuredValue
weighing_rangecore · StructuredValue
tare_balancing_rangecore · StructuredValue
preset_tare_valuecore · StructuredValue
maximum_tarecore · StructuredValue
maximum_tare_effectcore · StructuredValue
maximum_number_of_verification_scale_intervalscore · StructuredValue
fraction_of_maximum_permissible_errorcore · StructuredValue
fraction_max_permissible_error_picore · StructuredValue
power_supply_voltagecore · StructuredValue
power_supply_typecore · StructuredValue
power_supply_frequencycore · StructuredValue
load_cell_excitation_voltagecore · StructuredValue
minimum_load_cell_impedancecore · StructuredValue
maximum_load_cell_impedancecore · StructuredValue
minimum_input_voltage_per_verification_scale_intervalcore · StructuredValue
maximum_cable_lengthcore · StructuredValue
software_identificationcore · SoftwareIdentification

ModelLevelEntry

attributestringrequired
unitUnit
valuesarray of objectrequired

ConfigLevelEntry

attributestringrequired
axisobjectrequired
unitUnit
valuesarray of objectrequired

D011TestReference

test_idstringrequired
test_level_indexinteger
notesstring