R85/2008-A-NL1-24.01 Rev. 0
OIML Certificate
OIML Member State The Netherlands
Number R85/2008-A-NL1-24.01 revision 0 Project number 3818745 Page 1 of 3
NMi Certin B.V.
Person responsible: M.Ph.D. Schmidt
Applicant and Flowworld (Shandong) Technologies LTD. Manufacturer No.2222, South Section of YuQing Road Pingan Street Office, Changqing District Jinan Shandong P.R. China
Identification of the certified type An automatic level gauge (servo principle) with temperature and density displacer sensor Type: LTD-50
Characteristics See following page(s)
This OIML Certificate is issued under scheme A.
This Certificate attests the conformity of the above identified type (represented by the sample(s) identified in the OIML Type Evaluation Report) with the requirements of the following Recommendation of the International Organization of Legal Metrology (OIML):
R 85-1&2:2008 "Automatic level gauges for measuring the level of liquid in stationary storage tanks"
This Certificate relates only to the metrological and technical characteristics of the type of measuring instrument covered by the relevant OIML International Recommendation identified above. This Certificate does not bestow any form of legal international approval.
Important note: Apart from the mention of the Certificate's reference number and the name of the OIML Member State in which the Certificate was issued, partial quotation of the Certificate and of the associated OIML Type Evaluation Report(s) is not permitted, although either may be reproduced in full.
Issuing Authority
NMi Certin B.V., OIML Issuing Authority NL1 18 July 2024
Certification Board
OIML Certificate
OIML Member State The Netherlands
Number R85/2008-A-NL1-24.01 revision 0 Project number 3818745 Page 2 of 3
- No. NMi-2579596-01 dated 14 June 2022 that includes 29 pages;
The conformity was established by the results of tests and examinations provided in the associated report(s):
- No. NMi-2579596-02 dated 14 June 2022 that includes 23 pages.
In Table 1 the general characteristics of the measuring instrument are presented.
Characteristics of the measuring instrument
The construction of the measuring instrument is recorded in the Documentation folder R85-2008-A-NL1-24.01-1.
The automatic level gauge is intended to measure by servo principle automatically and display the level of the liquid contained in a tank. Herewith the following displacer types can be used:
SF displacer with no additional sensors;
TF displacer including temperature sensor;
MF displacer including temperature sensor and density sensor.
Table 1 General characteristics
| Maximum measuring range level | 30 metres(applicable for all displacer types) | |
| Temperature displacer measuring range | -5+35℃(only applicable for TF and MF displacers)* | |
| Density displacer measuring range | 600-1020kg/m3(only applicable for MF displacers)*at maximum viscosity of 5mPa·s | |
| Ambient temperature range | -40+70℃;condensing humidity | |
| Power supply voltage | 200-240V AC;50/60Hz24-48V DC | |
| Software identification | Level gauge | Version number:V10.9Checksum:136699 |
| TF or MF displacer | Version number:V5.2Checksum:63162 | |
| Data communication | Inputs | -Manual temperature input-3xHART for temperature transducers |
| Outputs | -Display-4-20mA analog output(not for legal metrology)-Modbus RS485 serial communication | |
- The mentioned measuring ranges can be used for legal metrology. Outside these ranges, the measurement performance is not approved.
OIML Certificate
OIML Member State The Netherlands
Number R85/2008-A-NL1-24.01 revision 0 Project number 3818745 Page 3 of 3
Page 3 of 3
Certificate history:
| Revision | Date | Description of the modification |
| 0 | 18 July 2024 | Initial Issue |