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Voltage Transducer DVM-UI series U = 2000 ... 4000 V
| Supply Voltage | 14.25 ... 26.4 V |
| Operating Temperature Range | −40 ... 85 °C |
| Isolation Test Voltage | 12 kV |
| Primary Nominal RMS Current (IPN) | 0 ... 4000 V |
| Current Consumption (IC) | 84 mA |
| Resistance of Primary Winding (RP) | 25.1 MΩ |
EN 50155: 2021, EN 50121-3-2: 2016, EN 50124-1: 2017, IEC 62497-1: 2010, UL 347 1): 2016 Application Domain, Industrial and Railway (fixed installations and onboard). Note: 1) When used with UL 347 Isolator N° 92.24.06.420.0. Page 1/13 out modifications on its transducers, LEM International SA Route du Nant-d’Avril, 152 www.lem.com
The DVM 4000-UI is a None current transducer from LEM for the electronic measurement of voltage: DC, AC , pulsed..., with galvanic isolation.
It offers excellent accuracy and low temperature drift. Typical applications include EN 50155: 2021, EN 50121-3-2: 2016, EN 50124-1: 2017 and IEC 62497-1: 2010.
Key characteristics from the official datasheet: linearity error −0.5 ... 0.5 % of IPN; operating temperature −40 ... 85 °C.
| General Information | |
|---|---|
| Manufacturer | LEM |
| Product Series | DVM |
| Product Reference | DVM 4000-UI |
| Nominal Primary Voltage | 0 / Max 2000 V |
| Primary Nominal Current | 0 ... 4000 V |
| Supply Voltage | 14.25 ... 26.4 V |
| Measurement | voltage: DC, AC (U ≥ 0 V), pulsed... |
| Mounting | — |
| Application Domain | Industrial and Railway (fixed installations and onboard) |
| Electrical Data — DVM 4000-UI | |
|---|---|
| Primary Nominal RMS Current (IPN) | 0 ... 4000 V |
| Supply Voltage (UC) | 14.25 ... 26.4 V |
| Current Consumption (IC) | 84 mA |
| Resistance of Primary Winding (RP) | 25.1 MΩ |
| Primary nominal DC voltage (continuous) (UPNDC) | Min 0 / Max 2000 V |
| Measuring resistance (RM) | Min 0 Ω |
| Secondary nominal direct current (continuous) (ISNDC) | Min 4 / Max 20 mA |
| Secondary current limit (IS) | Min 3 / Max 21 mA |
| ⎓ DC supply voltage (UC) | Min 14.25 / Typ 24 / Max 26.4 V |
| Rise time of (10 % ... 90 %) U C (trise) | Max 100 ms |
| Total error (εtot) | Min −1 / Max 1 % |
| Temperature variation of referred to primary U O E (UTOE) | Min −10.0 / Max 10.0 V |
| Electrical Offset voltage referred to primary (UOE) | Min −5 / Max 5 V |
| Sensitivity (S) | Typ 10 µA/V |
| Sensitivity error (εS) | Min −0.3 / Max 0.3 % |
| Temperature variation of sensitivity error (εTS) | Min −0.5 / Max 0.5 % |
| Linearity error (εL) | Min −0.5 / Max 0.5 U % of P N |
| RMS noise current 100 Hz ... 100 kHz referred to secondary (Ino) | Typ 16.5 µA |
| Start-up time (tstart) | Typ 190 / Max 250 ms |
| Resistance of primary (RP) | Typ 25.1 MΩ |
| Absolute Maximum Ratings | |
|---|---|
| ⎓ Maximum DC supply voltage (U = 0 V, 0.1 s) P (ÛCmax) | 33.6 V |
| Absolute Maximum Ratings | |
|---|---|
| ⎓ Maximum DC supply voltage (working) (− 40 … + 85 °C) (UCmax) | 26.4 V |
| Absolute Maximum Ratings | |
|---|---|
| Electrostatic discharge voltage (HBM - Human Body Model) (UESDHBM) | 4 kV |
| Absolute Maximum Ratings | |
|---|---|
| Maximum DC common mode voltage (UU+HV+HV−|UUand−|HV+HV−) | ≤ 6.3 U ≤ P M kV |
| Accuracy & Dynamic Performance | |
|---|---|
| Linearity Error (εL) | −0.5 ... 0.5 % of IPN |
| Electrical Offset Voltage (VO E) @ IP = 0 | −10.0 ... 10.0 V |
| Response Time to 90 % of IPN Step | 50 ... 60 µs |
| Insulation Coordination | |
|---|---|
| RMS Voltage for AC Insulation Test (50 Hz, 1 min) Ud | 12 kV |
| Impulse Withstand Voltage (1.2/50 µs) UNi | 30 kV |
| Creepage Distance (dCp) | 101 mm |
| Clearance (dCI) | 74 mm |
| Comparative Tracking Index (CTI) | 600 |
| Mean failure rate (λ) | Typ 1/1827550 h−1 |
| RMS voltage for AC insulation test, 50 Hz, 1 min (Ud) | 12 kV |
| Impulse withstand voltage 1.2/50 μs (UNi) | 30 kV |
| (q Partial discharge RMS test voltage < 10 pC) m (Ut) | 5000 V |
| Case material | V0 |
| Application example RMS voltage line-to-neutral | 1000 V |
| Application example System voltage RMS | 3600 V |
| Application example Rated insulation RMS voltage (UNm) | 4800 V |
| Application example Rated insulation RMS voltage | 1000 V |
| Environmental & Mechanical Characteristics | |
|---|---|
| Ambient Operating Temperature (TA) | −40 ... 85 °C |
| Ambient Storage Temperature (TA st) | −50 ... 90 °C |
| Mass (m) | 375 g |
| Ingress protection rating | Typ IP40 |
| Pollution degree | Max PD4 |
| Altitude | Max 1) 2000 m |
| Impact rating | Typ IK06 |
| Standards & Certifications | |
|---|---|
| EN 50155 | Compliance |
| EN 50121-3-2 | Compliance |
| EN 50124-1 | Compliance |
| IEC 62497-1 | Compliance |
| UL 347 | 1): |
Note: Specifications are taken from the official DVM 4000-UI datasheet. Parameters that could not be confirmed from the datasheet are marked UNVERIFIED.
Official technical documentation for the DVM 4000-UI.
Outline dimensions, pin layout and connection diagrams of the DVM 4000-UI are shown below.
| Outline Dimensions & Mechanical Data | |
|---|---|
| Mass | 375 g |
| Resistance of Primary Winding (RP) | 25.1 MΩ |
| Case material | V0 |
| Ingress protection rating | Typ IP40 |
Note: All dimensions are in millimetres. Refer to the official datasheet for the complete dimension drawing.
Typical applications of the DVM 4000-UI.
The characteristic curves of the DVM 4000-UI from the official datasheet are shown below.
| Accuracy & Dynamic Characteristics | |
|---|---|
| Rise time of (10 % ... 90 %) U C (trise) | Max 100 ms |
| Total error (εtot) | Min −1 / Max 1 % |
| Sensitivity (S) | Typ 10 µA/V |
| Sensitivity error (εS) | Min −0.3 / Max 0.3 % |
| Temperature variation of sensitivity error (εTS) | Min −0.5 / Max 0.5 % |
| Linearity error (εL) | Min −0.5 / Max 0.5 U % of P N |
| Response Time to 90 % of IPN Step | 50 ... 60 µs |
Note: Refer to the datasheet for the complete set of characteristic curves.
Other models of the DV Series share the same measurement principle, mounting concept and output interface family.
