Interfaces: RS485, Ethernet, front USB
1 digital input / output
LCD color display
Storage: 512 MB
3 voltage, 4 current inputs and 2 differential current inputs
Harmonics per order 1 - 50 for U/I.
In conjunction with PQ S module: Measurement and recording of power quality according to DIN EN 50160
The UMD 98 is a high-performance front panel installation measuring device and replaces all analogueue measuring devices. It measures 3/4-phase current and voltage in 4-quadrant operation in class 0.2 and thus the work in class 0.5s as well as all usual line sizes, e.g. harmonics up to 50. Harmonious. The device is connected via current transformers with N/5 A and N/1 A. It maps the power quality according to EN 50160, EN 61000-2-2, EN 61000-2-4, EN 61000-2-12. It has a brilliant large color graphic display. The UMD 98 is conveniently operated via 5 function keys. It has two analogue inputs for RCM measurement. It can be used in 230/400 V TN-S systems. It has a large 512 MB memory and an integrated web server. The device can be accessed via the Ethernet interface (with 5 ports) and the mini-USB connection on the front. This means that Internet protocols can also be read in and PLC and building control systems can be easily connected. Digital inputs/outputs and a serial RS485 interface are also integrated. For network analysis, the measuring device can be extended by the firmware modules PQ S and GO. The device is parameterized or visualized with the ENVIS software. The CPU operates at 25.6 kHz.
Measurement:
VOLTAGE (ULL; ULN) U1; U2; U3, UN, U12; U23; U31 CL. 0.2
Current IL1; IL2; IL3; IN; 2xRCM Cl. 0.2
Power active/reactive power import/export per phase L1; L2; L3; per tariff T1; T2; T3
Active power P1; P2; P3; 3P Import; Export, total terminal 0.5
Reactive power Q1, Q2, Q3; 3Q Cl. 1
Apparent power S1; S2 ; S3; 3S Cl. 1
Harmonic distortion power D1; D2; D3
Power factor cos phi PF1, PF2, PF3; PFN, PF, cos phi1, cos phi2, cos phi3 cl. 0.5
Symmetry yes
Harmonic voltage THDU1; THDU2; THDU3; THDU12; THDU23; THDU31 Cl. 2
Harmonic current THDI1; THDI2; THDI3; Cl. 2
Harmonic per order 1. To 50. For U/I.
Distortion factor U1fh; U2fh; U3fh; I1fh; I2fh; I3fh
Frequency 40...70 Hz Cl. 0.05
Active work 4 quadrants Measurement Import/Export per phase; per tariff; total Cl. 0.5s
Reactive work 4 quadrants Measurement Import/Export per phase; per tariff; total Cl. 2
Flicker option: PQ S.
Data logger:
Memory (Flash) ULN; ULL; I; P; Q; S; D; THDU; THDI; f; UFH; Status I/O; Energy active/reactive power import/export per phase L1; L2; L3 per tariff T1; T2; T3
Voltage dips option: PQ S.
Oscillogram function Option: Go
Other functions:
Logic alarms
Limit values for over/under
I/O 1 digital input/output;Memory 512 MB Flash
Recording interval sec; min; h; days; month; year
Communication:
RS485 Modbus max. 921600 baud
Ethernet 100 MBit/s
USB
Electric connection
SUPPLY VOLTAGE U: 110...250 V AC
Power consumption 8 VA / 4 W.
Overvoltage category CAT III 300 V
Measuring ranges:
Nominal voltage 8...660 V AC (400 V)
Optional 20....865 V (690)
Overload 1.2 kV LN/1s;Impedance 3.6 MOhm
Input signal x/1//5A;Overcurrent 1.2x in (max. 70 A/1s)
Sampling rate 25.6 kHz
PQ evaluation option: En 50160, EN 61000-2-2, EN 61000-2-4, EN 61000-2-12
Ambient conditions:
Temperature range operation T:-25°
04053199982035, PQ Plus, 11.29.1110.co, UMD 98RCM, voltage display, panel meter
