Type MVD2555‐RS485 Accuracy class 0.1 Mains connection/supply voltage V 115/230, +6 %; -14 %; Power consumption, max. Fusible link (slow‐blow) Hz VA mA 48...60 8 T 125 mA L (115 V) / T 63 mA L (230 V) Amplifier Carrier frequency Bridge excitation voltage UB (±5 %) Measuring transducer Strain‐gauge half and full bridge Inductive half and full bridge, LVDT Perm. cable length between transducer and amplifier Hz Vrms W mH m 4800±0.32 UB = 1 Vrms 1 or 2.5 UB = 2.5 Vrms 40...5000 80...5000 6...19 2.5...20 max. 500 Measuring ranges, adjustable (‐1 dB) Measuring range (Hardware) Measuring ranges UB=2.5 V UB=1 V Bridge balance range UB=2.5 V UB=1 V Noise voltage1) 0...200 Hz 0...1.25 Hz Hz mV/V mV/V mV/V mV/V mV/Vpp mV/Vpp low 0.2...4 0.5...10 ±4 ±10 0.5 0.025 0.05...500 medium high 2...40 20...400 5...100 50...1000 ±40 ±400 ±100 ±1000 1 10 0.1 1 Effect of a 10 K change of the ambient temperature1) on % 0.04/0.1 0.04/0.1 0.04/0,1 the digital signal (with autocalibration on/off) Sensitivity Zero point mV/V 0.2/2 2/20 20/200 Measuring frequency range Nom. val. fc ‐1 dB ‐3 dBPhase del.Rise tm Overshoot Butterworth low pass (Hz) (Hz) (Hz) (ms) (ms) (%) 1000 1010 1 165 0.66 0.35 12 500 485 580 1.1 0.7 12 200 245 290 1.7 1.3 11 80 78 98 4.3 3.8 10 40 38 50 7.1 7.3 8 20 19 26 12 14 7 10 9.1 12.5 22 28 6 5 4.6 6.3 41 56 5 Bessel low pass Nom. val. fc ‐1 dB ‐3 dB Phase del.Rise time Overshoot (Hz) (Hz) (Hz) ( ms) (ms) (%) 900 900 1550 0.49 0.28 4.1 400 400 750 0.8 0.6 2 200 215 395 1.3 1.0 2 100 111 190 2.5 2.1 2.5 40 39 68 5 5.5 1.1 20 21 37 8.1 10 1 10 11 19 14 19 0.7 5 5.3 9.7 25 38 0.3 2.5 2.7 4.9 48 75 0 1.25 1.4 2.4 90 150 0 0.5 0.7 1.2 180 300 0 0.2 0.17 0.3 700 1200 0 0.1 0.09 0.16 1400 2300 0 0.05 0.044 0.075 2900 4700 0 Max. permissible common‐mode voltage V ±5 V Common‐mode rejection dB typ. 110 Max. differential voltage DC V ±10 Linearity deviation % typ. 0.05 Long term drift over 48 hours, measuring range 2 mV/V, with autocalibration on/off 30 min. after power up (warm‐up time) mV/V <0.2 / <0.4

1) for UB=2.5 V, referred to input signal

Analogue output Impressed voltage Perm. load resistance, min. Internal resistance, max. Impressed current Internal resistance, max. Perm. load resistance, min. The analogue output can be used to display net signal or gross signal, positive, negative peak value store or peak‐ peak value store	V kW W mA W kW	±10 V (asymmetrical) 5 1.5 ±20; 4...20 500 100
Noise voltage at the output, typ.	mVpp	4
Residual carrier voltage 38.4 kHz	mVpp	3
Residual carrier voltage 4800 Hz	mVpp	2
Long‐term drift over 48 hours
(30 min after power‐up)	mV	< 3
Effect of a 10 K change of the ambient temperature
(effect added to the digital value)
Zero point	mV	< 3
Sensitivity	%	< 0.05
Limit switches	V	4
Number
Reference Level		gross, net, peak values
Reference voltage (freely adjustable)	V	‐10 ...+10
Factory setup, hysteresis	V	0.1
Adjustment accuracy	mV	0.33
Response time	ms	3.4
		(all Butterworth filter frequencies;
		Bessel filter frequencies >1.25 Hz.
		With values doubling every time a lower measuring
		frequency is used)
Peak value store	ms	2
Number
Function		gross; net; peak values
Update time		0.84
		(all Butterworth filters,
		Bessel filters >1.25 Hz)
Clear the peak value store (switching to current value)	ms	3.3 (via control inputs)
Hold the current value / peak value	ms	3.3 (via control inputs)
Time constant for envelope curve function	ms	100 ... 60 000 (±6 %)
Control outputs (limit value 1...4, error VCTRL)	V	5
Nominal voltage, external supply		24
Permissible supply‐voltage range	V	6...30
Output current, max.	A	0.5
Short‐circuit current, typ.	A	0.8
Duration of short circuit		unlimited
Isolation voltage, typ.	Vrms	350
Control inputs		6
Input voltage range, LOW	V	0...5
Input voltage range, HIGH	V	10...24
Input current, typ., HIGH‐level = 24 V	mA	12