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Description
The measuring value amplifier AD-MV 50 GL (for 2/3 lead technology) or AD-MV 54 GL (for 4-lead technology only) converts the measuring signal issued from a resistance generator Pt 100 (according to DIN IEC 751) to an impressed output signal (i.e. 0-20 mA or similar). The output characteristic curve is issued temperature linear. When using the 3-lead switching lead, resistance up to 100 Ohms are compensated. In 2-lead switching a subsequent zero alignment and full alignment via trim potentiometers at the front is possible. The analogue output signal is galvanically separated from the supply voltage.
A highly efficient, integrated electronic wide-range power pack (ALLPOWER) enables operation with 20-253V DC and 50-253V AC. There is no possibility of cross polarity of the connection voltage. A high packing density is achieved due to its narrow build.
Application
Temperature measuring with Pt 100 temperature transmitter for continuous transformation of temperature variables to analogue signals.
Specific characteristics
Pt 100 conversion into standard signals
current or voltage output
Wide range power supply
Conversion of 2, 3 and 4-wire technology possible
Business data
| Order number |
| AD-MV 50 GL |
for 2 - and 3-wire connection |
| AD-MV 54 GL |
for 4-wire connection |
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Technical specifications
| Pt100 input |
| Max. measuring range |
-200 ... 800 °C1) |
| Connection method |
2, 3 or 4-wire |
| Output current |
| Output range |
0 ... 20 mA, 4 ... 20 mA1) |
| Max. burden |
400 Ohm |
| Residual ripple |
25 µAss |
| Output voltage |
| Output range |
0 ... 10 V, 2 ... 10 V 1) |
| Min. burden |
1 kOhm |
| Residual ripple |
50 mVss |
| Supply |
| Voltage range AC |
50 ... 253 V AC, 50/60 Hz |
| Nominal voltage AC |
230 VAC |
| Voltage range DC |
20 ... 253 V DC |
| Nominal voltage DC |
24 V DC |
| Power consumption AC / DC |
1,8 VA / 1W |
| Transmission behaviour |
| Accuracy |
< 0,2 % |
| Temperature influence |
100 ppm/K |
| Response time |
~ 50 ms |
| Housing |
| Dimensions (WxHxD) |
18x78x103 mm |
| Type of protection |
IP 20 |
| Connection method |
screw clamp |
| Terminals, wire cross section |
2,5 mm² flex wire / 4 mm² one wire |
| Bolting torque terminals |
0,5 Nm |
| Weight |
~ 100 g |
| Manner of fastening |
35 mm DIN rail 35mm |
| Environmental conditions |
| Ambient temperature |
0 ... 50 °C |
| Storage and transport |
-10 ... 70 °C (no thawing) |
| EMC |
| Product family standard |
EN 61326 2) |
| Emitted interference |
EN 55011, CISPR11 Cl. B |
| Electrical safety requirements |
| Product family standard |
EN 61010-1 |
| Overvoltage category |
II |
| Pollution degree |
2 |
| Galvanic isolation, test voltages |
| Signal / supply unit |
3 kV (1 min.) |
| Protection circuits |
| Input |
electrical surge protection |
| Output |
electrical surge protection |
| Power supply |
electrical surge and reverse current protection |
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1) Signal range according to costumer data. |
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2) During electromagnetic disturbance minor changes in output signal are possible. |
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