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Temperature Transmitter DER 44
Temperature Measuring with Pt100-Sensors
The Temperature Transmitter DR 44 converts the sensor signal on input to temperature linear standard signal and makes it galvanic isolated available on output.
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Cost optimized design
Economical temperature measuring for standard applications with Pt100 sensor with 4-wire connection -
Only 60 mm installation depth, 11.2 mm wide
Can be installed in economical standard terminal boxes -
Fixed ranges, easy to use
Ready to use without any settings or adjustments -
Zero/Span compensation on front panel
for readjustment of sensor signal or measuring equipment -
True 3-port separation
Protection against erroneous measurements due to parasitic voltages or ground loops -
Protective Separation acc. to EN 61140
Protects service personnel and downstream devices against impermissibly high voltage -
Unlimited use with 24 V AC/DC power supply
Universally applicable for all measurement and industrial applications - 5 Years Warranty
The Temperature Transmitter DER 44 converts the sensor signal on input to temperature linear standard signal and makes it galvanic isolated available on output.
For applications where one measuring range only is used, the Temperature Transmitter DER 44 offers a cost-effective alternative.
A cross-connector for the auxiliary power supply ensures fast and easy installation. The slim housing with 11.2 mm width saves significant space on the DIN-rail. If required a measuring range compensation can be performed at the Zero/Scan potentiometers behind the front cover.
Analog signal processing guarantees precise measured values with short response times and outstanding signal reproduction at the output.
Protective Separation and the 24 V AC/DC power supply make the Temperature Transmitter DER 44 universally applicable for all measurement and industrial applications, as well as for building automation.
Input
| Sensor | Pt 100, 4-wire |
| Measuring range |
Fixed ranges within -100 to +450 °C see order information |
| Input error max. | < 0.1 K / 0.1 % of span |
| Sensor wire resistance | 10 Ohm / wire of 4-wire sensor connection |
| Sensor current | 1 mA |
Output
| Output signal |
0 to 20 mA, 4 to 20 mA, 0 to 5 V, 1 to 5 V, 0 to 10 V, 2 to 10 V see order information |
|
| Load |
Current output Voltage output |
≤ 500 Ohm ≥ 2 kOhm |
| Ripple | < 10 mVrms | |
General Data
| Transmission error | < 0.1 % full scale + input error | |
| Temperature coefficient 1) | < 0.025 %/K | |
| Response time | < 10 ms | |
| Test voltage |
3 kV AC, 50 Hz, 1 min. input against output against power supply |
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Working voltage 2) (Basic Insulation) |
Up to 600 V AC/DC for overvoltage category II and pollution degree 2 acc. to EN 61010-1 between all circuits. | |
| Protection against electrical shock 2) | Protective separation according to EN 61140 by reinforced insulation in accordance with EN61010-1 up to 300 V AC/DC for overvoltage category II and pollution degree 2 between all circuits. | |
| Ambient temperature |
Operation Transport and storage |
–20 °C to +60 °C (–4 °F to +140 °F) –35 °C to +85 °C (–31 °F to +185 °F) |
| Power supply | 24 V AC/DC, ± 15 % |
AC: 48 to 62 Hz, approx. 2 VA DC: approx. 0.7 W |
| EMC 3) | EN 61326 -1 | |
| Construction | 11.2 mm housing, protection class: IP 20 | |
| Weight | Approx. 50 g | |
- Average TC in specified operating temperature range.
- As far as relevant the standards and rules mentioned above are considered by development and production of our devices. In addition relevant assembly rules are to be considered by installation of our devices in other equipments. For applications with high working voltages, take measures to prevent accidental contact and make sure that there is sufficient distance or insulation between adjacent situated devices.
- Minor deviations possible during interference.
Terminal assignments
Wire cross-section max. 2,5 mm²
| 1 | Input Pt | 5 | Output + |
| 2 | Input Pt | 6 | Output - |
| 3 | Input 3-wire | 7 | Power supply ~ |
| 4 | Input 4-wire | 8 | Power supply ~ |
Product line
| Devices | Order No. | ||||
| Temperature-Transmitter DR 44 P | Pt 100 | DER 44 P - | X | X | |
 |
Input | 0 to +50 °C | 0 | ||
| 0 to +100 °C | 1 | ||||
| 0 to +200 °C | 2 | ||||
| 0 to +300 °C | 3 | ||||
| 0 to +400 °C | 4 | ||||
| -50 to +150 °C | 5 | ||||
| -50 to +100 °C | 6 | ||||
| -50 to +50 °C | 7 | ||||
| further see table | ? | ||||
| Output | 0 to 20 mA | 2 | |||
| 4 to 20 mA | 4 | ||||
| 0 to 5 V | 5 | ||||
| 1 to 5 V | 8 | ||||
| 0 to 10 V | 6 | ||||
| 2 to 10 V | 7 | ||||
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Cross-connector (2 pcs.) for looping through the power supply for up to 10 Tiny Snap, splittable |
DZU 0801 |
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Example: Temperature Transmitter for Pt 100, Input 0 to 200 °C, Output 4 to 20 mA |
DER 44 P - |
2 |
4 |
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