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BasicLine BL 520 Temperature Transmitter - BL 520

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The BasicLine BL 520 temperature transmitters provide connection possibilities for most of the common thermocouples and resistance thermometers.

Model Number: BL 520
Data Sheet:

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Product Specification

1.Caution!

Only trained and qualified personnel should install the BasicLine BL 520 temperature transmitters.

Do not connect the device to power supply before it is professionally installed. Do not change the measuring range during operation.

Be sure to observe the national codes and regulations for installation and selection of cables and lines.

You must install a clearly identifiable two-pole circuit breaker between device and mains supply.

Mains supply must be protected by a fuse ≤ 20 A.

2. Intended Use

The BasicLine BL 520 temperature transmitters provide connection possibilities for most of the common thermocouples and resistance thermometers.

When a resistive sensor is connected, 2-, 3-, or 4-wire configuration is automatically recognized at device startup.

Note: When the configuration is changed from 2-wire to 3-wire (or 4-wire) or from 3-wire to 4-wire, this is only recognized after the device's next restart.

The output signal is adjustable to 0 / 4 ... 20 mA, or 0 … 5 / 10 V.

The calibrated range selection is performed using DIP and rotary encoder switches. The device provides a 24 V DC power supply and galvanic 3-port isolation.

Sensor type	(Standard)	Range [°C]
Pt100	(EN 60751)	-200 ... +850
Pt1000	(EN 60751)	-200 ... +850
Connection		2-, 3- or 4-wire (automatic identification,LED signaling)
Resistance range (incl. line resistance)		Temperature measurement: 0 ... 5 kΩ
Max. line resistance		100 Ω
Supply current		Max. 500 µA
Line monitoring		Open circuits
Input error limits		For resistances < 5 kΩ:
		± (50 mΩ + 0.05 % meas.val.)
		for spans > 15 Ω
Temperature coefficient		0.005 %/K of adjusted end value
at the input		(average TC in permitted operating
		temp range, reference temp 23 °C)
Thermocouple input data
Sensor type	(Standard)	Range [°C]
J	(EN 60584-1)	-210 ... +1200
K	(EN 60584-1)	-200 ... +1372
Input resistance		> 10 MΩ
Max. line resistance		1 kΩ
Line monitoring		Open circuits
Input error limits		± (10 µV + 0.05 % meas.val.) for spans
		> 2 mV
Temperature coefficient		0.005 %/K of adjusted end value
at the input		(average TC in permitted operating
		temp range, reference temp 23 °C)
Ref. junction compensation		Internal or external (Pt 100)
Error of external		Via Pt100 for Tcomp= 0 ... 80 °C:
ref. junction compensation		± (80 mΩ + 0.1 % meas.val.)
Error of internal		± 1.5 °C
ref. junction compensation