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11.1 Accuracy
The specifications are typical values at DC 24 V and room
temperature, with a nominal length of 500 mm in
conjunction with the BTL-P-1013-4R, BTL-P-1013-4S or
BTL-P-1012-4R magnet or with the BTL2-S-6216-8P-Ex,
BTL2-S-5113-4K-Ex, BTL2-S-4414-4Z-Ex or
BTL2-S-4414-4Z01-Ex float.
The BTL is fully operational immediately, with full accuracy
after warm-up.
For special versions, other technical data may
apply. Special versions are indicated by the
suffix -SA on the part label.
Repeat accuracy
Voltage, typical
Current, typical
±10µm
±5µm
Sampling rate
Dependent on nominal length
At nominal length = 500mm
250µs…5.7ms
500µs
Non-linearity at
Nominal length ≤500 mm
Nominal length > 500 to
≤5500 mm
Nominal length > 5500 mm
±50µm
±0.01% FS
±0.02% FS
Temperature coefficient
1)
≤ 30ppm/K
Max. detectable velocity 10m/s
11.2 Ambient conditions
Ambient temperature
Standard
2)
Extended
3)
, SA418
–40…+80°C
–50…+80°C
Storage temperature –50…+85°C
Humidity <90%, non-condensing
Rod pressure rating (when
installed in hydraulic cylinders)
≤600bar
Shock rating
Continuous shock
per EN60068-2-27
4), 5)
100g/6ms
100g/2ms
Vibration
per EN60068-2-6
4), 5)
12g, 10…2000 Hz
Degree of protection per
IEC60529
IP66, IP68
4), 6)
11.3 Supply voltage (external)
Voltage, stabilized: 10…30VDC
Ripple ≤0.5V
ss
Current draw (at24VDC) ≤150mA
Inrush current ≤ 500mA
Reverse polarity protection
7)
Up to 36V
Overvoltage protection Up to 36V
Dielectric strength
(GND to housing)
500VAC
11.4 Output
BTL7-A… Output voltage
Load current
0…10V and 10…0V
≤5mA
BTL7-C… Output current
Load resistance
0…20mA/20…0mA
≤500Ω
BTL7-E… Output current
Load resistance
4…20mA/20…4mA
≤500Ω
BTL7-G… Output voltage
Load current
–10…10 V and 10…–10 V
≤5mA
Short-circuit resistance Signal cable to 36 V
Signal cable to GND
11.5 Input
Programming inputs La, Lb: High-active, 10 to
30VDC
Overvoltage protection Up to 36V
1) Nominal length=500mm, magnet in the middle of the measuring range
2) See approvals on page 6
3) Prerequisite: Nominal length ≤ 2680 mm.
The device must be activated at ≥–40°C.
4) Individual specifications as per Balluff factory standard
5) Resonant frequencies excluded
6) To maintain the IP68 rating, ensure that the connection at the conduit
opening also meets this standard. Thread sealant should be used on the
conduit opening to ensure protection against moisture ingress. Take
measures to prevent the possibility of internal condensation at the
conduit opening from entering the BTL.
7) A prerequisite is that no current can flow between GND and 0V in the
event of polarity reversal.
Ensure power is limited to ≤ 5W!
11
Technical data
BTL7-A/C/E/G5_ _-M_ _ _ _-J-DEXC-TA12
Magnetostrictive Linear Position Sensor – Rod Style
Type of protection “db” and “ta”
Flameproof enclosure