Balluff MICROPULSE BTL7-A/E1 0-M Series, Manual, Page: 43 / 120

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10.1 Accuracy
The specifications are typical values for the BTL7-A/E… at
24 V DC and room temperature, with a nominal length of
500 mm in conjunction with the BTL-P-1013-4R,
BTL-P-1013-4S, BTL-P-1012-4R or BTL-P-1014-2R
magnet.
The transducer 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
Typical ±10 µm
Sampling rate 4.0 ms
Non-linearity at
Nominal length ≤ 500 mm
Nominal length > 500 mm
±200 µm
±0.04 % FS
Temperature coefficient
1)
≤ 30 ppm/K
Max. detectable velocity 10 m/s
10.2 Ambient conditions
Operating temperature −40°C…+100°C
Storage temperature −40°C…+100°C
Relative humidity < 90%, non-
condensing
Rod pressure rating (when
installed in hydraulic cylinders)
For Ø 8 mm ≤ 250 bar
For Ø 10.2 mm ≤ 600 bar
Shock rating
Continuous shock
per EN 60068-2-27
2)
150 g/6 ms
150 g/2 ms
Vibration
per EN 60068-2-6
2)
(note resonant frequency
of the rod)
20 g, 10…2000 Hz
Degree of protection per
IEC 60529
Cable IP68
2)
10.3 Supply voltage (external)
Voltage, stabilized:
BTL7-_1_ _-…
20…28 V DC
Ripple ≤ 0.5 V
ss
Current draw (at 24 V DC)
BTL7-A… < 40 mA
(with load-free signal
evaluation)
BTL7-E… < 70 mA
Inrush current ≤ 500 mA/10 ms
Reverse polarity
protection
3)
Up to 30 V
Overvoltage protection Up to 30 V
Dielectric strength
(GND to housing)
500 V AC
10.4 Output
BTL7-A… Output voltage
Load current
0…10 V / 10…0 V
≤ 5 mA
BTL7-E… Output current
Load resistance
4…20 mA / 20…4 mA
≤ 500 ohms
Short circuit resistance Signal cable to 36 V
Signal cable to GND
10.5 Input
Programming inputs La, Lb High-active
BTL7-_1_ _-… 20…28 V DC
Overvoltage protection Up to 30 V
1)
Nominal length = 500 mm, magnet in the middle of the measuring range
2) Individual specifications as per Balluff factory standard, resonances
excluded
3) A prerequisite is that no current can flow between GND and 0 V in the
event of polarity reversal.
10
Technical data
BTL7-A/E1 _ 0-M _ _ _ _ -K(8)-SA262-K _ _ /F _ _
Micropulse Transducer - Rod Style