Balluff BTL7-A5-M Series, User Manual

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10.1 Accuracy
The specifications are typical values at 24 V DC and room
temperature, with a nominal length of 500 mm in
conjunction with the BTL-S-3112-4Z 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
Typical ±10 µm
Sampling rate
Dependent on nominal length
At nominal length = 500 mm
250 µs to 2 ms
500 µs
Non-linearity at
Nominal length ≤ 500 mm
Nominal length > 500 mm
±50 µm
±0.01% FS
Temperature coefficient
1)
≤ 30 ppm/K
Velocity detectable max. 10 m/s
10.2 Ambient conditions
Ambient temperature
2)
–40 °C…+85 °C
Process temperature
3)
≤ 130 °C
Storage temperature –40 °C…+100 °C
Relative humidity < 90%,
non-condensing
Pressure rating (BTL rod) ≤ 300 bar
Pressure rating (float) see Tab. 11-1
pH values
Process media 2…13.2
Cleaning media 1.6…13.2
(1.6…2 for ≤ 20 min)
Restrictions on process and
cleaning media
conditionally resistant to
chloride corrosion
Degree of protection per
IEC 60529
IP67
10.3 Dimensions, weights
Rod diameter 10.2 mm
Nominal length ≤ 2500 mm
Weight (depends on length) Approx. 2 kg/m
Housing material Stainless steel
Flange material Stainless steel
Rod material Stainless steel
Rod wall thickness 2 mm
Housing mounting 1 1/2" Tri-Clamp per
SSI 3A standard 74-06
and seal
BAM SE-XA-002-D38,
1-S (see Accessories on
page 20)
10.4 Supply voltage (external)
Voltage, stabilized 10…30 V DC
Residual ripple ≤ 0.5 V
pp
Current draw (at 24 V DC) ≤ 120 mA
Inrush current ≤ 500 mA
Reverse polarity protected 4) to 36 V
Overvoltage protection to 36 V
Dielectric strength (GND to
housing)
500 V AC
10.5 Output
BTL7-A… Output voltage
Load current
0…10 V and 10…0 V
≤ 5 mA
BTL7-C… Output current
Load resistance
0…20 mA/20…0 mA
≤ 500 Ω
BTL7-E… Output current
Load resistance
4…20 mA/20…4 mA
≤ 500 Ω
Short-circuit resistance Signal cable to 36 V
Signal cable to GND
10.6 Input
Programming inputs La, Lb 10…30 V DC,
high-active
Overvoltage protection to 36 V
1) Nominal stroke = 500 mm, float in middle of measuring range
2)
Ambient temperature: maximum permissible temperature at the BTL
housing.
3)
Process temperature: maximum permissible temperature of the rod below
the flange (with media contact).
Certain production processes require e.g. sterilization at 120 °C…130 °C
for 0.5…1 hours (see Tab. 11-1).
4)
A prerequisite is that no current can flow between GND and 0 V in the
event of polarity reversal.
10
Technical data
BTL7-A/C/E5 _ _ -M _ _ _ _ -SF-F _ _
Magnetostrictive Linear Position Sensor – Rod Style