www.balluff.com 17english
6 
Calibration procedure
The BTL can be programmed with a calibration device (see 
Section 6.1) or with the calibration box (see 
Programming inputs).
6.1  Calibration device
The calibration device (see Accessories on page29) is 
an additional device for calibrating the BTL.
Use calibration device
  DANGER
Explosions
Opening the housing can result in sparks which can trigger 
explosions in explosive atmospheres.
 ► Do not open housing when an explosive atmosphere 
may be present!
Automatic deactivation!
If the buttons on the calibration device are not 
pressed for approx.10min, 
programming mode is automatically ended.
1.  Unscrew and remove housing cover.  
2.  Slide calibration device into place.  
3.  Program BTL (see Sections 6 to 9).  
4.  Remove calibration device.
5.  Re-install the housing cover flush and tighten to 
33…40Nm (25…30ft∙lb). Tighten secondary retaining 
screws (ATEX).
6.2  Programming inputs
Instead of the calibration device, the programming inputs 
may also be used for setup:
–  La corresponds to the blue button
–  Lb corresponds to the gray button
–  A programming input at 10 to 30V corresponds to 
activation (high active).
The Balluff BTL7-A-CB02-K calibration box can be used 
for this (see Accessories on page29).
Automatic deactivation!
If no signals are transmitted via the 
programming inputs for approx.10min, 
programming mode is automatically ended.
YE
GY
PK
RD
GN
BU
BN
WH
YE
GY
PK
RD
GN
BU
BN
WH
Fig. 6-1:  Connecting the BTL7-A-CB02-K calibration box
BTL
Calibration box
Supply
8-port luster terminal
Adapter cable with 
connector (luster 
terminal)
6-pin
8-pin
BTL7-A/C/E/G5_ _-M_ _ _ _-J-DEXC-TA12
Magnetostrictive Linear Position Sensor – Rod Style
Type of protection “db” and “ta”
Flameproof enclosure