服務(wù)熱線：4007-1100-10
Description
The SBL1 is a large, pressure die cast aluminium housing (IP65) with an integrated sensor for uniaxial inclination measurements.
In addition to the sensor, the box contains a signal conditioner with a 4...20mA, 2-wire output and a separate, highly stable supply voltage for the actual sensor feeding off the current loop. Furthermore, the signal conditioner includes an active low pass filter, whose upper cut-off frequency / settling time can be adjusted to suit the measurement task, an output stage with current limitation, noise voltage filters and a diode bridge for unipolar connection to the current loop. Interference signals caused by unwanted ground currents are eliminated by electrically isolating sensor and signal conditioner from the housing.
Unlike the SB2.., the SBL1 can accommodate larger inclinometers, such as the NG.. series, that have a higher measuring accuracy. A special electronic temperature compensation system can significantly reduce the temperature sensitivity of the implemented sensor.
The compact PG cable gland and compact housing size in combination with the 2-wire connection enable the use of this high quality measuring system in harsh operating conditions.
Application
The SBL1 is suited for taking precise inclination or acceleration measurements under harsh circumstances and returning a 4...20mA output signal. Areas of successful implementation include construction, mining (especially large open pit mining machinery), agricultural machinery, transportation and conveyor systems, ships, operation and automation technology as well as general mechanical engineering.
Technical Specifications
Terminals 3 x 1.5mm2 (2 signal+1 earth)
Cable fixing PG21 (metal with integrated strain relief clamp)
Measuring range, Resolution, etc. dependent on implemented SEIKA sensor
Degree of protection IP65
Mounting orientation any
Measuring planes (N.., NB.. sensor) 3 main housing planes
Measuring plane (NG.. sensor) parallel to housing bottom
Terminal voltage 10V ... 30V
Minimum loop current 2.5mA ... 3.5mA
Maximum loop current 22mA ... 26mA
Output loop current 4...20mA (12mA in sensor zero position)
Adjustable variables zero (12mA), amplification
Maximum load resistance 500 Ohm (at 24 Volt supply voltage)
Operating temperature -40...+85°C
Options: special measuring ranges, calibration protocol
SBL1S
Sensor box for use in particularly harsh operating conditions containing two sensors, one signal conditioner with 4...20mA output, one signal conditioner with 0...5V output and two safety relays for threshold monitoring
SBL1S[+]
SEIKA front page
print version (pdf)
Features
arge, robust pressure die cast aluminium housing (IP65)
angular adjustable, vibration damped 3-point fastening of rigid, 3.2mm thick base PCB
all SEIKA sensors fit the housing and can be installed in different directions of operation
two integrated, independent measuring channels, electrically isolated from each other and the housing and redundant if operating direction is the same
Channel 1
signal conditioner with 4...20mA, 2-wire output
temperature drift compensation
no separate supply voltage necessary
either connection polarity
Channel 2
signal conditioner with 0 ... 5V output
temperature drift compensation
12 or 24 Volt supply voltage
either connection polarity
two separate, individually adjustable safety relay outputs with a separate open and a separate close mechanism each
Both channels
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