1. SURETECH Instruments Newsletter March 2016
1
SURE Engineering keeps you up to date with Electrical Sensing and Safety Equipment
March 2016
SURETECH Instruments
are manufactured by SURE Engineering
March 2016
SURETECH showcases our South African designed and manufactured range of
transducers and sensors - now available for your everyday tasks of measuring
electrical parameters such as voltage, current, kW, kVA, kVARs, power factor,
frequency, kWH etc.
Leading edge Rogowski Current Sensor for measuring
electrical parameters
RCS General Features:
• Moulded in solid resin for ruggedness,
reliability, long life, stability and easy
application
• Rubberised strain relief
• Coaxial cable tail provides interface to
integrator
• BNC connector available as flying lead OR
panel mount, OR none
• Accuracy 0.5%
• Standard cable tail length: 300mm (other
lengths available on request)
• Electrostatic shielded to operate in high dv/dt
applications
• Split-core versions are available, but are more
expensive and generally less accurate
• Insulation voltage is 1000 volts standard,
higher available on order
• RCS sensors can be supplied with Rogowski
signal processing or stand alone
• Galvanic isolation from HV source
2. SURETECH Instruments Newsletter March 2016
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Rogowski Current Sensor :
SURETECH RCS sensors can be used in a wide range of measurement
applications, including power
frequencies, high frequency and pulse applications, such as measuring gate current
on SCRs and GTOs,
IGBTs etc in power electronics drive systems
SURETECH RCS bandwidth is very wide extending well beyond 1MHz. Rogowski
technology does not respond
to DC (zero output at zero frequency input), but the sensors are very useful to
measure the AC current
components on a DC line
SURETECH RCS sensors have been value engineered for cost effectiveness, even
in applications that require
sensing points to be installed for later maintenance / monitoring; (without installing an
integrator at every
sensor). This feature is extremely useful to improve maintainability in motor drives
and power electronic
systems
SURETECH RCS sensors are available in various formats, sizes, insulation levels,
bandwidths etc
Everyone needs TRANSDUCERS for measuring electrical parameters
Transducer General Features:
• Standard transducer enclosure for simple
mounting (125mmx70mmx117mm)
• Flexible enclosure sizes are also available for
user required number of channels
• Standard screw terminals for easy and reliable
connections
• Transient suppression on inputs and outputs
• Wide selection of input and output options (tell
us what your needs are)
• Wide range of auxiliary PS options
• Inputs, outputs, and auxiliary power supply are
galvanically isolated
• DC voltage, or DC current outputs available
(enquire)
• Backup to provide you support for design,
applications information, installation,
maintenance
3. SURETECH Instruments Newsletter March 2016
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Transducer Specifications: (enquire for different configurations)
TYPE SYSTEM MODEL INPUTS OUTPUTS AUX PS ACCURACY
CURRENT Single
phase
45-65Hz
TRD/1Ph/I 0-5 A AC
0-10A AC
0-20A AC
0-5V DC
0-10V DC
0-20 mA
4-20 mA
90-260 VAC Class 0.5
CURRENT 3 phase
45-65Hz
(4
channel
also avail)
TRD/3Ph/I 0-5 A AC
0-10A AC
0-20A AC
0-5V DC
0-10V DC
0-20 mA
4-20 mA
90-260VAC Class 0.5
VOLTAGE Single
phase 45-
65Hz
TRD/1Ph/V 0-110VAC
0-220VAC
0-1kV AC
0-5V DC
0-10V DC
0-20 mA
4-20 mA
90-260VAC Class 0.5
VOLTAGE 3 phase
45-65Hz
TRD/3Ph/V 0-110VAC
0-220VAC
0-1kV AC
0-5V DC
0-10V DC
0-20 mA
4-20 mA
90-260VAC Class 0.5
KVA 3 phase
4 wire
TRD/3Ph/V 0-110VAC
0-220VAC
0-1kV AC
0-5V DC
0-10V DC
0-20 mA
4-20 mA
90-260VAC Class 0.5
If you would like to see ALL the SURETECH
Instruments, then our latest PRODUCT
CATALOGUE is available on our website.
Click here to access it or email Erica at
en@suretech.co.za and she will send you a
copy.
