PHYWE Cobra4 Sensor-Unit Electricity User manual

1
www.phywe.com, © All rights reserved 12644.00 / 4808
Operating instruct
i
ons
Cobra4 Sensor-Unit Electricity, ± 6 A, ± 30 V 12644.00
PHYWE Systeme GmbH & Co. KG
Robert-Bosch-Breite 10
D-37079 Göttingen
Phone [phone]
Fax [phone]
E-mail [e-mail]
Fig. 1: 12644.00 Cobra4 Sensor-Unit Electricity
The unit complies with
the corresponding EC
guidelines.
CONTENTS
1 SAFETY PRECAUTIONS
2 PURPOSE AND CHARACTERISTICS
3 FUNCTIONAL AND OPERATING ELEMENTS
3.1 Operating elements
3.2 Measurement inputs
4 NOTES ON OPERATION
5 HANDLING
5.1 Putting Cobra4 Sensor-Unit Electricity to use
6 TECHNICAL SPECIFICATIONS
7 PARTS SUPPLIED
8 NOTES ON THE GUARANTEE
9 WASTE DISPOSAL
1 SAFETY PRECAUTIONS
• Carefully read these operating instructions completely
before operating this instrument. This is necessary to
avoid damage to it, as well as for user-safety.
• Only use the instrument for the purpose for which it was
designed.
• Only use the instrument in dry rooms in which there is no
risk of explosion.
• Protect Cobra4 Sensor-Unit Electricity from dust, mois-
ture and vapours. Use a slightly moist lint-free cloth to
clean the instrument. Do not use aggressive cleaning
agents or solvents.
• Take care that no liquid penetrates in through the hous-
ing openings, as such penetration would result in dam-
age to Cobra4 Sensor-Unit Electricity.
• Only use the experimental set-up for the purpose for
which it is intended.
• Do not open up the instrument.
• Only connect the data output of Cobra4 Sensor-Unit
Electricity to the measured data recording instruments
specifically intended for it.
• The present-day state of software development makes it
impossible to guarantee that a product is free of faults.
PHYWE Systeme GmbH & Co. KG therefore does not
take on any liability for damages that occur during the
installation or the use of the instrument.

2
www.phywe.com, © All rights reserved 12644.00 / 4808
2 PURPOSE AND CHARACTERISTICS
Cobra4 Sensor-Unit Electricity contains 2 sensors that simul-
taneously measure current/voltage data.
According to the type of application, Cobra4 Sensor-Unit
Electricity can be connected to one of the following measured
data recording instruments and the current/voltage data be
passed to it.
• a Cobra4 Wireless-Link (12601.00) for data transfer to a
computer by wireless,
• a Cobra4 USB-Link (12610.00) for data transfer to a com-
puter via a USB-cable,
• a handheld Cobra4 Mobile-Link instrument (12620.00).
The interface to measured data recording instruments is on
the front side of the Sensor-unit, whereby mechanically se-
cure engagement is ensured by a locking mushroom and a
hole.
3 FUNCTIONAL AND OPERATING ELEMENTS
3.1 Operating elements
Cobra4 Sensor-Unit Electricity has no manual operating ele-
ments. Operation of it is carried out via a handheld Cobra4
Mobile-Link or, in the case that it is connected to a Cobra4
USB-Link or a Cobra4 Wireless-Link, via a computer. The
connection between the Sensor-Unit and any one of the three
measured data recording instruments is active as soon as it
is made.
3.2 Measurement inputs
The safety sockets for the measurement of current and volt-
age are on the top side of the Sensor-unit.
The inputs for current and voltage are potential-free up to
100V.
The potential on the input sockets against device earth (black
earthing sockets) is not to exceed 50V.
The inputs are electronically overload-protected.
4 NOTES ON OPERATION
This Cobra 4 Sensor-Unit Electricity fulfils all of the technical
requirements that are compiled in current EC guidelines. The
characteristics of this product qualify it for the CE mark.
This instrument is only to be put into operation under special-
ist supervision in a controlled electromagnetic environment in
research, educational and training facilities (schools, universi-
ties, institutes and laboratories).
This means that in such an environment, no mobile phones
etc. are to be used in the immediate vicinity. The individual
connecting leads are each not to be longer than 2 m.
The instrument can be so influenced by electrostatic charges
and other electromagnetic phenomena (HF, bursts, indirect
lightning discharges) that it no longer works within the given
specifications. Carry out the following measures to reduce or
eliminate the effect of such disturbance: Ensure potential
equalization at the PC (especially with Laptops). Use screen-
ing. Do not operate high frequency emitters (e.g. radio
equipment or mobile radiotelephones) in the immediate vicin-
ity. When a total failure of the instrument occurs, unplug it
and plug it back in again for a reset.
5 HANDLING
This section describes how to use the Sensor-Unit and re-
cord force data. To avoid failure or improper operation,
please read carefully through this section.
5.1 Putting Cobra4 Sensor-Unit Electricity to use
Please make sure that the current version of measure is in-
stalled on your PC.
Download free of charge via:
www.phywe.com … software … measure
measure main program
measure module Cobra4
Alternatively, the software update can be performed with the
measure DVD.
Connect Cobra4 Sensor-Unit Electricity to one of the three
measured value recording instruments suitable for it via the
engaging 15-pin plug connector; The Sensor-unit is ready for
use after a brief starting phase (self-calibration), as the volt-
age is supplied via the measured data recording instrument.
More detailed information on the control of the measured
data recording instruments is given in their operating instruc-
tions.
6 TECHNICAL SPECIFICATIONS
(Typical for 25°C)
Operating temperature range 5... 40°C
Relative humidity < 80%
Sensors
Voltage
Measuring range:
Resolution
Intrinsic resistance
-30...30 V
15 mV
1 MΩ
Current
Measuring range:
Resolution
Intrinsic resistance
-6...6 A
3 mA
33 mΩ
Max. scanning rate 140 kHz
Connector Sub-D-15-pin
Dimensions (L x W x H) 110 x 70 x 30 mm
Weight: 100 g
7 PARTS SUPPLIED
The extent of delivery is as follows:
• Cobra4 Senor-Unit Electricity 12644.00
• Operating Instructions

3
www.phywe.com, © All rights reserved 12644.00 / 4808
8 NOTES ON THE GUARANTEE
We guarantee the instrument supplied by us for a period of
24 months within the EU, or for 12 months outside of the EU.
Excepted from the guarantee are damages that result from
disregarding the Operating Instructions, from improper han-
dling of the instrument or from natural wear.
The manufacturer can only be held responsible for the func-
tion and technical safety characteristics of the instrument,
when maintenance, repairs and alterations to the instrument
are only carried out by the manufacturer or by personnel who
have been explicitly authorized by him to do so.
9 WASTE DISPOSAL
The packaging consists predominately of environmentally
compatible materials that can be passed on for disposal by
the local recycling service.
Should you no longer require this product,
do not dispose of it with the household
refuse.
Please return it to the address below for
proper waste disposal.
PHYWE Systeme GmbH & Co. KG
Abteilung Kundendienst (Customer Service)
Robert-Bosch-Breite 10
D-37079 Göttingen
Phone [phone]
Fax [phone]