USB-AD12f
Page 8
6
Important notes for using the USB-AD12f
•
The device is only suitable for extra-low voltages - please observe the relevant regulations! For reasons relating to
EMC, it must only be used in closed PC housings. ESD voltages at open lines may cause malfunction.
•
Only use non-solvent detergents for cleaning. The product is designed to be maintenance-free.
•
Signal cables are connected at the 37-pin or 15-pin D-Sub female connector – preferably use shielded cables. For
best possible interference suppression, connect shield at one end only. Close open inputs if necessary.
•
The device ground and the chassis are electrically connected to the chassis of the PC, which is usually also
connected to ground. Be sure to avoid ground loops since they will cause measuring errors!
•
PCs (notebooks) which are not grounded often produce high potentials to earth at the USB socket so that safe
operation cannot be guaranteed. In this case, connect the measuring system to earth.
•
The gain is adjusted to even values. Therefore, only 4000 values (for 12 bit) of the full range of the converter are
used. As a result, the measuring ranges are slightly larger (e.g.
±
10.24V) than the indicated measuring ranges so
that overranges can be recognized. The AD converter of the USB-AD12f has a code noise of up to
±
1 LSB.
•
The device must not be used for safety-relevant tasks. With the use of the product, the customer becomes
manufacturer by law and is therefore fully responsible for the proper installation and use of the product. In the case
of improper use and/or unauthorized interference, our warranty ceases and any warranty claim is excluded.
Do not dispose of the product in the domestic waste or at any waste collection places. It has to be either duly
disposed according to the WEEE directive or can be returned to bmcm at your own expense.
7
Technical data
(typical at 20°C, after 5min., +5V supply)
•
Analog inputs
Channels // Resolution // Sampling rate:
16 single-ended // 12 bit // max. 20kHz total sampling rate*
Measuring range // Accuracy // Noise:
±
10V //
±
5mV //
±
1 LSB
Surge protection:
max.
±
35V (when turned on),
±
20V (when turned off), max.
±
20mA in total of all input channels!
Input resistance // Input capacity:
1M
Ω
(with PC turned off: 1k
Ω
) // 5pF
Zero shift // Gain drop:
±
50ppm/
°
C //
±
50ppm/
°
C
Frequency accuracy // Frequency drift:
max.
±
50ppm // max.
±
50ppm/
°
C
* The total sampling rate is the sum of the sampling rates of the individual used channels (e.g. if 4 channels are scanned with 5kHz, the total
sampling rate adds up to 20kHz).
•
Analog outputs
Voltage range // Output current:
1 voltage output with
±
5V // 1mA max.
Resolution // Accuracy:
12 bit // typ.
±
4 LSB, max.
±
8 LSB
Zero shift // Gain drop:
±
50ppm/
°
C //
±
50ppm/
°
C
•
Digital inputs/outputs
Channels // Level:
4 input and 4 output channels // CMOS/TTL compatible (low: 0V..0.7V; high: 3V..5V)
Current pick-up per output pin:
1mA (with app. 4V level), max. 2.5mA (with app. 3V level)
Surge protection:
max.
±
5.5V, protected with 1k
Ω
, max. max.
±
20mA in total of all channels!
Counter:
use DIn 1 as counter input: 100kHz, 16 bit, 0..5V input voltage
•
General data
Power supply:
+4.5V..+5.5V from USB connection to the PC, max. 100mA
USB interface:
USB 2.0 compatible (full speed)
Connections analog:
all channels at a 37-pin D-Sub female at the device front
Connections digital:
all channels at a 15-pin D-Sub female at the device back
CE standards:
EN61000-6-1, EN61000-6-3, EN61010-1; for decl. of conformity (PDF) visit
RoHS and WEEE compliant // WEEE Reg.-No. DE75472248
Max. permissible potentials:
60V DC acc. to VDE
, max. 1kV ESD on open lines
Temperature ranges // Relative humidity:
operating temp. 0..70
°
C, storage temp. –25..+85
°
C // 0-90% (not condensing)
Dimensions // Protection type:
167 x 113 x 30 mm
3
// IP30
Delivery:
device in aluminum housing, 1m USB connection cable, "Software Collection" CD, description
Available accessories (optional):
demo board ZU-DBD, DIN rail set ZU-SCHI, current shunt ZU-CS250R,
connecting cables ZUKA37SB, ZUKA37SS, 37-pin D-Sub plugs ZU37ST, ZU15ST,
connector boards ZU37BB/CB/CO, waterproof housing ZU-PBOX-PG
Warranty:
2 years from date of purchase at bmcm, claims for damages resulting from improper use excluded
•
Software
Software on CD (included):
ActiveX Controls LIBADX (hardware independent) for programming on Windows
®
7/XP;
LIBAD4 SDK for C/C++ programming on Windows
®
7/XP, Mac OS X, Unix (FreeBSD, Linux);
trial version of the measuring software NextView
®
4 to test and operate the hardware
NextView
®
4 (optional):
professional software (versions: Professional, Lite) for the acquisition and analysis of measurement
data on Windows
®
7/XP
Manufacturer: BMC Messsysteme GmbH. Subject to change due to technical improvements. Errors and printing errors excepted. Rev. 6.0
12/19/2012
