7 & 14 Channel Low-Noise, High Accuracy,
Thermocouple and mV Expansion Options for the
OMB-LOGBOOK and OMB-DAQBOARD-2000 Series |
| OMB-DBK81, OMB-DBK82, OMB-DBK83, OMB-DBK84 |
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Measures Type J, K, T, E, R, S, B & N Thermocouples as well as Voltage up to ±100mV
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Low Noise, High Accuracy, High Stability 100 kHz Maximum Scan Rate, Compatible with all OMB-LOGBOOK, OMB-DAQBOOK & DAQBOARD Models Operating at Maximum Sampling Rates
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High Noise Immunity
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Open Thermocouple Detection Per Channel
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Over-Voltage Protection
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View related products - Signal Conditioners
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The new OMB-DBK81/82/83/84 are
designed to provide very low noise
thermocouple and milli-volt
measurements, with high accuracy and
very close tracking between channels.
These new models provide
thermocouple accuracy of better than
0.5°C, and noise that is typically less
than 0.2°C p-p, with no digital
averaging required.
The performance of these new
OMB-DBK cards is enabled through
their use of very low-noise amplifiers
on every channel. Built-in cold junction
compensation and software-based
linearization automatically provides
you with quiet and stable temperature
measurements, with no need to deal
with the usual complexities associated
with thermocouple measurements.
All software that supports the
OMB-DAQBOARD-2000 Series and
OMB-LOGBOOK also support these
new OMB-DBK options, providing you
with accurate and stable temperature
readings on every channel. Four
different models are offered so you can
choose the one that best fits your
application.
The OMB-DBK81 provides 7 differential
thermocouple/mV inputs, and installs into
any OMB-LOGBOOK and OMB-DBK
enclosure. The OMB-DBK81 provides
on-board screw-terminals for connection
of thermocouple/ mV signals directly to
the card.
The OMB-DBK82 provides 14 differential
channels of thermocouple/mV inputs, and
is physically taller than other OMB-DBK
cards. The OMB-DBK82 installs into an
OMB-DBK60 where it can be wired
directly to the mini-thermocouple
connector panels. Note that the OMB-DBK82
will not install into a single-height
slot in the OMB-DBK10. Further, the
OMB-DBK82 consumes two expansion
slots in the OMB-DBK41 10-slot
enclosure.
Specifications
System Connector: All OMB-DBK options
have a DB37 male,
which mates with
P1 on the OMB-DAQBOARD-2000,
OMB-LOGBOOK or other OMB-DBK options.
Thermocouple/mV Connector:
OMB-DBK81: Board-mounted screw-terminals
OMB-DBK82: Board-mounted screw-terminals
OMB-DBK83: External pod-mounted
removable screw-terminals
OMB-DBK84: Mini-thermocouple connectors
Input Types: Thermocouple types
J, K, T, E, S, B, N; x100 (voltage)
Inputs:
OMB-DBK81: 7 differential
thermocouple/mV inputs
OMB-DBK82/83/84: 14 differential
thermocouple/mV inputs
Input Voltage Range: +/- 100mV*
Input Impedance: 40M(differential);
20M(single-ended)
Input Bandwidth: 4 Hz
Input Bias Current: 10nA typ
CMRR: 100dB typ
Maximum Working Voltage
(signal + common mode): ±10V
Over-Voltage Protection: ±40V
Power Requirements:
OMB-DBK81:35mA max from ±15V;
2mA max from ±5V
OMB-DBK82: 60mA max from ±15V;
2mA max from ±5V
OMB-DBK83: 60mA max from ±15V;
2mA max from ±5V
OMB-DBK84: 60mA max from ±15V;
2mA max from ±5V
Operating Temperature: 0 to 50°C
(32 to 122 °F)
Voltage Accuracy: ±(0.2% of rdg + 50 mV)
Minimum Resolution:0.1°C for all
thermocouple types
Thermocouple Accuracy: valid for one year,
18 to 28°C
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† Price are shown in RMB.
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Related Links -
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