DBK442-Channel 5B Signal-Conditioning CardOverview ….. 1
Hardware Setup ….. 2Power Considerations ….. 2
Card Configuration ….. 35B Module Connection ….. 3
Terminal Block Connection ….. 4P1 Connection ….. 4
CE Compliance ….. 5
DaqBook/100 Series & /200 Series and DaqBoard [ISA type] Configuration …… 5
DaqBook/2000 Series and DaqBoard/2000 Series Configuration …… 6Software Setup ….. 6mx+b Values for 5B Modules ….. 7
DBK44 – Specifications ….. 7Reference Notes:o Chapter 2 includes pinouts for P1, P2, P3, and P4. Refer to pinouts applicable to yoursystem, as needed.
o In regard to calculating system power requirements, refer to DBK Basics located near
the front of this manual.
Reference Note:
Users of the DBK44 signal-conditioning card may be interested in the DBK207 and DBK207/CJC,
Carrier Boards for 5B Compatible Analog I/O Modules. Each DBK207 and DBK207/CJC board
includes a 100-pin P4 connector for DaqBoard/2000 Series and /2000c Series compatibility, two P1
connectors for analog expansion, a power connection terminal, and 16 signal terminal blocks. Inaddition, the DBK207/CJC board includes CJC (Cold Junction Compensation) for thermocouple
applications. DBK207 and DBK207/CJC can be mounted in Nema-type panels.

Overview
The 2-channel DBK44 allows LogBook or Daq device systems to use any combination of 5B signalconditioning modules. 5B modules can accommodate a variety of signals (low-level thermocouple signals
to strain-gage signals, etc). Configuration options are flexible. You can select the type of signal attachedto each channel. One LogBook or Daq device can support up to 128 DBK44 cards, providing up to 256
isolated, analog input channels.

DBK Option Cards and Modules

877095

DBK44, pg. 1

The LogBook or Daq device scans the DBK44’s channels at the same 10 µs/channel rate as other DBKs
(256 scans in 2.56 ms in a full system). Each user-installed 5B module offers 500 V isolation from thesystem and between channels. The DBK44 has convenient screw-terminal blocks for signal inputs andexcitation outputs (for use with a strain gage or RTD). Cold junction compensators (CJC) are installed andready to use with thermocouple 5B modules. Sockets are provided for AC1362 current-sense resistor
modules.

Hardware Setup
Power Considerations
The DBK44 requires +5 and ±15 VDC from a LogBook, Daq device P1connector, or auxiliary power supply. In some applications, the DBK44 can draw
enough power from the LogBook’s internal power supply via the P1 connector.
However, the 5B power requirements (+5 VDC only) may be greater than theLogBook or DaqBook/DaqBoard can provide (see table).
For applications with more than 4 channels, it may be better to use
the DBK42 instead of the DBK44. The DBK42 is a 16-channel
module with a built-in power supply.
External power can be obtained from any regulated 5 V source or from aTR-4 power supply. External power attaches to the DBK44 via onboard
screw-terminal connections (the Auxiliary Power Input J9 Combicon
terminal at the rear of the board).

5B
Current
Model
Required
5B3030 mA
5B3130 mA
5B3230 mA
5B3430 mA
5B3730 mA
5B38
200 mA
5B39*170 mA
5B4030 mA
5B4130 mA
5B4730 mA* Maximum output load
resistance is 750 Ω

The 5B38 series strain-gage modules with excitation output require an external powersource. Auxiliary power is also necessary in systems equipped with more than one DBK44.
Prior to using auxiliary power, you must select AUXL on the Power Source Select Jumper(J10).

CAUTION
Auxiliary power input must not exceed +5 VDC. DBK44 does not regulate auxiliarypower input.

DBK44, pg. 2877095

DBK Option Cards and Modules

Card Configuration
Up to 128 DBK44s may connect to a LogBook or a Daq device system. Since this is adaisy-chain interface, each module must appear unique and use a different analog input
channel. To configure the card’s channel, you must set the JP1 jumper and theSW1 DIP switch to your chosen channel as follows.
1.

Locate the 16×2-pin header (labeled JP1) near the front of the card. Note the16 jumper locations labeled CH0 through CH15 to match the main channel.

2.

Place the JP1 jumper on the channel you wish to use. Only one jumper isused per card, but up to 8 DBK44s can occupy one main channel and use thesame JP1 setting (but with different SW1 settings).

3.

Locate the SW1 DIP switch that serves as a channel group select switch andcan distinguish up to 8 cards on a channel.

4.

Place the 3 mini switches (CBA) in the position that corresponds to yourchosen channel as shown in the table below. For each JP1 setting, there
are 8 possible SW1 settings to allow two input channels per card).

Channel Pair Determined by JP1 and SW1
JP1Jumper

CBA
000
16-17
32-33
48-49
64-65
80-81
96-97
112-113128-129
144-145
160-161
176-177
192-193
208-209224-225240-241256-257

CH0
CH1
CH2
CH3
CH4CH5CH6CH7CH8CH9CH10CH11CH12CH13CH14CH15

CBA
001
18-19
34-35
50-51
66-67
82-83
98-99
114-115130-131146-147
162-163
178-179
194-195
210-211226-227242-243258-259

CBA010
20-21
36-37
52-53
68-69
84-85
100-101
116-117132-133
148-149
164-165
180-181196-197212-213228-229244-245260-261

SW1 DIP Switch Setting
CBA
CBA
011
100
22-23
24-25
38-39
40-41
54-55
56-57
70-71
72-73
86-87
88-89
102-103104-105
118-119120-121134-135
136-137
150-151
152-153
166-167
168-169
182-183
184-185
198-199200-201
214-215
216-217230-231232-233
246-247248-249262-263264-265

CBA
101
26-27
42-43
58-59
74-75
90-91
106-107122-123138-139154-155
170-171
186-187202-203218-219234-235
250-251266-267

CBA
11 0
28-29
44-45
60-61
76-77
92-93
108-109124-125140-141
156-157
172-173
188-189204-205220-221236-237
252-253268-269

CBA
111
30-31
46-47
62-63
78-79
94-95
110-111126-127
142-143
158-159
174-175
190-191
206-207222-223238-239254-255
270-271

5B Module Connection
Each input of the DBK44 is processed through a user-installed 5B signal-conditioning module. Different
5B modules are used with different transducer and signal sources. To install the modules:
1.

Remove all power from the DBK44.

2.

Match the footprint of the module with the footprint on the circuit board (see figure).

3.

Gently place the module into the footprint, and screw it down.

4.

Record the channel the module was placed in.

DBK Option Cards and Modules

877095

DBK44, pg. 3

When installing current input modules (SC-5B32 series), be sure to install the current-sense resistor(SC-AC-1362 shipped with the SC-5B32) in the resistor socket (J4 for ch 0, J3 for ch 1) near the input
screw-terminal block (see figure).

Terminal Block Connection
WARNING
Shock Hazard! De-energize circuits connected to the DBK44 before changing thewiring or configuration. The DBK44 is designed to sense signals that may carrydangerous voltages.
Input signals (and excitation leads) must be wired to the DBK44 via the 4-contact terminal blocks at theend of the card. These terminal blocks connect internally to their corresponding signal conditioning
module. The terminal blocks accept up to 14-gage wire into quick-connect screw terminals that are labeled
as to their function. Each type of input signal or transducer (such as a thermocouple or strain gage) should
be wired to its terminal block as shown in the figure. Wiring is shown for RTDs, thermocouples, 20 mA
circuits, mV/V connections, and for full- and half-bridge strain gages.

P1 Connection
Reference Notes:
Chapter 2 includes pinouts for P1, P2, P3, and P4. Refer to pinouts applicable to yoursystem, as needed.
The DBK44 attaches to the LogBook’s or Daq Device’s P1 analog I/O connector. Connect the CA-37-x
accessory ribbon cable (with x indicating the number of cards to be connected) from P1 to the DB37
connector at the end of the DBK44 card.
DBK44, pg. 4877095

DBK Option Cards and Modules

Note: A series of interface cables are available to connect up to 128 DBK44s. You can also use a DBK41
10-slot expansion chassis.
DBK44 can be connected to the P1 connector of DBK200, DBK201, DBK202, or DBK203. Connect theCA-37-x accessory ribbon cable (with x indicating the number of cards to be connected) from P1 to theDB37 connector at the end of the DBK44 card.
Note: Interface cables are available to connect up to 128 DBK44s.

CE Compliance
Reference Notes:
Should your data acquisition system need to comply with CE standards, refer tothe CE Compliance section of the chapter Signal Management.

DaqBook/100 Series & /200 Series and DaqBoard [ISA type] Configuration
The DBK44 requires two setup steps in DaqBooks/100 Series & /200 Series devices andDaqBoards [ISA type]—jumpers JP1 and JP4.
1.

If not using auxiliary power, ensure the JP1 jumper is configured for Analog Option Card Use(expanded analog mode).
Note: This default position is necessary to power the interface circuitry of the DBK44 via theinternal ±15 VDC power supply. If using auxiliary power from a DBK32A or DBK33 card,
you must remove both JP1 jumpers. Refer to Power Requirements in the DBK Basics section.
Also refer to the DBK32A and DBK33 sections as applicable.

2.

For DaqBook/100, /112, and /120 only, place the JP4 jumper in the DaqBook or DaqBoard [ISAtype] in single-ended mode. Note that analog expansion cards convert all input signals to singleended voltages referenced to analog common.
Note: The configuration of the JP3 jumper depends on the output range of the 5B module. For
example, a 5B31 volt input module has an output range of -5 to +5 V in bipolar mode. A
5B47 T/C module (output 0 to +5 V) could use bipolar mode, but unipolar mode is more
appropriate.

DBK Option Cards and Modules

877095

DBK44, pg. 5

DaqBook/2000 Series and DaqBoard/2000 Series Configuration
No jumper configurations are required for these 2000 series devices.

Software Setup
Reference Notes:o DaqView users - Refer to chapter 3, DBK Setup in DaqView.
o LogView users - Refer to chapter 4, DBK Setup in LogView.

DBK44, pg. 6877095

DBK Option Cards and Modules

mx+b Values for 5B Modules
The mx+b calculations for most 5B modules are included within LogView software. The table shows them and b values for various 5B modules.
5B Module

EngineeringUnit(s)Isolated Voltage Input (5 V Current Requirement, 30 mA)
SC-5B31-01
1/50mV, V
SC-5B31-02
10mV, V
SC-5B31-03
20mV, V
SC-5B31-04
2/5-1mV, V
SC-5B31-05
2-5mV, V
SC-5B31-06
4-10mV, V
Isolated Wideband Voltage (5 V Current Requirement, 30mA)
SC-5B41-01
1/50V
SC-5B41-02
10V
SC-5B41-03
20V
SC-5B41-04
2/5-1
V
SC-5B41-05
2-5V
SC-5B41-06
4-10V
Isolated Millivolt Input (5 V Current Requirement, 30 mA)
SC-5B30-01
20mV
SC-5B30-02
100mV
SC-5B30-03
200mV
SC-5B30-04
4-10mV
SC-5B30-05
20-50mV
SC-5B30-06
40-100mV
Isolated Wideband Millivolt (5 V Current Requirement, 30 mA)
SC-5B40-01
20mV
SC-5B40-02
100mV
SC-5B40-03
200mV
SC-5B40-04
4-10mV
SC-5B40-05
20-50mV
SC-5B40-06
40-100mV
Isolated Linearized T/C Input (5 V Current Requirement, 30 mA)
SC-5B47-J-01
1520°C
SC-5B47-J-02
80-100°C
SC-5B47-J-03
1000°C
SC-5B47-K-04
2000°C
SC-5B47-K-05
1000°C
SC-5B47-T-06
100-100°C
SC-5B47-T-07
400°C
SC-5B47-E-08
2000°C
SC-5B47-R-09
250+500°C
SC-5B47-S-10
250+500°C
SC-5B47-S-11260+500°C
Isolated RTD Input (5 V Current Requirement, 30 mA)
SC-5B34-01
40-100°C
SC-5B34-02
200°C
SC-5B34-03
400°C
SC-5B34-04
1200°C
SC-5B34-C-01
240°C
SC-5B34-C-02
240°C
SC-5B34-N-01
240°C
Isolated Current Input (5 V Current Requirement, 30 mA)
SC-5B32-01
3.24mA
SC-5B32-02
40mA
Voltage Switch Input
SC-AC-1367
10V

DBK Option Cards and Modules

m Value877095b Value

DBK44, pg. 7

DBK44 – Specifications
Name/Function: 2-Channel 5B Signal Conditioning Card
Module Capacity: 2 “input only” 5B modules
Weight: 0.25 kg (8 oz.) with no modules installed
Cable (optional): CA-37-x
DC Input Fuse: 4 A
Connections:Male DB37 mates via CA-37-1 cable with P1 on the LogBook,
DaqBook, ISA-type DaqBoard*, or Daq PC-Card.
User connections include 8 screw-terminals (4 per channel).
Screw terminations, per channel, are: +EXC, +Vin, -Vin, -EXC
Isolation to Primary Acquisition Device (LogBook or Daq Device):
Input Power: 0 VDC
Signal Inputs: 1500 VDCInput Channel-to-Channel: 500 VDC
Environmental:
Operating Temperature: 0 to 50°C
Humidity: 0 to 80% RH @ 30°C; de-rate 3%/°C
Altitude: 0 to 2000 m*Note: For DaqBoard/2000 Series and /2000c Series boards, the use of a
DBK200 Series P4-to-P1 adapter is required.

DBK44, pg. 8877095

DBK Option Cards and Modules