WBK15

Multifunction Isolated Signal Conditioning ModuleFeatures• Accepts any combination of up to eight
5B isolated input signal conditioningmodules• Attaches to the WaveBook data­acquisition systems• Offers plug-in screw-terminal
blocks for convenient connection of
5B modules• Features built-in cold junction sensing
for thermocouple calibration• Features rugged all-metal construction
for portable applications• Includes a built-in power supply,­operable from 10 to 30 VDC
The WBK15 eight-channel ­multifunction
isolated signal conditioning module allows WaveBook data acquisition ­systems
to accommodate any combination of up toeight optional 5B input signal conditioning modules. Each user-installable signal
conditioning module offers 1500V isolationfrom the system and from other channels.
The WBK15 is available with a wide varietyof modules that accommodate an array ofsignals — from low-level thermocouple
signals to strain gage signals.

The WBK15 accommodates up to eight 5B signal conditioning modules
A single cable connects the WBK15’s
output to the WaveBook analog input
connector. One WaveBook can support up
to eight WBK15 units, providing a totalof 64 isolated analog input channels. TheWaveBook scans the WBK15’s channels at
the same 1 µs/channel rate that it scans
all WBK Series analog expansion and­signal conditioning cards, allowing it to­measure all channels of a fully configured
72-channel system in 72 µs.

Powering the WBK15. The WBK15 canobtain its input power from a numberof sources: an included AC adapter, an
optional DBK30A rechargeable battery/­excitation module, or directly from a
12 VDC source, such as an automobilebattery. The WBK15 has a built-in DC/DC
converter capable of powering a full complement of 5B modules — even when every
channel is fully outfitted with strain gage
modules with bridge excitation.

WBK15 Isolated Signal Conditioning Module Block Diagram

Current
sense resistor
Plug-interminal
block
E-5B modules selected from a choice of types areplaced into the WBK15 module

In Lo

BNC

3

17

516

20

1

CJC
sensorMux

23

4E+BNC+ 5V

22

6

In Hi

Analogexpansioninterface18

2

Bufferedlow-passfilter

WBK
expansioninterface

195B-typesignal conditioningplug-in module

To
WaveBook

Channel 1 (typ of 8)

Measurement Computing(508) 946-5100

1

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WBK15Specifications & Ordering Information
Configurability. The WBK15 offers exceptionally wide-ranging configurability. For
instance, it permits you to individually
select the type of signal attached to every
channel. Also, there is no limit to the typeand combination of signals that can be
attached to the WBK15.
Signal Connections. Plug-in screw-terminal
blocks provide a convenient way of connecting analog signals to the WBK15. Eachblock contains four terminals per channel,
providing access to both the 5B modules’
input and excitation-output features.

Measurement Computing

Specifications

Connector: 2 BNC connectors, mate with expansion signal input on the WaveBook; two 15-pin
connectors, mate with expansion signal control
on the WaveBook
Module Capacity: Eight 5B modules (optional)
Input Connections: Removable 4-terminal plugs
Power Requirements: 10 to 30 VDC or 120/240 VAC
with included adapter
With 8 thermocouple-type modules:		 0.20A @ 15 VDCWith 8 strain gage-type modules:		 0.75A @ 15 VDC
Cold-Junction Sensor: Standard per channel
Shunt-Resistor Socket: One per channel for current
loop inputs
Isolation
Signal Inputs to System: 1500 VDC		 (600 VDC for CE compliance)
Input Channel-to-Channel: 1500 VDC		 (600 VDC for CE compliance)
Dimensions: 285 mm W x 221 mm D x 36 mm H
(11” x 8.5” x 1.375”)
Weight: 1.8 kg (4 lbs) with no modules installed
Vibration: MIL STD 810, category 1(508) 946-5100

2

Ordering Information
Description
8-channel multi-purpose signal
conditioning module

Part No.
WBK15Accessories & Cables
Rack mount kit
5-pin male DIN to 5-pin male DIN
provides convenient connection
between WaveBook power input
connectors and DBK30A (alsoused to daisy-chain input powerto expansion modules)
5-pin DIN to automobile cigarette
lighter power cable

RackDBK2

CA-115
CA-116

Product Compatibility✔ WaveBook

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