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the smart approach to instrumentation
TM
Temperature & Voltage Scanning Instruments
TempScan/1100
TM
Measures thermocouples, volts, &
RTDs at up to 960 channels/s
Accepts optional scanning modules
for measuring thermocouples, RTDs,
or DC volts
Expandable up to 992 channels
MultiScan/1200
TM
Measures isolated temperature, DC
volts, AC volts, & waveforms in one
compact instrument
Scans thermocouples & DC volts at
up to 147 channels/s
Single-channel burst mode for digitiz-
ing waveforms at rates up to 20 kHz
Two scanning modules available for
measuring 24 channels of thermo-
couples/volts or high voltage, respectively
Expandable up to 744 channels
Common Features
IEEE 488 & RS-232/422 interfaces
32 TTL digital alarm outputs & 8 TTL-
compatible digital inputs
Custom thermocouple types for user-
defined linearization tables
Two programmable scan rates for:
-
pre-trigger & post-trigger sampling
-
accelerated sampling on-event
detection
128 Kreadings of memory, expand-
able up to 4 Mreadings
Built-in real-time clock:
-
synchronizes acquisition to time
of day
-
provides time & date stamping for
trend monitoring
Software
(see p. 227)
ChartView
TM
, an Out-of-the-Box
TM
data
logging application for effortless setup,
acquisition, & real-time display
DIAdem
-View, for post-acquisition
viewing of data files
ScanCal
TM
, calibration software
LabVIEW
MultiScan/1200
Measurement Parameters
A/D resolution
16 bit w/oversampling
16 bit w/oversampling
Accuracy (w/J thermocouple)
0.5
C
0.5
C
Thermocouples supported
J,K,T,E,R,S,B,N
J,K,T,E,R,S,B,N
RTD
--
DCV
ACV
--
Channel-to-channel isolation
10V
500V or 200V
Channel-to-system isolation
500V
500V
AC line rejection
Scanning Parameters
Switching technology
solid state multiplexers
mechanical relays
Max scan rate
960 channels/s
147 channels/s
Max single-channel scan rate
60 Hz
20 kHz
Min channel configuration
32 channels
24 channels
Max channel configuration
992 channels
744 channels
Data Handling
Built-in memory
256 Kbyte
256 Kbyte
Max memory with expansion
8 Mbyte
8 Mbyte
IEEE 488 interface
RS-232 interface
RS-422 interface
Time and date stamping
Triggering
Digital trigger input
Analog trigger input
Trigger on time of day
Pre-trigger scan rate
programmable
programmable
Post-trigger scan rate
programmable
programmable
Digital Inputs
8
8
Programmable Alarm Outputs
32
32
Software
ChartView
included
included
LabVIEW drivers
DASYLab drivers
Hardware Options
32-ch TC scanning card
TempTC/32B
--
32-ch voltage scanning card
TempV/32B
--
16-ch RTD scanning card
TempRTD/16B
--
24-ch TC/voltage scanning card
--
MTC/24
24-ch high voltage scanning card
--
MHV/24
2-slot expansion chassis
Exp/10A
Exp/10A
10-slot expansion chassis
Exp/11A
Exp/11A
TempScan/1100
Temperature Series Selection Guide
The TempScan/1100 and MultiScan/1200 offer high-speed temperature and voltage
measurement in compact, 19-in. rack-mountable enclosures
TempScan/1100
TM
& MultiScan/1200
TM
High-Speed Temperature & Voltage
Scanning Instruments
*
UPDATED: 3/29/01
215
Q U I C K F I N D
the smart approach to instrumentation
TM
Temperature & Voltage Scanning Instruments
tel: 440-439-4091
fax: 440-439-4093
sales@iotech.com
www.iotech.com
The TempScan/1100 and MultiScan/1200 are
high-speed, compact, rack-mountable instru-
ments that measure up to 992 or 744 channels
of temperature or voltage, respectively.
Because of their unique architecture, both
instruments offer unrivaled low cost per
channel. They connect to a computer via
IEEE 488, RS-232/422, or Hayes-compatible
modem and can be disconnected from the
PC for stand-alone operation.
TempScan/1100
The TempScan/1100 is well suited for
temperature and lower-voltage measure-
ment because its solid state scanning pro-
vides temperature readings at speeds up
to 960 channels/s, an important feature
in applications that require monitoring
of tens or hundreds of channels.
MultiScan/1200
The MultiScan/1200 is ideal for tempera-
ture and voltage measurements that re-
quire more channel-to-channel isolation
than the TempScan/1100 can offer. The
unit provides 500V of channel-to-chan-
nel isolation for voltage and 200V of chan-
nel-to-channel isolation for thermo-
couples. The MultiScan/1200 uses relays
to provide isolation and to scan thermo-
couples and volts at up to 147 channels/s.
The unit can also digitize waveforms on a
single channel at up to 20 kHz.
TempScan/1100
TM
& MultiScan/1200
TM
Temperature & Voltage Instruments
The TempScan/1100 and MultiScan/1200 include ChartView Out-of-the-Box
TM
software,
a Microsoft Windows application that enables measurements without programming
Software
The TempScan/1100 and MultiScan/1200 include ChartView, one of IOtech's
Out-of-the-Box
TM
, Windows
-based setup and acquisition applications. ChartView provides
a graphical spreadsheet-style user interface that lets you easily configure your hardware,
acquisition, and display parameters. Compatible with Windows
3.x/95/2000/NT,
ChartView features a no-programming approach that enables data collection and display
within minutes of taking your TempScan/1100 or MultiScan/1200 Out-of-the-Box
TM
. For
more information about ChartView, see p. 228.
In addition to ChartView data-logging software, every TempScan/1100 and
MultiScan/1200 also ships with DIAdem
-View, a post-acquisition data-review pro-
gram, and ScanCal
TM
, an application that automates instrument calibration. For more
information about DIAdem-View, see p. 198.
When combined with a Net232 Ethernet interface, optional ScanServer
TM
** software
(see p. 240) permits access to any number of TempScans or MultiScans from all popular
SCADA/HMI applications, such as those from Wonderware
and Intellution
. ScanServer
supports all OPC/DDE-compliant environments, including Microsoft
Excel.
Free software drivers are also available for a wide range of programming environments,
including LabVIEW
* for Windows
.
* IEEE-488 and RS-232 support
** Contact factory for availability
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fax: 440-439-4093
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the smart approach to instrumentation
TM
Temperature & Voltage Scanning Instruments
Scanning Modules
IOtech's TempScan/1100 and MultiScan/1200
eliminate the need for external signal
conditioning, multiplexers, and custom
cables, thereby saving you both time and
money. Their user-installable scanning
modules provide all required signal
conditioning and amplification.
The units' scanning modules contain
screw-terminal sockets for quick and easy
input connections. The modules slide into
a metal, shielded enclosure within the
TempScan/1100 or MultiScan/1200, keep-
ing noise to a minimum and maintaining
a constant internal temperature.
When equipped with the Exp/10A or
Exp/11A (p. 217) expansion chassis, the
TempScan/1100 and MultiScan/1200
can accept multiple scanning modules,
allowing you to create systems of up to
992 channels (TempScan/1100) and 744
channels (MultiScan/1200).
TempScan/1100
TM
& MultiScan/1200
TM
Scanning Modules
TempScan/1100 Modules
MultiScan/1200 Modules
Applications
Temperature
--
Low voltage
--
High voltage
--
No. of channels
24
24
Scanning Modules
MTC/24
MHV/24
MultiScan/1200 Scanning Module Selection Guide
TempTC/32B TempRTD/16B TempV/32B
Applications
Temperature
--
Low voltage
--
--
High voltage
--
--
--
No. of channels
32
16
32
Scanning Modules
TempScan/1100 Scanning Module Selection Guide
The TempScan/1100 is supported by three
solid-state scanning modules including:
TempTC/32B Thermocouple Scanning
Module. The TempTC/32B thermocouple
scanning module contains 32 differential
input channels, each of which may be con-
figured for thermocouple types J, K, T, E, R,
S, B, and N, or for a
100 mV input. Mea-
surements may be designated in units of C,
F, K, R, or volts.
TempRTD/16B RTD Scanning Module.
The TempRTD/16B scanning module sup-
ports 16 channels of 3- or 4-wire RTDs.
Measurements may be designated in units
of C, F, K, or R.
The MultiScan/1200 can accept one of
two available scanning modules, each of
which features 24 input channels. These
scanning modules include:
TempV/32B Voltage Scanning Module. The
TempV/32B scanning module contains 32
differential input channels and is capable of
measuring voltage with programmable ranges
of
10V,
5V,
1V, and
100 mV.
MTC/24 Thermocouple/Volt Scanning
Module. The MTC/24 provides 24 iso-
lated differential input channels, and
per-channel programmability for ther-
mocouple types J, K, T, E, R, S, B, and N,
or for
10V,
5V,
1V, and
100 mV
inputs. Channel-to-channel isolation is
200 VDC peak.
MHV/24 High-Voltage Scanning
Module. The MHV/24 provides 24 differ-
ential voltage-input channels, and per-
channel programmability for
250V,
25V, and
2.5V. Channel-to-channel
isolation is 500 VDC peak.
217
Q U I C K F I N D
the smart approach to instrumentation
TM
Temperature & Voltage Scanning Instruments
tel: 440-439-4091
fax: 440-439-4093
sales@iotech.com
www.iotech.com
TempScan/1100
TM
& MultiScan/1200
TM
Expansion Architecture
The TempScan/1100 and MultiScan/1200 can each accept one
scanning module, which provides all of the required signal condi-
tioning. If your application demands more channels than are
available on a single module, you can use either the 2-slot Exp/10A
or the 10-slot Exp/11A expansion chassis. Multiple Exp/10A and
Exp/11A chassis can be daisy chained to a TempScan/1100 or
MultiScan/1200, providing up to 30 additional slots. Regardless of
the number of expansion chassis connected, there is only one link
to the computer, via its IEEE 488 or serial interface. As a result, the
TempScan/1100 or MultiScan/1200 appears to the PC as one
unified multichannel instrument.
TempScan/1100 and
MultiScan/1200 Expansion
The TempScan/1100 and MultiScan/1200 instruments can each
control up to 15 Exp/10A two-slot expansion chassis. The
Exp/10A's form factor is identical to that of either instrument.
When attached to the TempScan/1100, the Exp/10A is config-
urable for 32 or 64 input channels, providing a total expansion
capacity of up to 992 channels. When attached to the
MultiScan/1200, the Exp/10A is configurable for 24 or 48 input
channels, providing a total expansion capacity of up to
744 channels.
For TempScan/1100 systems consisting of more than 96
channels, the 10-slot Exp/11A expansion chassis provides an
economical and convenient solution. One Exp/11A provides
up to 320 input channels in a compact and convenient
enclosure. Multiple Exp/11A chassis can be connected to one
TempScan/1100 to provide a total system capacity of up to
992 channels.
For MultiScan/1200 systems of more than 72 channels, the
10-slot Exp/11A is recommended and accommodates up to 240
input channels. Multiple Exp/11A chassis can be connected to
one MultiScan/1200 providing a total system capacity of up to
744 channels.
Exp/10A 2-slot expansion chassis
Exp/11A 10-slot expansion chassis
Up to 15 Exp/10A expansion chassis can be
attached to a TempScan/1100 or MultiScan/1200
To computer
(RS-232/422 or IEEE 488)
Exp/10A
2-slot expansion chassis
Exp/10A
2-slot expansion chassis
TempScan/1100
or MultiScan/1200
The TempScan/1100 or MultiScan/1200 can
support up to three Exp/11A expansion chassis
To computer
(RS-232/422 or IEEE 488)
Exp/11A
10-slot expansion chassis
Exp/11A
10-slot expansion chassis
Exp/11A
10-slot expansion chassis
TempScan/1100
or MultiScan/1200
Q U I C K F I N D
tel: 440-439-4091
fax: 440-439-4093
218
sales@iotech.com
www.iotech.com
the smart approach to instrumentation
TM
Temperature & Voltage Scanning Instruments
TempScan/1100
TM
& MultiScan/1200
TM
Measurement Modes
MultiScan/1200
The MultiScan/1200 offers three measuring modes for applica-
tion flexibility. These include a line-cycle integration mode, a
high-speed multichannel scanning mode, and a single-channel
burst mode. A discussion of the particular attributes of each
measuring mode follows.
Single-
Channel
Burst Mode
Measurement Mode
Line
Cycle
Integration
T/C
DCV
ACV
High-Speed
Multichannel
Scanning
--
--
TempScan/1100
Scan Technique. The TempScan/1100 uses a technique whereby
groups of 16 consecutive channels are scanned during every AC
line cycle (i.e., channels 1 to 16 are scanned during the first AC
line cycle, channels 17 to 32 are scanned during the subsequent
AC line cycle, and so forth). This results in maximum measure-
ment rates of 960 channels per second (60 Hz) or 800 channels
per second (50 Hz).
Per Channel Scan Rate
1,2,3,4
: The rate at which
individual channel values are updated depends on the
total number of channels scanned and the AC line
frequency (60/50 Hz).
* channels/s
DC Volts &
Thermocouples
50 Hz
60 Hz
1
38.5*
44*
2
19.2*
22*
4
9.6*
11*
AC
Volts
50 Hz 60 Hz
38.5*
44*
Maximum
Channel
Number
8
4.8*
5.5*
741
431
234
122
Line
Cycles
per
Reading
Line Cycle Integration
--
--
--
--
--
--
Scan Interval. For applications that require the logging of data
at a specified time interval, the TempScan/1100 offers a pro-
grammable scan interval. The effect of the scan interval is
illustrated in the example below.
Line-Cycle Integration Mode. The MultiScan/1200's ability to
sample and average 32 measurements per line cycle makes it
useful for high-accuracy applications and is recommended for
thermocouple measurements. What's more, when engaged in
line-cycle averaging, the unit provides AC or DC voltage, or
linearized and compensated thermocouple-based temperature
readings at up to 44 channels/s. The MultiScan/1200's AC
voltage measurement capability is ideal for power-line monitor-
ing applications. For each measurement, the unit calculates the
equivalent true RMS voltage based on 32 samples it acquires
during each AC line cycle.
High-Speed, Multichannel Scanning Mode. When the
MultiScan/1200's line-cycle averaging is disabled, the unit can
average 1, 2, 4, 8, 16, or 32 samples per channel. When the unit
is configured to take one sample per channel, it can scan 147
channels/s--or all of its potential 744 expansion channels in
approximately 5 seconds. This is important if the application
involves monitoring tens to hundreds of channels. By contrast,
data loggers and other temperature measuring instruments
typically acquire readings at only 5 to 20 channels/s.
Single-Channel Burst Mode. In single-channel burst mode, the
MultiScan/1200 can sample at up to 20 kHz on a single channel and
store the data in its memory, which can be expanded up to
8 Mbytes. When performing post-acquisition waveform analysis
such as Fast Fourier Transforms (FFTs), the unit can return each data
point in a waveform to your program. Alternatively, the unit can
provide a true RMS value of the equivalent AC voltage.
1. All thermocouple measurements are cold-junction compensated and linearized
2. Per-channel scan rate may be lower if channels are skipped
3. The per-channel scan rate may be calculated using the formula at right:
4. Divide the per-channel scan rate by 4 if using thermocouple wire > 500 ft.
AC line frequency
INT
Number of channels +15
16
1-16
60
50
17-32
30
25
33-48
20
16.7
49-64
15
12.5
65-80
12
10
81-96
10
8.3
97-112
8.6
7.1
113-128
7.5
6.25
785-800
1.2
1.0
945-960
1.0
.83
961-976
.98
.82
977-992
.97
.81
Number of Channels
Per Channel Scan Rate (Hz)
60 Hz
50 Hz
The TempScan/1100's programmable scan interval controls the time
between successive channel scans, as illustrated in the above
example for a 32-channel system
Scan Interval = 100 msec
Acquire: Data, alarms, and high, low,
and last statistics are updated
Monitor: Only alarms and high, low,
and last statistics are updated
Acquire
Acquire
Monitor
Monitor
16.67
33.33
t=0
t (msec)
100
116.67
133.33
Scan Interval
Channels
1-16
Channels
17-32
Channels
1-16
Channels
17-32
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