Campbell CR9000 User manual

INSTRUCTION MANUAL
CR9000 Measurement and
Control System
Revision: 5/05
Copyright (c) 1995-2005
Campbell Scientific, Inc.

Warranty and Assistance
The CR9000 MEASUREMENT AND CONTROL SYSTEM is warranted
by CAMPBELL SCIENTIFIC, INC. to be free from defects in materials and
workmanship under normal use and service for thirty-six (36) months from
date of shipment unless specified otherwise. Batteries have no warranty.
CAMPBELL SCIENTIFIC, INC.'s obligation under this warranty is limited to
repairing or replacing (at CAMPBELL SCIENTIFIC, INC.'s option) defective
products. The customer shall assume all costs of removing, reinstalling, and
shipping defective products to CAMPBELL SCIENTIFIC, INC. CAMPBELL
SCIENTIFIC, INC. will return such products by surface carrier prepaid. This
warranty shall not apply to any CAMPBELL SCIENTIFIC, INC. products
which have been subjected to modification, misuse, neglect, accidents of
nature, or shipping damage. This warranty is in lieu of all other warranties,
expressed or implied, including warranties of merchantability or fitness for a
particular purpose. CAMPBELL SCIENTIFIC, INC. is not liable for special,
indirect, incidental, or consequential damages.
Products may not be returned without prior authorization. The following
contact information is for US and International customers residing in countries
served by Campbell Scientific, Inc. directly. Affiliate companies handle
repairs for customers within their territories. Please visit
www.campbellsci.com to determine which Campbell Scientific company
serves your country. To obtain a Returned Materials Authorization (RMA),
contact CAMPBELL SCIENTIFIC, INC., phone [phone]. After an
applications engineer determines the nature of the problem, an RMA number
will be issued. Please write this number clearly on the outside of the shipping
container. CAMPBELL SCIENTIFIC's shipping address is:
CAMPBELL SCIENTIFIC, INC.
RMA#_____
815 West 1800 North
Logan, Utah 84321-1784
CAMPBELL SCIENTIFIC, INC. does not accept collect calls.

i
CR9000 Table of Contents
Overview..................................................................... OV-1
OV1. Physical Description ......................................................................OV-1
OV1.1 Basic System.........................................................................OV-1
OV1.2 Measurement Modules..........................................................OV-3
OV1.3 Communication Interfaces ....................................................OV-8
OV2. Memory and Programming Concepts............................................OV-9
OV2.1 Memory.................................................................................OV-9
OV2.2 Measurements, Processing, Data Storage..............................OV-9
OV2.3 Data Tables..........................................................................OV-10
OV3. PC9000 Application Software .....................................................OV-10
OV3.1 Hardware and Software Requirements................................OV-11
OV3.2 PC9000 Installation.............................................................OV-11
OV3.3 PC9000 Software Overview................................................OV-11
OV4. Specifications...............................................................................OV-14
1. Installation.................................................................1-1
1.1 Enclosure .............................................................................................. 1-1
1.1.1 Connecting Sensors..................................................................... 1-1
1.1.2 Quick Connectors ....................................................................... 1-1
1.1.3 Junction Boxes............................................................................ 1-2
1.2 System Power Requirements and Options............................................ 1-3
1.2.1 Power Supply and Charging Circuitry........................................ 1-3
1.2.2 Connecting to Vehicle Power Supply......................................... 1-6
1.2.3 Solar Panels................................................................................. 1-7
1.2.4 External Battery Connection....................................................... 1-7
1.2.5 Safety Precautions....................................................................... 1-8
1.3 Humidity Effects and Control............................................................... 1-8
1.3.1 Desiccant..................................................................................... 1-8
1.3.2 Nitrogen Purging......................................................................... 1-8
1.4 Recommended Grounding Practices..................................................... 1-9
1.4.1 Protection from Lightning........................................................... 1-9
1.4.2 Effect on Measurements: Common Mode Range ...................... 1-9
1.5 Use of Digital Control Ports for Switching Relays............................. 1-10
2. Data Storage and Retrieval......................................2-1
2.1 Data Storage in CR9000....................................................................... 2-1
2.1.1 Internal Static Ram...................................................................... 2-1
2.1.2 Internal Flash Memory................................................................ 2-1
2.1.3 9080 PAM Module — PCMCIA PC Card.................................. 2-2
2.2 Internal Data Format............................................................................. 2-2
2.3 Data Collection..................................................................................... 2-3
2.3.1 The Collect Menu ....................................................................... 2-4
2.3.2 RealTime Write File.................................................................... 2-6
2.3.3 Logger Files Retrieve.................................................................. 2-7
2.3.4 Via PCMCIA PC Card................................................................ 2-8

CR9000 Table of Contents
ii
2.4 Data Format on Computer.....................................................................2-9
2.4.1 Header Information.....................................................................2-9
2.4.2 TOA5 ASCII File Format .........................................................2-11
2.4.3 TOB1 Binary File Format .........................................................2-12
2.4.4 TOB2 Binary File Format .........................................................2-12
3. CR9000 Measurement Details................................. 3-1
3.1 Measurements using the CR9041 A/D..................................................3-1
3.1.1 Analog Voltage Measurement Sequence ....................................3-1
3.1.2 Single Ended and Differential Voltage Measurements ...............3-3
3.1.3 Signal Settling Time....................................................................3-6
3.1.4 Thermocouple Measurements .....................................................3-7
3.1.5 Bridge Resistance Measurements..............................................3-14
3.1.6 Measurements Requiring AC Excitation...................................3-16
3.1.7 Influence of Ground Loop on Measurements ...........................3-16
3.2 CR9058E Isolation Module Measurements........................................3-17
3.2.1 CR9058E Supported Instructions..............................................3-18
3.2.2 CR9058E Sampling, Noise and Filtering..................................3-20
3.3 CR9052 Filter Module Measurements................................................3-22
3.4 Pulse Count Measurements.................................................................3-25
4. CRBASIC - Native Language Programming .......... 4-1
4.1 Format Introduction ..............................................................................4-1
4.1.1 Mathematical Operations ............................................................4-1
4.1.2 Measurement and Output Processing Instructions......................4-1
4.1.3 Inserting Comments Into Program..............................................4-2
4.2 Programming Sequence ........................................................................4-2
4.3 Example Program..................................................................................4-3
4.3.1 Data Tables..................................................................................4-4
4.3.2 The Scan — Measurement Timing and Processing ....................4-5
4.4 Numerical Entries .................................................................................4-6
4.5 Logical Expression Evaluation .............................................................4-7
4.5.1 What is true? ...............................................................................4-7
4.5.2 Expression Evaluation.................................................................4-7
4.5.3 Numeric Results of Expression Evaluation.................................4-7
4.6 Flags......................................................................................................4-8
4.7 Parameter Types....................................................................................4-8
4.7.1 Expressions in Parameters...........................................................4-9
4.7.2 Arrays of Multiplier Offsets for Sensor Calibration ...................4-9
4.8 Program Access to Data Tables ............................................................4-9
5. Program Declarations.............................................. 5-1
6. Data Table Declarations and Output
Processing Instructions..................................... 6-1
6.1 Data Table Declaration .........................................................................6-1
6.2 Trigger Modifiers..................................................................................6-2
6.3 Export Data Instructions .......................................................................6-8
6.4 Output Processing Instructions .............................................................6-9

CR9000 Table of Contents
iii
7. Measurement Instructions.......................................7-1
7.1 Voltage Measurements ......................................................................... 7-3
7.2 Thermocouple Measurements............................................................... 7-3
7.3 Half Bridges.......................................................................................... 7-6
7.4 Full Bridges .......................................................................................... 7-9
7.5 Excitation/Continuous Analog Output ............................................... 7-10
7.6 Self Measurements.............................................................................. 7-11
7.7 Peripheral Devices.............................................................................. 7-12
7.8 Digital I/O........................................................................................... 7-21
7.9 CR9052DC Filter Module Measurements.......................................... 7-26
8. Processing and Math Instructions..........................8-1
9. Program Control Instructions..................................9-1
A. Keywords and Predefined Constants....................A-1
Index ....................................................................... Index-1

CR9000 Table of Contents
iv
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OV-1
Overview
The CR9000 is a modular, multi-processor system that provides precision measurement
capabilities in a rugged, battery-operated package. The system makes measurements at a
rate of up to 100 K samples/second with 16-bit resolution. Higher sample rates and
resolutions can be attained using some of our higher end modules (CR9052E filter module,
or the CR9058E isolation module). The CR9000 Base System includes CPU, power
supply, and A/D modules. Up to nine I/O modules are inserted to configure a system for
specific applications. The on-board, BASIC-like programming language includes data
processing and analysis routines. PC9000 Windows
™ Software provides program
generation and editing, data retrieval, and realtime monitoring.
CR9000
AC ADAPTOR
FIGURE OV1-1. CR9000 Measurement and Control System
OV1. Physical Description
OV1.1 Basic System
CR9031 CPU Module
The CR9031 CPU Module provides system control, processing, and
communication to a PC via Transputer Link (TLINK) and fiber optic. The
main processor is a 32-bit Inmos T805 Transputer. The module has 2MB
static RAM and 2MB Flash EEPROM.

CR9000 Overview
OV-2
9031 CPU
FIBER OPTIC
LINK IN FIBER OPTIC LINK OUT TLINK
MADE IN USA
FIGURE OV1-2. CR9031
CR9041 A/D and Amplifier Module
The CR9041 A/D and Amplifier Module provides signal conditioning and 16
bit, 100 kHz A/D conversions.
9041 A D
CR9000
MEASUREMENT & CONTROL SYSTEM
LOGAN, UTAH
MADE IN USA
FIGURE OV1-3. CR9041
CR9011 Power Supply Module and AC Adapter
The CR9011 Power Supply Module provides regulated power to the CR9000
from the internal battery modules. It also regulates battery charging from
power supplied by the AC adapter, a DC input, or other external sources. The
AC adapter may be used where AC power is available (100 - 240 volts) to
provide power to the CR9000 and charge its batteries.
The CR9011 has a relay that allows shutting off power under program control.
The Power Up inputs allow an external signal to awaken the CR9000 from a
powered down state (PowerOff, Section 9). When the CR9000 is in this power
off state the ON Off switch is in the on position but the internal relay is open.
The power LED is not lit. If the "<0.5 " input is switched to ground or if the
">2" input has a voltage greater than 2 volts applied, the CR9000 will awake,
load the program in memory and run. If the "< 0.5" input continues to be held
at ground while the CR9000 is powered on and goes through its 2–5 second
initialization sequence, the CR9000 will not run the program in memory.
MEASUREMENTS:
Battery (voltage and current)
CONTROL:
PowerOff

CR9000 Overview
OV-3
9011 POWER SUPPLY
POWER ON OFF
CHARGE(9-18VDC)
<0.8V
CHARGE
>2.0V
12VOUT POWER UP
MADE IN USA
FIGURE OV1-4. CR9011
OV1.2 Measurement Modules
CR9050(E) Analog Input Module
The CR9050(E) Analog Input Module has 14 differential or 28 single-ended
inputs for measuring voltages up to ±5 V. Voltages exceeding ±9 V may cause
errors on other channels. An on-board PRT provides the reference temperature
for thermocouple measurements, while a heavy copper grounding bar and
connectors combine with the case design to reduce temperature gradients for
accurate thermocouple measurements. Resolution on the most sensitive range
is 1.6 µV.
MEASUREMENTS:
Voltage
Differential Voltage (VoltDiff)
Single-Ended Voltage (VoltSE)
Thermocouple, Differential Voltage (TCDiff) Thermocouple, Single-Ended
Voltage (TCSE)
Bridge measurements (also require CR9060 Excitation Module)
Full Bridge (BrFull)
6 Wire Full Bridge (BrFull6W)
Half Bridge (BrHalf)
3 Wire Half Bridge (BrHalf3W)
4 Wire Half Bridge (BrHalf4W)
Module Temperature (ModuleTemp)
9050 ANALOG INPUT W RTD
SE
DIF 1
1
H2
L2
3
H4
L3
5
H6
L4
7
H8
L5
9
H10
L6
11
H12
L7
13
H14
L8
15
H16
L9
17
H18
L10
19
H20
L11
21
H22
L12
23
H24
L13
25
H26
L14
27
H28
L
MADE IN USA
FIGURE OV1-5. CR9050
CR9051E Fault Protected 5V Analog Input Module
The number of channels and measurements are the same as for the CR9050
Analog Input Module. Each input channel is fault-protected so as to permit
over-voltages between +50 V and –40 V without corruption of measurements
on other input channels. All the CR9051E input channels become open
switches when the CR9000 is powered off. The CR9051E is recommended

CR9000 Overview
OV-4
over the CR9050E for applications where fault voltages beyond ±9 V could
come in contact with the inputs, or when the CR9000 could be powered off
while still connected to sensors that have power applied to them.
CR9051E FAULT MADE IN USA
CR9050EC
5V ANALOG INPUT CONNECTOR FOR CR9050E OR CR9051E MADE IN USA
FIGURE OV1-6. CR9051E
CR9052DC Anti-Alias Filter Module with DC Excitation
The CR9052DC is a high-performance anti-alias filter module that extends the
capability of the CR9000 Measurement and Control System. The module
includes six anti-aliased analog measurement channels with differential input
ranges from ±20 mV to ±5 V. Each input channel has current and voltage
excitation options. Measurement rates up to 50 kHz per channel are possible.
MEASUREMENTS:
VoltFilt
FFTFilt
CR9052DC MADE IN USA
CR9052EC
FILTER MODULE CONNECTOR DC EXCITATION MADE IN USA
FIGURE OV1-7. CR9052DC
CR9052IEPE Anti-Alias Filter Module with DC Excitation
The The CR9052IEPE module allows direct connection of Internal Electronics
Piezo-Electric (IEPE) accelerometers and microphones to CR9000- or
CR9000X-series dataloggers. Each CR9052IEPE includes six channels. Each
channel has a BNC connector, an open circuit indicator LED, and a short
circuit indicator LED which can indicate if the channel is over-or under-driven.
Each channel has a built-in constant current source which is software
programmable to 0, 2, 4, or 6 mA.
MEASUREMENTS:
VoltFilt
FFTFilt