System Characteristics
Scanning Inputs
Analog HP 34901A, HP 34902A, and HP 34908A
multiplexer channels
Digital HP 34907A digital in and totalize
Scan list Scans channels in ascending order
Scan Triggering
Source Interval, external, button press, software,
or on monitor channel alarm
Scan count 1 to 50,000 or continuous
Scan interval 0 to 99 hours; 1ms step size
Channel delay 0 to 60 seconds per channel; 1 ms step size
External trig delay <2 ms. With monitor on <200 ms
External trig jitter <2 ms
Alarms
Analog inputs Hi, Lo, or Hi + Lo evaluated each scan
Digital inputs HP 34907A digital in: maskable pattern match
or state change
HP 34907A totalize: Hi limit only
Monitor channel Alarm evaluated each reading
Alarm Outputs 4 TTL compatible
Selectable TTL logic Hi or Lo on fail
Latency 5 ms (typical)
Memory Battery backed, 4 year typical life
[1]
Readings 50,000 with timestamp
Readable during scan
States 5 instrument states with user label
Alarm Queue Up to 20 events with channel number, reading,
and timestamp
System Features
Per-channel Math Individual Mx + B scaling and
Min/Max/Average calculated real time
Power Fail Recovery Resumes scanning automatically
Relay maintenance Counts each relay closure and stores on module
User resettable.
Real time clock Battery-backed, 4 year typical life
[1]
General Specifications
Power Supply 100V / 120V / 220V / 240V ±10%
Power Line Frequency 45 Hz to 66 Hz automatically sensed
Power Consumption 12 W (25 VA peak)
Operating Environment Full accuracy for 0°C to 55°C
Full accuracy to 80% R.H. at 40°C
Storage Environment -40°C to 70°C
[1]
Weight Net: 3.6 kg (8.0 lbs)
Safety Conforms to CSA, UL-1244, IEC 1010 Cat I
RFI and ESD CISPR 11, IEC 801/2/3/4
Warranty 3 years
Software
HP BenchLink Data Logger (not included with Option 001)
System Requirements
[2]
PC Hardware 486, 66 MHz, 16 MB RAM, 12 MB disk space
Operating System
Windows®3.1,Windows 95®, Windows NT 4.0
®
Computer Interfaces
[3]
HP-IB HP 82335B, 82340A/B/C, 82341A/B/C/D
National Instruments AT-GPIB/TNT, PCI-GPIB
LAN -to- HP-IB HP 2050A (Windows 95 and NT only)
RS-232 (Serial Port) PC COM 1-4
HP BenchLink Features
Configuration Spreadsheet-like setup page
Upload and Download intrument setups
Computed channels using
+ - * / , dB, dBm, dBV, x
2
, √x
and full, 1/2, or 1/4 bridge strain
Graphical Displays
Real-time and historical data displays
Add, delete, size, and configure real time
Strip chart with markers and alarm indication,
X-Y chart with curve fit, Histogram,
Bar meter, Digital meter, and Data table
Graphical Controls
Sliders, switches, buttons, and LED lights
Alarm / Limit testing
Start / Stop scanning on alarm condition
Control HP 34903A relay state or HP 34907A
digital output on alarm
Data
Real time streamed (saved) to disk
Copy data or graphics to windows clipboard
Export user-selected data to ASCII file, CSV, TSV
Event logging
Automatic entry of alarms and errors
Enter user notes real time
Printing
Setup spreadsheet, all graphics, and
event log entries
HP BenchLink Performance
[4]
Scan and save to disk 100 ch/s 2 strip charts displayed
Instrument Driver Support for Programming Languages
Universal Compatible with Windows 95 and NT
Instrument Driver HP VEE 3.2,
Visual Basic 4.0,
LabWindows CVI 4.0,
LabVIEW 4.0
LabVIEW Driver (VI) LabVIEW 4.0
[1] Storage at temperatures above 40°C will decrease battery life
[2] Software provided on CD-ROM and includes utility to create floppy disks for installation
[3] Interface and driver must be purchased and installed separately
[4] 90 MHz Pentium, 20 MB RAM
Windows, Windows 95, and Windows NT are registered trademarks of Microsoft Corp.
LabVIEW is a registered trademark of National Instruments Corporation.
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