8420-51 Datasheet, PDF (2/8 Pages) ASM GmbH – MEMORY HiLOGGER

2
Enhanced functionality in response to user demands
- Main features and product outline -
Features
Applications
● Numerical data logging/recording and trend graph display
● Completely isolated input channels
No need to worry about potential difference between measure-
ment objects
● Real-time saving to large capacity memory card
Use a large capacity memory card for long-term data recording
● Data collection to a PC via LAN
• Real-time measurements on PCs running LOGGER
COMMUNICATOR 9334
• Data acquisition by FTP client/server functions
• Send e-mail notification of anomalies by SMTP
• Monitor and control over the Web using HTTP server functions
● Power and Gas
• Trend measurement of machinery output/temperature
• Watt-hour meter pulse count/output recording of machinery
● Electronic Device and Component Manufacturing
• Product testing, quality control recording
● Automobiles, Trains and
Distribution Transportation
• Collect the necessary data during their
development
● Building Maintenance, Factory
Facilities
• Long-term data acquisition for maintenance
• Food-related temperature recording
Functions upgraded from former models
● Four Times More Internal Memory
Internal memory has been increased from 8 to 32
megabytes in the new models, which can now store up to
about 16.77 million data points.
● Enhanced Noise Immunity
The circuitry was reviewed from the ground up, and a delta-
sigma type A/D converter was incorporated. The effects
of inverter switching noise and 50/60 Hz hum noise that
previously presented problems have been greatly reduced
by the digital filtering function using the oversampling
principle inherent in this type of device.
Note: Optimum noise suppression obtained with recording inter-
vals of two seconds or longer
● Battery Charging Available During Operation
Previously, the battery could be charged only when the
instrument was turned off, but it can now be charged while
measuring. Because of this, if an unexpected power out-
age occurs during long-term measurement and recording,
situations such as measurement discontinuation resulting
from battery self discharge can be avoided, significantly
improving the reliability of long-term measurement.
● Improved Accuracy of Internal Clock
Clock accuracy has been greatly improved (0.2 seconds/
day is the same as the previous Model 8422-01).
● Chatter Filter Installed for External Trigger
The filter function installed for external triggering prevents
malfunctioning when starting and ending measurement us-
ing a mechanical relay.
External Docking Printer
Pulse totalization /rotation count inputs
• Up to four input channels
• All channels isolated
• For totalization of power and flow
values
Note: uses special input cable (CONNECTION
CABLE 9641)
RS-232C Connector
LAN Connector
(10 Base-T)
Get measurement result printouts on site by
docking with the PRINTER UNIT 8992.
Record long-period trend graphs and print
hard copies of screens.
External Docking Input-Output unit
PC Card slot
ch 32
ch 31
9329 TERMINAL UNIT (optional)
Attached Cover
Send control signals to an external device by
docking with the DIGITAL I/O UNIT 8993
(available with up to 16 channels). Sixteen
logic input channels are also provided. In
addition to analog and pulse inputs such as
for temperature, 16 points of simultaneous
logic signal input are supported.
AC Adapter
External Trigger
Terminals
Trigger Output
Terminals
ch 2
ch 1
Temperature /
voltage inputs
• Up to 32 input channels
(8420-51: 8 channels)
(8421-51: 16 channels)
• All channels isolated
M3 Screw Terminals
The recommended wire diameter
for the instrumentʼs terminal block
is 0.32mm (0.0126 inch). Use
the TERMINAL UNIT 9329 to
secure smaller-diameter wire.