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Model 6664C
8 AND 16-CHANNEL LOW THERMAL QUAD SCANNERS
Complements All Guildline Bridges and Fully Automates Measurements
Guildline's 6664C Low Thermal Quad Scanner is the first
commercial scanner capable of operating at 1000V. This has
greatly improved the measurement/calibration throughput of
standards laboratories, since many high ohm measurements
can now be automated. High ohm measurements are typically
hard to make and very time consuming because of the low
signal/noise ratio. With a Guildline model 6664C scanner and
software, these hard-to-make high ohm measurements (up to
100 G) can be automated and scheduled at any time that is
convenient to the metrologists, even at night and over the
weekends.
This scanner is designed to work with a Guildline 6622A
Automatic Direct Current Comparator (DCC) Resistance Bridge,
a model 6622T Temperature Bridge or a Teraohmmeter (model
6520). Still have one of our older Guildline Automatic Bridges
such as a model 6675A? Our software and scanner also support
all previous Guildline' models.
Both 8-channel and 16-channel models are available. Like other
6664C FEATURES Guildline products, the 8-channel scanner can be expanded to
a 16-channel model, giving our customers exactly what's
Withstand up to 1000 V DC to provide fully needed now and the flexibility for future growth.
automated high ohm measurements
To manually select 4-terminal devices connected to the input
Each channel is rated 2 A channels, simply press the push button switch on the Line A-
output and another on the Line B-output. All other
8-channel and 16-channel models
connections remain isolated.
8-channel model expandable to 16-channel The 6664C performs switching for precision resistance
Thermoelectric Potential: <20 nV measurements with less than 20 nanovolt of thermal offsets.
Careful design in the use of latching relays, requiring only a
Contact Life: >10,000,000 cycles short pulse to actuate, eliminates self-heating errors.
Front Panel or Remote GPIB Control
The 6664C Low Thermal Quad Scanner Enables
4-Terminal Switching Matrix Scanner
Software Controlled, Fully Automated High Ohm
Gold flashed Tellurium Copper Terminals Measurements At Up to 1000 V
Special low thermal latching relays are used. Leakage between
the high and low circuits is reduced by switching them on
different printed circuit boards.
Protection circuits prevent selection of more than one 4
terminal connection on a channel output at the same time.
Front panel indicators show which channel is selected on each
output.
6664C 8 and 16-Channel, Low Thermal Quad Scanners
SPECIFICATIONS
Thermoelectric Potentials: <20 nV typical and <50nV max.
Life: >10,000,000 cycles at low levels
Initial Contact Resistance: 0.05 max.
Relay Contact Ratings: Current: 2A max at 10 V
Voltage Switched: 100 V max. at 1 mA
Voltage Non-Switched: 1000 V max.
Leakage Resistance: >1015
Input: 16 or 8 channels of 4-terminal gold flashed tellurium copper binding posts;
Inputs/ Outputs:
Output: 2 channels of 4-terminal low thermal binding posts
Communication 24 pin IEEE 488 connector
Each scanner is shipped with an external 5V DC supply that can be powered by
Power Supply:
95~260V, 50/60Hz. Consumption