SIM928 Isolated Voltage Source0 pages

Small Instrumentation Modules
SIM928 — Rechargeable isolated voltage source

· ±20 V isolated voltage source
· Ultra-low noise output
· Two switchable, recharging batteries
for continuous operation
· Battery lifetime: 1000 charge cycles
· Output floats to ±40 V
· Short-circuit protected

· SIM928 ... $1095 (U.S. list)

SIM928 Isolated Voltage Source
The SIM928 Isolated Voltage Source is ideal for applications
where ultra-clean DC voltage is required. Voltage can be set
between ±20 VDC with millivolt resolution, and the source
can drive up to ±10 mA. The output circuit is optically
isolated from all earth-referenced charging circuitry, providing
maximum flexibility and noise immunity. The system can
float to ±40 V, and the output is short-circuit protected.
At the heart of the SIM928 are two independent nickel-metalhydride rechargeable batteries, each providing up to 12 hours
of operation under full-load conditions. When a battery is
nearly depleted, the SIM928 automatically switches in a
second battery. The switchover between batteries is virtually
glitch-free, giving you uninterrupted power around the clock.
The depleted battery is automatically charged to capacity in
about 5 hours. The batteries are guaranteed for 1000 charging
cycles, and SRS offers replacement battery sets.

Stanford Research Systems

In applications that occur over long time intervals, starting
with a fully charged battery may be desirable. A battery
charge override feature allows you to manually switch in the
fully charged battery (assuming it is in “ready” state) at any
time.
Banana binding posts are provided for the + terminal,
– terminal and chassis ground.

phone: (408)744-9040
www.thinkSRS.com