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Model 6521 Low Current Scanner
CHANNELS PER CARD: 10.
FUNCTIONS: Amps.
CONTACT CONFIGURATION:
Current Mode: Single pole break-before-make for signal HI input. Signal
LO is common for all 10 channels and output. When a channel is off,
signal HI is connected to signal LO via a relay. All channels connect to
signal LO, in a make-before-break configuration between channel clo-
sures so that the current path is never interrupted.
All relays open when power is off.
SCAN SPEED:
1.5 channels/second with default settings.
43 channels/second maximum speed.
1
When used with 6517 Electrometer.
2
Scan speeds are for fixed range readings for 200V and 20mA 6517
ranges, into data buffer.
3
6517 Filter off, speed fast, settling time 0 seconds.
CONNECTOR TYPE: Inputs BNC, Outputs Triaxial.
SIGNAL LEVEL: 30V, 500mA, 10VA (resistive load).
CONTACT LIFE: >10
6
closures at maximum signal level; >10
low signal levels.
CONTACT RESISTANCE: <1Ω.
CONTACT POTENTIAL: <200µV.
OFFSET CURRENT: <1pA (<30fA typical at 23°C, <60% RH).
ACTUATION TIME: 2ms.
COMMON MODE VOLTAGE: < 30V peak.
ENVIRONMENT:
Operating: 0°C to 50°C up to 35°C at 70% RH.
Storage: –25°C to 65°C.
DIMENSIONS,WEIGHT: 38mm high × 70mm wide × 242mm deep (1.5 in
× 2.75 in × 9.5 in). Net weight 623g (22 oz).
Specifications are subject to change without notice.
1, 2
1, 2, 3
7
closures at
H
OUT
L
G
H
IN 1
L
H
IN 10
L
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