Measurement Computing DAC488 v.1 - Manual (Page 10)

4 DAC488 Overview DAC488 User’s Manual
General
WARNING WARNING WARNING WARNING
Service: This product contains no operator serviceable parts. Fuse replacement and
the changing of selected line voltage must be performed by qualified service personnel.
Never open the DAC488 case while it is connected to the AC line, or when analog
output terminals are connected to a device exceeding 60 VDC or 30 Vrms common
mode voltage!
Terminal Installation Category: Standard: Not Applicable. CE: Category 2 for Line Voltage Input
terminal. All other terminals are Category 1.
Dimensions: 425 mm wide x 45 mm high x 309 mm deep (16.75" x 1.75" x 12")
Weight: 3.32 kg. (7.31 lbs)
Environment: Standard: Indoor use, 0
°
to 50
°
C; 0 to 95% RH (non-condensing).
CE: Indoor use at altitudes below 2000 meters, 0
°
to 40
°
C; 0 to 80% RH up to 31
°
C decreasing
linearly 4% RH/
°
C to 40
°
C.
Controls: Power Switch (external), line voltage selection switch (internal), mode and IEEE address DIP
switch (external), calibration enable switch (external), digital output port configuration jumper
(internal)
Indicators: LEDs for TALK, LISTEN, SRQ, ERROR, TEST and POWER
Power: Internally selectable 105-125 V or 210-250 V; 50-60 Hz, 35 VA Max
Fuse: 3/8A, Slo Blo, 3AG (for 105-125 V power line) or 3/4A, Slo Blo, 3AG (for 210-250 V power line)
CAUTION CAUTION CAUTION CAUTION
Line Voltage: The protective conductor terminal on the AC line connector must be
connected to an external protective earthing system. Failure to make such a
connection will impair protection from shock. If common mode voltages connected to
the analog input terminals exceed 60 VDC or 30 Vrms, the AC line connector must
remain connected even when the unit is powered “off.” If it becomes necessary to
disconnect the AC line connector, you must first disconnect all power to the analog
input terminals.
CAUTION CAUTION CAUTION CAUTION
Fuse Failure: Fuse failure indicates a possible problem within the device circuitry. If a
fuse blows, contact a qualified service representative. Replacement fuses are to be
installed by qualified service personnel with the unit disconnected from the power
source and with all other terminals disconnected. If the line voltage selector is
changed, then the fuse designated for that line voltage must be used.