User manual

2638A
Users Manual
1-12
General Specifications
Mains Voltage
100 V Setting ...................................................... 90 V to 110 V
120 V Setting ...................................................... 108 V to 132 V
220 V Setting ...................................................... 198 V to 242 V
240 V Setting ...................................................... 216 V to 264 V
Frequency .............................................................. 47 Hz to 440 Hz
Power Consumption ............................................. 36 VA peak (24 W average)
Environment Temperature
Operating ............................................................ 0 °C to 50 °C
Full accuracy ....................................................... 18 °C to 28 °C
Storage ............................................................... -20 °C to 70 °C
Warm-up ............................................................. 1 hour to full accuracy specifications
Relative Humidity (non-condensing)
Operating ............................................................ 0 °C to 28 °C <90 %
28 °C to 40 °C <75 %
40 °C to 50 °C <45 %
Storage ............................................................... -20 °C to 70 °C <95 %
Altitude
Operating ............................................................ 2,000 m
Storage ............................................................... 12,000 m
Channel Capacity
Total analog channels ........................................ 67
Voltage/resistance channels ............................... 61
Current channels ................................................ 7
Digital I/O ............................................................ 8 bits
Totalizer .............................................................. 1
Alarm outputs...................................................... 6
Trigger input ........................................................ 1
Channel Capacity: 2638A/05
Total analog channels .................................................. 23
Voltage/resistance channels ...................................... 21
Current channels ............................................................. 2
Safety Protection
Mains Input ....................................................... IEC 61010-1, Overvoltage Category II, Pollution Degree 2
Measurement Front Panel ................................ IEC 61010-2-030: CAT II 300 V
Measurement Rear Panel ................................. IEC 61010-2-030: CAT II 150 V CAT II, 250 V rms with maximum
transient voltage of 1000 V peak. These terminals are not intended for
connection to mains voltage above 150 V without external transient
suppression. The maximum input that can be applied between rear-
module terminals or between any rear-module terminal and earth
ground is 250 V dc or ac rms.
Electromagnetic Compatibility (EMC)
International ........................................................ IEC 61326-1: Basic Electromagnetic Environment
CISPR 11: Group 1, Class A
Group 1: Equipment has intentionally generated and/or uses
conductively-coupled radio frequency energy that is necessary for
the internal function of the equipment itself.
Class A: Equipment is suitable for use in all establishments other
than domestic and those directly connected to a low-voltage power
supply network that supplies buildings used for domestic purposes.
There may be potential difficulties in ensuring electromagnetic
compatibility in other environments due to conducted and radiated
disturbances.
Emissions that exceed the levels required by CISPR 11 can occur
when the equipment is connected to a test object.