Information

Digital inputs
Threshold: 1.4 V
Hysteresis: 500 mV
Maximum input: +30 V, min -4 V;
non-isolated
Digital/master alarm outputs
The open collector output lines are
non-isolated, TTL compatible
Digital I/O and alarm outputs
8 total; totalizer: 1
Alarm associations
Digital I/O may be used as a digital
input or alarm status output (asso-
ciated with any input channel or
channels)
Trigger input
Minimum pulse: 5 μs
Minimum latency: 2 ms
Repeatability: 1 ms
Input “High”: 2.0 V min, 7.0 V max
Input “Low”: -0.6 V min, 0.8 V max
non-isolated, contact closure and
TTL compatible
Clock
Accurate to within 1 minute/month
for 0 °C to 50 °C range
Power
107 V ac to 264 V ac, 50 Hz or 60
(<15 watts), or 9 to 16 V dc (<6
watts). (If both sources are
applied simultaneously, the greater
of ac or dc is used.) At 120 V ac the
equivalent dc voltage ~14.5 V.
Temperature, humidity
(non-condensing)
Operating:
-20 °C to 28 °C, ≤90 % RH
28 °C to 40 °C, ≤75 % RH
40 °C to 60 °C, ≤50 % RH
Storage: -40 °C to 70 °C, 5 to
95 % RH
Altitude
Operating: 2000 m (6,500 ft)
Storage: 12,200 m (40,000 ft)
Electromagnetic Interference
(EMI)
Passes FCC EMI Class B Equipment,
Vfg. 243, European Norms
EN50081-1 and EN50082-1, CE
approved
Safety
Complies with applicable sections
of CE, IEC/EN 61010-1:2001, ANSI/
ISA-61010-1 (82.02.01) :2004, CAN/
CSA C22.2 No. 61010-1:2004, and
CSA standards as noted under
“Isolation”
Weight
3.7 kg (8.2 lbs)
Dimensions (HxWxD)
9.3 cm x 21.6 cm x 39.4 cm
(3.67 in x 8.50 in x 15.50 in)
Battery life
10 years minimum for real-time clock
Interfaces
Ethernet: Conforms to IEEE 802.3
Ethernet standard. Compatible with
10Base-T standards. Uses TCP/IP
protocol. RS-232C: For calibration
only. The optional NetDAQ Service
Manual provides step-by-step cali-
bration instructions.
Data buffer memory
Each scan consists of computed
channels, time stamp, all defined
analog input channels, the status of
the eight digital I/O, and the totalizer
count. The number of stored scans
varies with the number of channels
configured ranging from 6400 scans
for 1 configured channel to 1,896
scans for 20 configured channels.
Fluke data acquisition systems
are supported by a wide variety of
optional software and development
tools to support almost any research
or industrial application.
16
Ordering
information
2640A
NetDAQ Data Acquisition Unit (100 rps)
2645A
NetDAQ Data Acquisition Unit (1,000 rps)
Includes: Instrument, FlukeDAQ Software,
Universal Input Module, manual on CD,
power cable.
Application software
2600A-904
Trend Link for Fluke
2680A-APSW
Fluke DAQ Software and extra license
(one license included with 2680 Series,
2640A, 2645A)
Options and accessories
2620A-100
Extra Universal Input Module
2620A-101
Current Shunts, 10 Ω, for 0 to 100 mA,
Qty (12)
Y2641
19 in Rack Mount Kit, Single/Dual