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2-12 General Information & Specifications
878595
Personal Daq User’s Manual
Frequency Specifications,
one year 0 to 50°C
(Not applicable to Personal Daq/54)
Operating Modes:
Pulse count (totalize), frequency, and duty cycle
Frequency Response:
DC to 1 MHz
Accuracy:
100 ppm; 1 ppm/°C
Resolution:
Up to 7 digits, user selectable.
Input Voltage Range:
-15 to +15 VDC Absolute Maximum, TTL sense levels
Schmitt-trigger inputs, <1.3 V (low), >3.8 V (high)
Pull-up Resistor:
27 K
Ω
to +5 V for switch or relay sensing
Debouncing:
None, 0.8, 3.2, or 13 milliseconds (software selectable)
Totalize:
Up to 2
32
counts/scan
Digital I/O Specifications
(Not applicable to Personal Daq/54)
Configuration:
Each I/O line is individually selectable as input or output. Each I/O line includes an open-collector driver
with a 27 K
Ω
pull-up resistor to +5 V for output, and a Schmitt-trigger input buffer.
Over-Voltage:
+20 VDC for up to 1 minute
Output Characteristics:
Voltage Range:
0 to +5VDC with no external pull up resistor; 0 to +15VDC with external pull up
Maximum Sink Current:
150 mA/output continuous, 500 mA output peak (<100 µs),
150 mA total continuous (per bank of 8 outputs)
Output Resistance:
10
Ω
max
Output Updates:
Outputs may be changed via program control
Input Characteristics:
Voltage Range:
0 to +15VDC
Thresholds:
<1.3 V (low), > 3.8 V (high)
General Specifications
Warm-up:
1 hour to rated specifications
Environment:
Operating:
0-50°C, 0-95% RH (non-condensing)
Storage:
-20 to 70°C
Isolation:
500 VDC from PC common
USB Power Source:
PC USB port or
self-powered
USB hub; 500 mA maximum
External Power Source:
Required when used with
a bus-powered
hub; +6 to +16 VDC, 500 mA
Option Notes
: (1) the TR-2 External Power Supply is a 120 VAC to +9 VDC adapter;
(2) the TR-2E External Power Supply is a 230 VAC to +9 VDC adapter
Vibration:
MIL Std 810E
Dimensions:
92 x 182 x 45 mm (3.6 x 7.1 x 1.8 inches)
Weight:
Personal Daq/55: 300g (10.5 oz )
Personal Daq/54: 300g (10.5 oz )
Personal Daq/56: 360g (12.5 oz)
PDQ1: 300g (10.5 oz )
PDQ2: 300g (10.5 oz )
Optional Accessories
PDQ10 – DIN-Rail Mounting
PDQ11 – 4 powered USB Hub with cable
PDQ12 – USB extender cable, 5 meters
PDQ13 – PCI to dual USB card
TR-2
−
External Power Supply, 120 VAC to +9 VDC adapter
TR-2E
−
External Power Supply, 230 VAC to +9 VDC adapter
CN-153-12
−
Terminal Block
USB Cables:
CA-179-3 (3 meter)
CA-179-5 (5 meter)
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