DP302-OR2 美国OMEGA控制器

　　DP302-OR2 美国OMEGA控制器详细介绍

　　DP302-OR2

　　3-1/2数字欧姆表

　　DP302-O

　　1年保修 CE

　　3-1/2数字欧姆表

　　DP302-O:3-1/2数字欧姆表

　　1999 Count Display Span

　　19.99 Ω to 19.99 kΩ Ranges

　　2-, 3- or 4-Wire Connection

　　120 dB CMR, 70 dB NMR

　　1 mV/deg Count Output

　　Bright, 14 mm (0.56") LED Display

　　Display Hold and Test

　　115/230 Vac Power

　　EMI/RFI Filter for AC Power

　　Screw-Terminal Barrier Strip

　　Short 104 mm (4.1") Deep 1/8 DIN Case

　　Options

　　Isolated 9 to 32 Vdc or 26 to 56 Vdc Power

　　NEMA 4 (IP65) Splash-Proof Lens Cover

　　The DP302-O is a low-cost 3-1/2 digit (1999-count) resistance meter with readout directly in ohms. Four ranges are jumper-able: 19.99 Ω, 199.9 Ω, 1.999 kΩ, 19.99 kΩ. It is complete with low-level current excitation and open-resistance indication. The current source is tied to the reference of the A/D converter for true ratiometric operation and immunity to changes in line voltage.

　　STANDARD FEATURES

　　Electrical features include linearized analog output of 1 mV per count, which is ideal for driving a strip-chart recorder. Mechanical features include a bright 14 mm (0.56") LED display, a screw-terminal barrier strip for signal and power, and a compact 1/8 DIN case that requires a depth of less than 104 mm (4.1") behind the bezel.

　　OPTIONS

　　Options are isolated 9 to 32 Vdc or 26 to 56 Vdc power, a PCB edge connector for display control and output of +4.7 Vdc and -4.7 Vdc, and a splash-proof lens cover which meets NEMA 4 (IP65) requirements.

　　SPECIFICATIONS

　　Noise Rejection

　　NMR: 70 dB, 50/60 Hz

　　CMR, ANA GND to PWR GND: 120 dB to 60 Hz

　　CMV, ANA GND to PWR GND: 1500 Vp per HV test, 354 Vp per IEC spacing

　　Power

　　AC Voltages: 115 or 230 Vac, ±15%

　　AC Frequency: 49 to 440 Hz

　　DC Voltages: 9 to 32 Vdc, isolated to 300 Vp; 26 to 56 Vdc, isolated to 300 Vp

　　Power Consumption: 3.7 W

　　Output Voltages: 4.7 Vdc and -4.7 Vdc ±5%,10 mA max

　　Input

　　Connection: 2-, 3- or 4-wire

　　Excitation Current: 4 mA or 40 μA

　　Resistance Break Indication: Meter displays overrange

　　Overvoltage Protection: 25 Vp

　　Display

　　Type: 7-segment, red LED

　　Height: 14 mm (0.56")

　　Symbols: 1.8.8.8

　　Decimal Points: Three positions programmable by jumpers or at connector

　　Overrange or Break Indication: Three least-significant digits blank

　　Accuracy At 25°C

　　Span Tempco: ±0.01% of reading/°C

　　Zero Tempco: ±1 m/°C (19.99 Ω and 199.9 Ω ranges), ±0.1 Ω/°C (1.999 kΩ and 19.99 kΩ ranges)

　　Full-Scale Step Response: 1 s

　　Warmup to Rated Accuracy: 10 min

　　Environmental

　　Operating Temperature: 0 to 60°C

　　Storage Temperature: -40 to 85°C

　　Relative Humidity: 95% at 40°C (non-condensing)

　　Analog-to-Digital Conversion

　　Technique: Dual-slope, average value

　　Signal Integration Period: 100 ms

　　Read Rate: 2.5/s

　　Analog Output (Linearized)

　　Voltage: 1 mV/count

　　Calibration Error: Same as given under accuracy

　　Current: 1 mA maximum

　　Source Resistance: 68 Ω

　　Digital Inputs

　　Level: TTL or 5V CMOS compatible

　　Mechanical

　　Bezel: 96 W x 48 H x 5.1 mm D (3.78 x 1.89 x 0.20")

　　Depth Behind Bezel: 104 mm (4.09")

　　Panel Cutout: 92 W x 45 mm H (3.62 x 1.77")

　　Weight: 15 oz (425 g)

　　Case Material: 94 V-0 UL-rated polycarbonate

　　产品型号说明

　　(1) (2) (3) (4)

　　选项描述

　　(1) Model

　　选择

　　DP302 代表 3-1/2 digit ohmmeter

　　(2) Input Range

　　选择

　　-OR1 代表 0 to 19.99 ohm

　　-OR2 代表 0 to 199.9 ohm

　　-OR3 代表 0 to 1.999 kohm

　　-OR4 代表 0 to 19.99 kohm

　　(3) Power options

　　选择

　　Nothing(leave field blank) 代表 115 Vac 50/60 Hz power

　　-C1 代表 230 Vac 50/60 Hz

　　-C3C 代表 Isolated 9 to 32 Vdc

　　-C3E 代表 Isolated 26 to 56 Vdc

　　(4) Add-On Option

　　选择

　　Nothing(leave field blank) 代表 red LED display

　　-G 代表 Green LED display

　　DP302-OR2

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