3-1/2 Digit ohmmeter 控制器-产品快照
- 品牌:
- 型号:
- 3-1/2 Digit ohmmeter
* 所有产品信息均源于第三方公开数据或用户上传，工业链仅整合供参考，真实价格货期请联系供应商确认.
| 供应商名称 | 电话 | 备注 |
|---|---|---|
| 暂无展示，可咨询在线客服 | 400-811-6961 |
 微信咨询，as10@gchane.com , QQ3350168184
|
产品介绍
3-1/2 Digit ohmmeter 控制器
3-1/2 Digit ohmmeter
The DP302-O is a low-cost 3-1/2 digit (1999-count) resistance meter with readout directly in ohms. Four ranges are jumper-selectable: 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
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
Home Pressure, Strain and Force Instrumentation for Pressure a... Digital Meters and Controllers
更多产品:
更多品牌:
