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4-1-2 Digit (Pt100) RTD Meters- 1-8 DIN
TRODEKS Engineering | Thermocouples, Pressure Transducers, Flow Meters, PID Controllers
DP3002-M
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  • Platinum 100 RTD Input
  • 1 mA Excitation Current
  • 2-, 3- or 4-Wire Connection
  • 0.1°C or 0.1°F Resolution
  • °C or °F, Jumper-Selectable
  • Platinum Curve Linearization
  • 120 dB CMR, 70 dB NMR
  • 1 mV/deg Linearized Analog Output
  • Bright, 14.2 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
 Manuals (contact with email : [email protected])
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Description

Description

The DP3002-M is a low-cost 4-1/2 digit(±19,999 count) temperature indicator for use withplatinum 100 RTD’s with alpha of 0.00385. It iscomplete with 1 mA sensor excitation, sensor-breakdetection, and platinum curve linearization. Resolutionis 0.1°. Readout can be in °C or °F, as selected bypush-on jumpers. The electrical connection can be by2-, 3-, or 4-wires. High accuracy is provided by positivecurrent feedback and matched, graded components.

STANDARD FEATURES
Mechanical features include a bright 14 mm (0.56")display, a screw-terminal barrier strip for signal andpower, and a compact 1/8 DIN case that requiresless than 104 mm (4.1") behind the panel. Electricalfeatures include jumper selection of °C or °F, alinearized recorder output of 1 mV per degree, and1 mA current excitation. The current source is tied tothe reference of the A/D converter for true ratiometricoperation and immunity to changes in line voltage.

OPTIONS
Power options include isolated 9 to 32 Vdc and26 to 56 Vdc. A splash-proof lens cover which meetsNEMA 4 (IP65) requirements allows the DP3002 to beused in harsh industrial environments.

SPECIFICATIONS
Analog Input
RTD Type: 100 Ω platinum with alpha of 0.00385
Calibration: IEC 751 (IPTS-68)
Configuration: 2-, 3-or 4-wire connection
Polarity: Bipolar
Zero: Adjustable ±20°C (±36°F)
Zero Tempco: ±0.05 deg/deg
Sensor-Wire Resistance Tempco
Effect Per Conductor:

2-wire: 20 mdeg/Ω/deg, up to 3.8 Ω
3-wire: 50 µdeg/Ω/deg, up to 100 Ω
4-wire: 5.0 µdeg/Ω/deg, up to 100 Ω
Sensor-Excitation Current: 1 mA
Sensor-Break Indication: Meter displays overrange
Overvoltage Protection: 25 Vp
Noise Rejection
NMR, SIG HI to SIG LO: 70 dB, 50/60 Hz
CMR, ANA GND to PWR GND: 120 dB, DC to 60 Hz
CMV, ANA GND to PWR GND: 1500 Vp per HV test, 354 Vp per IEC spacing.
Analog Output (Linearized)
Voltage: 1 mV/deg
Calibration Error: Same as given under accuracy
Current: 1 mA maximum
Source Resistance: 68 Ω
Analog-to-Digital Conversion
Technique: Dual-slope, average value
Signal Integration Period: 100 ms
Read Rate: 2.5/s
Display
Type: 7-segment, red LED
Height: 14 mm (0.56")
Symbols: -1.8.8.8.8
Decimal Points: Four positions, programmable by jumpers behind lens or at connector
Overrange Indication: Four least-significant digits flash
Accuracy at 25°C
Span Tempco: ±0.005% R/°C on all models plus ±0.05°C/°C for -RC from -200 to -130°C
Celsius/Fahrenheit: Jumper-selectable
Full-Scale Step Response: 1 s
Warmup to Rated Accuracy: 20 min
Digital Inputs
Level: TTL or 5V CMOS compatible 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 nominal
Output Voltages: 4.7 Vdc and -4.7 Vdc ±5%, 10 mA max
Environmental
Operating Temperature: 0 to 60°C
Storage Temperature: -40 to 85°C
Relative Humidity: 95% at 40°C (non-condensing)
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: 94V-0 UL-rated polycarbonate
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