The DP302-J, -K and -T are 3-1/2 digit (±1999 count)
panel meters for thermocouple types J, K and T.
They are available for display in °C or °F and
resolution of 1° up to 1999° or 0.1° up to 199.9°. They
are recommended for demanding indication-only
applications where exceptionally low-cost is required.
For display up to 1999.9° with 0.1° resolution,
OMEGA®. recommends its DP3002 Series
meters, which provides a 4-1/2 digit (±19,999 count)
main assembly.
STANDARD FEATURES
The DP302 Series thermocouple meters provide
exceptional accuracy, as made possible by fivesegment
linearization and use of matched, graded
components for each T/C type. Electrical features
include cold-junction compensation and jumper
selection of °C or °F. A 1 mV per count linearized
analog output is standard and is ideal for driving a
strip-chart recorder.
Mechanical features include a bright 14.2 mm (0.56")
display, a screw-terminal barrier strip for signal and
power, and a compact 1/8 DIN case that requires less
Electrical features include cold-junction compensation,
jumper selection of °C or °F, and a linearized recorder
output of 1 mV per degree.
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 Input Thermocouple: Type J: (Iron-Constantan, Fe-CuNi) Type K: (Chromel-Alumel, NiCr-NiAl) Type T: (Copper-Constantan, Cu-CuNi) Calibration: IEC 584-1 (IPTS-68) Configuration: Single-ended (-TC lead connected to ANA GND) Polarity:Bipolar Zero: Adjustable ±20°C ( ±36°F) Cold-Junction Tempco: ±0.05 deg/deg
Sensor-Wire Resistance Effect Per Conductor: Type J: 40 µdeg/deg/Ω, up to 2500 Ω Type K: 50 µdeg/deg/O, up to 2000 Ω Type T: 50 µdeg/deg/O, up to 2000 Ω Sensor-Break Current: 300 nA Sensor-Break Indication: Meter displays positive overrange (upscale)
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
Digital Inputs Level:TTL or 5 V CMOS compatible
Accuracy at 25°C (1° resolution models) Range for Rated Accuracy: Type J: - 138 to 760°C (- 216 to 1400°F) Type K: - 105 to 1248°C (- 157 to 1999°F) Type T: - 112 to 400°C (- 170 to 752°F) Maximum Error: ±1.5°C (±2.7°F) ±1/2 count Span Tempco: ±0.01% of reading/°C Resolution: 0.1°C or 0.1°F (jumper-selectable) Full-Scale Step Response: 1 s Warmup to Rated Accuracy: 10 min
Accuracy at 25°C (0.1° resolution models) Range for Rated Accuracy, all T/C Types: - 105.0 to 199.9°C (- 157.0 to 199.9°F) Maximum Error: ±1.0°C (±1.8°F) ±1/2count Span Tempco: ±0.01% of reading/°C Resolution: 0.1°C or 0.1°F (jumper-selectable) Full-Scale Step Response: 1 s Warmup to Rated Accuracy: 20 min
Analog Output (Linearized) Voltage: 1 mV/count Calibration Error: ±1.5 mV on °C, ±2.7 mV on °F Current: 1 mA max 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: 14.2 mm (0.56") Symbols: - 1.8.8.8 Overrange Indication: Three leastsignificant digits blank
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
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
† All dollar amounts on this site are shown in US currency.
Ordering Example: (1) DP302-JF1 3-1/2 digit J Type thermocouple meter, 115 Vac power, -216 to 1400°F input range., $285.00
Part Number Builder
Option Descriptions
(1)
Model
Select DP302 for 3-1/2 digit thermocouple meters
(2)
Input Range
Select -JC1 for Type J Iron-Constantan -JC2 for Type J Iron-Constantan -105.0 to 199.9°C -JF1 for Type J Iron-Constantan -216 to 1400°F -JF2 for Type J Iron-Constantan -157.0 to 199.9°F -KC1 for Type K Chromel-Alumel -105 to 1248°C -KC2 for Type K Chromel-Alumel -105.0 to 199.9°C -KF1 for Type K Chromel-Alumel -157 to 1999°F -KF2 for Type K Chromel-Alumel -157.0 to 199.9°F -TC1 for Type T Cu-Constantan -112 to 400°C -TC2 for Type T Cu-Constantan -105.0 to 199.9°C -TF1 for Type T Cu-Constantan -170 to 752°F -TF2 for Type T Cu-Constantan -157.0 to 199.9°F
(3)
Power options
Select Nothing(leave field blank) for 115 Vac 50/60 Hz power -C1 for 230 Vac 50/60 Hz -C3C for Isolated 9 to 32 Vdc -C3E for Isolated 26 to 56 Vdc
(4)
Add-On Option
Select Nothing(leave field blank) for red LED display -G for Green LED display
NOTE: All combinations may not be valid, check spec sheet for valid part numbers.
