DP302-MC詳細(xì)介紹
DP302-MC
3-1/2數(shù)字熱電偶儀表，1/8 DIN
DP302-J, -K, -T
3-1/2數(shù)字熱電偶儀表，1/8 DIN
J, K or T Thermocouple Input
1° or 0.1° Resolution
°C or °F, Jumper- Selectable
0.05 Deg/Deg Cold- Junction Error
五段線性化
1毫伏/ deg線性輸出
120分貝70分貝 CMR，核磁共振
明亮的，14.2毫米（0.56“）LED顯示
顯示保持和測(cè)試
115 / 230伏交流電源
EMI / RFI的交流電源 濾波器
螺絲端子隔離帶
短104毫米（4.1“）深1 / 8 DIN案例的選擇
分離的9至32伏直流電源或26至56伏直流電源
NEMA 4（IP65）防濺式鏡頭蓋
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.
規(guī)格：
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
產(chǎn)品型號(hào)說(shuō)明
(1) (2) (3) (4)
選項(xiàng)描述
(1) Model
選擇
DP302 代表 3-1/2 digit thermocouple meters
(2) Input Range
選擇
-JC1 代表 Type J Iron-Constantan
-JC2 代表 Type J Iron-Constantan -105.0 to 199.9°C
-JF1 代表 Type J Iron-Constantan -216 to 1400°F
-JF2 代表 Type J Iron-Constantan -157.0 to 199.9°F
-KC1 代表 Type K Chromel-Alumel -105 to 1248°C
-KC2 代表 Type K Chromel-Alumel -105.0 to 199.9°C
-KF1 代表 Type K Chromel-Alumel -157 to 1999°F
-KF2 代表 Type K Chromel-Alumel -157.0 to 199.9°F
-TC1 代表 Type T Cu-Constantan -112 to 400°C
-TC2 代表 Type T Cu-Constantan -105.0 to 199.9°C
-TF1 代表 Type T Cu-Constantan -170 to 752°F
-TF2 代表 Type T Cu-Constantan -157.0 to 199.9°F
(3) Power options
選擇
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
選擇
Nothing(leave field blank) 代表 red LED display
-G 代表 Green LED display
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