DP302-JC2瑭崇窗(x矛)浠嬬垂
DP302-JC2
3-1/2鏁�(sh霉)瀛楃啽闆诲伓鍎€琛�锛�1/8 DIN
DP302-J, -K, -T
3-1/2鏁�(sh霉)瀛楃啽闆诲伓鍎€琛�锛�1/8 DIN
J, K or T Thermocouple Input
1掳 or 0.1掳 Resolution
掳C or 掳F, Jumper- Selectable
0.05 Deg/Deg Cold- Junction Error
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The DP302-J, -K and -T are 3-1/2 digit (卤1999 count) panel meters for thermocouple types J, K and T. They are available for display in 掳C or 掳F and resolution of 1掳 up to 1999掳 or 0.1掳 up to 199.9掳. They are recommended for demanding indication-only applications where exceptionally low-cost is required. For display up to 1999.9掳 with 0.1掳 resolution, OMEGA?. recommends its DP3002 Series meters, which provides a 4-1/2 digit (卤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 掳C or 掳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 掳C or 掳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.
瑕�(gu墨)鏍硷細
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 卤20掳C ( 卤36掳F)
Cold-Junction Tempco: 卤0.05 deg/deg
Sensor-Wire Resistance Effect Per Conductor:
Type J: 40 渭deg/deg/惟, up to 2500 惟
Type K: 50 渭deg/deg/O, up to 2000 惟
Type T: 50 渭deg/deg/O, up to 2000 惟
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掳C (1掳 resolution models)
Range for Rated Accuracy:
Type J: - 138 to 760掳C (- 216 to 1400掳F)
Type K: - 105 to 1248掳C (- 157 to 1999掳F)
Type T: - 112 to 400掳C (- 170 to 752掳F)
Maximum Error: 卤1.5掳C (卤2.7掳F) 卤1/2 count
Span Tempco: 卤0.01% of reading/掳C
Resolution: 0.1掳C or 0.1掳F (jumper-selectable)
Full-Scale Step Response: 1 s
Warmup to Rated Accuracy: 10 min
Accuracy at 25掳C (0.1掳 resolution models)
Range for Rated Accuracy, all T/C Types: - 105.0 to 199.9掳C (- 157.0 to 199.9掳F)
Maximum Error: 卤1.0掳C (卤1.8掳F) 卤1/2count
Span Tempco: 卤0.01% of reading/掳C
Resolution: 0.1掳C or 0.1掳F (jumper-selectable)
Full-Scale Step Response: 1 s
Warmup to Rated Accuracy: 20 min
Analog Output (Linearized)
Voltage: 1 mV/count
Calibration Error: 卤1.5 mV on 掳C, 卤2.7 mV on 掳F
Current: 1 mA max
Source Resistance: 68 惟
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, 卤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 卤5%, 10 mA max
Environmental
Operating Temperature: 0 to 60掳C
Storage Temperature: - 40 to 85掳C
Relative Humidity: 95% at 40掳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
鐢�(ch菐n)鍝佸瀷铏熻鏄�
(1) (2) (3) (4)
閬搁爡(xi脿ng)鎻忚堪
(1) Model
閬告搰
DP302 浠ｈ〃 3-1/2 digit thermocouple meters
(2) Input Range
閬告搰
-JC1 浠ｈ〃 Type J Iron-Constantan
-JC2 浠ｈ〃 Type J Iron-Constantan -105.0 to 199.9掳C
-JF1 浠ｈ〃 Type J Iron-Constantan -216 to 1400掳F
-JF2 浠ｈ〃 Type J Iron-Constantan -157.0 to 199.9掳F
-KC1 浠ｈ〃 Type K Chromel-Alumel -105 to 1248掳C
-KC2 浠ｈ〃 Type K Chromel-Alumel -105.0 to 199.9掳C
-KF1 浠ｈ〃 Type K Chromel-Alumel -157 to 1999掳F
-KF2 浠ｈ〃 Type K Chromel-Alumel -157.0 to 199.9掳F
-TC1 浠ｈ〃 Type T Cu-Constantan -112 to 400掳C
-TC2 浠ｈ〃 Type T Cu-Constantan -105.0 to 199.9掳C
-TF1 浠ｈ〃 Type T Cu-Constantan -170 to 752掳F
-TF2 浠ｈ〃 Type T Cu-Constantan -157.0 to 199.9掳F
(3) Power options
閬告搰
Nothing(leave field blank) 浠ｈ〃 115 Vac 50/60 Hz power
-C1 浠ｈ〃 230 Vac 50/60 Hz
-C3C 浠ｈ〃 Isolated 9 to 32 Vdc
-C3E 浠ｈ〃 Isolated 26 to 56 Vdc
(4) Add-On Option
閬告搰
Nothing(leave field blank) 浠ｈ〃 red LED display
-G 浠ｈ〃 Green LED display
DP302-JC2
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