An OME GA Te c h n o l o g i e s Co m p a n y
DP18 Series
Model DP18-DV7
Process Indicator
INSTRUCTION
SHEET
M2104/1294
DC INSTRUMENT, 3 ½ DIGITS, ALLOWS THE READING TO BE DISPLAYED IN ENGINEERING UNITS FOR ANY DC VOLTAGE INPUT LOWER THAN 2 Vdc.
SPECIFICATIONS
DISPLAYS . . . . . . . . . . . . . . . . . . . . . . |
3½ digits, 7 segment, red LED |
HEIGHT . . . . . . . . . . . . . . . . . . . . . . . |
0.56" (14.2 mm.) |
SYMBOLS . . . . . . . . . . . . . . . . . . . . . . |
± 1.8.8.8 |
DECIMAL POINTS . . . . . . . . . . . . . . . |
Selectable by jumpers |
OVERRANGE INDICATION . . . . . . . . |
Display flashes 1999 |
INPUT CONFIGURATION . . . . . . . . . Bipolar single ZERO . . . . . . . . . . . . . . . . . . . . . . . . . Automatic SPAN ADJUSTMENT . . . . . . . . . . . . . ± 5 %
CONVERTER . . . . . . . . . . . . . . . . . . . Dual-slope, average value POLARITY . . . . . . . . . . . . . . . . . . . . . Automatic ±
SIGNAL INTEGRATION PERIOD . . . 80 ms. READ RATE . . . . . . . . . . . . . . . . . . . . 3.12 / sec.
RANGES . . . . . . . . . . . . . . . . . . . . . . . See table selection
HOLD . . . . . . . . . . . . . . . . . . . . . . . . . Optional
NOISE REJECTION NMR . . . . . . . . . 50 dB. 50/60 Hz. ACCURACY . . . . . . . . . . . . . . . . . . . . 0.15 % ± 1 count WARMUP TO RATED ACCURACY . . 2 minutes
SPAN TEMPCO . . . . . . . . . . . . . . . . . 100 ppm.
ZERO TEMPCO . . . . . . . . . . . . . . . . . 2.5 µV/°C.
OPERATING TEMPERATURE . . . . . 0 to 50 °C (32 to 122 °F) STORAGE TEMPERATURE . . . . . . . -40 to 80 °C (-40 to 176 °F) WEIGHT . . . . . . . . . . . . . . . . . . . . . . . 310 gr. (0.68 lb)
CASE MATERIAL . . . . . . . . . . . . . . . . ABS, DIN 43700, black color STANDARD POWER . . . . . . . . . . . . . 115 Vac. ± 10 %, 50/60 Hz.
POWER CONSUMPTION . . . . . . . . . 5.5 VA for AC. ELECTRICAL CONNECTIONS . . . . . Push-in cable connectors BURN-IN . . . . . . . . . . . . . . . . . . . . . . . 24 h.
FIG. 1 |
FRONT VIEW |
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SPAN |
OFFSET |
SPAN : ADJUST THE MAXIMUM READING. OFFSET : NOT IN SERVICE
SPAN ADJUSTMENT IS ACCESSIBLE BEHIND THE LOW DOOR.
REAR VIEW
FIG. 2 |
Setpoint R2 |
Setpoint R1 |
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(option) |
(option) |
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Isolated digital output |
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(option) |
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D |
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SIGNAL |
C |
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1 |
B 10 |
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INPUT |
A |
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ANALOG |
OUTPUT |
+ |
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- |
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(OPTION) |
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HOLD, latch the reading |
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display, while these pins |
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POWER SUPPLY |
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are linked |
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see instrument label |
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FIG. 3
SIGNAL CONDITIONER
R4
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C |
SIGNAL INPUT |
B |
Vdc |
A |
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THIS SIGNAL CONDITIONER ACCEPTS THE SIGNAL INPUT IN DC VOLTAGE, AND ALLOWS THE READING TO BE DISPLAYED IN ENGINEERING UNITS . IF THE ACTUAL READING IS NOT APPROPRIATE FOR YOUR REQUIREMENTS, USE THE FOLLOWING SYSTEM TO CALCULATE THE VALUE OF THE RESISTOR R4.
EXAMPLE : DISPLAY 124.8 WHEN SIGNAL INPUT IS 460 mVdc(DECIMALS MUST NOT BE CONSIDERED)
SIGNAL INPUT IN MILLIVOLTS
R4 VALUE IN OHMS
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READING |
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1248 |
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x 10.000) - 10.000 = R4 |
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Ω |
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( |
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R4 = ( |
x 10.000) - 10.000 = 17.130 |
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SIGNAL INPUT |
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460 |
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INSTALL R4 ON THE SIGNAL CONDITIONER BOARD, PLUG-IN JUMPER IN POSITION "D1" (FIG. 5), ON THE DECIMAL POINT SELECTOR AND ADJUST SPAN POTENTIOMETER,PLACED ON THE FRONT PANEL, UNTIL THE DISPLAY READS 124.8
CCD1294APC1B
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