An OMEGA Technologie s Com p any
M2099/1294
INSTRUCTION
SHEET
DP18 Series
Model DP18-AT2
AC Ammeter
CCD1294APC2BA
FIG. 3
ACEG
FD
B
PT1
GROSS SPAN ADJUSTMENT
SIGNAL INPUT
A
B
C
SPECIFICATIONS
DISPLAYS . . . . . . . . . . . . . . . . . . . . . . 3 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
INPUT CONFIGURATION . . . . . . . . . . . Bipolar single
ZERO . . . . . . . . . . . . . . . . . . . . . . . . . Automatic
SPAN ADJUSTMENT . . . . . . . . . . . . . . ± 5 %
CONVERTER . . . . . . . . . . . . . . . . . . . . Dual-slope, average value
SIGNAL INTEGRATION PERIOD . . . . . 80 ms.
READ RATE . . . . . . . . . . . . . . . . . . . . 3.12 / sec.
RANGES . . . . . . . . . . . . . . . . . . . . . . . See table selection fig. 3
HOLD . . . . . . . . . . . . . . . . . . . . . . . . . Optional
NOISE REJECTION NMR . . . . . . . . . . . 50 dB. 50/60 Hz.
ACCURACY . . . . . . . . . . . . . . . . . . . . 0.2 % ± 1 count
WARMUP TO RATED ACCURACY . . . 5 minutes
SPAN TEMPCO . . . . . . . . . . . . . . . . . . 150 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.
SPAN OFFSET
1
10
D
C
B
A
+
-
REAR VIEW
Setpoint R1
(option)
Setpoint R2
(option)
FRONT VIEW
FIG. 2
FIG. 1
SIGNAL
INPUT
THE INPUT ALLOWS DIRECT CONNECTION TO A CURRENT TRANSFORMER (CT) WITH A 5 A. SECONDARY, WITHOUT NEED FOR AN
INTERMEDIATE STEPDOWN.
SPAN : ADJUST THE MAXIMUM READING.
OFFSET : NOT IN SERVICE
SPAN ADJUSTMENT IS ACCESSIBLE BEHIND THE LOW DOOR.
Isolated digital output
(option)
SIGNAL CONDITIONER
COMPONENTS VIEW
RANGE SELECTION
0.01
0.1
SELECTOR S1
HOLD, latch the reading
display, while these pins
are linked
ANALOG OUTPUT
(OPTION)
POWER SUPPLY
see instrument label
0.1
1
150 150.0 G
250 250 B
400 400 C
500 500 D
600 600 E
1000 1000 F
1500 1500 G
AC AMMETER for current transformer X/5
CLOSE
RESOLUTIONREADINGI NOMINAL
Amp.AC Amp.AC JUMPER Amp.ACAmp.AC
Amp.AC
5 5.00 D
10 10.00 F
15 15.0 A
25 25.0 B
40 40.0 C
50 50.0 D
60 60.0 E
100 100.0 F
JUMPER Amp.AC
I NOMINAL READING
CLOSE
RESOLUTION
PLACE THE PLUG-IN JUMPER ON THE
SELECTOR S1, IN FUNCTION OF THE
NOMINAL CURRENT TRANSFORMER,
AND THE DECIMAL POINT JUMPER
ON THE CORRESPONDING POSITION
(FIG.5). TO OBTAIN THE INDICATED
PERFORMANCE, USE CURRENT
TRANSFORMERS CLASS 0.5 OR BETTER.
½
(32 pages)
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