An O ME GA Te c h n o l o g i e s Co m p a n y
M2106/1294
INSTRUCTION
SHEET
DP18 Series
Models DP18-RV1 / - RV2 / - RV3 / - RV4
True RMS Voltmeter
CCD1294APC2BA
1
10
D
C
B
A
+
-
REAR VIEW
Setpoint R1
(option)
Setpoint R2
(option)
FRONT VIEW
FIG. 2
FIG. 1
SIGNAL
INPUT
SPAN : ADJUST THE MAXIMUM READING.
OFFSET : NOT IN SERVICE
SPAN ADJUSTMENT IS ACCESSIBLE BEHIND THE LOW DOOR.
Isolated digital output
(option)
HOLD,
latch the reading
display, while these pins
are linked
ANALOG OUTPUT
(OPTION)
POWER SUPPLY
see instrument label
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 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 . . . . . . . . . . . . . . . . . . . . 0.2 % ± 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. / 3.5 W for DC
ELECTRICAL CONNECTIONS . . . . . . . Push-in cable connectors
BURN-IN . . . . . . . . . . . . . . . . . . . . . . . 24 h.
½
SPECIFICATIONS
SPAN
OFFSET
FIG. 3
RANGE SELECTION
H J L
IC2
IC1
200 mVac
2 Vac
È
È
Ç
Ç
CONNECT SIGNAL INPUT, BETWEEN A-B or A-C
IN FUNCTION OF THE VOLTAGE INPUT
CLOSE THE APPROPRIATE DECIMAL POINT JUMPER (FIG.5), CORRESPONDING TO THE RANGE SELECTED
PUT THE S1 SELECTOR PLUG-IN JUMPER, IN THE RANGE DESIRED.
K
200 mV
DISPLAY
READING
RESOLUTION
mV.
CLOSE JUMPER
AMPLIFIER DECIMAL POINT
FIG. 3 FIG. 5
IMPEDANCE
Ω
D3
D3
-----
D2
D1
RANGE
Vac.
A-B
A-C
DP18-RV4
DP18-RV1
DP18-RV2
DP18-RV3
MODEL
S1 SELECTOR
TRUE-RMS INSTRUMENT 3½ DIGITS, WITH FIVE SELECTABLE RANGES ON THE SIGNAL CONDITIONER BY PLUG-IN JUMPERS. THE
READING CAN NOT BE MODIFIED IN ENGINEERING UNITS,UNLESS THE AMPLIFIER IS ALSO MODIFIED. THEREFORE USING THE
STANDARD AMPLIFIER THE DISPLAY WILL SHOW EXACTLY THE VALUE PRESENT AT THE INPUT SIGNAL.
A
B
C
SIGNAL CONDITIONER
COMPONENTS VIEW
I K
2 V
20 V
200 V
500 V
K,L
H,L
I,L
J,L
1
10
100
1000
0.1
10 G
Ω
3.3 M
Ω
3 M
Ω
1.999 V
19.99 V
199.9 V
500 V
1.999 mV
20 Vac
200 Vac
500 Vac
