Omega Speaker Systems Printer DP18 AT2 User Manual

An OMEGA Te ch n o lo gie s Co m p a n y  
DP18 Series  
Model DP18-AT2  
AC Ammeter  
INSTRUCTION  
SHEET  
M2099/1294  
AC AMMETER for current transformer X/5  
THEINPUTALLOWSDIRECTCONNECTIONTOACURRENTTRANSFORMER(CT)WITHA5A.SECONDARY,WITHOUTNEEDFORAN  
INTERMEDIATESTEPDOWN.  
SPECIFICATIONS  
FRONTVIEW  
FIG. 1  
DISPLAYS . . . . . . . . . . . . . . . . . . . . . .  
HEIGHT . . . . . . . . . . . . . . . . . . . . . . . . 0.56" (14.2 mm.)  
SYMBOLS . . . . . . . . . . . . . . . . . . . . . . 1.8.8.8  
3
digits, 7 segment, red LED  
½
DECIMALPOINTS . . . . . . . . . . . . . . . . Selectable by jumpers  
OVERRANGEINDICATION . . . . . . . . . Display flashes  
INPUTCONFIGURATION . . . . . . . . . . . Bipolar single  
ZERO . . . . . . . . . . . . . . . . . . . . . . . . . Automatic  
SPANADJUSTMENT . . . . . . . . . . . . . . ± 5 %  
SPAN  
OFFSET  
SPAN:ADJUSTTHEMAXIMUMREADING.  
OFFSET:NOTINSERVICE  
CONVERTER . . . . . . . . . . . . . . . . . . . . Dual-slope, average value  
SIGNALINTEGRATIONPERIOD . . . . . 80 ms.  
SPAN ADJUSTMENT IS ACCESSIBLE BEHIND THE LOW DOOR.  
READRATE . . . . . . . . . . . . . . . . . . . . 3.12 / sec.  
RANGES . . . . . . . . . . . . . . . . . . . . . . . See table selection fig. 3  
HOLD . . . . . . . . . . . . . . . . . . . . . . . . . Optional  
REARVIEW  
Setpoint R1  
(option)  
Setpoint R2  
(option)  
FIG. 2  
NOISEREJECTIONNMR . . . . . . . . . . . 50 dB. 50/60 Hz.  
ACCURACY . . . . . . . . . . . . . . . . . . . . 0.2 % ± 1 count  
WARMUPTORATEDACCURACY . . . 5 minutes  
SPANTEMPCO . . . . . . . . . . . . . . . . . . 150 ppm.  
ZEROTEMPCO . . . . . . . . . . . . . . . . . . 2.5 µV/°C.  
Isolated digital output  
(option)  
D
C
B
A
OPERATINGTEMPERATURE . . . . . . . 0 to 50 °C (32 to 122 °F)  
STORAGETEMPERATURE . . . . . . . . . -40 to 80 °C (-40 to 176 °F)  
WEIGHT . . . . . . . . . . . . . . . . . . . . . . . . 310 gr. (0.68 lb)  
CASEMATERIAL . . . . . . . . . . . . . . . . ABS, DIN 43700, black color  
STANDARDPOWER . . . . . . . . . . . . . . 115 Vac. ± 10 %, 50/60 Hz.  
POWERCONSUMPTION . . . . . . . . . . . 5.5 VA for AC.  
SIGNAL  
INPUT  
1
10  
+
ANALOG OUTPUT  
(OPTION)  
-
ELECTRICALCONNECTIONS . . . . . . . Push-in cable connectors  
BURN-IN . . . . . . . . . . . . . . . . . . . . . . . 24 h.  
HOLD, latch the reading  
display, while these pins  
are linked  
POWERSUPPLY  
see instrument label  
RANGESELECTION  
FIG. 3  
GROSSSPANADJUSTMENT  
PT1  
D
F
B
A
C
E
G
C
B
A
SIGNALCONDITIONER  
COMPONENTSVIEW  
SIGNALINPUT  
SELECTORS1  
I NOMINAL  
Amp.AC  
READING  
Amp.AC  
RESOLUTION  
Amp.AC  
I NOMINAL  
Amp.AC  
READING  
RESOLUTION  
CLOSE  
CLOSE  
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  
TRANSFORMERSCLASS 0.5 ORBETTER.  
Amp.AC  
JUMPER  
Amp.AC  
JUMPER  
5
5.00  
D
F
150  
250  
150.0  
250  
G
B
0.01  
0.1  
10  
10.00  
15  
25  
15.0  
25.0  
40.0  
50.0  
60.0  
100.0  
A
B
C
D
E
F
400  
500  
400  
500  
C
D
E
F
40  
600  
600  
0.1  
1
50  
1000  
1500  
1000  
1500  
60  
G
100  
CCD1294APC2BA  
 

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