EM-9421-B Rev.4
P. 1 / 3
1. GENERAL DESCRIPTIONS
The M-System’s Model 43DV1 is a small DIN size, 3 1/2 digit DC
panel meter. It utilizes a high quality one-chip LSI of dual slope
A/D conversion, which provides also simple and cost-effective
design.
The 43DV1-S offers standard process signals with zero offset,
such as 4 to 20mA DC or 1 to 5V DC. Zero elevation and span
adjustment are achieved by trimmers within the range of 1999
counts. All of the 43DV1 meters are available with a 7-segment
red LED display with 8 mm (0.31") digit height, and the display
is highly legible in all indoor applications. They utilize a single-
ended input configuration. Display hold is available with an
external control signal.
The housing is DIN standard (W48
×
H24
×
D72 mm) and easily
mountable to the panel surface by the snap-in method utilizing
flexibility of plastic.
3 1/2 DIGIT DC PANEL METER
Instruction Manual
model: 43DV1-S
Process Meter
2. SPECIFICATIONS
2-1) RANGE
MODEL
PERMISSIBLE
OVER-LOAD
43DV1-S4
0 – 10V
1M
Ω
±
250V
43DV1-S5
0 – 5V
1M
Ω
±
250V
43DV1-S6
1 – 5V
1M
Ω
±
250V
43DV1-SA
4 – 20mA
20
Ω
±
110mA
43DV1-SB
0 – 20mA
20
Ω
±
110mA
43DV1-SC
0 – 10mA
40
Ω
±
75mA
43DV1-SG
0 – 1mA
400
Ω
±
25mA
43DV1-SJ
0 – 5mA
80
Ω
±
55mA
INPUT IMPEDANCE
RANGE
2-2) GENERAL SPECIFICATIONS
*under conditions: temperature 23
°
C
±
5
°
C, humidity 20 to
85% RH
Input configuration
: single-ended
A/D conversion
: dual-slope integration with automatic zero
correction
NMRR
:
40 dB, 50/60 Hz, read rate 2.5/s
Accuracy
*
Voltage
:
±
(0.15% of
❘
reading
❘
+ 1 digit)
Current
:
±
(0.2% of
❘
reading
❘
+ 1 digit)
Temp. coefficient
:
±
(0.01% of
❘
reading
❘
+ 0.1 digits)/
°
C
Read rate
:
2.5/s
Polarity indication
: for negative only
Over-range indication
: the most significant digit indicates
"1" (>1999) or "-1" (<-1999) and other digits
blanked
LED
:
8mm (0.31") 7-segment, red
Scaling factor
: analog scaling by trimmers
Zero
:
0 to
±
1999 counts
Span
:
(zero point + 100) to +1999 counts
Decimal point position
: 3 positions selectable
Hold input
:
negative logic; 5V-CMOS, LSTTL compatible
Warm-up
:
5 minutes
Power supply
: 24V DC
±
10%, approx. 60mA at 24V DC
Operating temperature
: 0 to 55
°
C (32 to 131
°
F)
Relative operating humidity
: 20 to 85% RH (non-condensing)
Storage temperature
: -20 to +70
°
C (-4 to +158
°
F)
Relative storage humidity
: 20 to 95% RH (non-condensing)
Insulation resistance
:
≥
100M
Ω
with 500V DC
Dielectric strength
: 1000V AC @1 minute (input to power)
500V AC @1 minute (power to gnd)
Size
:
W48
×
H24
×
D72 mm (1.89"
×
0.94"
×
2.83")
Weight
:
60 g (0.13 lbs)
Housing material
: black plastic
Figure 1. Schematic diagram
INPUT
HI
LO
AMP.
±5V
±5V
SCALING
ZERO-OFFSET
CHANGEOVER
–5V
+5V
ISOLATION
ISOLATION
+
–
FG
POWER
INPUT
POLARITY &
DECIMAL POINT
HOLD INPUT
SPAN
CHANGEOVER
A / D
