The
are digital panel meters for connection of measurement for voltage (10 V) and current
(1 mA, 20 mA or 4 ... 20 mA) with 4 ranges.
Operation:
The setting of measuring range and display range is made by positioning DIP switches. The chosen input range is
user adjustable from 10% to 100 % of the full scale value by potentiometer on the rear of the meter.
Further
BETA 90A
versions from the series:
BETA 90A
F
Technical data
Display
Display range
Decimal point position
Negative display indication
“-”
Digit height
8 mm / 7-segment digits
Overload indication
last 3 digits blank
Measuring range
Direct voltage
0 ... 10 V
(input current < 100 u
A)
Direct current
0 ... 1 mA; 0 ... 20 mA; 4 ... 20 mA
(Voltage drop < 200 mV)
Range adjustment
1 : 10
Accuracy
< 0.2 % of range + 1 digit
Temperature coefficient
100 ppm / °C, plus
Zero point drift
200 ppm / °C
Supply of power
Direct voltage DC
Environmental conditions
Climatic class
Class 2 to VDE / DIN 3540
Operating temperature
0 ... 50 °C
Storage temperature
-40 °C ... +80 °C
Safety class
II to IEC 348/VDE 0411
Protections class
IP 20 to IEC EN 60 529
Front
IP 54 (IP 65 on request)
Device safety
correspond IEC EN 61 010
EMC immunity
correspond DIN EN 61 000-4-1 to 4
EMC radiated interference
correspond DIN EN 50 081 class B
Dimensions and weights
Bezel size
48 mm x 24 mm to DIN 43 718
Panel cut-out
45
+0.6 mm
x 22.2
+0.3 mm
Overall depth
69 mm
Weight
45 g approx
Sundry
Connections
Plug-in screw
BETA 90A
Voltage measurement, 4 ranges.
1999
selectable
48 V DC ( 10 % )
1.2 W, isolated
21 ... 30 V DC
1.2 W, isolated
12 V DC ( 10 % )
1.2 W, isolated
±
±
Operating Manual
BETA 90A
