Sifam Tinsley BETA 90A Operating Manual

The BETA 90A 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
Voltage measurement, 4 ranges.

Technical data

Display
Measuring range
Supply of power
Environmental conditions
Dimensions and weights
Sundry
BETA 90A
Operating Manual
Display range
Decimal point position
Negative display indication
Digit height
Overload indication
Direct voltage
Direct current
Range adjustment
Accuracy
Temperature coefficient
Zero point drift
Direct voltage DC
Climatic class
Operating temperature
Storage temperature
Safety class
Protections class
Front
Device safety
EMC immunity
EMC radiated interference
Bezel size
Panel cut-out
Overall depth
Weight

Connections

1999
selectable
"-"
8 mm / 7-segment digits
last 3 digits blank
0 ... 10 V
(input current < 100 u
A)
0 ... 1 mA; 0 ... 20 mA; 4 ... 20 mA
(Voltage drop < 200 mV)
1 : 10
< 0.2 % of range + 1 digit
100 ppm / °C, plus
200 ppm / °C
48 V DC ( 10 % ) ±
21 ... 30 V DC
12 V DC ( ± 10 % )
Class 2 to VDE / DIN 3540
0 ... 50 °C
-40 °C ... +80 °C
II to IEC 348/VDE 0411
IP 20 to IEC EN 60 529
IP 54 (IP 65 on request)
correspond IEC EN 61 010
correspond DIN EN 61 000-4-1 to 4
correspond DIN EN 50 081 class B
48 mm x 24 mm to DIN 43 718
45 x 22.2
+0.6 mm +0.3 mm
69 mm
45 g approx
Plug-in screw
1.2 W , isolated
1.2 W, isolated
1.2 W, isolated