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ACT-2I & ACT-2V
AC Input, Two-Wire Transmitter
Operator’s Manual
Contents:
1. Calibration
2. Connection
3. Mechanical
4. Specifications
1. Calibration Instructions
1.1 The ACT-2 coarse ranging is factory set.
The Zero and Span potentiometers located on the
unit’s front panel are used for fine tuning.
1.2 Calibration instrumentation:
1. 24Vdc power supply
2. AC voltage/current calibrator
3. High accuracy DVM
4. Small screwdriver
Connect the transmitter to be calibrated according to fig. #1.
Fig. #1
a. Set calibrator to 0 output
b. Adjust with the Zero potentiometer to obtain an output current of 4.000mA
c. Set the calibrator to I/V maximum.
d. Adjust with the Span potentiometer to obtain an output current of 20.000mA
e. Repeat steps a to d until satisfactory results are achieved.
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2. CONNECTION DIAGRAM
ACT-2V ACT-2I
3. DIMENSIONS
4. Specifications
ACT-2I
INPUT: AC current
INPUT SPAN: 0-1Aac, 0-5Aac (RMS)
INPUT BURDEN: 0.26VA at 5Aac
INRUSH CURRENT:
40Aac (RMS) max. for 8 sec/10min
75Aac (RMS) max for 1 sec/ 10min
ISOLATION: 2.5KV (RMS)/1 minute
ACT-2V
INPUT: Voltage input
INPUT SPAN: 0-400Vac (RMS)
INPUT BURDEN:
1.4VA at 250Vac, 0.3VA at 120 Vac
ISOLATION: 2.5KV (RMS)/1 minute
GENERAL SPECIFICATIONS
OUTPUT RANGE: 4-20mA
TEST TERMINALS: 40-200mV represents 4-20mA
SUPPLY VOLTAGE:
10-32Vdc, reverse polarity protected
SUPPLY AND LOAD VARIATION EFFECT:
< ±0.03% of span for full change
LOOP DRIVE: Rmax (Ω) = (Vsup-10)/0.02
RESPONSE TIME: 220msec. (0-98% of span)
OUTPUT RIPPLE: Better than 0.1% of span RMS
FREQUENCY: 40- 60 and 400 Hz
ACCURACY (2-100% of input span):
±0.1% of span for pure sinusoidal input
FINE ADJUSTABILITY:
Zero: ±35% of span (minimum)
Span: ±25% of span (minimum)
CMR: 122 dB typical, 117 dB
minimum
TEMPERATURE STABILITY:
±0.015% of span/1°C
OPERATING AMBIENT: 32 to 158°F
(0-70°C)
STORAGE TEMPERATURE: -13 to 185°F
(-25 to +85°C)
HUMIDITY:
5-95% relative humidity, non-condensing
PROTECTION LEVEL:
Box: According to IP-50 DIN 40050
Terminals: According to IP-10 DIN 40050
MOUNTING: Standard 35mm DIN rail
WEIGHT: 0.5lb (0.2Kg)
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