STI DigitalTrak2 - 3 Technical Parameters

INSTRUCTION MANUAL
DigitalTrak2™
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STI S.r.l. – Via Dei Caravaggi 15, 24040 Levate (BG) – ITALY www.imi-critical.com
Manual 4054 – rev.00 02/2021 – DT2 - 6 -
3. TECHNICAL PARAMETERS
PNEUMATIC
Air supply pressure
0.14 ÷ 0.7 mMPa
Air consumption in stable state
< 36 L / H
Air supply quality
According to ISO 8573-1
Size and density of particulates: Class 4
Oil concentration: Class 4
Dew point: Class 4 or at least 10K below
surrounding environment
Valve leakage (in fail freeze)
< 0.6 L / H
INPUT /
OUTPUT
Actuator
Single acting, double acting
Communication
HART
Input Current
4 ÷ 20mA DC, minimum input current 3.8
mA, split range start and end point
adjustable.
Feedback Output
4-20 mA DC
Digital Input
One dry contact
Digital output
Electronic switch: 2 channels
Piezo Valves Switch Time
Average failure free time: >2 billion
Output Characteristic
Linear, 1:30, 30:1, user defined (20 points)
Stroke
Linear actuator 10 ÷ 100mm
(10-20mm, 1:6 transmission ratio is optional)
Rotary actuator 30 ÷ 105°
Electrical connection
M20x1.5 or NPT1/2
Pneumatic connection
G ¼ or NPT1/4
DISPLAY
LCD
2x7 digitals, dimensions : 22x38 mm
OPERATE
Manual
3 keys on the front panel
Self tuning
Automatic calibrate the zero and span, dead
band
Self diagnostic
Show value of input current, travel time,
dead band, etc.
PRECISION
Dead band
0,1 ÷ 10% adjustable
Hysteresis
0.2% F.S.
Linearity
0.5% F.S.
ENVIRONMENT
Environmental temperature
-40 ÷ +80°C
Environmental humidity
5 ÷ 95% RH
Vibration Resistance
15 ÷ 150 Hz @2g
Enclosure degree of protection
IP65
APPEARANCE
Weight
2 kg
Dimension
170×96×96mm
Shell material
Aluminum Die Casting