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Digital Draft Indicator
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DIGITAL DRAFT
INDICATOR |
To
Cater to the Specific need of Draft measurement, a
innovative reliable / rugged product to replace the conventional
moving coil draft indicator has been designed with the following
salient features.
SALIENT FEATURES
| Input
: |
Direct Impulse Tubing
(Air and dry Application) |
| Display
: |
31/2 Digital |
| Bargraph
: |
30 LED Bargraph
Indicator |
| Zero
and Span : |
Adjustable,
Non-interactive |
| Output
: |
4-20 mA
(Optional) |
| Alram
Control : |
Hi-Lo Contacts
(Optional) |
TECHNICAL SPECIFICATIONS
| Input : |
Air & Dry Gases |
| Power
Supply : |
230 Vac + -10%, 50 Hz |
| Range : |
0 to 1999 mmWC for
pressure
0 to 760 mmHg for Suction |
|
Repeatability : |
0.5% of full scale |
| Digital
Display : |
31/2 digit, 12.5 mm
height red led |
| Bargraph
Display : |
30 Led Bargraph for 0
to 100% |
|
Retransmission Output : |
4 to 20 mA
(Nonisolated) |
| Pressure
Sensor : |
Solid state
piezoresistive |
| Operating
Temperature : |
10 to 50 Deg C |
| Operating
Humidity : |
90% Rh (Noncondinsing) |
| Overall
Dimensions : |
72 (W) x 144 (H) x 250
(D) mm |
| Panel
Cutout : |
68 (w) x 138 (h) |
| Pressure
Connection : |
1/4" Bsp (Back of
instrument) |
| Mounting : |
Flush Panel |
| Weight : |
1.75 kgs,approx |
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Application : |
a) Boiler draught
measurement.
b) Calibratio of Pressure Instrument
c) Differential Pressur across fitters
d) Digital Manometer
e) HVAC / Clean room monitoring |
TYPICAL PRESSURE SENSOR
CHARACTERISTICS
Sensor
Solid State * Piezoresistive
Operating Temp
-20 Deg C to + 75 Deg C
Sensitive at 25 Deg C
3.0 mV / v / PSi
Combined Linearity & Hysterisis
+ 0.2 % FS
Response Time (10% to 90%) |
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