Vaisala Differential Pressure Transmitter
PDT102
M211285EN-F ___________________________________________________________________________________ 1
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WARNING - READ BEFORE INSTALLATION
Vaisala Differential Pressure Transmitter PDT102 is a high-performance
instrument designed primarily for use in life science and cleanroom
applications. PDT102 is not authorized for use as a critical component in life
support devices or systems. Consult Vaisala before installing if there are any
questions or concerns.
Overpressure
: Pressure spikes in excess of the rated overpressure capability
of the transmitter may cause irreversible electrical and/or mechanical damage
to the transmitter.
Static electrical charges
: To avoid damage to the transmitter the
operator/installer should follow proper ESD (electrostatic discharge)
protection procedures.
TECHNICAL SPECIFICATION
Performance
Measurement range (bidirectional)
±50 Pa or
±0.25 in H
2
O
Overpressure
Proof pressure
0.7 bar
Burst pressure
1.7 bar
Static pressure
1.7 bar
Pressure type
Differential, gauge, vacuum and compound
Accuracy
(incl. non-linearity, hysteresis,
repeatability and zero/span
calibration settings)
0.25 % span
or 0.5 % span,
depending on choice
Repeatability
for 0.25 % span accuracy
0.03 %
for 0.5 % span accuracy
0.05 %
Electrical resolution
1 x 10
-4
span
Long-term stability
≤0.5 % span/year
Response time (10...90 %)
250 ms
Warm-up time
15 s
Compensated temperature range
+2...+57 °C
(+35.6...+134.6 °F)
Temperature dependence
±(0.036 Pa + 0.036 % of reading)/°C
or
±(0.0001 inH
2
O + 0.02% of reading)/°F
(reference 21 °C or 70 °F)
Mounting position error (zero adjustable)
≤0.25 %
Adjustments (front accessible)
Zero (span low)
±5 % span
Span (span high)
±3 % span
Operating environment
Operating temperature
-29...+70 °C (-20.2...+158 °F)
Storage temperature
-40...+82 °C (-40...+179.6 °F)
Electromagnetic compatibility
EN61326-1, Basic immunity
test requirements
Note: If used in an electromagnetic field of 3 V/m, with narrow frequency area
of 80 - 120 Mhz, it is possible that the current output of PDT102 can deviate
max. 0.3 % (with accuracy specified 0.25%).
Inputs and outputs
Process connection
1/8 NPT female according to ANSI/ASME B1.20.1
Output signal
2-wire
4...20 mA
3-wire
0...5 V
Operating voltage
12...36 VDC
Max. loop resistance for 4...20 mA
≤ (Supply voltage - 12V)/0.022 A
Supply current
for 0...5 V output
max. 10 mA
for 4...20 mA output
max. 20 mA
Electrical connection
Screw terminals, 12...22 AWG (0.33 up to 3.31 mm
2
)
Mechanics
Medium (measured gas)
Clean and dry air, non-conducting and
non-corrosive gases
Material
Process connection
Brass
Sensor element
Silicon, aluminum, glass
Case
Polycarbonate, glass filled (UL94-V-1)
Mounting
DIN rail EN 50022, EN 50035 and EN 50045
Housing classification
IP30
Weight
0.16 kg
MOUNTING
When securing to EN50022 rail first hook the top portion of the rear clip onto
the top of the rail and push gently into place. To remove, simply place finger
behind lower rear lever and pull forward. To remove from the EN50035 rail,
grasp the unit, push up, and rotate the bottom out. For the EN50045, pull
down and rotate the bottom out.
Multiple units can be stacked across the rail. Internal circuitry is vented
through the bottom of each unit. Tag holes are fabricated into the lower rear
lever and the housing below the terminal strip for calibration reference tagging
and/or ID location.
125.99
Span
Zero
V+ V– Out
22.6
99.6
80.8
Figure 1
Dimensions (in mm)
134.4
Span
Zero
V+ V– Out
22.6
99.6
80.8
Test:
+
-
Figure 2
Dimensions with Process Valve Actuator and
Test Jacks (in mm)
