WT sensor PC20 User manual

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PC20 Temperature and Pressure
Integrated Sensor
Features
■ With constant current and constant
voltage excitation options
■ Imported highly reliable pressure die
■ Wide temperature compensation
■ Normalized output available
■ Compensation board filled with glue
for protection against moisture
■ Φ19mm standard OEM
■ All 316L material
■ High performance, all solid, high
reliability
■ 18 months warranty period
Applications
■ Process control systems
■ Pressure calibration instruments
■ Refrigeration equipment and HVAC
control
■ Hydraulic systems and valves
■ Level measurement
■ Biomedical instruments
■ Ships and navigation
■ Aircraft and avionics systems
■ Weaponry
Notes:
1 Do not touch the diaphragm with hard
objects, which may cause damage to the
diaphragm.
2 Please read the Instruction Manual of the
product carefully before installation and
check the relevant information of the
product.
3 Strictly follow the wiring method for
wiring, otherwise it may cause product
damage or other potential faults.
4 Misuse of the product may cause danger
or personal injury.
Product overview
PC20 temperature and pressure integrated sensor is
based on PC10 and mounted with built-in platinum
resistance to accomplish simultaneous measurement of
pressure and temperature. The temperature measurement
can meet the need for high-precision temperature
compensation of the product.
Equivalent circuit
(1) Pressure output ⑵ Temperature output
Notes:
1 Do not misuse documentation.
2 The information presented in this product sheet is for reference
only. Do not use this document as a product installation guide.
3 Complete installation, operation, and maintenance information
is provided in the instructions of the product.
4 Misuse of the product may cause danger or personal injury.
Platinum resistance

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Electrical performance parameters
Pressure range -100kPa～0～10kPa…100MPa
Pressure reference Gauge pressure, Absolute pressure, Sealed gauge pressure
Excitation 1.5mA recommended for constant current
10V recommended for constant voltage
Input impedance Constant current: 2kΩ～5kΩ
Constant voltage: 3kΩ～18kΩ
Electrical connection Gold-plated KOVAR pin or silicon soft wire
Compensation temp. Constant current: 0℃～60℃(≤70kPa), -10℃～70℃(other ranges);
Constant voltage: -20℃～85℃
Operating temp. -40℃～120℃
Storage temp. -40℃～120℃
Insulation resistance ≥200MΩ/250VDC
Response time ≤1ms (up to 90%FS)
Measured medium All the liquids and gases compatible with 316L.
Mechanical vibration 20g (20～5000Hz)
Shock 100g (10ms)
Service life 10×106 (cycles)
Structural performance parameters
Diaphragm material 316L
Housing material 316L
Oil filling Silicon oil
Sealing ring NBR or fluorine rubber
Basic parameters
Item Condition Min Nominal Max Unit Note
Nonlinearity -0.3 ±0.2 0.3 %FS Note⑴
Hysteresis -0.05 ±0.03 0.05 %FS
Repeatability -0.05 ±0.03 0.05 %FS
Zero output -2 ±1 2 mV
Full scale span
output
1.5mA, 10kPa
1.5mA, other ranges
10V, 10kPa
10V, other ranges
30
60
60
98
90
100
150
102
mV
Zero temp.
coefficient
10kPa
other ranges
-2
-1.5
±1.5
±0.75
2
1.5 %FS Note⑵
Span temp.
coefficient -1.5 ±0.75 1.5 %FS Note⑵
Thermal hysteresis -0.075 ±0.05 0.075 %FS Note⑶
Long term stability -0.3 ±0.2 0.3 %FS/Year
Note:
(1) Calculate according to BFSL least square method.
(2) In the compensation temperature range, refer to 30℃ for 0℃~60℃ and -10℃~70℃, and 32.5℃, for -20℃~85℃.
(3) After passing high and low temperature, return to the reference temperature.

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Structure and dimensions
Wire color Qty Definition
Red 1 Excitation+(IN+)
Blue 1 Excitation-(IN-)
Yellow 1 Output+(OUT+)
White 1 Output-(OUT-)
Green 2 Temp. output(non polar)
Note: G: Gauge pressure, A: Absolute pressure, S: Sealed gauge pressure
Pressure range selection
Code Pressure
reference Pressure range Overpressure Burst
pressure O-ring
10k G 0～10kPa 300％FS 600％FS NBR
20k G 0～20kPa 300％FS 600％FS NBR
35k G, A 0～35kPa 300％FS 600％FS NBR
70k G 0～70kPa 300％FS 600％FS NBR
100k G, A 0～100kPa 200％FS 500％FS NBR
160k G, A 0～160kPa 200％FS 500％FS NBR
250k G, A 0～250kPa 200％FS 500％FS NBR
400k G, A 0～400kPa 200％FS 500％FS NBR
600k G, A 0～600kPa 200％FS 500％FS NBR
1M G, A 0～1MPa 200％FS 500％FS NBR
1.6M G, A, S 0～1.6MPa 200％FS 500％FS NBR
2.5M G, A, S 0～2.5MPa 200％FS 500％FS NBR
4M S 0～4MPa 200％FS 400％FS NBR
6M S 0～6MPa 200％FS 400％FS Fluorine rubber
10M S 0～10MPa 200％FS 400％FS Fluorine rubber
16M S 0～16MPa 200％FS 400％FS Fluorine rubber
25M S 0～25MPa 150％FS 400％FS Fluorine rubber
40M S 0～40MPa 150％FS 300％FS Fluorine rubber
60M S 0～60MPa 150％FS 300％FS Fluorine rubber
100M S 0～100MPa 150％FS 300％FS Fluorine rubber
N1k Omitted -100～0kPa 300kPa 600kPa NBR
N2k Omitted 0～-100kPa 300kPa 600kPa NBR
N3k Omitted ±100kPa 300kPa 600kPa NBR
N4k Omitted -100～160kPa 480kPa 900kPa NBR
N5k Omitted -100～250kPa 750kPa 1.25MPa NBR
N6k Omitted -100～400kPa 800kPa 2MPa NBR
N7k Omitted -100～600kPa 1.2MPa 3MPa NBR
N8M Omitted -0.1～1MPa 2MPa 5MPa NBR
N9M Omitted -0.1～1.6MPa 3MPa 9MPa NBR
N10M Omitted -0.1～2.5MPa 5MPa 12.5MPa NBR
O-ring
Tube for gauge
pressure sensor

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How to order
PC20 - 10k G 6w I1 Z1
Example: PC20-10kG4wI1Z1
Refer to PC20 pressure sensor, with pressure range 10kPa, gauge pressure, 6 wire, 1.5mA excitation,
temperature measuring element Pt100.
Ordering tips:
1 Pressure range can be selected higher or lower than actual conditions but should be within ±30%FS.
2 Pressure reference consists of gauge pressure, absolute pressure and sealed gauge pressure.
⑴ Gauge pressure is based on the current atmospheric pressure. Generally, it refers to the
measurement of pressure which is greater than the current atmospheric pressure. Negative
pressure is a special case of gauge pressure. It refers that there is such working condition that the
pressure of work site is lower than the current atmospheric pressure.
⑵ Absolute pressure is based on vacuum.
⑶ As for sealed gauge pressure, PC10 uses absolute pressure die for gauge pressure product based
on the atmospheric pressure of production site. For pressure range above 6MPa, gauge pressure
cannot be selected, but only sealed gauge pressure.
3 Confirm the maximum overload of the applied system, which should be less than the overload
protection limit of the sensor, otherwise it will affect the product life or even damage the product.
4 The commonly used compensation of the product is 1.5mA constant current compensation. Suggest to
select the option with priority.
5 The material and process for manufacturing negative pressure sensors are different from those of
positive pressure sensors. So gauge pressure sensors cannot be used as substitute of negative
pressure sensors.
6 For special requirements on performance parameters and functions of the product, please contact us.
Wotian reserves the right to make any change in this publication without notice. The information
provided is believed to be accurate and reliable as of this product sheet.
G = Gauge pressure
A = Absolute pressure
S = Sealed gauge
pressure
I1 = 1.5mA
U5 = 10V
6w = 6 wire
Z1 = Pt100
Z2 = Pt1000
Product model
Pressure range

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Contact us
Nanjing Wotian Technology Co.,Ltd.
Add: 5 Wenying Road, Binjiang Development Zone, Nanjing, 211161, China
Sales Manager: Wuzhou Lian
MP: 0086-13998828452
Email: [e-mail]
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