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362A Series Monocrystal Silicon Absolute Pressure Transmitter
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362A Series Monocrystal Silicon Absolute Pressure Transmitter

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• Adopt MEMS monocrystal silicon high-precision pressure sensor
• With high response speed and stability
• Measurement accuracy 0.04 - 0.075%FS
• The max. range ratio can reach to 20:1
• Provide standard HART bus communication mode
• Sophisticated self-diagnosis and telecommunication function
• Highlighted LCD with backlight
• Local display screen which can rotate by 360º
• Convenient local zero clearing function
• Convenient local zero point, extreme point setting and calibration function
• Convenient local current loop calibration function

Functional parameter
    Measurement of liquid, gas and steam

Range ratio
Max. 20:1

Load limit

Note: The supply voltage range of transmitter with backlight display is 14.5~45V
    The supply voltage range of intrinsic-safety series transmitter is 14.5~28V.
    The working voltage while HART communication should be larger than 17.5V.

Power supply
Need external power supply. While the transmitterhas no load, working voltage is  14.5-36V.

Positive and negative transference of zero point
The zero point can transfer between the barometric pressure and range upper limit or 0KPa and range upper

limit. In addition, the calibration range should be larger than or equal to the min. range and the range upper limit

cannot be larger than URL (range upper limit).

Time response
Time constant: 200ms
Delay time:<0.1s
Refresh rate: 20times/s (min.)

Temperature limit
Silicon oil sensor: -40℃ to 121℃
Inert liquid sensor: -30℃ to 121℃

-20℃~+70℃ (Ordinary)
-40℃~+85℃ (The highest)
-46℃ to 110℃
-40℃ to 85℃ (liquid crystal header)

Humidity limit
0-100% relative humidity

Starting time
Output range
2s, doesn't need preheat.

Fault mode
Output code
While discovering the faults of sensor or microprocessor by self diagnosis, the transmitter will output one

high or low alarm signal to prompt the users. The alarm output value is subject to the factory configuration

mode of transmitter:
    Linear output: 3.8<I<20.8
C4: I=20.8mA  high fault
CN: I=3.8mA  low fault

Performance index
(Zero-base range, reference conditions, silicone oil filling liquid, 316 stainless steel isolation diaphragm)

Accuracy index
0.075%FS (Standard provided option), including the influence of linearity, hysteresis and repeatability
0.1%FS (above 20MPa)
0.065%FS (high-precision option, under 10MPa)

Damping time
Set the time constant according to the actual condition of field. It is suggested to be 1s.


Temperature drift

Long-term stability
≤0.02%FS/5 years

Influence of vibrations
Less than 0.065%URL, condition of vibration test: peak-peak value 4mm (5-15Hz)
Accelerated speed 2g (15-150Hz) and 1g (150-2000Hz)

Influence of power supply
<0.01% range/v

Influence of installation position
The changing of installation position, which is parallel to the surface of diaphragm, will not cause the

effect of null shift. If the change between the installation position and the surface of diaphragm does not

exceed 90°, the null shift within 0.4KPa can be corrected by zero setting without influencing the range.

Limit of transient voltage protection
 Electromagnetic compatibility accords with the national standard:
IEC6100-4-2 Electrostatic discharge immunity test       IIIB
IEC6100-4-4 Electrical fast transient pulse clusters 
                       antinterference test                                   IIIB                       
IEC6100-4-5 Surge (shock) immunity test            IIIB

General index
Test according to IEC801-3

Mechanical perfomance index

Electrical interface
ANSI (American Standard), NPT1/2(F) internal resistance 
ISO (Chinese standard), M20×1.5 internal thread

Process interface
NPT1/2(F)internal thread, NPT1/2(M)external thread, M20×1.5 external thread/inner bore Φ3 (standard),

M20×1.5 external thread/inner bore Φ10 (viscous medium)

Material of process connecting piece
Isolation diaphragm
316 stainless steel, hastelloy C

Process interface
316L stainless steel CF-3M

Non-connecting piece 
Aluminium die casting IP65
Spraying plastics
Meter cap O-ring
Nitrile rubber
Filling liquid
Silicone oil or inert liquid

About 1.11kg

Wiring diagram of terminal side


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