4-20ma pressure transmitter

Range code

Range

Measuring range

Min.

Max.

4

0.374KPa

37.4KPa

-37.4~37.4KPa

5

1.868KPa

186.8KPa

-186.8~186.8KPa

6

6.9KPa

690KPa

-690~690KPa

7

20.68KPa

2068KPa

-2068~2068KPa

8

68.9KPa

6890KPa

-6890~6890KPa

Output

Analog output: two –wire 4-20mADC

Digital output: two –wire 4-20mADC and superimposing variable digital signal accord with HART

Power supply

supply voltage 12.5-45VDC

Limit load

Max load resistor Rmax in loop decided by the supply voltage, see the below drawing. HART PROTOCOL require the load resistor not less than 250Ω,not more than 600Ω

Communication distance

Max. 1.5Km, multi-address communication can connect 15 smart transmitters Max.

Display

4 digital display,5 digit LCD display, pointer type.

Explosion-proof

ExiaIICT5;explosion suppression type

Zero offset

Can positive transfer or negative transfer, but can not overstep the utmost value

Temperature

ambient temperature -40-85°C(When choose LCD : -20-70°C)

Medium temperature

-40~104°C

Filled oil operating Tem.

Silicon oil:-29~+149°C  inert oil:-18~+204°C

Static pressure and single side overpressure

3.45KPa(Absolute)~13.78MPa

Relative humidity

5~98%RH

Run-up time

less than 5 sec.

Capability change

Less than 0.16cm3

Damp adjust

0.20~25 second

Reference condition

In the condition : No offset, 1.53m capillary fill with silicon oil, 316SS diaphragm

Temperature influence

remote transmission fitting( typical) one side with(1.53m capillary remote transmission fitting)

Flat pattern

error is less than 0.62Kpa/55°C,capillary fill with silicon oil, the error increase 0.2 KPa along with the length increase 1.53m

Thread and Flange pattern

error is less than 1.99Kpa/55°C,capillary fill with silicon oil, the error increase 0.62 KPa along with the length increase 1.53m

Vibration influence

withstand frequency 200Hz at any direction, arouse error ±0.05%URL

Power influence

<0.005%/V

Load influence

no load influence

Mounting position influence

about 250Pa zero offset, can be eliminate via calibration, no range influence.

RF interference

drift is ±0.1%span in the condition of 30-1000MHz frequency and the most field intensity 10V/m