2088 Smart Absolute Pressure Transmitter

Output Analog

Two-wire 4~20mA DC

Digital quantity

Two-wire 4~20mADC and overlay digital signal in line with the HART protocol

Power supply

24V DC, 12~36V DC, 18.5~220V DC, AC 50HZ, 45V

Load limit

Loop Rmax maximum load resistance depends on the power supply voltage. HART communication require the load resistance no less than 250Ω, and no more than 600Ω

Communication distance

The maximum communication distance is 1.5Km, Multistation communication can take up max15 units smart pressure transmitter

Output display

Four digital display, five LCD display, pointer type

Explosion-proof form

Basic type:ExiaII CT5; Explosion-proof type

Zero shift range

Zero point can be arbitrary positive transfer and negative transfer, but the upper and lower limit of measurement range and pressure range should not be set exceeded

Temperature Range

Environmental temperature: -40~85℃  (-20~70℃ when select LCD indicator)

Medium temperature

-40 ~ 104℃

Static and Unidirectional pressure range

3.45Kpa(absolute pressure)  31.2MPa(gauge pressure)

Relative humidity

5~98%RH

Start time

Start in 5 second

Capacity changes

less than 0.16cm3

Damping adjustment

0.20~25

Fault alarm

If there is a breakdown of sensor or circuit, automatic diagnosis function will automatically output 3.9 or 21.0 mA

Configuration protection

In order to avoid the transmitter is randomly change the configuration data, can lock the stored data by software or protection switch

Reference conditions

Zero as the lower limit and no migration, the temperature is 25 ℃, the atmospheric pressure, 24 VDC power supply, silicone oil, isolation diaphragm 316 stainless steel, data setting range is the same as the upper and lower limit range

Note

the instructions include linear precision, the influence of hysteresis and repeatability

Accuracy

±0.1%(The error is less than 0.1% of full scale)

Stability

±0.1% URL/year

Temperature effect

±0.05% (URL + 0.05% range) / 20 ℃

Static Pressure effects

Zero Error: the URL / 0.1 to 6.9 MPa

Vibration impact

Can stand a vibration of 200Hz frequency in any axia, cause a error is ±0.05%URL

Power supply

The adjustable range is less than 0.005% / V

Load impact

No load effect

Installation position effect

About 250Pa zero migration, can be eliminate by calibration, no scale effect

Radio frequency interference

in the 30-1000 MHZ frequency and maximum field strength under the condition of 10 v/m, caused by drift is ±0.1% of adjustable range

Isolation diaphragm

316L stainless steel, Hastelloy, Monel or tantalum

Vent and drain valve

316 stainless steel, hartz alloy, monel or tantalum

Flange and transition joints

Cadmium plating, carbon steel galvanized steel, 316 stainless steel, Hastelloy alloy

"O" Ring

Fluorine rubber

Filled liquid

silicone oil

Screw bolt

galvanized carbon steel

Electrical shell

low copper aluminum alloy

"O" Ring

Nitrile butadiene rubber

Coating

polyester epoxy resin

Flange pressure

1/4 - 18 NPT thread

Transition joint lead pressure

1/2-14 NPT thread

Conduit connections

M20X1.5, 1/2-14, NPT thread

Weight

2 kg (not including optional)