HT3051DP Intelligent Remote Differential Pressure TransmitterUsed to measure the liquid level, density, and pressure of liquids, gases, or vapors, and then convert them into 4-20mA DC signals for output.
1. Performance specifications

Zero benchmark calibration range, under reference conditions, filled with silicone oil and 316L stainless steel isolation diaphragm. )
1.1. Reference accuracy
± 0.2% calibration range
1.2. stability
6 months, ± 0.2% URL
1.3. Environmental temperature impact
Zero point error: ± 0.2% URL/56 ℃
Overall error: ± (0.2% URL+0.18% calibration range)/56 ℃
1.4. Static pressure effect
The zero point is ± 0.5% URL/6895kPa.
1.4.1. zero point:
For range codes 4 and 5, the URL is ± 0.2% at 13790kPa, and ± 0.25% URL for other ranges. Zero point error can be corrected online through zero adjustment.
1.4.2. Range:
Can be corrected to ± 0.25% output reading/6895kPa
1.5. Vibration impact:
In any axial direction, the vibration effect at 200Hz is ± 0.05% URL/g
1.6. Power supply impact:
Less than ± 0.005% output range/volt.
1.7. Load impact:
There is no load impact unless there is a change in the power supply voltage.
1.8. Electromagnetic interference/radio frequency interference (EMI/RFI impact)
When the field strength reaches 30V/M from 20 to 1000MHz,
Output drift is less than ± 0.1% of the range.


2. Functional specifications
2.1. measuring rangeRefer to the selection table
2.2. Zero point and range
It can be adjusted using the local range and zero buttons, or remotely using a HART controller

2.5. Environmental temperature limit
Without LCD meter head: -40 to 85 ℃
Equipped with LCD meter head: -20 to 60 ℃
2.6 Process temperature limit
Ordinary silicone oil -40 to 149 ℃
High temperature silicone oil 15 to 315 ℃
Fluorine oil -45 to 205 ℃
Inert liquid -18 to 177 ℃
2.7. Storage temperature limit
Without LCD meter head: -46 to 110 ℃
Equipped with LCD meter head: -40 to 70 ℃
2.8. ambient humidity
0-100% relative humidity
2.9. Static pressure and overpressure limit
Applying a pressure of 0 to 13.79MPa on either side of the transmitter will not cause damage. When operating within the static pressure range of 3.45kPa to 13.79MPa, it meets the performance specifications.
2.10. Volume change amount
Less than 0.16cm3