Good Stability Performance 24VDC High Precision NY-EJH800
Transmitter
NY-EJH800 series metal capacitive intelligent transmitter sensor is
the introduction of foreign advanced technology production of
high-precision miniaturized intelligent sensor, in the conversion
principle of the use of digital compensation technology for
temperature, static pressure error compensation, improve the
measurement accuracy, reduce the temperature drift. reliability,
while adding advanced digital compensation and communication
functions. This makes the EJH800 intelligent transmitter series a
versatile, mid-range and high-end intelligent transmitter.
NY-EJH800 Transmitter Working Principle
NY-EJH800 series intelligent transmitter consists of two parts:
intelligent sensor and intelligent electronic board. The
intelligent sensor part includes: capacitive sensor, measuring
diaphragm detection circuit, temperature sensor and temperature
compensation circuit; the intelligent electronic board part
includes: microcomputer controller and peripheral circuit, which
completes the conversion of pressure signal to 4-20mA dc.
NY-EJH800 Transmitter Technical parameters
| Typical application | Liquid, gas, steam |
| Accuracy grade | 0.1grade, 0.2grade, 0.15grade, 0.25grade |
| Power supply | 24VDC |
| Signal output | 4 to 20mA dc output, superimposed HART protocol digital signal
(two-wire system) |
| Temperature range | -40～85P |
| Relative Humidity | 0～95% |
| Damping time | 0.2 to 32s adjustable |
| Volume change volume | < 0.16cm³ |
| Diaphragm material | 316 stainless steel, Hastelloy C, Monel alloy and tantalum |
| Start-up time | 3s |
| Protection level | IP65 |
| Explosion-proof grade | Exd ll BT5; Exia ll CT5(optional) |
NY-EJH800 Transmitter Design Feature
1. Powerful flexibility and enhanced functionality due to the use
of microprocessors.
2. Mileage covers large 0-100Pa～42MPa
3. Enables local adjustment of zero and range, as well as remote
adjustment via remote hand-operator and computer.
4. Improving the measurement accuracy better than 0.1/0.2 level,
with a range ratio of 40:1.
5. 2-wire system, in line with the HART protocol can be interrupted
communication with the HART protocol without interrupting the
output.
the use of digital compensation technology to compensate for
temperature and static pressure.
6. Good stability performance, high precision, adjustable damping.
High resistance to one-way overload.
7. No mechanical transmission parts, low maintenance workload,
sturdy and anti-vibration.
8. All common parts, easy maintenance.
9. The diaphragm material in contact with the medium is optional,
safe and explosion-proof, and can be used all-weather.
