HN-1851DR Low Differential Pressure Transmitter
HONZEN INSTRUMENTS · HN-1851DR
HN-1851DR Low Differential Pressure Transmitter
The HN-1851DR is designed for low differential-pressure measurement, with S1 and S2 sensor ranges listed in the catalogue.
Overview
The HN-1851DR is designed for low differential-pressure measurement, with S1 and S2 sensor ranges listed in the catalogue.
Key Features
- Monocrystalline silicon sensor with static-pressure and temperature compensation.
- Two-wire 4–20 mA DC + HART output.
- Local three-button and remote configuration; LCD is listed as an ordering option.
- Choice of isolating diaphragm materials.
Technical Specifications
| Parameter | Catalogue value |
|---|---|
| Measured media | Liquids, gases and steam |
| Output signal | 4–20 mA DC + HART, two-wire |
| Reference accuracy | ±0.075% at the standard calibrated range |
| Power supply | 10.5–45 V DC, general purpose; 10.5–26 V DC, intrinsically safe |
| Allowable load | 0–600 Ω at 24 V DC |
| Ingress protection | IP66 |
| Isolating diaphragm options | SUS316L, Hastelloy C-276, tantalum, gold-plated |
| Process connection | 01: 1/4 NPT female; 02: M20 × 1.5 male; 03: 1/2 NPT female |
Measuring range
| Sensor code | Measuring range | Maximum working pressure |
|---|---|---|
| S1 | −1 to +1 kPa | 1 MPa |
| S2 | −6 to +6 kPa | 25 MPa |
Applications
For the corresponding pressure, differential-pressure or level duties in petroleum, petrochemical, chemical and power applications. Confirm the medium and installation conditions for each selection.
Dimensions
Dimensions and units are as marked on the technical drawings below.
Model Selection / Ordering Information
| Item | Code | Description |
|---|---|---|
| Output | H | 4–20 mA + HART digital communication |
| Sensor code | S1 | −1 to +1 kPa; 1 MPa |
| Sensor code | S2 | −6 to +6 kPa; 25 MPa |
| Isolating diaphragm options | SS | SUS316L |
| Isolating diaphragm options | HC | Hastelloy C-276 |
| Isolating diaphragm options | TA | tantalum |
| Isolating diaphragm options | GD | gold-plated |
| Process connection | 01 | 1/4 NPT female |
| Process connection | 02 | M20 × 1.5 male |
| Process connection | 03 | 1/2 NPT female |
Catalogue ordering example: HN-1851DR-H-S1-SS-01-01-D-H-TG
Request a Quote
Please provide the process medium, measuring span, process pressure, temperature, wetted material, connection and hazardous-area requirements for selection review.
Technical data from Pressure and Differential Pressure Transmitters catalogue, PDF pages 16–19.