Product Overview – Who Is This For and What Problem Does It Solve?
Who is this for?
If you are an end-user engineer, plant operator, system integrator, or OEM manufacturer responsible for pressure measurement in oil & gas, chemical, power generation, or metallurgical processes, the NCS-PT105II Series is built for you.
What problem does it solve?
Traditional pressure transmitters often lock you into a single communication protocol, forcing costly upgrades or complete replacements when your control system evolves. The NCS-PT105II eliminates this constraint. It is a single hardware platform that supports five protocols – HART, FOUNDATION Fieldbus (FF), PROFIBUS PA, PROFIBUS DP, and WirelessHART – allowing you to standardize on one transmitter family across multiple systems, reduce spare parts inventory, and simplify training for your maintenance teams.
Why Microcyber?
Microcyber Corporation is a national high-tech enterprise founded by the Shenyang Institute of Automation, Chinese Academy of Sciences. We are the developer of China’s first internationally certified fieldbus protocol master stack, the first domestically certified fieldbus instrument, and the first TÜV Germany-certified safety instrument. We co-established the first domestic industrial Ethernet protocol standard EPA and the first industrial wireless communication protocol standard WIA-PA, both recognized as IEC international standards. Our products and technologies have earned two National Science and Technology Progress Awards, one National Science and Technology Invention Award, and we have successfully completed more than 200 large-scale automation projects worldwide. Top-tier companies including Emerson (US), Rotork (UK), and Bifold (UK) have adopted Microcyber’s key technologies or components in their products. We are ISO 9001:2008 and ISO/TS16949 certified – when you choose NCS-PT105II, you are choosing field-proven, mission-critical technology.
Key Features
| Priority | How NCS-PT105II Delivers |
|---|---|
| Protocol Flexibility | One transmitter supports HART (4-20mA + digital), FOUNDATION Fieldbus (FF) H1, PROFIBUS PA, PROFIBUS DP, and WirelessHART. Stock one model, serve any system. |
| Measurement Versatility | Measures differential pressure, gauge pressure, absolute pressure, liquid level, and flow – one transmitter family covers your entire plant. |
| High Accuracy | ±0.075% of span reference accuracy (including linearity, hysteresis, and repeatability). For ranges with turndown up to 10:1, accuracy remains ±(0.0075 × TD)% of span. |
| Long-Term Stability | ±0.2% of span per 5 years – minimizes recalibration frequency and maintenance costs. |
| Wide Range Coverage | From 100 Pa to 40 MPa differential, 0 kPa to 40 MPa absolute, and 100 Pa to 40 MPa gauge pressure – covers virtually all industrial pressure applications. |
| On-Site Adjustment | Magnetic bar operation (Zero/Span holes) and LCD display allow full configuration – zero, span, damping, units – without a handheld communicator. |
| Explosion-Proof & Safety | Available in Ex ia IIC T4/T6 Ga (intrinsically safe) and Ex d IIC T4/T6 Gb (flameproof). IP65/IP67 protection. |
| Fieldbus-Ready | FF version supports Resource Block, Transducer Block, AI, PID, DSP, and more. PA version supports Physical Block, Transducer Block, AI Block. |
Supported Protocols – One Transmitter, Five Options
| Protocol | Key Features | Target Applications |
|---|---|---|
| HART (4-20mA) | 2-wire loop-powered, digital overlay on analog signal, point-to-point or multidrop (up to 63 devices), compatible with existing analog control systems | Retrofit projects, legacy system upgrades, general industrial use |
| FOUNDATION Fieldbus (FF) H1 | IEC 61158-2 physical layer, peer-to-peer communication, function blocks (RES, TRD, DSP, PID, AI, etc.), up to 1,900m bus length | Greenfield projects, advanced process control, chemical/pharma |
| PROFIBUS PA | Profile 3.02 compliant, cyclic/non-cyclic data exchange, up to 1,900m bus length (10km with repeaters), GSD files provided | European-origin systems, power generation, water/wastewater |
| PROFIBUS DP | PROFIBUS DP communication, device address via DIP switches, GSD file provided | PLC-based systems, high-speed discrete automation |
| WirelessHART | 3.6V battery-powered, network ID and join key configuration, Burst mode support (1s–3600s cycles), gateway integration | Remote monitoring, inaccessible locations, cost-effective installation |
Product Variants – Choose What Fits Your Application
| Model | Sensor Type | Mounting | Pressure Types |
|---|---|---|---|
| NCS-PT105IIM | Monocrystalline silicon, H-type structure | Double flange | Differential, Gauge, Absolute |
| NCS-PT105IIMS | Monocrystalline silicon | Vertical mount | Differential, Gauge, Absolute |
Pressure Type Selection:
| Code | Pressure Type | Applications |
|---|---|---|
| SG | Gauge pressure | Tank level, filter monitoring, pump discharge |
| SA | Absolute pressure | Vacuum systems, barometric reference, altitude compensation |
| SD | Differential pressure | Flow measurement (orifice plates, venturis), level, filter differential |
Technical Specifications
Basic Parameters
| Parameter | Specification |
|---|---|
| Measured Object | Liquid, gas, steam |
| Power Supply (HART) | 11.9–42 VDC / 11.9–30 VDC (intrinsically safe) |
| Power Supply (FF/PA) | 9–32 VDC / 9–17.5 VDC (intrinsically safe) |
| Power Supply (DP) | 10–30 VDC |
| Power Supply (WirelessHART) | 3.6 VDC (battery) |
| Load Resistance (HART) | 230–1100 Ω |
| Load Resistance (General) | 0–1500 Ω |
| Insulation Strength | 500 Vrms between terminal and housing |
| Display | Optional 6-digit numeric or 5-character LCD |
| Operating Temperature | -40°C to 85°C (no display, non-explosion-proof) / -30°C to 70°C (with display, non-explosion-proof) / -30°C to 60°C (Ex ia IIC T4 Ga) / -40°C to 60°C (Ex d IIC T4/T6 Gb) |
| Media Temperature | -40°C to 120°C (silicone oil fill) |
| Humidity Range | 5–95% RH |
| Startup Time | ≤8s (HART, WirelessHART) / ≤12s (PA, DP) / ≤13s (FF) |
| Refresh Time | 0.35s |
| Damping Adjustment | 0–32 seconds (time constant) |
| Protection Class | IP65 (standard) / IP67 (explosion-proof) |
| Ex Type | Ex ia, Ex d |
| EMC Compliance | GB/T 18268.1 (immunity), GB 9254 Class A (emissions) |
Performance Index – Differential Pressure Transmitter
| Nominal Range | Measurement Range | Lower Limit | Upper Limit | Static Pressure | Overload (High/Low) |
|---|---|---|---|---|---|
| 3 kPa | 100 Pa – 3 kPa | -3 kPa | 3 kPa | 4 MPa | 4 MPa / 4 MPa |
| 6 kPa | 200 Pa – 6 kPa | -6 kPa | 6 kPa | 4 MPa | 4 MPa / 4 MPa |
| 40 kPa | 400 Pa – 40 kPa | -40 kPa | 40 kPa | 10 MPa | 10 MPa / 10 MPa |
| 250 kPa | 2.5 kPa – 250 kPa | -250 kPa | 250 kPa | 10 MPa | 10 MPa / 10 MPa |
| 1 MPa | 10 kPa – 1 MPa | -500 kPa | 1 MPa | 10 MPa | 10 MPa / 10 MPa |
| 3 MPa | 30 kPa – 3 MPa | -500 kPa | 3 MPa | 10 MPa | 10 MPa / 3 MPa |
| 10 MPa | 100 kPa – 10 MPa | -500 kPa | 10 MPa | 10 MPa | 10 MPa / 3 MPa |
Reference Accuracy:
-
Ranges 250 kPa, 1 MPa, 3 MPa, 10 MPa: ±0.075% of span
-
Ranges 3 kPa, 6 kPa, 40 kPa: ±0.075% of span
Performance Index – Absolute Pressure Transmitter
| Nominal Range | Measurement Range | Lower Limit | Upper Limit | Overload |
|---|---|---|---|---|
| 40 kPa | 20 kPa – 40 kPa | 0 kPa | 40 kPa | 16 MPa |
| 250 kPa | 50 kPa – 250 kPa | 0 kPa | 250 kPa | 16 MPa |
| 1 MPa | 200 kPa – 1 MPa | 0 kPa | 1 MPa | 16 MPa |
| 10 MPa | 1 MPa – 10 MPa | 0 kPa | 10 MPa | 20 MPa |
| 40 MPa | 4 MPa – 40 MPa | 0 kPa | 40 MPa | 80 MPa |
Reference Accuracy: ±0.075% of span
Performance Index – Gauge Pressure Transmitter
| Nominal Range | Measurement Range | Lower Limit | Upper Limit | Overload |
|---|---|---|---|---|
| 3 kPa | 100 Pa – 3 kPa | -3 kPa | 3 kPa | 10 MPa |
| 6 kPa | 200 Pa – 6 kPa | -6 kPa | 6 kPa | 10 MPa |
| 40 kPa | 400 Pa – 40 kPa | -40 kPa | 40 kPa | 10 MPa |
| 250 kPa | 2.5 kPa – 250 kPa | -100 kPa | 250 kPa | 10 MPa |
| 1 MPa | 10 kPa – 1 MPa | -100 kPa | 1 MPa | 10 MPa |
| 3 MPa | 30 kPa – 3 MPa | -100 kPa | 3 MPa | 10 MPa |
| 10 MPa | 100 kPa – 10 MPa | -100 kPa | 10 MPa | 20 MPa |
| 20 MPa | 200 kPa – 20 MPa | -100 kPa | 20 MPa | 40 MPa |
| 40 MPa | 400 kPa – 40 MPa | -100 kPa | 40 MPa | 80 MPa |
Reference Accuracy: ±0.075% of span
Environmental Influence & Stability
| Parameter | Specification |
|---|---|
| Ambient Temperature Effect | ±0.075% of URL per 10°C change within -40°C to 85°C range |
| Static Pressure Effect (Range ≤6 kPa) | ±0.1% of URL per 4 MPa |
| Static Pressure Effect (Range ≥40 kPa) | ±0.1% of URL per 10 MPa |
| Power Supply Effect | Zero and span change ≤ ±0.005% of URL per volt |
| Long-Term Stability | ±0.2% of span per 5 years |
Physical Properties
| Component | Material Options |
|---|---|
| Process Connection | 1/4-18 NPT female |
| Electrical Connection | 1/2-14 NPT female |
| MOC (Wetted Parts) | 316 stainless steel, Hastelloy C, Monel, Tantalum |
| Bleed/Drain Valve | 304 SS, 316 SS |
| Flange & Connector | 304 SS, 316 SS |
| O-Ring | Nitrile rubber, Fluorine rubber |
| Fill Fluid | Silicone oil, Fluorocarbon oil |
| Bolt | Zinc-plated carbon steel |
| Housing | Low-copper aluminum alloy, polyester epoxy coating |
On-Site Adjustment – Magnetic Bar Operation
The NCS-PT105II features magnetic bar operation through two jacks marked “SPAN” and “ZERO” on top of the electronic housing. Four virtual keys are simulated:
-
[M] Mode Key – Switch between operable modes
-
[↑] Input Adjustment Key – Increment values
-
[↓] Input Adjustment Key – Decrement values
-
[Enter] Confirmation Key – Execute confirmation
Supported Adjustment Functions (HART):
-
Mode 03 – Set lower range limit with current pressure
-
Mode 04 – Set upper range limit with current pressure
-
Mode 05 – Set electronic damping (0–32 seconds)
-
Mode 06/07 – Passive range migration (lower/upper)
-
Mode 08 – Set primary variable zero
-
Mode 10 – Set transfer function
-
Mode 11 – Set measurement value display source
-
Mode 12 – Set primary variable units
Restore Factory Defaults: Insert both magnetic bars, power on, follow on-screen prompts.
Configuration & Software Support
| Protocol | Recommended Tools |
|---|---|
| HART | Microcyber HART configuration software, Emerson 475 handheld, AMS |
| FF | NI-FBUS Configurator, Emerson DeltaV, NCS4000 |
| PA | Siemens Simatic PDM, Siemens Step7 (GSD files provided) |
| DP | Siemens PDM, any PROFIBUS DP Class 2 master with GSD/EDD |
| WirelessHART | Microcyber WirelessHART configuration tool, 475 communicator (DD file required), G1100 gateway web interface |
Ordering Information
NCS-PT105IIM Selection (Pressure Type & Range)
| Model | Pressure Type | Availability |
|---|---|---|
| NCS-PT105IIM SG | Gauge pressure | ● |
| NCS-PT105IIM SA | Absolute pressure | ● |
| NCS-PT105IIM SD | Differential pressure | ● |
Communication Protocol Selection
| Code | Protocol | Description |
|---|---|---|
| H | HART | 4-20mA + digital, backward compatible with analog systems |
| F | FOUNDATION Fieldbus (FF) H1 | IEC 61158-2, peer-to-peer, advanced function blocks |
| P | PROFIBUS PA | Profile 3.02, cyclic/non-cyclic, GSD files provided |
| D | PROFIBUS DP | High-speed, DIP switch address setting, GSD provided |
| W | WirelessHART | Battery-powered, Burst mode, gateway integration |
Range Selection (Differential Pressure)
| Code | Nominal Range | Measurement Range |
|---|---|---|
| 1B | 3 kPa | 100 Pa – 3 kPa |
| 1C | 6 kPa | 200 Pa – 6 kPa |
| 1E | 40 kPa | 400 Pa – 40 kPa |
| 1F | 250 kPa | 2.5 kPa – 250 kPa |
| 1H | 1 MPa | 10 kPa – 1 MPa |
| 1K | 3 MPa | 30 kPa – 3 MPa |
| 1M | 10 MPa | 100 kPa – 10 MPa |
Complete selection tables including process connection material, housing material, explosion-proof grade, diaphragm seals (single/double side), and all options are available in the full user manual appendices.
Typical Applications
-
Oil & Gas – Pipeline pressure monitoring, wellhead pressure, custody transfer
-
Chemical & Petrochemical – Reactor pressure, distillation column differential pressure, filter monitoring
-
Power Generation – Boiler drum level, steam pressure, turbine inlet pressure
-
Metallurgy – Furnace pressure, blast furnace top pressure
-
Water & Wastewater – Pump suction pressure, filter differential, tank level
-
Pharmaceutical – Clean room differential pressure, sterile tank pressure