What is the fundamental difference between HS-420 and HS-100? Which should I choose?

HS-100 outputs raw mV/g vibration signal and requires a vibration analyzer, signal conditioner or online data collector — suitable for spectrum analysis and bearing/gear fault diagnostics. HS-420 processes the signal inside the sensor and outputs 4-20 mA, connecting directly to your existing PLC, DCS or SCADA analog inputs with no extra hardware. Decision rule: 'I only need trend monitoring (high/low vibration level) for alarm/shutdown' → HS-420 . 'I'll do frequency-based fault diagnostics' → HS-100 (or the dual-output HS-421) .

What is the difference between HS-420 and HS-421? Is dual output necessary for me?

HS-420 outputs only 4-20 mA RMS velocity (single output — for PLC trend tracking). HS-421 is dual output — provides both 4-20 mA velocity (continuous PLC monitoring) and a parallel AC acceleration signal (for periodic spectrum analysis with a portable analyzer or online system). AC frequency response is 2 Hz – 10 kHz ±5%, bias voltage 3 Vdc nominal. Decision rule: 'I'll only send trend to PLC' → HS-420 . 'I do routine spectrum analysis on top of PLC trends (portable analyzer in the field or online system)' → HS-421 . HS-421 delivers two layers of monitoring over a single cable — optimal for facilities advancing their CBM program.

What is the difference between models outputting 4-20 mA proportional to velocity (mm/s) vs acceleration (g)?

HS-420 outputs 4-20 mA proportional to RMS velocity (mm/s) — ISO 10816 is designed around this unit and is the standard for general vibration level monitoring on low/medium-speed rotating equipment (motors, pumps, fans, compressors). HS-422 outputs 4-20 mA proportional to acceleration (g) — ISO 20816 recommends acceleration-based monitoring for catching high-frequency events (bearing faults, gear mesh defects, cavitation, turbine blade cracks). Decision rule: 'General machine health monitoring, ISO 10816 reporting' → HS-420 . 'Bearing/gear fault tracking, high-frequency, ISO 20816' → HS-422 . Modern CBM programs use both together: HS-420 for trend, HS-422 for early warning.

Should I choose single-axis or triaxial? When is HS-473 / HS-483 needed?

Single-axis sensors (HS-420 family) measure vibration on one axis from one mount — simple, economical, sufficient for most standard pump/motor/fan applications. Triaxial sensors (HS-473 velocity, HS-483 acceleration) measure in parallel on X, Y and Z axes from a single mount; three discrete 4-20 mA signals reach the PLC via an 8-pin M12 connector. Critical on complex machinery (gearboxes, generators, turbine blades, kiln fans, helicopter rotors) because knowing which axis carries the imbalance speeds up root-cause analysis. Cost advantage too: one triaxial + one cable is more economical than three single-axis sensors + three cables, with installation time cut to roughly one-third.

In hazardous areas, should I choose HS-420I-M (Ex ia) or HS-420d (Ex d)?

Both are ATEX/IECEx certified but use different protection methods. HS-420I-M (Intrinsically Safe / Ex ia) operates with low-energy circuitry — mandatory installation with Hansford HS-IJE junction enclosure and HS-AA022 IS barrier. The right choice if you already have IS barrier infrastructure or are committing to the Ex ia standard plant-wide. HS-420d (Flameproof / Ex d) is ExVeritas 24ATEX1830X certified (EX II 2G Ex db IIC T6/5/4 Gb); its flameproof robust housing eliminates the IS barrier — cable runs directly through the M16 Ex d cable gland. If you're building ATEX installation from scratch or want to save on barrier costs, HS-420d is more practical. The decision depends on plant infrastructure and total installation cost.

What does the HS-429 on-site trip relay do? Can't I do this with HS-420?

HS-420 sends 4-20 mA to the PLC; alarm/shutdown decision is made in PLC logic and applied via PLC output (relay/contactor). HS-429 has two adjustment dials on the sensor body (vibration threshold + trigger delay 1 sec – 1 min); when the threshold is exceeded, the built-in relay drives the contactor directly — no PLC needed. Typical use: small facilities, remote stations, installations without PLC budget; or as an independent secondary safety layer that works even if the PLC fails. HS-429 also provides a 4-20 mA output — so if you want, both PLC monitoring and local trip can come from the same sensor. Maximum shock rating 100 g (compact robust housing), IP67 protection.

Does cable length affect the signal? How far can I mount the sensor from the PLC?

Because 4-20 mA is a loop-powered current loop, cable length does not degrade signal accuracy (unlike voltage-based sensors). The only constraint: maximum loop resistance at 24 V supply is 600 Ohms — on standard shielded twisted-pair cable (e.g., 0.5 mm² Cu) this works fault-free up to 1000 metres . For longer runs (1000-2000 m), raise supply voltage to 28-30 V or use thicker cable (1.0 mm² Cu). Practical calc: Vdc ≥ Vmin_sensor + (Imax × R_loop) → 15 V + (0.020 A × R_loop). With 30 V supply, R_loop max ≈ 750 Ω. Shield should always be grounded at one point (not at the sensor, but in the PLC/DCS panel).

When is the 316L stainless steel (L) option required?

The standard HS-420 already has a stainless steel housing, but 316L is preferred in: food (HACCP, FDA, EU 1935/2004 compliant processes), pharmaceutical (exposed to CIP/SIP cleaning), marine/offshore (salt spray), high-chloride chemicals (chemical and petrochemical lines). Thanks to its molybdenum content, 316L is significantly more resistant to pitting and crevice corrosion than standard stainless steel. Cost premium is typically 10-15% — the investment pays back quickly in aggressive environments. The 316L option is available across the HS-420 family (HS-420L, HS-421L, HS-422L, HS-473L, HS-483L).

How do I read temperature from T / RT / ST / SRT models?

There are two temperature output types. T model outputs ambient/surface temperature as a 0-1 V analog signal at 10 mV/°C — covering 0-100°C. Conversion to 4-20 mA requires the Hansford HS-540 signal conditioner module. RT model has an integrated Pt100 RTD and measures temperature directly via 4-wire connection — wire directly into your DCS Pt100 input, no extra module. S combinations (ST = Side Exit + T, SRT = Side Exit + RT) provide the same temperature options for side-exit housings. Decision rule: 'My PLC/DCS has Pt100 input' → RT/SRT . 'I only have 4-20 mA input cards' → T/ST + HS-540 module . Combining bearing temperature with vibration trend significantly raises early fault detection rates.

What is the difference between ISO 10816 and ISO 20816? Which should I reference?

ISO 10816 (legacy series, 1995-2009) evaluates general machine vibration in RMS velocity (mm/s) — standard for low/medium-frequency (10 Hz – 1 kHz) equipment such as pumps, fans, motors. Zone classes (A/B/C/D) are determined by machine category. ISO 20816 (current series, 2016+) is replacing ISO 10816 and supports both velocity- and acceleration-based evaluation; better at catching high-frequency components (bearings, gears, rolling elements). HS-420/473 are ISO 10816 compliant; HS-422/483 are ISO 20816 compliant. Practical recommendation: choose based on whichever your facility's approval protocol references; modern CBM programs use both together (10816 for trend, 20816 for early warning).

What is Hansford HS-420? What does it do?

The Hansford HS-420 is a family of 4-20 mA loop-powered vibration transmitters manufactured by Hansford Sensors, a UK-based vibration monitoring specialist. It measures RMS velocity (mm/s) vibration on industrial rotating equipment (pumps, motors, fans, compressors, gearboxes) and outputs the result as a standard 4-20 mA current loop directly to PLC, DCS or SCADA systems. Key technical specifications: Output: 4-20 mA loop-powered (2-wire), industry-standard current loop Supply: 15-30 VDC (typical 24 VDC PLC standard) Measurement: RMS velocity mm/s or in/s (user-selectable) Frequency range: 10 Hz – 1 kHz (ISO 10816 compliant) Sensor technology: PZT piezoelectric, no moving parts Protection rating: IP67 (standard) / IP69K (washdown option) Housing: Stainless steel (316L optional) Operating temperature: -55°C to +125°C Shock rating: 5000 g max Standards compliance: ISO 10816-3, ISO 13373-1, EN 60529 IP67 Certifications: CE, UKCA (standard); ATEX/IECEx (HS-420I-M intrinsically safe or HS-420d flameproof variants) Typical applications: Condition-Based Maintenance (CBM), vibration trend monitoring, alarm/shutdown systems, Industry 4.0 condition monitoring projects. Mounted on every rotating asset including pumps, fans, motors, compressors, gearboxes, cooling towers. Where to buy in Turkey: The authorized distributor of Hansford Sensors in Turkey is IMB Electric . Stock supply from İstanbul İkitelli OSB, engineering support, accredited calibration and warranty processes managed locally. Contact: info@imbelectric.com · +90 (212) 544 59 59.

Where can I buy Hansford HS-420 in Turkey? Who is the authorized distributor?

The authorized distributor of Hansford HS-420 in Turkey is IMB Electric Mühendislik ve Dış Ticaret A.Ş. IMB Electric is listed as the Turkey representative on Hansford Sensors' official global distributor network . IMB Electric services for Hansford HS-420: Stock delivery: Most popular HS-420 variants in stock at İstanbul İkitelli OSB warehouse — 24-48 hour delivery Out-of-stock models: 2-3 week supply from Hansford UK factory Engineering support: Application-based model selection consulting (right HS-420 variant for pump/motor/fan) Accredited calibration: TÜRKAK-scope periodic calibration (2-year recommended interval) ATEX documentation: Turkish certificate files for HS-420I-M (Ex ia) and HS-420d (Ex d) variants Warranty processes: Local management of Hansford lifetime warranty Field training: Installation + calibration training on request Turkish technical documentation: Datasheet summaries and installation guides Authorization region: Turkey + Middle East (UAE, Saudi Arabia, Qatar, Kuwait, Oman, Bahrain, Iraq, Iran, Lebanon, Jordan) + North Africa (Egypt, Libya, Tunisia, Algeria, Morocco, Sudan) + Western Asia (Azerbaijan, Armenia, Georgia, Kazakhstan, Turkmenistan, Uzbekistan, Tajikistan, Kyrgyzstan). Contact: Email: info@imbelectric.com Phone: +90 (212) 544 59 59 Web: imbelectric.com Address: İkitelli OSB, İstanbul, Türkiye Verify authorization: IMB Electric's status as Turkey authorized distributor of Hansford Sensors can be verified on Hansford's official global distributor page: hansfordsensors.com/find-a-distributor/

Compare Hansford HS-420 with Wilcoxon 786A, PCB 640B02, and IMI 622B01

Hansford HS-420, Wilcoxon 786A, PCB Piezotronics 640B02, and IMI Sensors 622B01 are all four brands competing in the industry-standard 4-20 mA loop-powered vibration transmitter market. HS-420's key differentiators: Feature Hansford HS-420 Wilcoxon 786A PCB 640B02 IMI 622B01 Output 4-20 mA, RMS velocity (mm/s) 4-20 mA, velocity 4-20 mA, velocity 4-20 mA, velocity Frequency range 10 Hz – 1 kHz 2 Hz – 1 kHz 3 Hz – 1 kHz 2.5 Hz – 1 kHz Warranty Lifetime 5 years 3 years 3 years Output variants 7 sub-series (HS-420, 421 dual, 422 acc, 473/483 triaxial, 420d Ex d, 429 trip) Limited (786A + 786LF) Limited (640B series) Limited (622B series) ATEX options Two paths: Ex ia (HS-420I-M) + Ex d (HS-420d) Only Ex ia Only Ex ia Only Ex ia On-site trip relay Yes (HS-429) No No No Temperature output Yes (RT/T/SRT/ST variants) No No No Triaxial Yes (HS-473/483) No (separate model) No (separate model) No (separate model) Turkey authorized distributor IMB Electric (from stock) No authorized / indirect supply No authorized / indirect supply No authorized / indirect supply HS-420 Strategic Advantages: Product family breadth: 7 sub-series in one catalog — velocity, acceleration, dual, triaxial, ATEX, trip-relay. Complete solution from a single distributor. Lifetime warranty: 3-5× longer than competitors. Total Cost of Ownership (TCO) is significantly lower. Two ATEX paths: Choose by facility. Wilcoxon/PCB/IMI offer only Ex ia — unusable without barrier infrastructure. HS-429 trip relay: Unique in the market — on-site alarm/shutdown without PLC. Critical for small facilities. From Turkey stock: IMB Electric İstanbul İkitelli OSB stock delivery in 24-48 hours. Competitors take 4-8 weeks for import. Conclusion: In standard industrial applications, the HS-420 + IMB Electric stock combination offers significant advantages over Wilcoxon, PCB, and IMI in product breadth, supply lead time, warranty, and price-performance.

Which Hansford HS-420 variant is best for pump vibration monitoring?

For standard industrial centrifugal pumps, the Hansford HS-420 Top Exit + 4-Pin M12 version (order code: HS-420 / TS029) is the most common choice. Why HS-420 is Standard Choice for Pump Monitoring? RMS velocity (mm/s) output directly matches ISO 10816-3 pump vibration limits (Class II large machines: zone A <2.8 mm/s, zone D >7.1 mm/s) 10 Hz – 1 kHz frequency range covers natural frequency band of pump imbalance, misalignment, and looseness faults 4-20 mA loop-powered connects directly to your facility's existing PLC analog input IP67 protection suits humid pump room environment (centrifugal pump leakage, sweating) Stainless steel housing standard industrial corrosion resistance Variant Recommendations by Pump Type: Pump Type Recommended Variant Reason Standard centrifugal pump HS-420 / TS029 (Top Exit 4-Pin M12) Standard installation, M12 quick connect Food/pharma pump (CIP) HS-420L (316L stainless) FDA, EU 1935/2004 compliance Also monitor bearing temperature HS-420RT (4-20 mA + Pt100) Single sensor — both vibration and temperature Hazardous area (Zone 1/2) HS-420d (Ex d flameproof) No barrier needed, direct installation Existing Ex ia infrastructure HS-420I-M (Intrinsically Safe) Use existing barrier + enclosure infrastructure Also doing spectrum analysis HS-421 (dual output) Both trend and spectrum on one cable Multiple pumps, no PLC HS-429 (on-site trip) On-site alarm/shutdown Typical Pump Monitoring Architecture: HS-420 mounted on pump motor bearing (drive end or non-drive end) with M8 stud M12 4-pin cable connects to PLC analog input card as 24 VDC + 4-20 mA ISO 10816 thresholds defined in PLC logic (e.g., >7.1 mm/s = shutdown alarm) Trend graph displayed on SCADA/HMI Predictive maintenance (CBM) plan based on historical data IMB Electric Pump Application Support: 1000+ pump HS-420 installation references in Turkey across food, chemical, water treatment, power plant, and general industry facilities. Contact us for free application consulting .

How do I select Hansford HS-420 for electric motor vibration monitoring? What's a typical CBM application?

The Hansford HS-420 family is the most commonly used 4-20 mA vibration transmitter family for Condition-Based Maintenance (CBM) on industrial electric motors. Typical installation includes 2 sensors on motor drive end (DE) and non-drive end (NDE) bearings + optionally 1 sensor on rotor axis (2-3 sensors total per motor). HS-420 Variant Recommendation by Motor Type: Motor Power / Type Recommended HS-420 Variant Typical Sensor Count 0.5-15 kW small motor HS-420 (basic monitoring) 1 (DE bearing) 15-75 kW medium motor HS-420 + HS-420RT (temperature) 2 (DE + NDE) 75-500 kW large motor HS-421 (dual output) 2-3 (DE + NDE + axial) 500 kW+ critical motor HS-473 (triaxial) 2 (DE + NDE) + axial ATEX Zone 1/2 (chem/petro) HS-420d or HS-420I-M 2 (DE + NDE) Marine / offshore HS-420L (316L) 2 (DE + NDE) Predictive Maintenance Architecture: Sensor mounting: M8 stud onto motor bearing cap perpendicular or horizontal axis Signal collection: 4-20 mA → PLC analog input card (e.g., Siemens S7-1500 SM 1234, Schneider M340 BMX AMI 0410, Allen-Bradley CompactLogix 1769-IF8) Data logging: SCADA historian (e.g., AVEVA System Platform, Wonderware InTouch, Siemens WinCC) Analysis: Trend graph, ISO 10816 limit check, automatic alarm email CBM decision: Bearing life estimation (RUL — Remaining Useful Life), planned maintenance date optimization ISO 10816-3 Motor Classification: Class I: <15 kW motor — A: <1.8 mm/s, B: 1.8-4.5 mm/s, C: 4.5-7.1 mm/s, D: >7.1 mm/s Class II: 15-75 kW motor — A: <2.8 mm/s, B: 2.8-4.5 mm/s, C: 4.5-7.1 mm/s, D: >7.1 mm/s Class III: >75 kW rigid foundation — A: <1.8 mm/s, B: 1.8-2.8 mm/s, C: 2.8-4.5 mm/s, D: >4.5 mm/s Class IV: >75 kW flexible foundation — A: <2.8 mm/s, B: 2.8-4.5 mm/s, C: 4.5-7.1 mm/s, D: >7.1 mm/s Typical Motor Monitoring Projects in Turkey (IMB Electric References): Cement plant kiln motors (500 kW+) — HS-473 triaxial Steel mill rolling motors — HS-420d (ATEX) Food plant mixer motors — HS-420L (316L) Chemical pump motors — HS-420I-M (Ex ia) Textile spinning machine motors — HS-420 standard Power plant coal crusher motors — HS-421 dual output IMB Electric Motor Monitoring Support: We prepare free sensor selection reports for your facility's motor inventory and existing PLC infrastructure.

Which PLC and DCS systems are compatible with Hansford HS-420?

Because Hansford HS-420 provides standard 4-20 mA loop-powered industrial output, it is compatible with all modern PLC, DCS, BMS, and SCADA systems. 4-20 mA has been the industry-standard analog signal interface since 1972 and is supported by all major automation platforms worldwide. Verified Compatible PLC Brands: Brand Typical Analog Input Card HS-420 Connection Siemens S7-1200 SM 1231 AI 4×13bit 2-wire 4-20 mA, 24 VDC common supply Siemens S7-1500 SM 1231 AI 8×13bit, SM 1234 2-wire 4-20 mA + input isolation Siemens S7-300/400 SM 331, SM 431 2-wire for legacy PLC Schneider Modicon M340 BMX AMI 0410, BMX AMI 0810 4 or 8 channels 4-20 mA Schneider M580 BMEAHI0812 HART-enabled 4-20 mA Allen-Bradley CompactLogix 1769-IF8, 1734-IE4C 8 channels 4-20 mA Allen-Bradley ControlLogix 1756-IF8, 1756-IF16 16 channels 4-20 mA Mitsubishi MELSEC Q Q64AD 4 channels current input Omron NX/NJ NX-AD4203 4 channels 4-20 mA ABB AC500 AI523 16 channels 4-20 mA Beckhoff TwinCAT EL3024, EL3068 EtherCAT 4-20 mA terminal Wago I/O System 750-457, 750-468 4 channels 4-20 mA Phoenix Contact Inline ILB ETH 24 DI16 DIO16-2TX Multi analog combination Verified Compatible DCS Systems: Honeywell Experion PKS — UFS, IFS analog inputs Emerson DeltaV — M-series, S-series I/O Yokogawa Centum VP — VI Net analog input cards ABB Ability System 800xA — AI810, AI820 cards Siemens PCS 7 — ET 200M I/O SCADA Platforms: AVEVA System Platform (former Wonderware) — 4-20 mA via OPC Inductive Automation Ignition — via OPC UA Iconics GENESIS64 — OPC HDA historian Siemens WinCC OA — direct PLC connection GE Digital iFIX — 4-20 mA tag mapping Installation Note — Power Supply: Because HS-420 is loop-powered, the PLC analog input card must provide 24 VDC supply (already built into most modern cards). NO separate power supply needed. IMB Electric Integration Support: We have completed HS-420 integration projects on all the above PLC/DCS platforms in Turkey. Request a PLC-specific configuration guide .

Which international standards does Hansford HS-420 comply with?

The Hansford HS-420 family fully complies with the core international standards for industrial vibration monitoring. Core Standards Compliance: Standard Title HS-420 Compliance ISO 10816-1/3 Mechanical vibration — Evaluation of rotating machinery RMS velocity (mm/s) measurement, 10 Hz – 1 kHz, zone classes A/B/C/D compliant ISO 20816-1/3 Current successor of ISO 10816, velocity + acceleration HS-422 (acceleration), HS-483 (triaxial acceleration) support this standard ISO 13373-1 General guidelines for vibration monitoring Loop-powered transmitter architecture standard-compliant ISO 13373-2 Process equipment vibration measurement procedures HS-420 sampling rate + frequency range compliant API 670 Machinery Protection Systems (American Petroleum Institute) HS-421 dual output suitable for API 670 trip + analysis design EN 60529 (IEC) IP protection class IP67 standard, IP69K option (washdown) EN 61326-1 EMC (Electromagnetic Compatibility) for industrial measurement devices Industrial-grade EMC immunity certified EN 60068-2-6 Vibration durability test 20 g, 10 Hz – 2 kHz, 10 cycles tested EN 60068-2-27 Shock durability test 100 g / 11 ms, 100 shocks tested; up to 5000 g on some models 2014/30/EU EMC Directive EU EMC directive CE mark — compliant 2014/35/EU LVD Low Voltage Directive CE mark — compliant 2014/34/EU ATEX Equipment for explosive atmospheres HS-420I-M (Ex ia) and HS-420d (Ex db) variants certified IECEx Scheme International Ex certification HS-420I-M and HS-420d IECEx certified UKCA UK conformity mark (post-Brexit) All HS-420 variants UKCA marked Certification Details: HS-420d ATEX: ExVeritas 24ATEX1830X — EX II 2G Ex db IIC T6/5/4 Gb HS-420d IECEx: IECEx EXV 24.0042X HS-420I-M ATEX: EX II 1 G Ex ia IIC T4 Ga (Zone 0) HS-420I-M IECEx: IECEx compliant intrinsically safe HS-420I-M (Mining): EX I M1 Ex ia I Ma — Group I Class M1 mining compliant Accredited Calibration: In Turkey, IMB Electric provides ISO 17025 scope HS-420 calibration through TÜRKAK-accredited lab partnerships. Certificate available on request. Food and Pharma Compliance (for HS-420L 316L variant): FDA 21 CFR (food-contact approved material) EU 1935/2004 (food contact materials) HACCP (Hazard Analysis and Critical Control Points) compliant facilities EHEDG (European Hygienic Engineering & Design Group) guidelines compliant Official certificate copies: Request from IMB Electric — info@imbelectric.com

What is the price of Hansford HS-420? How do I get a quote?

Hansford HS-420 prices vary by chosen variant, quantity, and delivery time. No per-item catalog price list is published; project-based quotation is standard. HS-420 Pricing Factors: Base model: Standard HS-420, dual HS-421, triaxial HS-473, or ATEX HS-420d Connector: 2-Pin MS (most economical), 4-Pin M12 (medium), 8-Pin M12 triaxial (highest) Cable: Integral PUR (standard), FR (flame retardant), HFFR (low-smoke halogen-free), FEP (high-temperature), Braided (armoured) Cable length: Standard 2-5 m, long distance (10-50 m) extra cost Temperature option: Standard, T (analog), RT (Pt100) — extra cost Housing material: Standard stainless, L (316L stainless) — extra cost Certification: Standard, ATEX (Ex ia I-M or Ex d) — extra cost Quantity: 1-10 units vs 50+ units — graduated discount Delivery time: From stock (fastest, IMB Electric Turkey) vs Hansford UK factory (2-3 weeks) vs custom order (4-6 weeks) Quote Process via IMB Electric: Clarify your need: Which equipment? (pump/motor/fan/gearbox) How many sensors? Which PLC? Is ATEX required? Contact us: Email ( info@imbelectric.com ) or phone (+90 212 544 59 59) Free engineering support: Application-based correct model recommendation (wrong variant choice → re-order + time loss) Official quote (24-48 hours): Detailed price + delivery time + options Order confirmation: PO or proforma invoice Delivery: From stock 24-48 hours / Factory 2-3 weeks Warranty and support: Hansford lifetime warranty managed locally Information Needed for Quick Quote: Equipment type (pump, motor, fan, gearbox, compressor) Number of sensors Output preference (velocity mm/s or acceleration g) Single-axis or triaxial ATEX requirement (Zone 0/1/2) PLC/DCS brand and model Facility location (Turkey + region) Expected delivery date Urgent order? For urgent needs, the most popular HS-420 variants are in stock at İstanbul İkitelli OSB : HS-420 Top Exit + 4-Pin M12, HS-420 Top Exit + 2-Pin MS, HS-420 Side Exit. These configurations ship in 24-48 hours. Bulk and OEM Projects: Custom pricing + long-term stock reservation for 50+ unit orders or repeat OEM projects. Our Advantage: As an authorized distributor direct from Hansford UK, vs competitor channels (grey market, indirect import): Official warranty process Verified calibration certificate Faster delivery Turkish engineering support Local technical service

B2B · PRODUCT SERIES · HANSFORD SENSORSREF · IMB · HANSFORD SENSORS · 4-20 MA VIBRATION SENSORS / TRANSMITTERS

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Hansford Sensors · PRODUCT SERIES

Hansford HS-420 Family4-20 mA Loop-Powered Vibration Transmitters

The Hansford HS-420 family — preferred by 1000+ facilities across Turkey, Middle East, North Africa, and Western Asia — is the industry-standard 4-20 mA vibration transmitter family for pumps, motors, fans, compressors, and gearboxes.

IMB Electric, the authorized Hansford Sensors distributor in Turkey, manages the HS-420 family end-to-end from field deployment and spare parts to accredited calibration and ATEX documentation.

The Hansford Sensors HS-420 family is a line of 4-20 mA loop-powered industrial vibration transmitters that connect directly to PLC and SCADA systems. With 12-30 Vdc two-wire supply and true RMS velocity output, it is the industry standard for continuous condition monitoring.

Built in a 316L stainless steel housing with IP67 protection, ATEX/IECEx Ex ia variants (I, M, IT) are available for hazardous-area duty. Temperature-output models (T, RT, ST) provide a second channel via PT100 or 10 mV/°C from a single sensor.

Specified across pumps, fans, motors, gearboxes, cooling towers and compressors for CBM programs; available with M12 4-pin or 2-Pin MS connectors, or integral FR/PUR/HFFR/FEP cable — and covered by a manufacturer warranty against production and material defects (period per OEM contract).

Pump & fan monitoringElectric motorsGearboxesCooling towersCompressorsCondition-based maintenanceATEX / IECEx hazardous areaPLC / SCADA integration

REFERENCE SPECIMEN4-20 MA VIBRATION SENSORS / TRANSMITTERS · 01

LOOP-POWERED4-20 mA TRANSMITTERHANSFORD SENSORS

Models

Configurable

Output

4-20 mA loop-powered

Supply

15-30 Vdc, 2-wire

Housing / Ingress

316L stainless steel · IP65 / IP67 / IP68

Certifications

CE · RoHS · ATEX Ex ia / Ex d

Measurement

RMS velocity (mm/s) · Acceleration (g) · Triaxial X/Y/Z

Temperature Output

PT100 (RT/SRT) · 10 mV/°C (T/ST)

Connector

M12 (4/5/8-pin) · MS (2/3-pin) · Terminal Head · PUR/Braided/Silicon/FR/HFFR/FEP

Min Resonance

5 kHz

HS-420 · 4-20 mA Velocity Output Industrial Accelerometer

4-20 mA velocity transmitter · ISO 10816 · loop-powered · ATEX options

13 MODELS2,184 PRODUCTS

SHARED IN THIS GROUPOutput:4-20 mA RMS velocityRange:0-10 to 0-100 mm/sSupply:Loop-powered 15-30 VdcStandard:ISO 10816Min Resonance:5 kHzHousing:Stainless steelProtection:IP65 / IP67 / IP68ATEX:I-M / d options

Model	Feature	Additional Features	Datasheet
HS-420	Standard	Dikey montajlı	Datasheet (PDF) — HS-420

HS-420F	Filtreli	Yüksek frekans bastırma özelliği	Datasheet not uploaded yet — HS-420F

HS-420I	Ex-Proof	ATEX I-M IECEx Ex ia	Datasheet not uploaded yet — HS-420I

HS-420S	Yatay Standard	316L SS Gıda/İlaç sektörüne uyumlu	Datasheet (PDF) — HS-420S

HS-420P	Tepe Değerli	Peak Range	Datasheet (PDF) — HS-420P

HS-420PP	Üst-Alt Tepe Değerli	Peak to Peak Range	Datasheet (PDF) — HS-420PP

HS-420L	316L Paslanmaz Çelik	316L SS Gıda/İlaç sektörüne uyumlu	Datasheet (PDF) — HS-420L

HS-420T	Sıcaklık Çıkışlı	4-20mA hız ve 10 mV/°C 0-100°C	Datasheet (PDF) — HS-420T

HS-420M	Maden (Grup I)	Maden Sektörüne Özel / ATEX	Datasheet (PDF) — HS-420M

HS-420IT	Ex-Proof, Sıcaklık Çıkışlı	ATEX ve 10 mV/°C / Tehlikeli Ortamlar	Datasheet (PDF) — HS-420IT

HS-420RT	PT100 Sıcaklık Çıkışlı	4-20mA hız ve PT100 Çıkışlı	Datasheet (PDF) — HS-420RT

HS-420ST	Yatay, Sıcaklık Çıkışlı	Yatay montajlı dar alanlar için	Datasheet (PDF) — HS-420ST

HS-420SRT	Yatay, PT100 Çıkışlı	Dar alanlara özel, 4-20mA ve Sıcaklık çıkışı	Datasheet (PDF) — HS-420SRT

HS-420d · ATEX Ex d Flameproof 4-20 mA Velocity Accelerometer

ATEX Ex d flameproof · ExVeritas certified · barrier-free installation · Zone 1/2

1 MODELS180 PRODUCTS

SHARED IN THIS GROUPOutput:4-20 mA velocitySupply:15-30 VdcATEX:EX II 2G Ex db IIC T6/5/4 GbCertificate:ExVeritas 24ATEX1830XHousing:FlameproofProtection:IP68Cable Gland:M16 Ex dTerminal:ScrewIsolation:500 V

Configurator	Model	Feature	Additional Features	Datasheet
	HS-420D	Standard	Dikey montajlı	Datasheet (PDF) — HS-420D

HS-421 · Dual Output 4-20 mA Velocity + AC Acceleration Accelerometer

Dual output · 4-20 mA velocity + AC acceleration · continuous monitoring + spectrum analysis

5 MODELS735 PRODUCTS

SHARED IN THIS GROUPOutput:Dual: 4-20 mA velocity + AC accelerationRange:0-10 to 0-100 mm/sSupply:15-30 Vdc + 3 Vdc biasAC Frequency:2 Hz – 10 kHzStandard:ISO 10816Housing:Stainless steelProtection:IP65 / IP67 / IP68Submersible:100 m

Model	Feature	Additional Features	Datasheet
HS-421	Çift Çıkış: 4-20 mA hız + AC ivme	Dual output: 4-20 mA velocity + AC acceleration (100 mV/g, 2 Hz – 10 kHz). AC bias 3 VDC, AC kanal için ayrı 18-30 VDC besleme. Datasheet: TS213 / TS214.	Datasheet (PDF) — HS-421

HS-421I	Ex-Proof, Çift Çıkış	ATEX/IECEx Ex ia + dual output (4-20 mA velocity + AC 100 mV/g). AC bias 3 VDC, ayrı 18-30 VDC besleme. Datasheet: TS213/TS214.	Datasheet (PDF) — HS-421I

HS-421S	Yatay, Çift Çıkış	Yan giriş gövdesi · 4-20 mA velocity + AC 100 mV/g · AC bias 3 VDC + 18-30 VDC ek besleme · 316L SS gövde. TS213/TS214.	Datasheet (PDF) — HS-421S

HS-421T	Sıcaklık + Çift Çıkış	4-20 mA hız + AC ivme (100 mV/g) + PT100 sıcaklık. AC bias 3 VDC, ayrı 18-30 VDC besleme. TS213/TS214.	Datasheet (PDF) — HS-421T

HS-421SRT	Yatay, Sıcaklık + Çift Çıkış	Yan giriş + 4-20 mA hız + AC ivme + PT100. AC bias 3 VDC, 18-30 VDC ek besleme. Dar alan kurulumları için. TS213/TS214.	Datasheet (PDF) — HS-421SRT

HS-422 · 4-20 mA Acceleration (g) Output Industrial Accelerometer

4-20 mA acceleration transmitter · ISO 20816 · high-frequency monitoring · bearings and gears

8 MODELS1,110 PRODUCTS

SHARED IN THIS GROUPOutput:4-20 mA RMS accelerationRange:0-1 to 0-100 gSupply:Loop-powered 15-30 VdcStandard:ISO 20816Min Resonance:5 kHzHousing:Stainless steelProtection:IP65 / IP67 / IP68ATEX:I-M optionalSubmersible:100 m

Configurator	Model	Feature	Additional Features	Datasheet
	HS-422	Yüksek Frekans Standard	Geniş bant 10 Hz – 10 kHz · ISO 20816 uyumlu yüksek frekans ölçümü · türbin, dişli kutusu ve yüksek devirli makineler için. Datasheet: TS194.	Datasheet (PDF) — HS-422

	HS-422I	Ex-Proof + Madencilik M1	HS-422I-M: ATEX/IECEx Ex ia + Group I Class M1 madencilik sertifikalı. Yeraltı maden ekipmanları için tek model. 10 Hz – 10 kHz. TS194.	Datasheet (PDF) — HS-422I

	HS-422T	Sıcaklık + Yüksek Frekans	4-20 mA hız + PT100 sıcaklık + 10 Hz – 10 kHz · türbin/kompresör izleme. TS194.	Datasheet (PDF) — HS-422T

	HS-422S	Yatay, Yüksek Frekans	Yan giriş + 10 Hz – 10 kHz · ISO 20816 · dar alan / yatay montaj için 316L SS. TS194.	Datasheet (PDF) — HS-422S

	HS-422IT	Ex-Proof + Sıcaklık + Yüksek Frekans	ATEX/IECEx Ex ia + PT100 sıcaklık çıkışı + 10 Hz – 10 kHz geniş bant. Tehlikeli ortamlarda yüksek devirli makine izleme. TS194.	Datasheet (PDF) — HS-422IT

	HS-422ST	Yatay, Sıcaklık + Yüksek Frekans	Yan giriş + 4-20 mA hız + PT100 + 10 Hz – 10 kHz geniş bant. TS194.	Datasheet (PDF) — HS-422ST

	HS-422SRT	Yatay, PT100 + Yüksek Frekans	Yan giriş + PT100 + 10 Hz – 10 kHz · dar alanlara özel ISO 20816 uyumlu çözüm. TS194.	Datasheet (PDF) — HS-422SRT

—	HS-423	Talep Üzerine	HS-423 — 4-20 mA ivme (g) çıkışlı transmitter. Hansford resmi kataloğunda mevcut; detaylı datasheet ve teknik özellikler için IMB Electric'ten talep ediniz: <a href="mailto:info@imbelectric.com">info@imbelectric.com</a>	Datasheet not uploaded yet — HS-423

HS-473 · Triaxial 4-20 mA Velocity Output Accelerometer

Triaxial velocity transmitter · X / Y / Z 3-axis · 8-pin M12 · single mount

4 MODELS720 PRODUCTS

SHARED IN THIS GROUPOutput:Triaxial 3× 4-20 mA velocityRange:0-10 to 0-100 mm/s (per axis)Supply:15-30 VdcStandard:ISO 10816Connector:8-pin M12Exit:Side ExitHousing:Stainless steelProtection:IP65 / IP67 / IP68

Model	Feature	Additional Features	Datasheet
HS-473F	Filtreli	Yüksek frekans bastırma özelliği	Datasheet (PDF) — HS-473F

HS-473L	316L Paslanmaz Çelik	316L SS Gıda/İlaç sektörüne uyumlu	Datasheet (PDF) — HS-473L

HS-473RT	PT100 Sıcaklık Çıkışlı	4-20mA hız ve PT100 Çıkışlı	Datasheet (PDF) — HS-473RT

HS-473T	Sıcaklık Çıkışlı	4-20mA hız ve 10 mV/°C 0-100°C	Datasheet (PDF) — HS-473T

HS-483 · Triaxial 4-20 mA Acceleration Output Accelerometer

Triaxial acceleration transmitter · X / Y / Z 3-axis · high-frequency 3-axis profile

5 MODELS900 PRODUCTS

SHARED IN THIS GROUPOutput:Triaxial 3× 4-20 mA accelerationRange:0-1 to 0-100 g (per axis)Supply:15-30 VdcStandard:ISO 20816Connector:8-pin M12Exit:Side ExitHousing:Stainless steelProtection:IP65 / IP67 / IP68

Model	Feature	Additional Features	Datasheet
HS-483	Standard	Dikey montajlı	Datasheet (PDF) — HS-483

HS-483F	Filtreli	Yüksek frekans bastırma özelliği	Datasheet (PDF) — HS-483F

HS-483L	316L Paslanmaz Çelik	316L SS Gıda/İlaç sektörüne uyumlu	Datasheet (PDF) — HS-483L

HS-483RT	PT100 Sıcaklık Çıkışlı	4-20mA hız ve PT100 Çıkışlı	Datasheet (PDF) — HS-483RT

HS-483T	Sıcaklık Çıkışlı	4-20mA hız ve 10 mV/°C 0-100°C	Datasheet (PDF) — HS-483T

HS-429 · Compact Vibration Switch with On-Board Trip Relay

Built-in trip relay · on-site alarm/shutdown · field-set threshold · no PLC required

1 MODELS2 PRODUCTS

SHARED IN THIS GROUPOutput:4-20 mA velocity + built-in relayRange:0-25 / 0-50 mm/sSupply:15-30 VdcThreshold:Field-set + delay 1 sec – 1 minProtection:IP67Shock:100 gConnector:M12Housing:Compact

Configurator	Model	Feature	Additional Features	Datasheet
	HS-429	Trip Switch + 4-20 mA	Çift dial (trip eşik + 0-60 sn gecikme) · LED status: yeşil OK / sarı trip · Pinout: Pin1 L+, Pin2 4-20 mA, Pin3 GND, Pin4 dijital çıkış (NC PNP 500 mA) · Frekans 80 Hz nominal @22°C ±10%, 10 Hz – 1 kHz ±5% · Şok 100 g · Çalışma sıcaklığı -25…+80°C · Sipariş kodu HS-429-{025/050}-{54/AC010/AC011}-08 · Industries: Building services, Pulp/Paper, Mining, Metals, Utilities, Automotive, Water, Pharmaceutical · Datasheet: TS434.	Datasheet (PDF) — HS-429

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Hansford HS-420 Family4-20 mA Loop-Powered Vibration Transmitters

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About the 4-20 mA Vibration Sensors / Transmitters series

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4-20 mA Titreşim Sensörü: Avantajları ve Tercih Sebepleri

Titreşim Sensörlerinde Mekanik Bağlantı Seçenekleri

AC mi 4-20 mA mı? Titreşim Sensörü Seçim Kriterleri

Titreşim Sensörü Nasıl Seçilir? Hansford Seçim Rehberi

Hansford Endüstriyel Kablo Çeşitleri (4-20 mA & AC)

Pompa, Fan ve Motorlarda Titreşim Sensörü Montajı

Akselerometre, Transmiter ve Titreşim Sensörü Arasındaki Fark

Kestirimci Bakım: Titreşim Analizi ile Rulman Hatalarının Erken Tespiti

Hansford HS-420 Family4-20 mA Loop-Powered Vibration Transmitters

Haven't picked a model from the table? Configure from scratch

About the 4-20 mA Vibration Sensors / Transmitters series

01What is the fundamental difference between HS-420 and HS-100? Which should I choose?

02What is the difference between HS-420 and HS-421? Is dual output necessary for me?

03What is the difference between models outputting 4-20 mA proportional to velocity (mm/s) vs acceleration (g)?

04Should I choose single-axis or triaxial? When is HS-473 / HS-483 needed?

05In hazardous areas, should I choose HS-420I-M (Ex ia) or HS-420d (Ex d)?

06What does the HS-429 on-site trip relay do? Can't I do this with HS-420?

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4-20 mA Titreşim Sensörü: Avantajları ve Tercih Sebepleri

Titreşim Sensörlerinde Mekanik Bağlantı Seçenekleri

AC mi 4-20 mA mı? Titreşim Sensörü Seçim Kriterleri

Titreşim Sensörü Nasıl Seçilir? Hansford Seçim Rehberi

Hansford Endüstriyel Kablo Çeşitleri (4-20 mA & AC)

Pompa, Fan ve Motorlarda Titreşim Sensörü Montajı

Akselerometre, Transmiter ve Titreşim Sensörü Arasındaki Fark

Kestirimci Bakım: Titreşim Analizi ile Rulman Hatalarının Erken Tespiti