Q: 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.

Q: 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).

Question 1

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

Accepted Answer

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).

Question 2

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

Accepted Answer

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.

Question 3

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

Accepted Answer

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.

Question 4

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

Accepted Answer

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.

Question 5

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

Accepted Answer

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.

Question 6

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

Accepted Answer

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.

Question 7

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

Accepted Answer

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).

Question 8

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

Accepted Answer

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).

Question 9

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

Accepted Answer

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.

Question 10

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

Accepted Answer

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).

Question 11

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

Accepted Answer

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.

Question 12

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

Accepted Answer

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/

Question 13

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

Accepted Answer

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.

Question 14

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

Accepted Answer

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.

Question 15

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

Accepted Answer

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.

Question 16

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

Accepted Answer

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:

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)

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.

Question 17

Which international standards does Hansford HS-420 comply with?

Accepted Answer

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

Question 18

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

Accepted Answer

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:

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

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?

07Does cable length affect the signal? How far can I mount the sensor from the PLC?

08When is the 316L stainless steel (L) option required?

09How do I read temperature from T / RT / ST / SRT models?

10What is the difference between ISO 10816 and ISO 20816? Which should I reference?

11What is Hansford HS-420? What does it do?

12Where can I buy Hansford HS-420 in Turkey? Who is the authorized distributor?

13Compare Hansford HS-420 with Wilcoxon 786A, PCB 640B02, and IMI 622B01

14Which Hansford HS-420 variant is best for pump vibration monitoring?

15How do I select Hansford HS-420 for electric motor vibration monitoring? What's a typical CBM application?

16Which PLC and DCS systems are compatible with Hansford HS-420?

17Which international standards does Hansford HS-420 comply with?

18What is the price of Hansford HS-420? How do I get a quote?