Hamilton Dissolved Oxygen Sensors in Turkey
In Turkey, Mikron Proses supplies Hamilton optical and amperometric dissolved oxygen sensors, together with original ODO caps, membrane kits, Oxylyte electrolytes, replaceable cathodes and polarisation modules. Mikron Proses is one of the distributors of Hamilton in Turkey and handles sensor and fitting selection, ArcAir configuration, commissioning and calibration; the family measures from 1 ppb trace oxygen up to 40 ppm (40 mg/L).
Sensor Range Overview
Mikron Proses supplies two measurement principles across the Hamilton DO portfolio:
Optical (Luminescence)
- VisiFerm RS485 (Arc): digital output with Modbus RTU
- VisiFerm mA: 2-wire 4-20 mA with HART 7
- VisiTrace mA / RS485: trace oxygen, measuring range 0-2000 ppb
- VisiWater DO P Arc: water and wastewater, up to 40 ppm
- VisiFerm DO SU: single-use bioreactor version with Arc output and S-code caps (S0/S2/S3)
- VisiFerm MA: multi-analog output via junction box
Amperometric (Electrochemical)
- OxyFerm FDA: hygienic fermenters, autoclave and SIP compatible
- OxyGold G: trace DO, replaceable cathode
- OxyGold B: CO₂-tolerant for beverage applications
- Oxysens: low maintenance for water and wastewater
How to Select the Right Sensor
Selection depends on sterilisation frequency, maintenance tolerance, required range (standard, trace or high-pressure) and existing Arc/analog/RS485 infrastructure.
| If your application needs... | Consider |
|---|---|
| CIP/SIP cycles up to 140 °C | VisiFerm optical |
| CIP/SIP and autoclave cycles up to 130 °C | OxyFerm FDA or OxyGold G |
| No electrolyte or membrane changes | Optical sensors |
| Trace oxygen at 1 ppb level | OxyGold G or VisiTrace |
| CO₂-rich environments (beer, sparkling wine) | OxyGold B with 0 mV polarisation |
| Economical wastewater monitoring | Oxysens |
| Hazardous area approval | VisiFerm mA with ATEX/UKEX/IECEx |
Key Specifications
| Model | Principle | Range | Temperature | Pressure | ODO Cap / Membrane | Output / Notes |
|---|---|---|---|---|---|---|
| VisiFerm RS485 (Arc) | Optical luminescence | 4 ppb – 25 ppm | Up to 140 °C; DO reading up to 85 °C | 12 bar | H0, H2, H3, H4 | Arc 4-20 mA + Modbus RTU; CIP/SIP and autoclavable |
| VisiFerm mA | Optical | 4 ppb – 25 ppm | Up to 140 °C; DO reading up to 85 °C | 12 bar | H3, H4 | 2-wire 4-20 mA + HART 7; ATEX/UKEX/IECEx |
| VisiTrace mA / RS485 | Optical trace | 0-2000 ppb | Up to 140 °C; DO reading up to 85 °C | 12 bar | L1 | Beer filling, beverage, boiler feedwater |
| VisiWater DO P Arc | Optical | 4 ppb – 40 ppm | 0...60 °C | 12 bar | H20 | Wastewater aeration, no electrolyte |
| OxyFerm FDA | Amperometric (Clark) | 10 ppb – 40 ppm | 0...130 °C (Arc analog 0...110 °C) | 4 bar | FDA / CIP / standard (Oxylyte) | Hygienic fermenters, autoclave and SIP |
| OxyGold G | Amperometric trace | 1 ppb – 40 ppm | 0...130 °C (Arc analog 0...110 °C) | 12 bar | REF 237135 + Oxylyte G | -670 mV polarisation; t90 < 60 s |
| OxyGold B | Amperometric, CO₂ tolerant | 8 ppb – 40 ppm | 0...100 °C | 12 bar | OxyGold membrane + Oxylyte B | 0 mV polarisation; no cross-sensitivity to 100 % CO₂ |
| Oxysens | Amperometric, low maintenance | 40 ppb – 40 ppm | 0...60 °C | 4 bar | No membrane or electrolyte change | -670 mV; t90 < 60 s; 5 m fixed cable |
Construction by model: VisiFerm, VisiTrace and OxyFerm use 316L stainless steel 1.4435, EPDM O-ring, PG13.5 thread, surface finish Ra < 0.4 µm (N5) and body lengths of 120 / 160 / 225 / 325 / 425 mm. OxyGold is offered in 120 and 225 mm lengths, Oxysens in 120 mm with Ra < 0.8 µm (N6), and VisiWater has a PVC-U shaft with a PA cap.
Optical vs. Amperometric: Technology Differences
Optical sensors need no electrolyte and have no thin membrane. There is no polarisation waiting time, and because no oxygen is consumed, the reading is independent of flow velocity. Only the ODO cap is renewed periodically; H3 and H4 PTFE-coated caps reduce bubble adhesion and withstand CIP/SIP.
Amperometric sensors use a cathode-anode pair and Oxylyte electrolyte. They are preferred in chemical processes where hydrogen or organic solvents affect optical caps, under high CO₂ (OxyGold B), or for economical wastewater monitoring (Oxysens). Standard electrochemical DO sensors at -670 mV polarisation suffer when dissolved CO₂ passes the membrane and lowers electrolyte pH; OxyGold B uses 0 mV and Oxylyte B electrolyte (1.5 mL fill) to avoid this.
Applications
- Biofermentation and bioreactor DO control with CIP/SIP: VisiFerm DO Arc, OxyFerm FDA
- Trace oxygen in beer and beverage: VisiTrace, OxyGold B
- Boiler feedwater, WFI and ultra-pure water at 1 ppb and above: OxyGold G, VisiTrace
- Aeration basins and fish farms: Oxysens, VisiWater DO P Arc
- Power-plant boiler feedwater (deaerator outlet), microelectronic ultra-pure water, pharmaceutical processes: OxyGold G with replaceable cathode (REF 237427)
- Municipal and industrial wastewater basins, river/canal monitoring: Oxysens (REF 237150, 120 mm shaft, 5 m fixed cable) with Immersing Set REF 237158
- Beer, sparkling wine, carbonated drinks and CO₂ recovery plants: OxyGold B (REF 237180 120 mm / 237185 225 mm)
What Mikron Proses Provides
Mikron Proses selects, supplies, commissions and calibrates Hamilton DO sensors. Services include:
- Sensor and fitting selection for new installations or retrofits
- ArcAir digital configuration for Arc-enabled sensors
- Commissioning and calibration support
- Spare parts: ODO caps, membrane kits, Oxylyte electrolytes, replaceable cathodes and polarisation modules
Consumables supplied include: ODO Cap H0/H2 general bioprocess (RS485/Arc versions), H3/H4 PTFE-coated, L1 trace oxygen (VisiTrace), H20 wastewater (VisiWater); Membrane Kit OxyFerm REF 237123, FDA REF 237140, CIP REF 237126, OxyGold REF 237135; Oxylyte REF 237118, Oxylyte G REF 237139, Oxylyte B REF 237138 (30 mL).
Retractable fittings (Hamilton Retractex) let DO sensors be removed and calibrated without stopping the process. OxyFerm XL offers special length options for deep immersion; OxyFerm CIP version is available for CIP lines.
How to Request a Quotation
Send your application data through the contact page. Include: process medium, temperature and pressure range, required measurement range, sterilisation method (if any), existing transmitter or cable infrastructure, and fitting type. Mikron Proses will select the appropriate sensor, cap or membrane kit and return a quotation.
Frequently Asked Questions
Technical answers from Mikron Proses.
Who supplies Hamilton dissolved oxygen sensors in Turkey?
Mikron Proses is one of Hamilton's distributors in Turkey. The company supplies DO sensors with original ODO caps, membrane kits, Oxylyte electrolytes, replaceable cathodes and polarisation modules, and provides selection, ArcAir configuration, commissioning and calibration support.
What is the difference between VisiFerm and OxyFerm?
VisiFerm uses optical luminescence technology with no electrolyte and no thin membrane, available with Arc digital or mA analog output. OxyFerm is an amperometric Clark cell with membrane kit and Oxylyte electrolyte, designed for hygienic fermenters with autoclave and SIP compatibility up to 130 °C. The choice depends on sterilisation frequency, maintenance preference and existing infrastructure.
Can I use a Hamilton DO sensor in a bioreactor with repeated steam sterilisation?
Yes. VisiFerm RS485 (Arc) and VisiFerm mA are rated for sterilisation up to 140 °C and 12 bar, with the DO reading valid up to 85 °C. OxyFerm FDA is also autoclave and SIP compatible up to 130 °C at 4 bar. VisiFerm is CIP/SIP and autoclavable.
Which Hamilton sensor measures ppb-level trace oxygen?
OxyGold G measures from 1 ppb to 40 ppm and is used in power-plant boiler feedwater, microelectronic ultra-pure water and pharmaceutical processes. VisiTrace covers 0-2000 ppb for beverage and boiler feedwater applications. For CO₂-rich environments, OxyGold B starts at 8 ppb.
I currently use Mettler Toledo InPro 6800/6860 dissolved oxygen sensors. Is there a Hamilton equivalent?
For plants using Mettler Toledo InPro 6800/6860 dissolved oxygen sensors, Mikron supplies Hamilton VisiFerm as equivalent/alternative product and spare parts.
Planning a project? Send us your flow rate, feed water source and target water quality to [email protected] — our engineers will reply with a technical proposal.