Dual-Loop Monitoring TCS + FWS — One Platform IsoFLOW Probe™ — US Patent 12,007,314 B1 Koios® AI — Built In Real-Time Coolant Intelligence Factory Acceptance Tested BMS Ready — Modbus · EtherNet/IP · OPC UA 0.001 FNU Turbidity Resolution Zero Coolant Loss Dual-Loop Monitoring TCS + FWS — One Platform IsoFLOW Probe™ — US Patent 12,007,314 B1 Koios® AI — Built In Real-Time Coolant Intelligence Factory Acceptance Tested BMS Ready — Modbus · EtherNet/IP · OPC UA 0.001 FNU Turbidity Resolution Zero Coolant Loss
Chemtec Mission Critical · US Patent 12,007,314 B1

If You Can't See
Your Coolant Chemistry,
You Don't Control
Your Cooling Loop.

Coolant iQ™ delivers real-time continuous chemistry monitoring across both your Technical Cooling System and Facility Water System — simultaneously. On one patented platform, with one AI layer.

Chemtec Coolant iQ System — Full Dual Installation with MiniBLOCK Dosing
IsoFLOW Probe™ — Zero coolant loss
Koios® AI — Built in from day one
BMS Ready — Modbus · OPC UA
0%
of data center outages traced to cooling-related failures
Uptime Institute Annual Outage Analysis 2024
0/7
Continuous monitoring — replacing quarterly grab samples
$0
Annual exposure at 10 MW — 6 FMEA chronic failure modes
PUE-weighted FMEA · $0.09/kWh
0×
Better turbidity resolution than industry standard 1 FNU floor
E+H CUS52D · ISO 15839 · 0.001 FNU Elite
Return on investment

Six Failure Modes.
All Invisible to Standard Instrumentation.

PUE-weighted Failure Modes and Effects Analysis across a 10 MW data hall at $0.09/kWh. Every one of these failure modes is detectable — and recoverable — with continuous chemistry monitoring.

♨️
$236k–$631k/yr
HX Fouling / Scaling
ΔPUE 0.03–0.08. Heat exchanger fouling is the highest-value chronic efficiency loss in the dual-loop architecture. Detected via FWS conductivity and pH trending.
→ FULL ANALYSIS
📡
$158k–$473k/yr
Sensor Drift
ΔPUE 0.02–0.06. A drifted sensor reports plausible but incorrect data. E+H Heartbeat Technology + Koios Capability 3 eliminates this failure mode entirely.
→ FULL ANALYSIS
🔲
$158k–$473k/yr
Cold Plate Fouling
ΔPUE 0.02–0.06. Particulate in GPU microchannels. 0.001 FNU turbidity detection catches accumulation before GPU thermal throttling begins.
→ FULL ANALYSIS
🌊
$158k–$394k/yr
Flow Imbalance
ΔPUE 0.02–0.05. Chemistry-driven viscosity changes alter flow resistance. The CDU hydraulic model becomes invalid — caught through conductivity and concentration trending.
→ FULL ANALYSIS
🦠
$79k–$394k/yr
Biofouling
ΔPUE 0.01–0.05. ORP monitoring in the FWS loop detects biocide residual loss and biological growth before macroscopic fouling develops.
→ FULL ANALYSIS
⚙️
$79k–$236k/yr
Pump Efficiency Loss
ΔPUE 0.01–0.03. Corrosion-driven impeller degradation. pH + turbidity cross-correlation identifies corrosion onset before mechanical failure.
→ FULL ANALYSIS
Customer-Rebuildable ROI Formula
Annual $ waste ≈ ΔPUE × IT_kW × 8,760 hrs/yr × $/kWh
Example: ΔPUE 0.05 × 10,000 kW × 8,760 × $0.09 = $394,200 / year
Aggregate exposure at a 10 MW data hall at $0.09/kWh: $0.9M–$2.6M per year across all six FMEA chronic failure modes. All six are invisible to pressure, flow, and temperature instrumentation alone. Site-specific analysis available — contact Chemtec with your IT load, $/kWh, and cooling architecture.
The silent degrader thesis

Your cooling loop is degrading.
Right now. Invisibly.

Pressure, flow, and temperature sensors cannot detect slow chemistry-driven degradation. By the time a traditional alarm fires, the damage is already costing you.

Day 1
System commissioned. Clean and efficient.
PG25 at correct concentration. pH balanced. Turbidity clear. Cold plates at spec. PUE on target.
0.001 FNU
Day 60
Inhibitor depletion begins. pH drift starts.
Corrosion by-products enter the TCS loop. Turbidity creeps up. Flow sensors show nothing unusual. No alarm raised.
0.08 FNU
Day 120
Biofilm forms in FWS loop. HX fouling starts.
Biological growth in the facility water loop. Heat exchanger efficiency drops 4%. Pumps working harder. Power cost rising — invisibly.
0.35 FNU
Day 180
Cold plate microchannels partially blocked.
Particulate in GPU cold plates. GPU junction temps rise. System degraded — and nobody noticed it happening.
1.2 FNU
♨️
HX Fouling
Scale and fouling on heat exchanger surfaces reduces thermal efficiency — undetectable by pressure or temperature sensors until significant damage occurs.
🦠
Biofouling
Biological growth in the FWS loop changes viscosity and insulates heat transfer surfaces. ORP is the only real-time indicator of biocide residual.
🔲
Cold Plate Fouling
GPU cold plate microchannels are ≤10 microns wide. Particulate load below 1 FNU — invisible to standard sensors — accumulates and throttles GPUs.
⚗️
Inhibitor Depletion
Corrosion inhibitors break down over time. pH drift accelerates galvanic attack on copper cold plates and aluminium CDU components without triggering any alarm.
0%
of data center outages are traced to
cooling-related failure modes
Uptime Institute Annual Outage Analysis 2024 · Click for citation
Dual-loop architecture

Multiple Loops. One Intelligent System.

The Chemtec Coolant iQ™ system is capable of real time monitoring across all the cooling loops of the modern AI data center — TCS, FWS, and CWS — giving you end to end fluid chemistry visibility from the cold plate to the cooling tower.

AI Data Center Liquid Cooling Architecture — Dual Loop
① TCS — Technical Cooling System
Direct-to-chip closed loop. Fluid: PG25 / DI water. Monitors turbidity, pH, conductivity, and glycol concentration. Protects GPU cold plates and CDU components from chemistry-driven degradation.
② FWS — Facility Water System
Intermediate heat transfer loop. Fluid: treated water. Monitors turbidity, pH, conductivity, and ORP. Detects biofouling, scaling, and corrosion in the facility-side infrastructure.
The solution

Dual-Loop Monitoring.
Smarter Cooling. Optimized Performance.

Coolant iQ™ delivers a continuous, real-time chemical fingerprint of both cooling loops simultaneously — the live data layer that makes your thermal infrastructure predictable, defensible, and optimized.

Coolant iQ — The Solution: Dual Loop Monitoring with Koios AI
Koios® AI layer — Elite tier

Advisory Intelligence.
Built In From Day One.

Koios® AI ships productized inside every Elite skid — not added later, not a cloud subscription. One instance supports up to four Coolant iQ loops simultaneously.

01
Predictive Coolant Quality Forecasting
Anticipates chemistry drift before excursions occur in either loop. Identifies the trajectory of degradation hours or days in advance — enabling corrective action before damage occurs.
02
Multi-Parameter Contamination & Anomaly Detection
Cross-loop correlation invisible to single-sensor systems. When turbidity, ORP, pH, and conductivity from TCS and FWS are correlated simultaneously, contamination events become unambiguous.
03
Sensor Health & Data Integrity Monitoring
Flags unreliable readings before false alarms or bad dosing decisions. Works with E+H Heartbeat Technology to provide the most comprehensive sensor validation on any inline monitoring platform.
Technical specifications
HardwareOnLogic Karbon K410
Industrial edge PC
ProtocolsOPC UA · EtherNet/IP
Modbus TCP
Loops supportedUp to 4 per instance
DeploymentFactory integrated
Live at commissioning
Annual service (Yr 2+)AI Optimization &
Lifecycle Services
Advisory / supervisory only. Koios does not actuate valves, modulate pumps, or override existing control logic or operator overrides. Existing control systems remain fully unchanged.
Connectivity
OPC UA
EtherNet/IP
Modbus TCP
PROFINET
4–20 mA
NAMUR NE107
The physical system

Pre-Engineered.
Factory Tested. Field Ready.

Every Coolant iQ unit completes full Level 3 factory acceptance testing at Chemtec's Willis, TX facility before shipping. Electrical and physical functional verification. FAT report included.

Full Coolant iQ system with optional MiniBLOCK dosing skid and dual monitoring units
IsoFLOW Probe™ — 316L stainless steel, single penetration
IsoFLOW Probe™ — cutaway showing internal isokinetic flow path
MiniBLOCK™ Dosing — Optional
IsoFLOW Probe™ — Patented
Instrument-Agnostic by Design
CORE (Pyxis IK-1500A), ADVANCED (Pyxis IK-1600), or ELITE (E+H Liquiline CM444 + Memosens) — right-sized for every application. Configure each loop independently based on criticality.
Turnkey — Design Through Commissioning
In-house Autodesk Inventor 3D CAD modeling. Virtual fit, form, and operability testing before fabrication begins. Chemtec field commissioning representative on-site at startup.
BMS Integration on Day One
Modbus TCP, EtherNet/IP, OPC UA, PROFINET, and 4–20 mA — standard. Coolant iQ chemistry data appears alongside your existing temperature, flow, and pressure points from commissioning.
MiniBLOCK™ Dosing Integration
Optional MiniBLOCK™ metered dosing companion — biocide, corrosion inhibitor, pH neutralizer, anti-static. Dosing driven by Coolant iQ data, not a calendar schedule.
IsoFLOW Probe™ — US Patent 12,007,314 B1

One Penetration.
Zero Coolant Loss.

The patented sampling mechanism at the heart of every Coolant iQ installation. A single hot-tap into the mainline — no pumps, no external pressure source, no process interruption, ever.

IsoFLOW Probe — full render, 316L stainless steel
IsoFLOW Probe — cutaway cross-section showing internal flow path
IsoFLOW Micro — compact inline version with Parker fittings
Pipe sizes
¾" to 48" mainline
Max working pressure
1,480 PSI
Temperature range
−15°C to +80°C
Material
316L Stainless Steel
Moving parts
None
Penetrations required
One (extraction + return)
Isokinetic extraction per API Section 8.2 — sample velocity matches mainline velocity for a representative, non-biased sample at any flow rate.
Passive return — the sample is drawn and returned by the mainline pressure differential alone. No pump, no compressor, no external pressure device required.
Hot-serviceable — isolation valves integral to assembly allow instruments to be removed, calibrated, and replaced while the primary loop remains online. Zero process interruption.
Sizes A through D — 2" to 48" mainline pipe. Same penetration serves both extraction and return. Compatible with all schedule piping and flange standards.
Measurement precision

Lab-Grade Instruments.
Inline. Continuous.

Four continuous chemistry parameters per loop — each one chosen because it detects a specific failure mode that pressure, flow, and temperature sensors cannot see. Every parameter. Every loop. Every minute.

Coolant iQ Elite — E+H Liquiline CM444 with Memosens turbidity sensor
Parameter 01
Turbidity
0.001 FNU

GPU cold plate microchannels are ≤10 microns wide. Standard industry turbidity sensors floor out at 1 FNU — the level at which a sample visibly clouds. By then, particulate has already been accumulating in microchannels for weeks. Coolant iQ Elite detects contamination at 0.001 FNU — 1,000× earlier — in the range where particulate is building but invisible to every other instrument on site.

E+H Turbimax CUS52D · ISO 15839 formazine calibration · 0–10 FNU range
Continuous inline — not a lab sample. Not quarterly. Every minute, every day.
Koios AI trends the accumulation rate — triggering action before GPU throttling begins
Parameter 02
pH
0–14 · Continuous

pH excursion is the upstream cause of most corrosion events in liquid cooling loops. When corrosion inhibitors in PG25 coolant deplete below their protective threshold, pH drifts — and galvanic attack begins on copper cold plates and aluminium CDU components without triggering a single BMS alarm. By the time a pressure sensor responds, the damage is done.

E+H Memosens digital glass sensor — digital protocol eliminates signal interference
Heartbeat Technology — continuous in-process sensor verification without loop shutdown
Monitors both TCS and FWS loops — each with loop-appropriate target setpoints
Coolant iQ with pH and conductivity sensor array — E+H Memosens configuration
Parameter 03
Conductivity
0–2000 mS/cm · Continuous

The first indicator of a fluid contamination event in either loop. Tracks tramp fluid ingress, chemical dilution, corrosion inhibitor depletion, and total dissolved solids drift — continuously, without lab intervention. In the FWS loop, rising conductivity correlates with scaling tendency; in the TCS loop it tracks coolant integrity.

→ CLICK FOR TECHNICAL DETAIL
Parameter 04
Concentration / ORP
TCS: Glycol · FWS: Biocide Residual

Two different instruments, one measurement slot. TCS loop: KXS DCM-20 inline digital refractometer with automatic temperature compensation — continuous glycol concentration, not quarterly checks. FWS loop: ORP probe — real-time biocide residual confirmation. ORP dropping signals biological risk weeks before macroscopic fouling develops or any pressure sensor responds.

→ CLICK FOR TECHNICAL DETAIL
IsoFLOW Probe full render
IsoFLOW Probe cutaway
IsoFLOW Micro inline probe
Full Coolant iQ system
IsoFLOW Probe™ · Cutaway · IsoMICRO™ · Full system with MiniBLOCK™ dosing
Monitoring deployment

Right-Sized for
Every Application.

Coolant iQ deploys where it matters most — starting with the FWS loop and scaling across every data hall TCS loop and sub-loop as required. Each monitoring location is configured with the customer-approved instrument set that best supports the chemistry monitoring and prediction requirements of that specific loop.

① FWS Loop
Facility Water System
Primary monitoring location. One Coolant iQ unit on the FWS supply and return header gives system-wide chemistry visibility across the intermediate heat transfer loop. Optional redundant unit for continuous uptime during calibration or service.
Turbidity — particulate and biological load
ORP — biocide residual and biofilm detection
pH — scaling risk and corrosion protection
Conductivity — treatment efficacy and TDS
+ Optional redundant unit for 24/7 service continuity
② TCS Loop
Technical Cooling System
Deployed at each data hall or sub-loop depending on facility architecture and customer requirements. Monitors the PG25 direct-to-chip closed loop at the mainline header — providing chemistry visibility across the full TCS circuit feeding that data hall.
Turbidity — cold plate microchannel protection
Glycol concentration — inline refractometry
pH — inhibitor depletion and corrosion risk
Conductivity — tramp fluid and contamination
+ One unit per data hall — or per sub-loop as required
③ Rack Level — Optional
IsoMICRO™ Probe
For applications requiring rack-level coolant extraction and monitoring, the IsoMICRO™ probe provides the same isokinetic sampling capability as the IsoFLOW Probe™ in a compact form factor designed for smaller pipe and manifold applications at the rack or CDU level.
Same isokinetic sampling — compact form factor
No pumps · No moving parts · Zero coolant loss
Designed for manifold and small-bore pipe
+ Deployed where rack-level chemistry granularity is required
Instrument-Agnostic by Design
Each Coolant iQ monitoring location is configured with the instrument package that best supports the monitoring and prediction requirements of that specific loop and customer application. CORE (Pyxis IK-1500A), ADVANCED (Pyxis IK-1600), or ELITE (E+H Liquiline CM444 + Memosens) — selected per loop, not per site. Add the analyzers and devices you need. No more, no less. Just what matters.
Get started

The Operating Cost
Lives in the Fluid.

Ready to see what your loops are doing right now? Request a technical briefing, a site-specific ROI analysis, or a Coolant iQ™ product demonstration.

Back to Mission Critical
(740) 610-4950  ·  MissionCritical@ChemtecEnergy.com
Shawn Laughlin, President  ·  Andrew Mahon, VP Mission Critical
Chemtec Energy Services LLC · 11745 Cude Cemetery Road, Willis, TX 77318