ZT-100TEG S-Series
Compact screw-in water-in-TEG monitor for threaded process connections
Compact Threaded Connection
The ZT-100TEG S-Series is a compact water-in-TEG monitor with threaded process connections, designed for installation on glycol skids, regeneration units, and sample points where space is limited. The screw-in design allows quick installation in existing tapping points without pipeline modification.
Available with 1" and 1.5" NPT or BSP connections, the S-Series is ideal for monitoring glycol quality at multiple points throughout the dehydration circuit without the cost and footprint of full-bore instruments.

Key Features
Compact Design
Small form factor ideal for glycol skids, regeneration units, and process connections with limited space.
TEG-Optimised
Calibrated for the dielectric properties of triethylene glycol across the full range of water loading.
Threaded Connections
1" and 1.5" NPT or BSP threads for direct installation into existing tapping points without welding.
Hazardous Area Certified
ATEX and IECEx certification for Zone 1 and Zone 2 installations at gas processing facilities.
Robust Construction
316L stainless steel wetted parts and IP67 rated enclosure for outdoor gas plant environments.
Standard Communication
4-20mA analog output and Modbus RTU digital communication for DCS, SCADA, and PLC integration.
Technical Specifications
Measurement Performance
| Medium | Triethylene glycol (TEG) |
| Measurement Range | 0–100% |
| Resolution | 0.001% |
| Accuracy | 0.01% |
| Repeatability | 0.01% Absolute |
| Sensitivity | 0.01% |
Mechanical
| Nominal Sizes | 1″ to 12″ |
| Pressure Rating | 150#, 300#, 600# |
| Process Temperature | +120°C (High Temp Option available) |
| Wetted Material (Sensor) | SS316L (Optional Duplex, Inconel or other steels) |
| Wetted Material (Spool) | SS316L (other material available) |
| Seals & Insulators | PEEK |
| Process Connection | ANSI, DIN, JIS |
Electronics
| Principle of Operation | High Frequency Digital Capacitance |
| Output Signal | 4–20mA |
| Digital Communication | Modbus RTU (RS-485) |
| Power Supply | 24VDC (4-wire) |
| Power Consumption | 2W Max |
| Measurement Rate | 1000 per second |
| Ambient Temperature | –20°C to +60°C |
| Ingress Protection | IP66 |
Applications
Glycol Skid Monitoring
Compact installation on packaged glycol dehydration skids where space and weight are constrained.
Regeneration Units
Monitor glycol quality at the reboiler inlet and outlet to verify regeneration performance.
Sample Point Monitoring
Install in existing sample connections for continuous glycol quality monitoring without additional piping.
Multi-Point Monitoring
Cost-effective installation at multiple locations in the glycol circuit for complete system visibility.
Configure Your ZT-100TEG S-Series
Specify your connection size, thread type, and process conditions and we will provide a complete quotation for your glycol dehydration application.


