ZT-100-C Electronics
The full specification — a display and diagnostics at the instrument, and both HART and Modbus RTU off it
When There Is Power Available, Use It
The ZT-100-C is a four-wire board with its own 24 VDC supply. Freed from the loop's energy budget, it runs a considerably more capable measurement chain and puts the result where an engineer standing at the instrument can read it: a 320 × 240 full-colour display showing the reading, the trend and the diagnostics.
Bluetooth Low Energy brings the same configuration and health data to a phone or tablet without opening the enclosure. Off the instrument it carries 4–20 mA with HART, and Modbus RTU over RS-485 — so it fits a modern control system without a gateway in between.
At a Glance
| Principle of Operation | High Frequency Digital Capacitance |
| Output Signal | 4–20mA |
| Digital Communication | HART, Modbus RTU (RS-485) |
| Power Supply | 24VDC, 4-wire |
| Ambient Temperature | –20°C to +60°C |
Hazardous Area
Flameproof (Ex d) and general-purpose versions are available. Certification is in progress and the certified figures will be published when they issue. See the ZT-100-B page for the certification currently in force in the range.
Not Sure Which Board Fits?
Tell us the power you have at the instrument, the signals your control system expects, and the area classification you are installing into. We will tell you which electronics fit — and which measuring elements go with them.


