Most plants still have hundreds of old explosion-proof pneumatic positioners from the 1990s. When they break, replacing with European smart Ex d positioners costs a fortune. The TS800 Ex d version costs almost the same as repairing the old pneumatic one, but you get HART, auto-tune, and diagnostics. Turnaround teams just swap them one-for-one and suddenly the whole unit has digital communication.
| Certification | ATEX, IECEx, KC, NEPSI Ex d IIC T6 |
| Housing | Die-cast aluminum + tempered glass |
| Input | 4–20 mA + HART |
| Air ports | 1/4" NPT |
| Weight | 4.8 kg (Ex d version) |
Q: Can I use the same feedback lever as my old positioner?
A: Yes – standard NAMUR kit fits everything.
Q: Does HART work through the flameproof housing?
A: Yes – just connect the handheld across the 250 Ω resistor.
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Email: edwardzhao@gbsxj.com