Two-wire 4-20 mA pressure and differential pressure transmitters for process lines, tanks, filters, pumps and boilers. The loop-powered design means two wires carry both the supply and the signal, so a transmitter can replace a gauge on an existing tapping without new cabling.
Gauge and absolute versions cover 0-0.1 MPa to 0-60 MPa; the differential version covers 0-1 kPa to 0-2 MPa for filter differential, tank level by DP and flow across an orifice plate. The 316L diaphragm is standard, with Hastelloy C for chloride duty and a PTFE-faced diaphragm or a diaphragm seal for viscous, crystallising or hygienic media.
Configuration is done over HART from a handheld or from the plant system: range, damping, zero and span, and the 4 mA / 20 mA endpoints. Units are supplied ranged and tagged as ordered, with a calibration certificate traceable to a dead-weight tester. Where a transmitter replaces an existing instrument, we also check the process connection thread and the diaphragm seal fill fluid before shipping, because those two items cause most of the field failures on a like-for-like swap.
- Gauge, absolute and differential versions, 0-1 kPa up to 0-60 MPa
- 4-20 mA two-wire with HART 7, 12-36 V DC loop supply
- +/-0.5 % FS standard accuracy, +/-0.25 % option, +/-0.2 % FS per year stability
- 316L diaphragm standard, Hastelloy C and PTFE options, diaphragm seals available
- LCD with three keys, local zero and span without a handheld
- Calibration certificate and tag plate issued per instrument
Standard ranges ship in 15-20 days, diaphragm seal assemblies in 25-30 days. Send the medium, the range, the process connection and the output protocol and we will confirm the model and price within two working days.
