HP LMA conductivity measurement at 200 bar and 100 °C
The HP LMA 0020.0300 high-pressure conductivity cell measures conductivity and temperature in liquids. LF-TR-MOD evaluation electronics are integrated in the housing mounted on the cell. The measuring cell is rated for 200 bar at 100 °C.
| Measuring range | 0.001–2000 µS/cm (up to 2 mS/cm) |
|---|---|
| Cell constant | 0.01 cm-1; fine calibration possible |
| Temperature measurement | Pt1000, integrated |
| Cell materials | 316L stainless steel, PEEK, EPDM |
| Process connection | G 3/4″; O-ring Ø28 × 4 mm, EPDM |
| Measurement | Conductive; five automatic internal measuring ranges |
| Temperature compensation | Off / TK nat / TK lin 0.00–6.00 %/K; factory reference temperature 25 °C |
| Direct connection | RS-485, 2-wire, Modbus RTU; 4-pin M12 connector |
| Factory settings | 9600 baud, 8N1, address 10; selectable baud rates up to 115200 bit/s |
| Power supply | 12/24 V DC ±10 %; current consumption <50 mA |
| Electronics housing | Ambient −20 to +50 °C; IP65 |
| Software versions | LF-TR-MOD firmware 1.12; PC monitor 1.16 |
The pressure and temperature rating applies to the measuring cell; the electronics have separate ambient limits. Overall accuracy also depends on the cell, installation, medium and temperature conditions.
Direct Modbus or IO-Link via converter
Modbus: HP LMA → RS-485 / Modbus RTU → Modbus master.
IO-Link: HP LMA → external Banner S15C-MGN-KQ → IO-Link master.
The optional converter is supplied preconfigured: address 10, 9600 baud, 8N1 and register mapping are already stored. An IO-Link master is required. In IO-Link operation the combined system is supplied with 24 V DC ±10 % by the master. The customer package includes the original IODD and register mapping.
Banner S15C-MGN-KQ surcharge: EUR 194. Please request a quote.
Dimensions and installation
Housing width 65.50 mm; height 142 mm excluding the connector projecting above the housing; measuring shaft Ø16 mm. The data sheet includes the O-ring and weld-in socket dimensions and pin assignment.
Downloads
- Data sheet (PDF, English)
- Modbus integration manual revision 1.7 (PDF)
- PC monitors and manuals DE/EN (ZIP) – LF-TR-MOD Monitor 1.16; separate pH Monitor 1.10.
- IO-Link package: Banner IODD, register mapping and instructions (ZIP)