Water analysis Just one single probe for measuring conductivity from very low (0,1 µS/cm) up to very high levels (500 mS/cm) 4-contact graphite electrode / 2-steel poles with high linearity across the whole measuring range Integrated NTC sensor for temperature compensation of measured conductivity values Suitable for the latest ALMEMO® V7 devices, ALMEMO® 202-S, 204, 104, 710, 510, 809. Technical data and functions The digital conductivity probe provides this high level of precision irrespective of any extension cables used and of any processing in the ALMEMO® V7 display device / data logger. Overall accuracy is determined exclusively by the conductivity electrode and the ALMEMO® D7 plug. All parameters for the sensor can be programmed end-to-end via the programming menu on the ALMEMO® V7 measuring instrument. The desired measuring range can be selected and temperature compensation can be activated or deactivated. The temperature coefficient of the solution to be measured, if known, can also be programmed. The probe is delivered already adjusted and ready-to-use. The electrode‘s measured cell constant can also be entered, if so required, and / or the probe can be adjusted using a reference solution. Common technical data FYD 741 LFE01, FYD 741 LFE02 and FYD 741 LFP ALMEMO® D7 plug with A/D converter Measuring method Electrical conductivity measurement with AC voltage (approx. 1 kHz) Temperature compensation either automatic or non-compensated Measuring ranges Range DLF1 Range DLF2 Range DLF3 Range NTC up to maximum 500.00 µS/cm Resolution 0.01 µS/cm up to 50.000 mS/cm Resolution 0.001 mS/cm (factory default settings) with FYD 741 LFE01 up to 500.00 mS/cm with FYD 741 LFE02 up to 500.00 µS/cm with FYD 741 LFP up to 200.00 mS/cm Resolution 0.01 mS/cm Resolution 0.01 K Calculated error-free (not an approximation) Nominal temperature Temperature drift Refresh time Temperature coefficient Natural surface water or linear in range 0.00 to 9.99 Sleep mode on the device possible with wakeup delay of 5 seconds Supply voltage 6 to 13 VDC, from ALMEMO® device (sensor supply voltage) Current consumption 11/2025 • We reserve the right to make technical changes. Digital probes for measuring conductivity FYD 741 LFE01, FYD 741 LFE02 and FYD 741 LFP with

Water analysis Digital probe for measuring conductivity FYD 741 LFE01 Digital probe for measuring conductivity FYD 741 LFE02 Probe for laboratory applications Probe for laboratory applications General description and common technical data see previous page General description and common technical data see previous page Uses Laboratory applications Conductivity 10 pS/cm up to 200 mS/cm Pressure Ambient pressure (unpressurized) Electrode type 4-contact graphite electrode electrically connected to the power supply (ALMEMO® device ground) Cell constant approx. 0.5 cm-1 Temperature sensor NTC 30 kilohms,...

11/2025 • We reserve the right to make technical changes. Water analysisDigital probe for measuring conductivity FYD 741 LFP Probe for process applications Process applications 10 pS/cm up to 200 mS/cm Pressure up to 16 bar under nominal conditions Process connection Thread G %-inch Fitted length 145 mm Electrode type 4-contact graphite electrode electrically connected to the power supply (ALMEMO® device ground) Cell constant approx. 0.5 cm-1 Temperature sensor NTC 10 kilohms, integrated Conductivity ±3 % of meas. value ±0.2 % of final value under nominal conditions Temperature ±0.2 K under nominal...