Technical data
Model and mechanical connection
■ Thread G3⁄4 A, EN ISO 228-1
Nominal pressure rating, admissible service pres- sure and temperature
■ PN 40
Materials
■ Terminal box: 3.2581 G AlSi12, powder-coated
■ Sheath: 1.4301 X5 CrNi 18-10
■ Electrode rod insulation: PTFE
■ Screw-in body: 1.4571, X6CrNiMoTi17-12-2
pH value
■ Maximum admissible = 10
Max. installed length at 238 °C, all measurements in mm
■ see “How to order”, Fig. 1 table
■ Do not shorten the electrode rod.
Measurement quality
The information below applies to a compensated uid con- ductivity range from 100 – 10000 μS/cm based on 25 °C.
NRG 26-61
■ Reading error: +/- 1 % range at the operating point
■ Limit error: + 1 % from MAX (AL.Hi)
– 1% from MIN (AL.Lo)
■ MAX hysteresis: – 3 % from limit value
■ MIN hysteresis: + 3 % from limit value
■ Resolution of reading on display: 0.1 %
■ Resolution for internal processing: 15 bits with plus or minus sign (16 bits)
Supply voltage
■ 24 V DC +/-20 %Power consumption
■ Max. 7 VA
Current input
■ Max. 0.3 AInternal fuse
■ T2A
Safety cutout at excessive ambient temperature
■ The cutout at excessive ambient temperature takes place at Tamb. = 75 °C
Input/output
■ Interface for CAN bus to ISO 11898, CANopen, insu- lated
■ M12 CAN bus connector, 5-pole, A-coded
■ M12 CAN bus socket, 5-pole, A-coded
Indicators and controls
■ 1 x 4-digit green 7-segment display for showing status information
■ 1 x red LED for indicating an alarm
■ 1 x green LED for indicating OK
■ 1 x rotary knob IP65 with button for menu navigation and test function
Protection class
■ III Safety Extra Low Voltage (SELV)IP rating to EN 60529
■ IP 65
Admissible ambient conditions
■ Service temperature: 0 °C – 70 °C
■ Storage temperature: – 40 °C – 80 °C
■ Transport temperature: – 40 °C – 80 °C
■ Air humidity: 10 % – 95 %
(non-condensing)
Weight
■ Approx. 2.1 kg
