Điện cực đo mức nước Gestra NRG 21-11 NRG 21-51
Technical Data – continued –
Level electrode NRG 21-51
Operating pressure
PN 6, 6 bar at 164°C
Mechanical connection
ScrewedG 11⁄2 A, ISO 228
Materials
Screwin body 1.4571, X6CrNiMoTi17122
Insulating seal of electrode rope PTFE
Earth wire (optional) 1.4401 X5 CrNiMo17122
Oring system FKM, e. g. mineral oil, lye, dyebaths up to 160 °C, water up to 100 °C.
Oring system EPDM, e. g. water up to 140 °C.
Length of installation / measuring range
Max. 15000 mm
Weight
approx. 2.1 kg
Electronic module NRV 2-29
Supply voltage
12 V DC
Sensitivity of response
Range 1: Water ≥ 20 μS/cm
Range 2: Water ≥ 0.5 μS/cm
Range 3: Fuel oil EL εr 2,3
Output
≥ 0 – ≤ 7 V DC, level proportional
Adjustor
1 sixpole code switch for setting the measuring range
Enclosure
PPO (Noryl®)
Electrical connection
1 Screwtype terminal strip with 3 poles, cable gland with integrated cable clamp M 16
Protection
IP 65 to DIN EN 60529
Max. admissible ambient temperature
70 °C
