Gestra NRG21-51

level electrodes NRG 21-1

Technical data
- continued -
NRG 21-11, NRG 21-51
- continued -
Electronic module NRV 2-29 Supply voltage 12 V DC Response sensitivity Range 1:
Water ≥ 0.5 µ S/cm Range 2:
Water ≥ 20 µ S/cm Range 3:
Fuel oil EL εr 2,3 Output ≥ 0 – ≤ 7 V DC, level proportional Adjustor 1 Code switch with 6 poles for setting the measuring range
Enclosure
PPO (Noryl®) Electrical connection 1 Screw-type terminal strip with 3 poles, cable gland with integrated cable clamp M 16
Protection
IP 65 to EN 60529 Admissible ambient temperature Max. 70 °C Scope of supply
NRG 21-51 1 Level electrode type NRG 21-51 1 Joint ring 49 x 55 form D to DIN 7603,
made from 2.4068, bright annealed 1 Installation manual
NRG 21-11 1 Level electrode type NRG 21-11 1 Joint ring 27 x 32 form D to DIN 7603,
made from 2.4068, bright annealed 1 Installation manual Name plate/marking
Equipment designation
Safety note Betriebsanleitung beachten See installation instructions Voir instructions de montage
NRG 21-11
PN 6
G 3/4
1.4571
GESTRA AG
Meßlänge / Range H= mm
D-28215 Bremen
Mat-Nr.:
Betriebsanleitung beachten See installation instructions Voir instructions de montage
NRG 21-51
PN 6
G 1 1/2
GESTRA AG
Fig. 1
1.4571
IP 65
6 bar (87psi) 164°C (327°F)
Pmax Tmax
Pressure rating, thread type, material number, protection
IP 65
6 bar (87psi) 164°C (327°F) T amb = 70°C (158 °F)
Pmax Tmax
Disposal note
D-28215 Bremen
Dichtung:
FKM
EPDM
Meßlänge / Range H= mm
CE Marking
Mat-Nr.:
Manufacturer Application range
Material number 7