GESTRA于1902年创立。GESTRA的目标是优化工厂的蒸汽和能源使用，从而提高运营可靠性和流程效率。
|
Technical data
|
|
|
Design and mechanical connection
|
Thread ¾ - 14 NPT
|
|
Permitted service pressure and temperature
|
464 psi at 460 °F (32 bar at 238 °C)
|
|
Materials
|
|
|
Terminal box:
|
3.2581 G AlSi12, powder-coated
|
|
Cover tube:
|
1.4301 X5 CrNi 18-10
|
|
Electrode rod insulation:
|
PTFE
|
|
Screw-in body:
|
1.4404 / F316L
|
|
Supply voltage
|
24 V DC +/-20% SELV / PELV / CLASS2
|
|
Power consumption
|
Max. 7 W
|
|
Current input
|
Max. 0.3 A
|
|
Internal fuse
|
T2A
|
|
Safety cutout at excessive ambient temperature
|
Cutout takes place at an excessive ambient temperature of Tamb. = 167 °F (75 °C)
|
|
Analog output
|
1 actual value output 4 - 20 mA, proportional to level, galvanically isolated
Maximum output load 500 Ω
M12 connector, 5-pole, A-coded
|
|
Protection class
|
III Safety Extra Low Voltage (SELV / PELV / CLASS2)
|
|
IP rating
|
NEMA type 3R, 3RX, 5 to NEMA 250
IP 65 to EN 60529
|
|
Permitted ambient conditions
|
|
|
Service temperature:
|
32 - 158 °F (0 - 70 °C)
|
|
Storage temperature:
|
-40 - 176 °F (-40 - 80 °C)
|
|
Transport temperature:
|
-40 - 176 °F (-40 - 80 °C)
|
|
Air humidity:
|
10% - 95% (non-condensing)
|
|
Weight (dependent on length of electrode)
|
NRGT 26-2 approx. 3.96 lb (1.8 kg) (with 11.81 inch (300 mm) measuring range)
|
GESTRA液位变送器NRGT26-2产品介绍
NRGT 26-2 液位变送器可用于连续测量加压蒸汽和热水装置或冷凝水和给水罐中的水位。 0% 到 100% 的校准测量范围构成了 4-20 mA 电流输出的线性曲线。
• 例如，通过合适的液位控制器，变送器的 4-20 mA 实际值输出可用作带 MIN/MAX 警报的水位控制器。
• 液位变送器安装在加压蒸汽锅炉设备、储罐、热水设备进水管线的内部或外部液位罐中。 现场安装的保护管确保功能可靠。
• 电容式NRGT 26-2 液位变送器可与导电NRG 1x-50 或NRG 1x-51 液位电极安装在同一保护管或液位罐中。
The NRGT 26-2 level transmitter can be used to continually measure the water level in pressurized steam and hot-water plants, or in condensate and feedwater tanks. The calibrated measuring range from 0% to 100% constitutes the linear profile of the 4-20 mA current output.
• With a suitable level controller, the transmitter’s 4-20 mA actual value output can be used as a water level controller with MIN/MAX alarm, for example.
• Level transmitters are installed on the inside of pressurized steam boiler plants, tanks, feed lines of hot-water plants, or in external level pots. A protective tube installed on site ensures reliable function.
• A capacitive NRGT 26-2 level transmitter can be installed in the same protective tube or level pot as a conductive NRG 1x-50 or NRG 1x-51 level electrode.
GESTRA液位变送器NRGT系列其他常用型号：
GESTRA NRGT 26-1
GESTRA NRGT 26-1S
GESTRA NRGT 26-2
GESTRA NRGT 26-2S