~ZTD-G Level Indicator Transmitter
Operation Principle: The liquid level difference caused the buoyancy of displacer change, then it will be transferred into the torque tube unit. The Hall-effect sensor senses the magnetic field change and converts the magnetic signals into current signals.
Consist: DLT9000head, measuring chamber, measuring mechanism, displacer, torque tube, etc.
Application field: It can be used for measuring liquid level, interface and density.
Technical Data:

·Power supply:12~30V DC; the controller has reverse polarity protection
·Output signal:4~20 mA DC with HART
·Measuring range:300mm—2500mm (can also over range)
·Nominal pressure:?42.0MPa
·Nominal diameter:DN40 or as customers’ request
·Ambient temperature:-40 ºC to +80 ºC (when ?–30ºC, no LCD display.)
·Operating temperature:-70ºC to +400ºC
·Measuring accuracy:0.5%
·Output: current signal,process variable,process temperature,percentage range,rotation angle of torque tube.
·Medium density difference:?0.08g/cm³
·Material of torque tube:Standard configuration Inconel 600,or Monel, HasetlloyC-276
·Wetted material:304,316L or as customers’ request
·Flange standard:HG/T20592-2009,HG/T20615-2009 or as customers’ request
·Power entry:Two M20×1.5 (female) or as customers’ request
·Explosion-proof:
IECEx
Ex ia ?C T5 Gb(-40°C?Tamb?80°C)Ui=30Vdc;Ii=93mA;Pi=0.7W;Ci=0nF;Li=22?h
Ex d ?C T5~T6 Gb T5:-40°C?Tamb?80°C;T6:-40°C?Tamb?60°C
TUV
Ex ia ?C T5 Gb(-40°C?Tamb?80°C) ; Ui=30Vdc;Ii=93mA;Pi=0.7W;Ci=0nF;Li=22?H
Ex d ?C T5~T6 Gb T5:-40°C?Tamb?80°C;T6:-40°C?Tamb?60°C
PCEC
Ex ia IIC T5 (Tamb<80°C);T6 (Tamb<60°C);Ui=30Vdc ;Ii=93mA; Pi=0.7W ;Ci=0nF ;Li=22?H;
Ex d IIC T5 T5:-40°C?Tamb?80°C;T6:-40°C?Tamb?60°C
·Functional Safety Level: SIL 2
·Protection grade:IP66
·Alarm jumper:For the self-diagnosis to the inaccuracy failure of the process variables (for example, the electronic module failure). Configure the process variables of high and low alarms.

 We also have two different digital head(Made from Fisher and Foxboro) for you to choose if you have special demands.