Sign In Join Free
1 / 1
4-20ma output level instrument manufacturer for oil refinery
| Model No. : | ZTD |
|---|---|
| Brand Name : | DDTOP |
Product description
1.Measuring range: 300mm to 6000mm
4-20ma output level instrument manufacturer for oil refinery Product Description Summary ZTD series displacer level transmitter is manufactured by FISHER and DDTOP. The core component is FISHER DLC3010 imported with original packaging, the rest parts are all made in China by DDTOP. Operation principle ZTD-G Smart Displacer Level (Interface) Transmitter consists of DLT9000 level transmitter, measuring chamber, measuring mechanism, displacer and torque tube, etc. The liquid level changing triggers the change of the buoyancy of displacer, then it will be transferred into the torque tube unit. This makes the torque tube and core axle rotate synchronously. At the same time, the magnetic steel parts that fixed at the core axle of the torque tube turn rotary displacement. The Hall-effect sensor senses the magnetic field change and converts the magnetic signals into current signals. DLT9000 level transmitter uses micro-controller and relatedelectronic circuit to measure process variable, supply current output, drive LCD and support HART communication. Micro-controller receives the electric signals that have been temperature-compensated and linearised. Meanwhile, compensates the liquid density change caused by the change of the process temperature, then supplies 4~20mA current output signals. LCD can indicate analog output, process variables, process temperature (if RTD is installed), degrees of the torque tube rotation and percent range of variable, etc.
Power supply | 12~30V DC; the controller has reverse polarity protection.(when HART is communicating, the voltage of controller ≥17.75V DC) |
Output signal | 4~20 mA DC (Positive direction – the increase of level, interface, or density make output increase; Negative direction – the increase of level, interface, or density make output decrease.) |
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% |
Influence from power supply | When the voltage of the power supply varies between min. and max. ,the output change is within <±0.2%. of the full scale. |
LCD display | 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 ⅡC T5 Gb(-40°C≤Tamb≤80°C)Ui=30Vdc;Ii=93mA;Pi=0.7W;Ci=0nF;Li=22μh Ex d ⅡC T5~T6 Gb T5:-40°C≤Tamb≤80°C;T6:-40°C≤Tamb≤60°C TUV Ex ia ⅡC T5 Gb(-40°C≤Tamb≤80°C) ; Ui=30Vdc;Ii=93mA;Pi=0.7W;Ci=0nF;Li=22μH Ex d ⅡC 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=22μH; Ex d IIC T5 T5:-40°C≤Tamb≤80°C;T6:-40°C≤Tamb≤60°C |
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. |
Send your inquiry to this supplier
Product Alert
Subscribe to your interested keywords. We will send freely the latest and hottest products to your Inbox. Don't miss any trade information.
Your use of this website constitutes acknowledgement and acceptance of our Terms & Conditions.
Copyright © 2009-2024 Bossgoo Co., Ltd. All rights reserved.
