CF2318 Digital • Intelligent Direct Connection Level Transmitter

 General View
CF 2318  series level transmitter adopts diffused silicon
isolation  type sensor modules that are of high precision
and high  stability, converting level singal of the tested
liquid into  standard 4 ~ 20 mA DC electric signal
through  highly reliable amplifying circuit and precision
temperature  compensation. High quality sensor,
elaborate packaging  techniques and perfect assembling
technology  ensure excellent product quality and the
most optimal  performance of the product. The product
is of  separated structure that falls into such two
medium  testing types as cable type and anti-corrosion
agent type.  Anti-corrosion type product can withstand
the erosion  of many types of corrosive liquids, with
which  customer demands can be fulfilled to the most.
CF 2318  series level transmitter is divided into such
 two types as general type and intrinsic safety
explosion  proof type. Explosion proof type can be
widely used  in various tough and dangerous
industrial  environments.

 * Features
0 ~ 1.3 m to 0 ~ 15 m
Separated structure  type
Cable type,  anti-corrosion type
Lightning proof, RF  interference proof
Reversed polarity  protection and current
limiting protection
Intrinsic safety  explosion proof
Zero point and range  continuously
adjustable externally
High precision, high  stability, and high

 reliability.
HART communication  protocol for choice.
*Applications
Liquid level measuring  and controlling on
industrial sites
Hydrological  monitoring and controlling
Ocean navigation and  ship building
Urban water supply and  sewage water
treatment
Construction of large  river dams and water
conservancy  construction
Chemical industry and  medical equipment
*Technical index
Medium tested
Water and general non  corrosive liquid
(cable type)
Various corrosive  liquids (corrosive type)

Performance indexes
 Accuracy:
 ±0.1% (including the comprehensive error of nonlinearity, repeatability and  return error).
 Zero point deviation
 Not exceeding 亇0.5% of the range
 Zero point deviation:
 0% ~ + 80% of max range state
 Range adjustment:
 Adjustable freely between the min. range and max range state.
 Influence of over pressure:
 Less than 0.25% of max range state.
 Influence of power supply
 Less than 0.01% V of output range.
 Load influence:
 Negligible.
 Influence of temperature:
 ±1.5% of max range state (temperature range: - 20% ~ + 85%, including total  temperature
 influence of zero point and the range).
 Stability:
 ±0.25% / year of max range state.
 O Features of structure:
 Materials for isolation: 316L stainless steel diaphragm, ceramic diaphragm  (anti-corrosion type)
 Materials of sensor: 316 stainless steel, PTFE (anti-corrosion type)
 Outlet wire:
 Abrasive resistant and water proof aerated cable, Ø 9 outer diameter, double  layer (cable type)
 PTFE hose, Ø  7.5 outer diameter (anti-corrosion type)
 Junction box: aluminum alloy, surface coated with sprayed plastics.
 Indication meter: M3 digital LCD display meter
 Explosion proof mark: Ex ia II CT5 (intrinsic safety explosion proof  type);
Overall protection meeting requirements of IP 67 (meeting applicable  parameters)