Manufacturer of Level Switch, Level Transmitter,
Detector and Sensor DITECH,LTD.
DITECH,LTD.
Name
Capacitive Moisture meter
Model
QBS-MM
NSB-MM
Explosion
proof
construction
proof
construction
Non-explosion-proof
Intrinsically safe construction(i3nG5)
Description
Capacitive moisture meter is designed to measure, in a manufacturing process, the moisture content of the object to be measured, drawing on the capacitive correlation between the object being measured and the moisture content. The detectors have to be installed at either upper side or lower side in the vessel (tank) to contact the object to be measured.
Operating
principles
principles
Every material has intrinsic electrical characteristics such as permittivity and conductivity. This transmitter detects electrostatic capacitance changes generated by the rise or fall of the water content of the measured substance in the tank, and then converts these changes into an integrated signal. A variety of meters and electrodes are available according to the measurement condition.
Specifications
| Measurement range | 0～100% |
| Output signal | DC4～20mA DC1～5V ※ One of the above signal |
| Input power | Model QBS-MM (Model PS-0MM)： AC105V/210V 50/60Hz or DC24V Model NSB-MM (Model PS-2)： AC105V/210V 50/60Hz |
| Power consumption | 10W |
| Allowable temperature | Detector： －200℃～＋1100℃ (Depends on the specifications) Transducer： Model PS-0MM： －10℃～＋50℃ Transducer： Model TR-2MM： －25℃～＋70℃ Power source： Model PS-2： －10℃～＋50℃ Special cable： Model DSC-15 (high accuracy use)： －10℃～＋60℃ Special cable： Model DSC-05 (small size)： －10℃～＋60℃ Special cable： Model DSC-13 (heat resistance use)： －50℃～＋200℃ |
| Allowable load | Detector： 2000㎏ Concentrated at detection tip (Depends on the specifications) |
| Allowable pressure | Detector： 100MPa (approx. 1020kg/cm2G) (Depends on the specifications) |
| Weight | Transducer： Model PS-0MM： 5.5kg Transducer： Model TR-2MM： 4.3kg Power source： Model PS-2： 7.6kg |
| Size | Transducer： Model PS-0MM： 216(W)×125(D)×259(H) Transducer： Model TR-2MM： 200(W)×149(D)×220(H) Power source： Model PS-2： 250(W)×145(D)×275(H) (mm) |
| Installation | Detector： Flange mounting Screws mounting IDF Grayloc connector Ferrule Ring joint Lens Aminco Non-standard flange, etc. |
| Material | Detector： SUS304 SUS316 SUS316L Hastelloy Titanium Tantalum Nickel PTFE Ceramic, etc. Lining： PTFE Glass Rubber, etc. Head case： Light alloy SUS304 Salt resistant paint case, etc. |
Configuration
Model QBS-MM
(Non-explosion-proof type)
＜Separated transducer type＞
This model is composed of detector unit, transducer and special cable.
Configuration
Model NSB-MM
(Intrinsically safe construction / i3nG5)
＜Totally separated detector unit type＞
This model is composed of detector unit, transducer, relay power source and special cable that is 4 core control cable. As the transducer is designed to be installed in a dangerous area, the special cable can be made short enough to minimize picked-up noises, thus permitting a stable performance to be obtainable. As to performance, this model has the same characteristics as those of Model QBS-MM.
