Name

Piping powder flow detector

Model

QBS-PF

NSB-PF

Explosion
proof
construction

Non-explosion-proof

Intrinsically safe construction(i3nG5)

Measurement
system

Capacitive system Large-diameter type	Micro-capacitive system Minimum-diameter catalyst type

Description

This in-pipeline detectors are designed to measure, in a manufacturing process, the volume fraction occupied by the powder flowing in piping. If DITECH’s proprietary micro-capacitive system (1/1000 pF) is used, the piping powder flow detector measures powders flowing at a very low flow rate, as well as measuring in high or ordinary flow rate piping. This detectors are suitable for measuring the catalyst additives, etc.

Operating
principles

The piping powder flow detector detects the capacitance corresponding to the density of the powder that flows through piping and outputs a standardized signal.

Specifications

Output signal	DC4～20mA　DC1～5V　※ One of the above signal
Input power	Model QBS-PF (Model PS-0PF)：　AC105V/210V 50/60Hz or DC24V Model NSB-PF (Model PS-2)：　　 AC105V/210V 50/60Hz
Allowable temperature	Detector：　－25℃～＋70℃ (Depends on the specifications) Transducer：　　Model PS-0PF：　－10℃～＋50℃ Transducer：　　Model TR-2PF：　－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 pressure	Detector：　20MPa (approx. 204kg/cm²G) (Depends on the specifications)
Pipe size	Detector：　20B ～ φ6mm
Weight	Transducer：　　Model PS-0PF：　7.6kg Transducer：　　Model TR-2PF：　7.6kg Power source：　Model PS-2：　　 7.6kg
Size	Transducer：　　Model PS-0PF：　250(W)×145(D)×275(H) Transducer：　　Model TR-2PF：　250(W)×145(D)×275(H) Power source：　Model PS-2：　　 250(W)×145(D)×275(H) (mm)
Surface treatment	Detector：　Inner surface polishing, etc.
Installation	Detector：　Flange mounting, etc.
Material	Detector：　SUS304　SUS316　Hastelloy 　Quartz glass, etc. Lining：　PTFE　Glass　Rubber, etc. Head case：　Light alloy　SUS304　Salt resistant paint case, etc.

Configuration

Model QBS-PF
(Non-explosion-proof type)
＜Separated transducer type＞

This model is composed of detector unit, transducer, bridge box and special cable.

Detector

(Piping type)

Transducer

PS-0PF

Special cable

DSC

Options (QBS-PF)

Integrated type indicator for detector

Integrated type indicator for transducer

Separated type indicator

Lightning arrestor

Monitoring device

Common options available for models

Configuration

Model NSB-PF
(Intrinsically safe construction / i3nG5)
＜Totally separated detector unit type＞

This model is composed of detector unit, transducer, bridge box, 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-PF.