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.

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.

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