Manufacturer of Level Switch, Level Transmitter,
Detector and Sensor DITECH,LTD.
DITECH,LTD.
Foam detecting switch
Capacitance system
Impedance system
NQH-FO
NSH-FO
NQS-FO
NSS-FO
proof
construction
Non-explosion-proof
Intrinsically safe construction(i3nG5)
Flameproof
construction(d2G4
Non-explosion-proof
Intrinsically safe construction(i3nG5)
measured
Soap foam, beer foam, latex foam, etc. |
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This switch is designed to detect the soap foam, beer foam, latex foam, etc. Either capacitance system or impedance system can be offered depending on the characteristics of the objects to be measured.
NQH-FO
(Non-explosion-proof type)
NSH-FO
(Explosion-proof type)
| Measurement system | Automatic correction capacitance system |
| Stable detection range | Min. ≦ 0.1pF (Type Y) Max. ≧ 15000pF (Type C) Peculiar resistor ∞～5Ω (Type Y～Type C) |
| Output contact | Model NQH-FO： a,c,b 200V 1A 100VA (Non-inductive load) / Open collector / Thyristor / SSR Model NSH-FO (Model PS-7)： a,c,b 200V 1A 100VA (Non-inductive load) Model NSH-FO (Model PS-8)： a,c,b 250V 5A (Non-inductive load) |
| Input power | Model NQH-FO： AC105V/210V 50/60Hz or DC24V Model NSH-FO (Model PS-7)： AC105V/210V 50/60Hz Model NSH-FO (Model PS-8)： AC105V/210V 50/60Hz |
| Power consumption | Model NQH-FO： 4.5W Model NSH-FO： 4W |
| Time lag | Model NQH-FO： 0～10sec Variable (option) |
| Allowable temperature | Detector： －200℃～＋1100℃ (Depends on the specifications) Transducer： Model PS-3FO： －10℃～＋50℃ Transducer： Model TR-6FO： －25℃～＋70℃ Power source： Model PS-7： －10℃～＋50℃ Power source： Model PS-8： －10℃～＋50℃ Special cable： Model RG (standard type)： －10℃～＋60℃ Special cable： Model TEF (heat resistance use)： －200℃～＋260℃ |
| 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-3FO： 2.0kg Transducer： Model TR-6FO： 1.75kg Power source： Model PS-7： 2.0kg Power source： Model PS-8： 7.8kg |
| Size | Transducer： Model PS-3FO： 154(W)×95(D)×166(H) Transducer： Model TR-6FO： 154(W)×95(D)×166(H) Power source： Model PS-7： 80(W)×101(D)×210(H) Power source： Model PS-8： 220(W)×78(D)×262(H) (mm) |
| Installation | Detector： Flange mounting Screws mounting Ferrule IDF, 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. |
NQS-FO
(Non-explosion-proof type)
NSS-FO
(Explosion-proof type)
| Measurement system | Impedance system |
| Stable detection range | Min. ≦ 0.5pF Max. ≧ 1000pF Peculiar resistor ∞～0.5Ω |
| Output contact | Model NQS-FO： a,c,b 250V 5A (Non-inductive load) / Open collector / Thyristor / SSR Model NSS-FO (Model PS-7)： a,c,b 200V 1A 100VA (Non-inductive load) |
| Input power | Model NQS-FO： AC105V/210V 50/60Hz or DC24V Model NSS-FO (Model PS-7)： AC105V/210V 50/60Hz |
| Power consumption | Model NQS-FO： 7W Model NSS-FO： 4W |
| Allowable temperature | Detector： －200℃～＋1100℃ (Depends on the specifications) Transducer： Model PS-1FO： －10℃～＋50℃ Transducer： Model TR-1FO： －25℃～＋70℃ Power source： Model PS-7： －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-1FO： 4.3kg Transducer： Model TR-1FO： 4.3kg Power source： Model PS-7： 2.0kg |
| Size | Transducer： Model PS-1FO： 200(W)×149(D)×220(H) Transducer： Model TR-1FO： 200(W)×149(D)×220(H) Power source： Model PS-7： 80(W)×101(D)×210(H) (mm) |
| Installation | Detector： Flange mounting Screws mounting Ferrule IDF, 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. |
(Capacitance system)
Model NQH-FO-1
(Non-explosion-proof type)
＜Integrated transducer unit type＞
This model is of compact type in which both detector unit and transducer are integrated.
(Capacitance system)
Model NQH-FO-2
(Non-explosion-proof type)
＜Separated transducer type＞
This model is composed of detector unit, transducer (relay power source) and special cable. Transducer may be installed far from the area exposed to Heat, Steam, Vibration, Powder or Gas. This is Non-explosion-proof type and has the same characteristics as those of Integrated transducer unit type as to performance.
(Capacitance system)
Model NSH-FO-1-1
(Intrinsically safe construction / i3nG5)
＜Integrated transducer unit type＞
This model is composed of detector unit with self-contained transducer and relay power source (Model PS-7). The transducer contained in the detector head requires no special cable. For this reason, the dangerous area may be kept away unlimitedly from the safe area. As to performance, this model has the same characteristics as those of Model NQH-FO.
(Capacitance system)
Model NSH-FO-2-1
(Intrinsically safe construction / i3nG5)
＜Separated transducer type＞
This model is composed of detector unit, transducer, relay power source (Model PS-7) and special cable. The transducer may be installed far from the area exposed to Heat, Steam, Vibration, Powder or Gas. This model has the same characteristics as those of Model NQH-FO and the equivalent performance to those of Integrated transducer unit type.
(Capacitance system)
Model NSH-FO-1-2
(Flameproof construction / d2G4)
＜Integrated transducer type＞
This model is composed of detector unit with self-contained transducer and relay power source (Model PS-8). The transducer contained in the detector head requires no special cable. For this reason, the dangerous area may be kept away unlimitedly from the safe area. As to performance, this model has the same characteristics as those of Model NQH-FO.
(Capacitance system)
Model NSH-FO-2-2
(Flameproof construction / d2G4)
＜Separated transducer type＞
This model is composed of detector unit, transducer, relay power source (Model PS-8) and special cable. The transducer may be installed far from the area exposed to Heat, Steam, Vibration, Powder or Gas. This model has the same characteristics as those of Model NQH-FO and the equivalent performance to those of Integrated transducer unit type.
(Impedance system)
Model NQS-FO
(Non-explosion-proof type)
＜Separated transducer type＞
This model is composed of detector unit, transducer and special cable.
(Capacitance system)
Model NSS-FO
(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 3 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 NQS-FO.
