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SIKA > 流量和液位測量

Positive displacement flow sensors with connection plate / Ductile cast iron cas

型號：Type VZ GG

Highly accurate measurement with excellent repeatability
HT version for temperatures up to 150 °C with thermally insulated preamplifier (option)
Various casing and sealing materials. Universally applicable for different media to be measured
Standard process connection via connection plates. Quickly replaceable without long process interruption

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產品特點產品規格

The SIKA gearwheel volume sensors are suitable for the detection of volumetric flows with high as well as varying viscosity in the following areas of application, among others:

consumption measurement
control of filling processes
dosing of oils and chemicals
detection of paints / varnishes

A very precisely fitted pair of gearwheels inside the housing forms the measuring unit. The inflowing medium sets the gearwheel pair in rotation. The rotary movement is scanned by sensors without contact. Since each individual tooth generates a pulse, this results in a very high resolution. Thus, even the smallest volumes can be precisely measured or dosed.

To obtain a 2-channel flow-proportional frequency signal, two sensors are installed in the measuring unit (offset by ¼ tooth pitch). With appropriate further processing of the signal, one obtains an even higher resolution and the possibility of detecting the direction of flow.

The maximum pressure drop should not exceed 16 bar. This limits the measuring range for highly viscous media (see pressure drop diagrams).

Your advantages
Series	VZGG / VZVA
	High-precision measurement with excellent repeatability HT version for temperatures up to 150 °C with thermally insulated preamplifier (option) Variety of casing and sealing materials g Universally use for different measurement media Standard process connection via connecting plates g Quickly replaceable without lengthy interruptionsto the process

Type	VZ0.025	VZ0.04		VZ0.1	VZ0.2	VZ0.4	VZ1	VZ3	VZ5
Technical data
Size	0.025	0.04		0.1	0.2	0.4	1	3	5
Process connection	Via subplate with lateral female thread connection
*Measuring range [l/min]**	0.008...2	0.02...4		0.04...8	0.16...16	0.2...40	0.4...80	0.6...160	1…250
Geometric gear volume [cm³]	0.025	0.04		0.1	0.245	0.4	1.036	3	5.222
Measuring accuracy	±0.3 % of reading (21 mm²/s)
Repeatability	< 0.1 % under same conditions
Start of gear wheel rotation [l/min]	0.001	0.004		0.008	0.01	0.01	0.02	0.03	0.04
Viscosity of medium	1...100 000 mm²/s
Medium temperature range**	FKM		FEP		EPDM
→Standard →Without preamplifier (for TD8250) →High temperature	-15...120 °C 0...60 °C -15...150 °C		-30...120 °C 0...60 °C -30...130 °C		-30...120 °C 0...60 °C -30...130 °C
Ambient temperature range**	FKM		FEP		EPDM
Ambient temperature range**	-15...80 °C		-30...80 °C		-30...80 °C
Pressure rating →VZ 0.025... to VZ 1... →VZ 3... to VZ 5... →High pressure	Max. 400 bar Max. 315 bar Higher pressure rating on request
Degree of protection EN 60529	IP65
Output signals
→Puls rate [Pulse/l]	40 000	25 000		10 000	4081.63	2500	965.25	333.33	191.5
→Resolution [ml/Puls]	0.025	0.04		0.1	0.245	0.4	1.036	3	5.222
→Signal shape	2-channel, squarewave, PNP, pulse duty ratio 1:1
Electrical data
Electrical connection	Plug connector cable socket
Power supply	12...30 VDC / max. 90 mA
Power consumtion [short-circuit proof]	0.9 W

* For media with high viscosity the measuring range is reduced. The max. pressure drop shouldn’t exceeded 16 bar (see pressure drop diagrams).
** Depending on sealing material

代理品牌

Positive displacement flow sensors with connection plate / Ductile cast iron cas

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