Gemu 3020 Flow Transmitter

Liên hệ

D3, Kdc Mieu Noi, Dinh Tien Hoang St., W.3, Binh Thanh Dist., Hcmc, Vietnam

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0938.214.498 |Mr Cảnh|

Email: canh.ans@ansvietnam.com

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Flow Transmitters
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		GEMU 3020 Flow Transmitter Precise volume flow measurement Separation of media between the measurement point and the transducer Short inlet and outlet connections Standard industrial measurement signals (works calibrated) High-resolution turbine measuring principle All wetted parts in plastics and ceramics Integrated flow rectifier Linear output characteristic Extremely low pressure loss Optional mounting position and quick mounting by means of unions Direct display optionally available in l/min, m³/h, gal/min




		GEMU 3021 Flow Transmitter Construction The GEMU 3021 intelligent flow transmitter can be used for measuring liquid inert and corrosive aqueous media. The keypad at the front of the unit enables simple setting of measurement units, required display values etc. Features High-resolution turbine flow measurement Medium wetted parts in plastic, sapphire and ceramics Totalizer type (flow counter) Frequency/Current output signals Reset input for resetting the accumulated flow rate Batch controller type (dosing function) 2x relay outputs 1x binary output for batch end 2x binary inputs for selecting batches 1x binary input as start signal Extremely low pressure ...

Description

Changeover contact, GEMU 1250
Limit switches, GEMU 1251-1257 for flowmeters operating on the variable area principle. Reading of the level of the float at the switching points.
Instrument sensors, GEMU 1270-1273 for flowmeters operating on the variable area principle. Continuous reading of the level of the float.

Construction
GEMU 1250
A change-over contact is built into the limit switch.

GEMU 1251-1257
Bistable reed contacts are built into the limit switches which are actuated by the magnet incorporated in the float.

GEMU 1270-1273
The instrument sensors contain reed contacts which are triggered by the magnetic flowmeter float. GEMU 1270/1271 have a voltage output signal via voltage divider.
GEMU 1272/1273 are equipped with an integrated 2-wire measuring transducer and realize a current output signal.

Function
The limit switches and instrument sensors are fixed to the dovetail sections moulded onto the flowmeter type series GEMU 800 and GEMU 850 (see data sheets 800/850). The float in the flowmeter is equipped with a permanent magnet for this application.

GEMU 1251-1257
When the magnetic float has passed the contacts fixed to the tube at least once, the following conditions occur:

	above	below
	contact	contact
Max. contact (GEMU 1251/1256)	closed	open
Min. contact (GEMU 1252/1257)	open	closed

The contacts then remain in this position, even if the float moves a long way from the min. or max. contact and will only change when the float passes the respective contact again.

GEMU 1270-1273
The reading from the GEMU 1270/1271 instrument sensor is emitted as voltage output signal via a voltage divider (0-10 kΩ). GEMU 1272/1273 produce a current output signal which can be directly processed without any further conversion. The function of the limit switches or instrument sensors is neither affected by the working pressure, nor by the conductivity, concentration or density of the medium. The application of the flowmeters with continuous reading or limit switches together with a measuring transducer is suitable for use with conducting, non-conducting and also with turbid media.

GEMU 1250-1257 Limit Switches Instrument Sensors

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Specifications · Note on Index X

Specifications

Type		1250 1251 1252 1256 1257 1270 1271 1272 1273

Housing Material		Impact resistant plastic PBTP

Electrical Connection		Standard connector supplied with instrument sensor Standard connector supplied with switch

Protection Class to EN 60529		IP 65

For Flowmeter Type		800 800/850 DN 10-20 800/850 DN 25 850 DN 10-20 850 DN 25

Combination within the GEMU modular System		GEMU 1275 GEMU 1284

Note on Index X

Operation in potentially explosive areas only in conjunction with an isolation switch amplifier complying with ATEX which is designed for operating electro-mechanical switching contacts and for which separate operating instructions apply.

Item #

Item Name

Type

For Flowmeter Type

Measuring Transducer

Metering Length

Number of Switch Points

Distance of Reed Contact

1250

Change-over Contact

1250

800/850 DN 25

N/A

1251

Max. Limit Switches

1251

800/850 DN 25

N/A

1252

Min. Limit Switches

1252

800/850 DN 25

N/A

1256

Max. Limit Switches

1256

800/850 DN 10-20

N/A

1257

Min. Limit Switches

1257

800/850 DN 10-20

N/A

1270 000Z2501

Instrument Sensors

1270

800

Without

230 mm

4.25

1270 000Z2503

Instrument Sensors

1270

800

Without

230 mm

100

2.3

1271 000Z10O1

Instrument Sensors

1271

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Trần Thị Liên

HẾT HẠN

Mã số :	9241998
Địa điểm :	Hồ Chí Minh
Hình thức :	Cần bán
Tình trạng :	Hàng mới
Hết hạn :	05/01/2019
Loại tin :	Thường