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Model 675傳感器

Overview 

Description 
The Model 675 is specifically designed for slurry and highly viscous applications where clogging of the sensor area is common. The Model 675 uses a 3.5” flush diaphragm to prevent unwanted clogging of the sensing area. This submersible level device is made of 316SS which offers outstanding environmental protection and is available in depths up to 138 feet of water. 

The non-fouling flush diaphragm and cage assembly are designed to eliminate unwanted buildup of debris， fats， oils， greases， and other bio-solids by eliminating any potential gaps on the measurement area. The high integrity seal’s heavy construction eliminates the effects of turbulence on the sensor. 

The 675 Series Transmitters indicate the level of liquid by continuously measuring hydrostatic pressure via its sensing element， an ion implanted silicon semiconductor chip with integral Wheatstone Bridge circuit. Once the sensor measures the pressure， the data is transmitted by a 4 to20mA output signal. This design provides for excellent reliability in remote and inaccessible locationss. 

The Model 675 is approved for intrinsically safe operation in hazardous locationss as designated by Class I， Div 1， Groups A， B， C & D and Class II， Groups E， F & G. when used with an approved barrier. 

All Model 675 transmitters are equipped with a sealed cable termination area and moisture absorbing desiccant. The purpose is to restrict moisture from entering the transmitter through the cable vent. 

Features 
• Oversized 3.5” flush diaphragm to prevent clogging 
• 0.25% Full Scale Accuracy 
• Intrinsically Safe for Class 1 Division 1 
• Custom Pressure Ranges & Cable Lengths 
• Extremely rugged 316L SS construction 
• Two-wire， 4-20mA standard output 
• Reverse polarity and surge protection 

Applications 
• Lift Stations 
• Sewage Levels 
• Slurries 
• Storm Runoffs 
• Pump Control

Ranges： 
Custom ranges available upon request 
Feet of Water - 0/14， 0/35， 0/69， 0/138 
PSI - 0/6， 0/15， 0/30， 0/60 
Meters of Water - 0/4， 0/10， 0/21， 0/42 
BAR - 0/14， 0/35， 0/69， 0/138 

Output： 
4 to20mA， 2 wire， current limited to 30mA DC 

Power Supply： 
12 to 40 VDC with reverse polarity surge protection; Limited to 28 VDC for Intrinsic Safety with Approved Power Supply. 

Loop Resistance： 
1400 ohms maximum at 40 volts 

Temperature Range： ** 
Ambient Operating： -25° to 180°F (-32° to 82°C) 
Storage： -40° to 180°F (-40° to 82°C) 
** If submerged in a liquid that has frozen， damage will result. Limit high temperature to 140°F (60°C) for intrinsically safe operation. 

Overrange Effect： 
±0.15% full scale at 200% of maximum range 

Overrange Limit： 
200% of maximum range 

Burst Pressure： 
3X Upper Range Limit 

Accuracy： 
±0.25% full scale， BFSL (including linearity， hysteresis and repeatability) 

Zero Offset： 
±1.00% full scale set at 77°F (25°C) 

Span： 
±0.50% full scale set at 77°F (25°C) 

Temperature Effects： 
Compensated： 32° to 122°F (0°C to 50°C); 
Maximum： ±2.5% URL output change for ±25°C temperature change within compensated range when calibrated at 25°C. Consult factory for lower or alternate pressure ranges. 

Power Supply Effect： 
±0.005% full scale per volt 

Diaphragm Seal： 
316L SS construction with 4.75” OD and 3.5” sensing area 

Construction： 
 

Media Compatibility： 
Reference materials of construction 

Electrical Connection： 
Attached 22 gauge， vented， polyurethane， shielded， cable. Unspliced lengths available up to 5000 ft. (1662 m) 

Weight： 
7 lb. 3 oz (Without cable)Cable) 

該產品由深圳市蘑菇官方网站进入IOS電子科技有限公司提供，銷售商地址位於深圳市南山區前海路振業國際商務中心1206。請您仔細閱讀產品使用說明書，正確使用。

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