Summary of Contents for Sitron SC404
- Page 1 USER’S GUIDE Installation, Operation, Maintenance Instructions SC404 Capacitive Level Sensor...
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Page 2: Table Of Contents
Contents Introduction ..........4 Models &... -
Page 3: Introduction
This flexible level measurement device works well in many industrial processes and process media including a variety of liquids, powders and pastes. The SC404 is made with 316SS rigid rods or 316SS cables (coatings are required for conductive mediums) and can also be made with a secondary reference rod or reference sheath built into the process connection. -
Page 4: Models & Dimensions
Reference Sheath Reference Rod (also w/ reference cable) 1”NPT 1”NPT 1 1/2”NPT ½” 1/4” ½” ½” Note: Minimal insertion for the SC404 is ½ meter Process Connections ANSI 150# Tri-Clamp Flange Threaded ANSI 300# 3/4” 1 ½” 1” 1 ½”... -
Page 5: Wiring Diagram
B- Adjust Sensibility (Sub gain) C- Adjust Zero (begin scale) D- Adjust Span (end of scale) SC404-G Gain 1- Power Supply (+) 24Vdc / 4...20mA 2- Power Supply ( ) 3- Ground Sitron-USA - Phone (516) 935-8001 / Fax (800) 516-1656... - Page 6 Wiring Diagram SC404 with G2 A- Adjust Sensibility (Gain) B- Adjust Sensibility (Sub gain) C- Adjust Zero (begin scale) D- Adjust Span (end of scale) SC 404 4...20mA 24Vdc 1- Power Supply (+) (+-10%) 24Vdc / 4...20mA Zero Span 2- Power Supply ( )
- Page 7 1- Probe (+) 2- Probe( ) 11- Power Supply (+) 111mm 12- Power Suppy ( ) in 24 VDC 4...20mA ISO 420 4...20mA Zone 0 44mm 4...20mA Security Barrier ISO 420 Transmitter 4...20mA Sitron-USA - Phone (516) 935-8001 / Fax (800) 516-1656...
- Page 8 Wiring Diagram Different wiring scenarios for the N1 electronics Connecting directly into the power supply SC404 0 ... 100 % Gain Zero Span 10...30VDC 4...20mA 24Vdc 4 ... 20 mA + + + Ground Power Supply Electrical connection using the Galvanic Isolator for a PLC with an active input card.
- Page 9 Wiring Diagram Different wiring scenarios for the G1 electronics Connecting directly into the power supply 0 ... 100 % SC404-G Gain V=10...30VDC I=4...20mA 12...30Vdc 4 ... 20 mA + + + Ground Power Supply SC404-G Gain V=10...30VDC I=4...20mA 24Vdc (+/- 10%)
- Page 10 24Vdc 24Vdc (+/- 10%) (+-10%) Zero Span Power Gain Supply _ _ _ + + + Passive PLC input card _ _ _ 4 ... 20 mA Ground + + + Sitron-USA - Phone (516) 935-8001 / Fax (800) 516-1656...
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Page 11: Mounting Note
Mounting Note Materials that are conductive will cause a Bare Rod short circuit between a bare stainless steel Coating (PTFE or Halar) probe and the tank wall. For that reason we recommend the use of Teflon or other types Conductive Medium of insulating coatings on the rod's surface Steel Tank (Fig. -
Page 12: Installation
500mm, and from the tip of the rod to the bottom of the tank is 100mm, this will prevent a false signal and possible build up between the wall and probe Fig. 2 (Fig. 1 correct Fig. 2 Incorrect). Sitron - Equip. Eletrônicos Ltda. - Fone/Fax (5511) 3825-2111 / 3825-2171... - Page 13 Installation Sheath Fig. 1 Level The tank must be free from turbulence or vortices throughout use. If this is not possible we highly recommend a stilling well or sheath (Fig. 1 correct, Fig. 2 incorrect). Ensure that mounting position does not interfere with any obstructions wthin the vessel or tank (Fig.
- Page 14 If the cable is secure to the bottom of the vessel it must be isolated and the vessel is steel it must be isolated so that it does not create a short circuit. Sitron-USA - Phone (516) 935-8001 / Fax (800) 516-1656...
- Page 15 Installation Reference Rod Fig. 1 Level In order to achieve a linear output signal, the main rod of the probe must have a parallel reference either to the tank or to a secondary reference rod or sheath. If the probe is mounted without this parallel reference within a cylindrical tank that is mounted on its side, the output...
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Page 16: Calibration
8) With the 20mA signal adjusted it is best to re- adjust the Zero. Drain the tank back down to the starting level and re-adjust (if necessary) the minimum level to 4mA one more time. After this stage, set-up is complete. Sitron-USA - Phone (516) 935-8001 / Fax (800) 516-1656... - Page 17 While Gain the SC404 can be tested on a bench, the results of calibrating it will not be the same as calibrating the unit within the SC404...
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Page 18: Handling
Scratching the coating could interfere with the probe performance. Fig. 5 When cleaning the rod use a soft brush or any other similar object. Sitron-USA - Phone (516) 935-8001 / Fax (800) 516-1656... -
Page 19: Technical Specifications
Glass filled nylon, Aluminum 290 PSI (20 Bar) Max Pressure Ambient / Operating temp. -10 to 60ºC / -10 to 80°C (120°C extended neck) Class Protection IP 65 (N1) IP66 (G1/G2) Sitron-USA - Phone (516) 935-8001 / Fax (800) 516-1656... -
Page 20: Trouble Shooting
Signal under Sensitivity to low Adjust sensibility again 20mA Add a Reference Reference is incorrect Sheath the rod Lack of linearity Coating on the rod Send back for repair is damaged Sitron-USA - Phone (516) 935-8001 / Fax (800) 516-1656... -
Page 21: Ordering Information
CABLE GLAND W/ 1/2" BSP 3/4" BSP CABLE GLAND W/ 3/4" BSP 1/2" NPT CABLE GLAND W/ 1/2" NPT 3/4" NPT CABLE GLAND W/ 3/4" NPT OPTIONS Medium Temp - 50mm 316SS Neck (80-120C) SC404 Sitron-USA - Phone (516) 935-8001 / Fax (800) 516-1656... -
Page 22: Terms & Conditions
In this case, Sitron reserves the right to adjust the pricing and or delivery of the order, which will be agreed to by both parties before further work is performed on the order. Any such requests will be priced according to the scope of changes and the status of the current order. - Page 23 Sitron's field technicians or Sitron's authorized Sales Representatives, in order to be covered by Sitron's warranty. Sitron shall be under no liability in respect to any defect from fair wear and tear, willful damage, negligence, abnormal working conditions, failure to follow Sitron's instructions (whether written or verbal), misuse, modification or alteration or attempted repair of the Goods without Sitron's approval.
- Page 24 Sitron - Brasil 1800 Prime Place R. Baronesa de Itu, 83 Hauppauge, NY 11788 São Paulo - SP - 01231-001 PH: 516-935-8001 T .: (5511) 3825-2111 www.sitron.com FX: 800-516-1656 F .: (5511) 3825-2171 BRASIL: vendas@sitron.com USA / Other Countries: info@sitron.com...
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