Related Manuals for Greyline Instruments LIT25
Summary of Contents for Greyline Instruments LIT25
- Page 1 USER’S GUIDE Installation & Operation Instructions Level Indicating Transmitter Model LIT25 Manual Series 3.5.1...
- Page 2 Note: This page has been left blank intentionally.
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Page 3: Table Of Contents
LIT25 Level Indicating Transmitter Manual Series 3.5.1 INDEX Bench Test · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 4 Connections ·... -
Page 4: Bench Test
Connect Sensor as shown below, then apply Power. When properly connected a soft clicking can be heard from the sensor and figures will show on the LCD display. Test operation of the LIT25 by holding the sensor steadily and aiming at a flat, stable target 12 to 28" (305 to 711 mm) away from the end of the sensor. - Page 5 LIT25 Level Indicating Transmitter Manual Series 3.5.1 RECOMMENDED CONDUIT ENTRY Use a screwdriver to "knock-out" conduit entry points at bottom of enclosure. Use one entry for power input and relay wires. Use separate entry for 4-20mA and sensor cable. Page 5...
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Page 6: Calibration System
The LIT25 has a simple 2-key calibration system. Operating and calibration modes are shown on the 4-digit display. The keys are used to calibrate the LIT25, and to view operating mode and functions. If the keys are not used for 10 minutes, the LIT25 will automatically go to . -
Page 7: Menu
LIT25 Level Indicating Transmitter Manual Series 3.5.1 MENU See Page # TEMPERATURE Displays Temperature at Sensor 638.6 RANGE DISPLAY Displays Distance from Sensor to Target RANGE CM (Does not affect 4-20mA output or Relay) 123.4 NORMAL MODE LEVEL CM CALIBRATION UNITS SELECTION CALU Press Ç... -
Page 8: Calibration Units Selection
LIT25 Level Indicating Transmitter Manual Series 3.5.1 NORMAL MODE Flashes when good echoes are received ECHO RELAY ON - Relay energized LEVEL OFF - Relay de-energized When Calibrated When Calibrated for 20mA at Minimum Range for 20mA at (Maximum Level) -
Page 9: 4Ma Calibration
Wait for 4 = and press È to display 20 =. Now follow the same procedure to calibrate the distance from the Sensor for 20mA output. Remember that the LIT25 automatically reads LEVEL if 20 = is set to the minimum distance from the sensor. Calibrate in RANGE mode by setting 20= to the maximum distance from the sensor. -
Page 10: Signal Relay
LIT25 Level Indicating Transmitter Manual Series 3.5.1 SIGNAL RELAY The LIT25 Relay is rated 1ampere, 24VDC, 120/240VAC. It includes an RELAY INTERNALLY internally connected noise suppressor or “snubber” with 25K ohms impedance. (1 AMP) CONNECTED Very low AC electrical loads may appear to “leak” current. -
Page 11: Damping
ELC1 = Hold last reading Ç È ELC2 = Output 4mA ELC2 ELC3 = Output 20mA Ç ELC3 When one valid echo is received the LIT25 will resume normal operation. Page 11... -
Page 12: Output Simulation
LIT25 Level Indicating Transmitter Manual Series 3.5.1 OUTPUT SIMULATION MODE The Display will alternate between È Ç È Ç 721.4 È Ç 721.3 The Output Simulation function controls the digital display 4-20mA output and control relay. Use it to simplify calibration of remote 4-20mA devices such as chart recorders or remote displays, and to test relay set-points. -
Page 13: Temperature Indication
Use to check measurements during calibration. Ç (RANGE and UNITS flash.) RETURN TO NORMAL MODE Note: The LIT25 will not detect targets beyond the user entered maximum range. TEMPERATURE DISPLAY Displays temperature in degrees Centigrade measured at the Sensor. RETURN TO... -
Page 14: Enclosure Installation
Locate the enclosure within 500 ft (150 m) of the sensor. It can be wall mounted with four mounting screws (supplied) or panel mounted with Option PM Panel Mounting Kit from Greyline Instruments. Avoid mounting the enclosure in direct sunlight to protect the electronics from damage due to overheating and condensation. -
Page 15: Sensor Mounting
LIT25 Level Indicating Transmitter Manual Series 3.5.1 SENSOR MOUNTING LOCATION PREFERRED SENSOR LOCATION 1 FT HORIZONTAL 6" SCHEDULE 40 FROM SIDEWALL FOR PIPE IF EXTENSION EVERY 10 FT VERTICAL REQUIRED NOTE: 2 FT FOR EVERY 10 FT DEPTH ON APPLICATIONS WITH... - Page 16 LIT25 Level Indicating Transmitter Manual Series 3.5.1 SENSOR MOUNTING Notes: 1. Use the ¾" NPT "Isolation Coupling" supplied and hand tighten only. Do not clamp sensor body or stem. FLANGE MOUNT 2. Locate the sensor 1 ft (30 cm) from...
- Page 17 LIT25 Level Indicating Transmitter Manual Series 3.5.1 SENSOR MOUNTING/LOCATION GOOD - Tank Level/Inventory Applications Each LIT25 Level Transmitter includes a 90° non-contacting ultrasonic sensor. The sensor must be installed in a position to obtain unobstructed echoes from the liquid or material being measured.
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Page 18: Error/Warning Messages
(too close to the Sensor). Indicates target is further than the calibrated Maximum Range. Indicates that the LIT25 has experienced electrical interference strong enough to corrupt the memory. The LIT25 must be reset and recalibrated. Reset Procedure 1 : Reset will clear all memory. - Page 19 LIT25 Level Indicating Transmitter Manual Series 3.5.1 FIELD TROUBLESHOOTING SYMPTOMS CHECK Level Display - full scale - zero - erratic - random - higher than actual - fluctuating ECHO LOSS prompt - flashing Calibration Non-Linear EEEE - memory corruption SYMPTOMS...
- Page 20 LIT25 Level Indicating Transmitter Manual Series 3.5.1 SYMPTOMS FAULTS SOLUTIONS - wiring or installation close to - follow VSD manufacturer’s instructions variable speed drive or inverter for Drive grounding wiring and shielding C,D,E - AC/Chassis Ground missing on - install adequate Ground...
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Page 21: Troubleshooting
LIT25 Level Indicating Transmitter Manual Series 3.5.1 PZxx Series Sensors Troubleshooting Resistance measured across the coaxial cable ends (between the shield and centre wire) by mulitmeter indicates ambient temperature. Resistance vs. Temperature Page 21... -
Page 22: Applications Hotline
LIT25 Level Indicating Transmitter Manual Series 3.5.1 APPLICATIONS HOTLINE For applications assistance, advice or information on any Greyline Instrument contact your Sales Representative, write to Greyline or phone the Applications Hotline below: United States: Tel: 315-788-9500 Fax: 315-764-0419 Canada: Tel: 613-938-8956... -
Page 23: Product Return Procedure
LIT25 Level Indicating Transmitter Manual Series 3.5.1 PRODUCT RETURN PROCEDURE Instruments may be returned to Greyline for service or warranty repair. Obtain an RMA Number from Greyline - Before shipping a product to the factory please contact Greyline by telephone, fax or email to obtain an RMA number (Returned Merchandise Authorization). -
Page 24: Warranty
Manual Series 3.5.1 LIMITED WARRANTY _____________________ Greyline Instruments warrants, to the original purchaser, its products to be free from defects in material and workmanship for a period of one year from date of invoice. Greyline will replace or repair, free of charge, any Greyline product if it has been proven to be defective within the warranty period. -
Page 25: Appendix A
EXTRA SENSOR CABLE (ACCESSORY XC) Each Greyline LIT25 includes 25 ft. (7.6 m) or 50 ft. (15 m) continuous RG62AU coaxial Sensor Cable. Additional RG62AU coaxial cable and Cable Junction Box (Option JB) may be spliced and extended up to 500 ft (152 m) as required during installation. No adjustment is required when the sensor cable is extended or shortened. - Page 26 LIT25 Level Indicating Transmitter Manual Series 3.5.1 SENSOR INTRINSIC SAFETY - OPTION ISB Mounting 6.18“ 157mm SENSOR MODELS PZ32T-A/PZ32TE-A (with built-in temperature compensation) When connected through an Intrinsic Safety Barrier, the Greyline Mounting 6.89“ 6.18“ PZ32T-A and PZ32TE-A sensors are CSA certified for...
- Page 27 Connect Sensor as shown below, then Power. When properly connected a soft clicking can be heard from the sensor and figures will show on the LCD display. Test operation of the LIT25 by holding the sensor steadily and aiming at a flat, stable target 12 to 28" (305 to 711 mm) away from the end of the sensor.
- Page 28 LIT25 Level Indicating Transmitter Manual Series 3.5.1 Option PM2 Enclosure Panel Mount 6.43" 163.3 mm INSTRUCTIONS Mark Panel using Flange as a Template. Cut Panel outside the line. 5-3/16" 132 mm 7-3/16" 182 mm 8.40" 213.4 mm HOLE CENTRES 5.4" / 137.2 mm 1.75"...
- Page 29 LIT25 Level Indicating Transmitter Manual Series 3.5.1 ENCLOSURE SUNCREEN - Option SCR Do not mount instrument electronics in direct sunlight. Overheating will reduce the life of electronic components and condensate may form during the heat/cool cycles and cause electrical shorts.
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Page 30: Appendix B
(1/8 in. or less) can generally be disregarded. Use a stilling well in open channel applications. LIQUIDS - The LIT25 is ideal to monitor tank liquid level or inventory. Caustic, corrosive or very viscous liquids can be monitored without contacting the liquid. -
Page 31: Conversion Guide
LIT25 Level Indicating Transmitter Manual Series 3.5.1 CONVERSION GUIDE FROM MULTIPLY BY US GALLONS CUBIC FEET 0.1337 US GALLONS IMPERIAL GALS 0.8327 US GALLONS LITRES 3.785 US GALLONS CUBIC METERS 0.003785 LITRES/SEC 15.85 LITRES CUBIC METERS 0.001 BARRELS US GALLONS... -
Page 32: Specifications
LIT25 Level Indicating Transmitter Manual Series 3.5.1 SPECIFICATIONS Mounting Electronics Enclosure: NEMA4X (IP 66), watertight and dust 4.21" 107 mm tight, fiberglass with clear, shatterproof Lexan cover Accuracy: ±0.25% of Range or 2 mm (0.08"), whichever is greater, Repeatability: 0.1%, Linearity: 0.1% Display: ¾"... - Page 33 LIT25 Level Indicating Transmitter Manual Series 3.5.1 Optional Sensor PZ32TE 25' (7.6 m) RG62AU Maximum Range: 32 ft. (10m) 3/4" COAXIAL CABLE Deadband (blanking): Programmable, minimum 12” (305 mm) TEFLON Beam Angle: 8° ISOLATION Operating Frequency: 42 KHz COUPLING (SUPPLIED) Exposed Materials: Teflon Operating Temperature: -40°...
- Page 34 LIT25 Level Indicating Transmitter Manual Series 3.5.1 Optional PZ15 25 ft (7.6 m) RG62AU Maximum Range: 15 ft (4.57m) COAXIAL CABLE (50 ft 15 m OR Minimum Range (Deadband): 8" (203.2 mm) 100 ft 30 m OPTIONAL Operating Frequency: 92 KHz 3/4“...
- Page 35 LIT25 Level Indicating Transmitter Manual Series 3.5.1 Optional PZ34 25 ft (7.6 m) RG62AU COAXIAL CABLE (50 ft 15 m OPTIONAL) Maximum Range: 32 ft. (10 m) 3/4“ NPT Minimum Range (Deadband): 16" (406.4 mm) Operating Frequency: 46 KHz Beam Angle: 8º...
- Page 36 LIT25 Level Indicating Transmitter Manual Series 3.5.1 LIT25 Calibration Record SERIAL # _________________ DATE: ____________________ 638.6 RANGE CM 123.4 LEVEL CM Circle Selected Units and Enter Values in the Blank CALU PERCENT INCHES CM Spaces PERCENT INCHES CM PERCENT INCHES CM...
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