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Wavelength Electronics LFI-3500 Series, User Manual

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Summary of Contents for LFI-3500 Series

Page 1: ...TM LFI 3500 Series Temperature Controllers User s Guide...

Page 2: ...2...

Page 3: ...3 LFI 3500 Series Temperature Controller User s Guide Publication number 92 130002D Copyright 1996 1997 Wavelength Electronics Inc P O Box 865 Bozeman MT 59771 All Rights Reserved Printed in U S A...

Page 4: ...e analog interface to disable an LFI 4500 s laser diode driver output if the temperature controller output is turned off for any reason Interlock any combination of LFI 3500 series temperature control...

Page 5: ...D sub rec s Both ends connectorized All cables are 1 meter long Rack Mount Kits Selection Guide Model Description RMK 502 Rack mount kit for two LFI modules Includes two 5 1 4 panels RMK 503 Rack mou...

Page 6: ...1 10 8 CONFIGURATION Sensor setting Thermistor 100 A reference current Loop Direction NTC for thermistors PID Constants P 32 I 1 second D OFF Temperature Limit HIGH Front Panel LIMITS Temperature Limi...

Page 7: ..._____________ 20 Operation with RTDs________________________ 22 Set the Thermoelectric Current Limit __________ 25 Set the Temperature Limit ___________________ 26 Further Information_________________...

Page 8: ...t could possibly cause bodily injury or death ATTENTION Ce symbole signale une proc dure ou des conditions dangereuses pouvant entra ner des blessures corporelles ou la mort VORSICHT Nichtbeachtung de...

Page 9: ...are removed NO USER SERVICEABLE PARTS INSIDE ATTENTION Risque d Electrocution Ne pas mettre sous tension cet instrument si le bo tier est endommag ou si les capots ou les faces sont retir s Aucun com...

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Page 11: ...nt is limited to the adjustment set by the Limit Current Trimpot This condition will remain until the current required to achieve temperature falls below the Limit Current Trimpot setting This conditi...

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Page 13: ...witch be in the ON position Switch 6 Integral Term This switch configures the integral time constant to be either one or ten seconds In the OFF position the integral time constant is one second In the...

Page 14: ...ns 5 6 Err Err Connect to LFI 4500 laser diode drivers Pin 7 Error Detect Error status Pin 8 On Off Detect On Off status Pin 9 Common Common for pins 7 8 10 Pin 10 Remote On Off Remote On Off control...

Page 15: ...correct power line fuse is installed and the power line voltage setting is correct The factory sets the following defaults based on the country of destination for initial shipment Destination Voltage...

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Page 19: ...perature Setpoint Rotate the Display Select Switch to the LINEAR position The value displayed will be the ambient temperature in Kelvin LINEAR IC Sensor Display Setting Press and hold the Display Set...

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Page 21: ...e ambient temperature in Kelvin LINEAR IC Sensor Display Setting Press and hold the Display Set Button Rotate the Adjust Potentiometer until the desired setpoint temperature is displayed Step 8 Enable...

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Page 23: ...ature NOTE Ignore the decimal point on the 3 digit display and the resistance of the RTD is indicated in ohms RTD Display Setting Press and hold the Display Set Button Rotate the Adjust Potentiometer...

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Page 28: ...e range than the thermistor but the thermistor will be more sensitive to temperature changes PID PROCESSOR The PID processor section consists of a proportional gain amplifier an integrator and a diffe...

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Page 30: ...above ambient OFF ON 2 3 4 5 6 7 9 1 10 8 P 64 I 10 sec D 250 msec Typical Settings for AD590 LM335 Small Thermal Load OFF ON 2 3 4 5 6 7 9 1 10 8 P 32 I 1 sec D none Medium Thermal Load OFF ON 2 3 4...

Page 31: ...d to the output connector This condition does not shut down the output current and is only used to indicate a possible output connection problem Sensor Error LED This LED lights red whenever the main...

Page 32: ...er amplifier to boost the power output of the controller In this case the thermoelectric is connected to the booster power amplifier while the LFI controller provides the PID temperature control This...

Page 33: ...ransfer function is 1 A V This output is internally limited to 10 mA maximum output current Pins 13 15 Temperature Setpoint Monitor Common This pin provides a buffered measurement of the temperature s...

Page 34: ...50 or 60 Hz switch selectable on rear panel Maximum AC Input 250VAC Power Consumption 160VA Peak Size W x D x H 106 mm x 300 mm x 163 mm 4 25 x 12 x 6 5 Weight 4 5 kg 10 lb Operating Temperature 0 to...

Page 35: ...k 0 19 99 k 0 19 99 k 10 A range 0 199 9 k 0 199 9 k 0 199 9 k 0 199 9 k Linear IC Sensors 0 1999 Kelvin 0 1999 Kelvin 0 1999 Kelvin 0 1999 Kelvin TE Current 2 50 A 2 50 A 5 0 A 5 0 A TE Voltage 9 99...

Page 36: ...36 MECHANICAL SPECIFICATIONS...

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Page 38: ...purchaser s application No other warranty exists either expressed or implied and consequential damages are specifically excluded The remedies provided herein are the Buyer s sole and exclusive remedie...

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