LFI3751 5 A Digital Temperature Control Instrument
- Drive ±5 A of TEC or RH current
- 9.5V Compliance Voltage
- Digital PID Improves Stability for RTDs
- Addressable RS-232 or USB
- Supports Thermistors, RTDs, IC sensors
- Free LabVIEW drivers
- Linear Stability: 0.001°C
- PID Autotune
- Autoranging sensor bias currents
- Heat and cool current limits
- High and low temperature limits
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1 each$2,449.00
-
2 - 5 each
$2,449.00$2,376.00 -
6 - 14 each
$2,449.00$2,363.00 -
15+ each
$2,449.00$2,351.00
Contact Factory for High Volume Pricing
Price adjustments will be reflected in the cart. For availability information please contact us.
All prices are in US dollars. Prices do not include shipping charges. All prices will be confirmed at time of shipment and may include pass-through tariff estimates.
If ordering from or shipping to Australia, China, or Hong Kong, please contact your distributor.
Power Supply: 115 / 230 VAC 60 / 50 Hz
Temperature Control Output Current: up to ±5 A
Temperature Stability: 0.001°C (10 kΩ thermistor at 25°C) over one hour
Stability across ambient: 0.001°C (10 kΩ thermistor at 25°C) over an hour – Ideal for scanning applications
Setpoint Resolution: 12 bit D to A
Features:
-Digital version provides better set point resolution and stability with low resolution sensors such as RTDs
-Digital version also offers improved overshoot suppression, 50% faster settling times, and faster calibration.
-High and Low Temperature Limits
-Heat and Cool Current Limits
-Digital PID controller with Autotune minimizes overshoot and time to temperature
-RS232 or USB interface
-Free Labview drivers or Benchlink software
-Easy sensor calibration
-Compatible with multiple sensors – especially for low resolution RTDs
-Autoranging sensor bias current optimizes sensor feedback voltage
-Can operate with unipolar current for Resistive Heaters
Front Panel of LFI3751 Temperature Controller

Rear Panel of LFI3751 Temperature Controller (note Analog Input is only available on the LFI3751 Analog)

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| SKU | DESCRIPTION | PRICE | IMAGE |
| WCB401 | WCB401 RS-232 cable, 6-ft, DB 25-9 pin | $50.00 | |
| WCB402 | WCB402 RS-232 cable, 6-ft, DB 25-25 pin | $50.00 | |
| WCB403 | WCB403 RS-232 cable, 2-ft, DB 25-25 pin | $49.00 | |
| WCB404 | WCB404 USB-RS232 Adapter Cable | $119.00 | |
| LDMOUNT-5A | LDMOUNT 5A Butterfly Laser Diode Mount |
$599.00 You save (%) |
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| WCB316 | WCB316 LDMOUNT Cable for the LFI3751 | $98.00 | |
| WCB103 | WCB103 LFI3751 Output Cable | $105.00 | |
| SKU | DESCRIPTION | PRICE | IMAGE |
| LFI3751 ANALOG | LFI3751 5 A Analog Temperature Control Instrument |
$2,049.00 You save (%) |
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