2510-AT

The Keithley 2510-AT Autotuning TEC SourceMeter is a specialized 50W temperature control instrument designed for testing laser diode modules. It combines thermoelectric cooler (TEC) control, temperature measurement, and automated PID parameter selection.

Component Testing Semiconductor Testing Source Measure Unit Thermometry

Specifications

General

Parameter	Value
Interfaces	GPIB (IEEE-488.2), RS-232, Trigger Link (8-pin micro-DIN), Digital I/O (DB-9)
Display	12-character vacuum fluorescent display (VFD) with status indicators

Physical

Parameter	Value
Power Supply	100V to 240V AC, 50Hz or 60Hz, 120 VA maximum
Operating Temperature	0°C to 50°C
Dimensions (W×H×D)	213 mm × 89 mm × 370 mm
Weight	3.2 kg
Form Factor	Half-rack width, 2U height

TEC Output & Control

Parameter	Value
Maximum Output Power	50 W
Current Limit Range	0 to 5.25 A
Voltage Limit Range	0 to 10.5 V
Control Algorithm	Proportional-Integral-Derivative (PID) with Autotuning capability
Temperature Stability (1 Hour)	±0.005 °C
Temperature Stability (24 Hours)	±0.01 °C

Temperature Sensor Compatibility

Parameter	Value
Thermistor Compatibility	100 Ω to 100 kΩ (2-wire or 4-wire)
RTD Compatibility	100 Ω Platinum (3-wire or 4-wire)
IC Sensor Compatibility	AD590, LM335
Temperature Display Resolution	0.001 °C

System & Interfaces

Parameter	Value
Analog Output Voltage Range	0 to ±10 V (proportional to temperature)
Command Language Support	SCPI (Standard Commands for Programmable Instruments)

Environmental & Compliance

Parameter	Value
Storage Temperature	-25°C to 65°C
Operating Humidity Range	70% RH non-condensing at 35°C

TEC Output

Parameter	Value
Output Current Range	-5.00 A to +5.00 A DC
Output Voltage Range	-10.0 V to +10.0 V DC
Current Source Accuracy	±(0.4% + 16 mA)

Measurements

Parameter	Value
Voltage Measure Accuracy	±(0.1% + 1 mV)
Current Measure Accuracy	±(0.4% + 16 mA)
Voltage Measure Resolution	300 µV (16-bit)
Current Measure Resolution	150 µA (16-bit)

Sensor Interface

Parameter	Value
Thermistor Measurement Range	100 Ω to 100 kΩ
RTD Resistance Range	100 Ω to 1 kΩ
Maximum Source Lead Resistance	0.1 Ω per lead (4-wire source)
Maximum Sense Lead Resistance	10 Ω per lead (4-wire sense)
Thermistor Excitation Current	10 µA, 100 µA, 1 mA (range dependent)
RTD Excitation Current	1 mA
RTD Types Supported	100 Ω Platinum (Alpha = 0.00385, 0.003916, 0.00392)
IC Sensors Supported	AD590 (1 µA/K), LM335 (10 mV/K)

Control & Autotuning

Parameter	Value
Tuning Mode	Autotuning PID or Manual PID

Protection & Safety

Parameter	Value
Protective Limits	Voltage limit, Current limit, High temperature limit, Low temperature limit, Open sensor detection

Connectivity

Parameter	Value
Trigger Link Connector	8-pin micro-DIN
Digital I/O Port	4 open-collector outputs, 1 TTL input

Output Specifications

Parameter	Value
TEC Output Ripple and Noise (0.1 Hz to 10 Hz)	< 500 µA rms (typical)
TEC Output Ripple and Noise (10 Hz to 10 MHz)	< 1.5 mA rms (typical)
TEC Output Resolution	16-bit
Analog Output Resolution	16-bit

Measurement Performance

Parameter	Value
Thermistor Measurement Accuracy	±(0.04% of reading + 1.5 Ω) (90-day, on 10 kΩ range)
RTD Measurement Accuracy	±(0.06% of reading + 0.05 Ω) (90-day)
Analog Output Accuracy	±(0.15% of output + 10 mV) (90-day)

Control Performance

Parameter	Value
Autotuning Method	Ziegler-Nichols (Z-N) / Modified Z-N

General Specifications

Parameter	Value
Warm-up Time	1 hour

Power Specifications

Parameter	Value
Mains Power Frequency	50 Hz / 60 Hz
Maximum Power Consumption	120 VA

Technology

Thermoelectric Cooler (TEC) Source & Measure with Automated PID Tuning

Applications

Laser diode module characterization and temperature stabilization

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