Keithley Integra Series
3 models with full specifications from Keithley.
The Keithley Integra Series integrates high-performance 6.5-digit digital multimeters with multi-channel data acquisition and logging systems. Designed for automated testing, environmental monitoring, and system integration, this family includes the Keithley 2700, Keithley 2701, and Keithley 2750. These instruments allow engineers to configure multi-channel measurement setups with varied slot capacities, communication interfaces, and specialty measurement modes.
- Base DMM Resolution
- 6.5 digits (22-bit)
- Max Channels
- Up to 200 (Keithley 2750)
- Expansion Slots
- 2 or 5 slots
- Operating Temperature
- 0°C to 50°C
Models in this series
| Model | Type | Continuity Threshold Range | Dimensions (W×H×D) | Display |
|---|---|---|---|---|
| 2750 | Multimeters | 1 Ω to 1000 Ω (user selectable) | 485 × 89 × 370 | Vacuum Fluorescent Display (VFD) |
| 2700 | Multimeters | 1 Ω to 1000 Ω | 213 mm × 89 mm × 370 mm | 12-character alphanumeric VFD with 7-character secondary display |
| 2701 | Data Acquisition | 1 Ω to 1000 Ω | 213 mm × 89 mm × 370 mm | 12-character alphanumeric Vacuum Fluorescent Display (VFD) |
Core Performance and Measurement Capabilities
The Integra Series instruments share a highly precise 6.5-digit (22-bit) measurement engine. They deliver high-resolution voltage, resistance, and temperature measurements. For example, the Keithley 2700 and Keithley 2701 provide a 1-year DC voltage accuracy of ±(0.003% of reading + 0.0005% of range), supporting DC voltage ranges from 100 mV to 1000 V. Additionally, these systems offer flexible temperature monitoring with support for J, K, N, T, E, R, S, and B thermocouple types, as well as 2.252 kΩ, 5 kΩ, and 10 kΩ thermistors. Both 2-wire and 4-wire resistance measurement configurations are supported across the family.
Physical Form Factors and Slot Configurations
System scalability depends on the physical chassis size and slot capacity of the specific model. The Keithley 2700 and Keithley 2701 are half-rack width units measuring 213 mm by 89 mm by 370 mm and weighing 3.7 kg. Both units feature two plug-in module slots, which accommodate up to 80 differential channels. For larger test configurations, the Keithley 2750 utilizes a full-rack 2U form factor measuring 485 mm by 89 mm by 370 mm and weighing 6.5 kg. This larger footprint houses five expansion slots that support up to 200 multiplexed channels.
Interface and Memory Options
Communication interfaces and data storage vary across the models. The Keithley 2700 and Keithley 2750 use GPIB (IEEE-488.2) and RS-232 interfaces for standard bench or system setups. The Keithley 2701 is tailored for networked data acquisition, featuring an Ethernet (10Base-T) port and an RS-232 port, alongside an internal volatile memory capacity of 450,000 readings to store large datasets. For timing precision, the Keithley 2701 and Keithley 2750 include battery-backed real-time clocks.
Frequently asked questions
- How many channels can these systems support?
- The Keithley 2700 and Keithley 2701 support up to 80 differential channels using two slots. The Keithley 2750 supports up to 200 multiplexed channels using five expansion slots.
- Which models in this series feature Ethernet connectivity?
- The Keithley 2701 features integrated Ethernet (10Base-T) and RS-232 interfaces, whereas the Keithley 2700 and Keithley 2750 provide GPIB and RS-232 interfaces.
- What specialized electrical measurements does the Keithley 2750 support?
- The Keithley 2750 offers specialized low-resistance measurement capabilities, including a 1 µΩ resolution and dry circuit ohms measurement support.