# Stanford Research Systems SR630 16-Channel Thermocouple Monitor (Pre-Owned) # Stanford Research Systems SR630 16-Channel Thermocouple Monitor (Pre-Owned) ## Key Features At A Glance - 16 isolated, floating differential channels with a 250 V breakdown level for profiling electrically live equipment - Reads B, E, J, K, R, S and T thermocouples across a −200 °C to +1700 °C span at 0.1 °C display resolution - GPIB, RS-232 and Centronics printer interfaces standard; all functions settable and readable via RS-232 or GPIB - Each channel independently configurable for °C, °F, K, mV or V with per-channel thermocouple type, limits and alarms - 2,000-point battery-backed non-volatile memory time-stamps scans at dwell intervals from 10 s to 9999 s - Four rear-panel analog outputs proportional to channels 1–4 for driving recorders or proportional control systems - Also operates as a 16-channel DC voltmeter (30 mV to 100 V full scale) with 0.05 % gain accuracy - Built-in 1:15 analog multiplexer routes any of channels 1–15 to channel 16 for ATE and monitoring systems The Stanford Research Systems SR630 is a 16-channel thermocouple monitor designed to read, scan, print and log temperatures or voltages. Using any one of seven standard thermocouple types, it reads temperatures from −200 °C to +1700 °C and displays results in °C, °F, K, mV or V on the front panel. Each of the 16 channels can be set independently to monitor either temperature or voltage, giving the instrument broad configuration flexibility for multi-point monitoring tasks. The SR630 is built for remote monitoring applications, where it can time-stamp and store up to 2,000 readings in non-volatile memory for later analysis. Its isolated differential inputs and 250 V breakdown level let it tackle difficult applications such as temperature profiling of electrically live equipment. The four analog outputs can drive chart recorders or provide a feedback signal for proportional temperature control systems, and the integrated 1:15 analog multiplexer makes the unit useful in ATE systems and many other monitoring applications. ValueTronics supplies the SR630 from our own 20,000 square-foot secure warehouse at 1675 Cambridge Drive in Elgin, Illinois, where we stock and hold our inventory rather than sourcing to order. Every pre-owned unit is supported by that in-house operation: pre-owned units are inspected and functionally verified by our technicians before they ship, while new units ship factory-sealed exactly as received from the manufacturer. ## Product Core & Specifications Specification Value Thermocouple Channels 16 Thermocouple types B, E, J, K, R, S, T Display units °C, °F and K Display resolution 0.1 °C Temperature displays Actual, Nominal, or Offset Accuracy 0.5 °C for J, K, E and T; 1.0 °C for R, S and B. Errors are for the SR630 only. Standard errors for thermocouple wire are 2 to 5 times the error due to the SR630. Inputs Channels 16 Input type Independent, floating and differential Input resistance 10 MΩ between + and − terminals, >1 GΩ to ground Input capacitance 0.001 µF Input bias current <100 pA Input protection 250 Vrms Open circuit check 250 µA Common mode ±200 VDC Voltmeter Full-scale display (±9.999, ±99.99 or ±999.9) mVDC, (±9.999 or ±99.99) VDC Range select Automatic Resolution ±1 of least significant displayed digit Offset ±2 of least significant displayed digit Gain accuracy 0.05 % Conversion rate 10/s for 50 Hz line, 12/s for 60 Hz Line rejection \>100:1 Scanning and Data Logging Scanning Selected channels will be scanned. Dwell time between scans is set from 10 s to 9999 s. Alarm Temperature or voltage limit for each channel Scan enable All channels may be scanned or skipped Printer output Voltages, temperatures, time and date as a list or in a graphical format Data memory Last 2000 measurements in battery backed-up memory General Analog outputs Four analog voltage outputs proportional to temperature of channels 1, 2, 3 and 4 Relay output Switching 10 A Store and recall Nine locations for instrument set-up Interfaces RS-232, GPIB and Centronics ports (standard). All instrument functions may be set and read via RS-232 or GPIB. Power 10 W, 100/120/220/240 VAC, 50/60 Hz Dimensions 8.5" × 3.5" × 13" (WHD) Weight 9 lbs. Warranty One year parts and labor on defects in materials and workmanship > **Important:** Maximum common-mode input: ±200 VDC. Input protection: 250 Vrms. > **Important:** Accuracy errors are for the SR630 only. Standard errors for thermocouple wire are 2 to 5 times the error due to the SR630. > **Important:** Thermocouples are not included with the SR630; K-type thermocouple probes are listed separately in the ordering information (O630KF1, O630KF2, O630KT1, O630KT2) and must be ordered to use the instrument. > Recommended pairing: the SRS O630-series K-type thermocouples (O630KF1/KF2 fiberglass or O630KT1/KT2 teflon, 5 ft and 10 ft) and the O630RMS/O630RMD rack-mount kits listed in the ordering information. ## About this Pre-Owned unit This pre-owned unit is inspected and functionally verified in-house before it ships and is backed by our pre-owned warranty. To confirm its exact condition, firmware revision, installed options, or included accessories for your application before ordering, contact our Test Architects. - Warranty included - Functional verification included - Standard Calibration Upgrade Options: No Calibration Required, NIST Traceable, Z540.1 or ISO 17025 with Data, Z540.3 Guardbanding with Data. - Note that unnecessary accessories may not be included (contact Test Architect to confirm). ValueTronics supplies both new and used test and measurement equipment. New units ship factory-sealed, exactly as received from the manufacturer; every used unit is inspected and functionally verified in-house at our 20,000 sq ft secure facility in Elgin, Illinois before it ships. Our Test Architects can help you select the condition, calibration, and configuration that fit your application. **Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.** ## Details - **Price:** 0.0 USD - **Vendor:** Stanford Research Systems - **Type:** Data Log - **Tags:** Data Logger, Manufacturers, Meters & DAQ, product_manual_group_1, Product_used, Stanford Research ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 0.00 USD | In stock | ## Images - Stanford Research Systems SR630 16-Channel Thermocouple Monitor (Pre-Owned) --- > Source: [ValueTronics](https://valuetronics.com/products/sr630-stanford-research-data-logger-used) > Updated: 2026-06-27