srs SR630-16 channel thermocouple monitor

srs SR630-16 channel thermocouple monitor

主要指标与说明The SR630 is a 16-channel thermocouple monitor designed to read, scan, print and log temperatures or voltages. You can use any one of seven standard thermocouple types to read temperatures from -200 °C to +1700 °C. For remote monitoring applications, the SR630 can time-stamp and store up to 2000 readings in non-volatile memory for later analysis.SR630 Thermocouple Monitor16 channelsB, E, J, K, R, S and T type thermocouples0.1 °C resolutionDisplays °C, °F, K and VDC2,000 point memoryFour analog outputs proportionalto temperatureGPIB, RS-232 and printer interfaces

SR630 Thermocouple MonitorThe SR630 is a 16-channel thermocouple monitor designed to read, scan, print and log temperatures or voltages. You can use any one of seven standard thermocouple types to read temperatures from -200 °C to +1700 °C. For remote monitoring applications, the SR630 can time-stamp and store up to 2000 readings in non-volatile memory for later analysis.Temperature readings from the SR630 can be viewed on the front panel or queried via the instrument's standard RS-232 or GPIB interfaces. In addition, the standard Centronics printer port provides convenient hardcopy output in either tabular or strip-chart format.Voltage MonitorThe SR630 can also be configured as a 16-channel DC voltmeter with full-scale ranges from 30 mV to 100 V (1 mV resolution). As a voltmeter, the unit has 0.05 % accuracy and 1 μV input offset drift. Each channel can be set independently to monitor either temperature or voltage, giving the SR630 even more flexibility in your application. Four rear-panel outputs are also available to provide a voltage proportional to the temperature of the first four input channels. The voltage outputs can be used to drive recorders or to control external instrumentation.InputsSixteen screw-terminal inputs are mounted on a rear-panel isothermal block for cold junction compensation. The isolated differential inputs have a 250 V breakdown level, allowing the SR630 to tackle difficult applications such as temperature profiling of electrically live equipment. Each of the 16 channels may be independently set to display in units of °C, °F, K, mV or V. Similarly, thermocouple type, nominal temperature, temperature limit, and alarms may be uniquely set for each channel, providing complete flexibility in the configuration of the instrument. Access to any channel parameter is provided through the front panel or via the computer interfaces. The SR630 can store up to nine entire instrument configurations including thermocouple type and temperature limits for all 16 channels.OutputsThere are four analog outputs that are proportional to the readings on channels one through four. Both the slope (m) and offset (b) of the equation, Vout = ±mX + b, are changed by setting the nominal temperature and chart span for the corresponding channel. X is either temperature or voltage, depending on the setting for each channel.You may use the analog outputs to drive chart recorders or they can provide a feedback signal for proportional temperature control systems. They may also be used as fixed-level, analog control signals (set via the computer interfaces).

AlarmsEach channel can be programmed individually with an upper and lower temperature limit. An audio alarm and a relay closure indicate when any channel exceeds its preset temperature or voltage limits. The front-panel LED display will indicate which channel has exceeded its limit.Data LoggingAn internal, battery backed-up clock/calendar is used to time-stamp temperature readings. The SR630 can be set to scan, time-stamp, and record data on up to 16 channels at intervals from 10 to 9999 seconds. Data is either sent immediay to the printer, or stored in the internal 2,000 point buffer for output at a later time (via GPIB or RS-232).Built-In Printer InterfaceA standard Centronics printer interface makes it simple to get hardcopy output of temperature or voltage scans. Two hardcopy formats are provided. The SR630 can print a continuous strip chart showing up to 16 different temperatures ( see example below). In addition, data can be printed in a tabular format (see example below and left) which logs the time, date, and temperature or voltage for each channel. Strip Chart OutputAnalog MultiplexerThe SR630 can also function as a 1:15 analog multiplexer. Any of the first 15 input channels can be switched out to channel 16 and passed on to other instruments. This feature is useful in ATE systems and many other monitoring applications.Available ThermocouplesAlthough the SR630 will read types B, E, J, K, R, S and T type thermocouples, for many applications type K, (Chromel/Alumel), will serve well. K-type thermocouples offer a wide temperature range (-200 °C to +1250 °C), a low standard error, and good corrosion resistance.SR630 Thermocouple MonitorThermocoupleChannels 16Thermocouple types B, E, J, K, R, S, TDisplay units °C, °F and KDisplay resolution 0.1 °CTemperature displays Actual, Nominal, or OffsetAccuracy 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.

InputsChannels 16Input type Independent, floating and differentialInput resistance 10 MΩ between + and - terminals, >1 GΩ to groundInput capacitance 0.001 μFInput bias current <100 pAInput protection 250 VrmsOpen circuit check 250 μACommon mode ±200 VDCVoltmeterFull-scale display (±9.999, ±99.99 or ±999.9) mVDC, (±9.999 or ±99.99) VDCRange select AutomaticResolution ±1 of least significant displayed digitOffset ±2 of least significant displayed digitGain accuracy 0.05 %Conversion rate 10/s for 50 Hz line, 12/s for 60 HzLine rejection >100:1Scanning and Data LoggingScanning Selected channels will be scanned. Dwell time between scans is set from 10 s to 9999 s.Alarm Temperature or voltage limit for each channelScan enable All channels may be scanned or skippedPrinter output Voltages, Temperatures, Time and Date as a list or in a graphical formatData memory Last 2000 measurements in battery backed-up memoryGeneralAnalog outputs Four analog voltage outputs proportional to temperature of channels 1, 2, 3 and 4Relay output Switching 10 AStore and recall Nine locations for instrument set-upInterfaces 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 HzDimensions 8.5" × 3.5" × 13" (WHL)Weight 9 lbs.Warranty One year parts and labor on defects in materials and workmanship

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