701265 High-Precision Temperature Input Module
Temperature/high-precision voltage Module (2 ch)
Thermocouple (K, E, J, T, L, U, N, R, S, B, W, iron-doped gold/chromel), high sensitivity range (0.1mV/div), and low noise (±4 µVtyp.)
Applicable to DL350, DL850 series, DL950 and SL1000.
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Item |
Specifications |
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| Standard operating conditions | Temperature: 23 ±5°C Humidity: 20% to 80% RH After a 30-minute warm-up and after calibration |
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| Function | Temperature (thermocouple) or voltage measurement (switchable) | ||||||||||||||||||
| Number of input channels | 2 | ||||||||||||||||||
| Input coupling | TC, DC, and GND
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| Data update rate | 500Hz | ||||||||||||||||||
| Measurement range/accuracy1 | [Voltage measurement] Voltage sensitivity: 100 µV/div to 10 V/div (1-2-5 steps) Voltage accuracy: ±(0.08% of 10 div + 2µV) [Temperature measurement]2
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| Frequency characteristics1 (–3 dB point when a sine wave of amplitude ±3 div is applied) |
[Voltage measurement] DC to 100 Hz [Temperature measurement] DC to 100 Hz |
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| Maximum input voltage4 (at a frequency of 1 kHz or less) |
Both temperature and voltage input: 42 V (DC + ACpeak) | ||||||||||||||||||
| Maximum allowable common mode voltage5 (at a frequency of 1 kHz or less) |
Both temperature and voltage input: 42 V (DC+ACpeak) (CAT II, 30 Vrms) | ||||||||||||||||||
| Vertical resolution | [Voltage measurement] During voltage input: 2400 LSB/div [Temperature measurement] When measuring temperature: 0.1°C |
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| –3 dB point when AC coupled low frequency attenuation point | [Voltage measurement] 0.5 Hz or less | ||||||||||||||||||
| Input connector | Binding post | ||||||||||||||||||
| Input impedance | Approx. 1 MΩ | ||||||||||||||||||
| Common mode rejection ratio | [Voltage measurement] 80 dB (50/60 Hz) or more (typical6) [Temperature measurement] 120 dB or more (50/60 Hz, with 2-Hz filter ON, signal source resistance of 500 Ω or less) (typical6) |
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| Residual noise level (Input section shorted) |
[Voltage measurement]: ±4 µV or ±0.01 div, whichever is greater (Typical6) | ||||||||||||||||||
| A/D conversion resolution | [Voltage measurement] 16 bits (2400 LSB/div) | ||||||||||||||||||
| Temperature coefficient | [Voltage measurement] Zero point: ±(0.01% of 10 div)/°C + 0.05µV/°C (typical6) Gain: ±(0.02% of 10 div)/°C (typical6) |
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| Reference junction compensation accuracy (when the input terminal temperature is balanced) | K, E, J, T, L, U, N: ±1°C R, S, B, W: ±1.5°C Au7Fe: ±1K |
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| Bandwidth limit (digital filter) | Select from OFF, 30 Hz, 8 Hz, and 2 Hz | ||||||||||||||||||
| Input bias current | 20 nA or less The zero point appears to be offset when the input is open due to the effects of bias current on this module. However, this is not a malfunction. Connect the input to the object to be measured. |
1. Value measured under standard operating conditions.
2. Does not include the reference junction temperature compensation accuracy.
3. This module supports Au7Fe with 0.07% metal content with respect to gold.
6. The typical value is a representative or standard value. It is not strictly warranted.
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