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.
|Standard operating conditions||Temperature: 23 ±5°C
Humidity: 20% to 80% RH
After a 30-minute warm-up and after calibration
|Function||Temperature (thermocouple) or voltage measurement (switchable)|
|Number of input channels||2|
|Input coupling||TC, DC, and GND
|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)
(–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
|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
|–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)
|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)
|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
|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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