YOKOGAWA DL850E User Manual

6-30
IM DL850E-03EN
Temperature, High Precision Voltage Isolation Module (701265)
Item Specifications
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)
Effective measurement range [Voltage measurement] 20 div (display range: 10 div)
Number of input channels 2
Input coupling TC, DC, and GND
TC: Temperature (thermocouple) measurement
DC: Voltage measurement (DC coupling)
Data update rate 500 Hz
Input format Isolated unbalanced
Measurement range/accuracy
1
For the thermocouple
standards, see the 701261
specifications.
[Voltage measurement] Voltage sensitivity: 100 μV/div to 10 V/div (1-2-5 steps)
Voltage accuracy: ±(0.08% of 10 div + 2 µV)
[Temperature measurement]
2
Type Measurement Range Accuracy
K
E
J
T
L
U
N
−200 to 1300°C
−200 to 800°C
−200 to 1100°C
−200 to 400°C
−200 to 900°C
−200 to 400°C
0 to 1300°C
±(0.1% of reading + 1.5°C)
Except ±(0.2% of reading + 1.5°C) for −200°C to 0°C
R
S
0 to 1700°C
0 to 1700°C
±(0.1% of reading + 3°C)
Except, 0 to 200°C: ±8°C
200 to 800°C: ±5°C
B 0 to 1800°C ±(0.1% of reading + 2°C)
Except, 400 to 700°C: ±8°C
Effective range is 400 to 1800°C
W 0 to 2300°C ±(0.1% of reading + 3°C)
Au7Fe
3
0 to 300K 0 to 50K: ±4K
50 to 300K: ±2.5K
Frequency characteristics
1
(−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 voltage
4
(at a frequency of 1 kHz or less)
Both temperature and voltage input: 42 V (DC+ACpeak)
Maximum allowable common
mode voltage
5
(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 (typical value
6
)
[Temperature measurement] 120 dB or more (50/60 Hz, with 2-Hz filter ON, signal source
resistance of 500 Ω or less) (typical value
6
)
Residual noise level
(Input section shorted)
[Voltage measurement] ±4 µV or ±0.01 div, whichever is greater (typical value
6
)
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) (typical value
6
)
Gain: ±(0.02% of 10 div)/°C (typical value
6
)
Reference junction compensation
accuracy (when the input terminal
temperature is balanced)
K, E, J, T, L, U, N:
R, S, B, W:
Au7Fe:
±1°C
±1.5°C
±1K
Bandwidth limit (digital filter) Select from Full, 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.
6.13 Module Specifications

YOKOGAWA DL850E Specifications

General

Brand	YOKOGAWA
Model	DL850E
Category	Test Equipment
Language	English