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4

Specifications

at

Thermocouple Accuracy

TC Type

Error (°C)

Temperature

Coefficient

(°C/°C)

Accessory

Error

(°C)

°C

10 Hz

50 Hz

60 Hz

J

-100

0.53

0.61

0.74

0.02

0.25

0

0.42

0.49

0.59

760

0.42

0.47

0.55

K

-100

0.60

0.72

0.89

0.03

0.27

0

0.45

0.54

0.67

1,000

0.60

0.69

0.81

1,372

0.74

0.84

0.99

N

-100

0.68

0.84

1.08

0.03

0.26

0

0.54

0.67

0.86

400

0.42

0.51

0.65

1,300

0.57

0.66

0.80

E

-100

0.55

0.62

0.74

0.02

0.28

0

0.41

0.46

0.55

500

0.35

0.40

0.46

1,000

0.46

0.50

0.57

T

-150

0.81

0.96

1.17

0.03

0.36

0

0.46

0.55

0.68

400

0.33

0.39

0.47

R

250

0.82

1.16

1.65

0.06

0.12

1,000

0.72

0.99

1.37

1,767

0.91

1.19

1.60

S

250

0.91

1.28

1.83

0.07

0.13

1,000

0.77

1.05

1.47

1,767

0.96

1.27

1.72

B

600

1.08

1.64

2.47

0.11

0.00

1,000

0.76

1.14

1.69

1,820

0.74

1.05

1.50

RTD Accuracy

°C

Error (°C) (100 Ω RTD)

Temperature

Coefficient

(°C/°C)

10 Hz

50 Hz

60 Hz

I

EX1

1

I

EX0

2

I

EX1

1

I

EX0

2

I

EX1

1

I

EX0

2

-200

0.05

1.00

0.06

1.33

0.07

1.81

0.02

0

0.12

1.14

0.13

1.49

0.14

2.00

–

100

0.16

1.22

0.17

1.58

0.18

2.10

–

300

0.23

1.38

0.24

1.76

0.26

2.32

–

600

0.36

1.66

0.37

2.08

0.39

2.69

–

1

Thermistor Accuracy

Temperature ......................................... 0 to 50 °C

Error ...................................................... 0.03 °C

Temperature coefficient ....................... 0.001 °C/°C

Resistance Accuracy and DC Voltage Accuracy

For detailed resistance accuracy and DC voltage accuracy specifications,

Analog Input

Input characteristics

Number of channels ......................... 16 differential or 14 temperature

Digits................................................. 5½

Type of ADC...................................... Delta-sigma

ADC resolution.................................. 24 bits, no missing codes

Calibration cycle............................... 1 year

Mode

Reading Rate (Readings/s)

Power Line Noise Rejection (Hz)

Single channel

10

50, 60, 400

50

50, 400

60

60

scanning

50, 60, 400

50, 400

60

1

Resistance ranges >50 k

2

Total number of readings per second (for single-channel speed, divide by the

number of channels acquired)

Reading Rates

Input coupling........................................ DC

Maximum working voltage (signal + common mode)

Range >2.5 V..................................... Each input should remain

within ±15 V of ground

Range ≤2.5 V .................................... Each input should remain

within ±2.5 V of ground

Overvoltage protection

(ACH<0..8/15>, IEX± <0..1>)............. ±42 V powered on, ±17 V powered off

Data transfers ....................................... Interrupts, programmed I/O

Warm-up time ....................................... 30 minutes

Amplifier Characteristics

Input impedance

Normal powered on.......................... >1 GΩ in parallel with 0.39 µF

Powered off ...................................... 10 kΩ

Overload............................................ 10 kΩ

High-Precision Data Acquisition