PART 4

SPECIFICATIONS

 

RTD Input (ITS 68)

Accuracy

100/500/1000 Ω Pt sensor,

±0.5°C temp; 0.03% reading process

2-, 3- or 4-wire;

Resolution

0.00385 or 0.00392 curve

Voltage Input

1°/0.1°; 10 µV process

Temperature Stability

0 to 100 mV, 0 to 1 V, 0 to 10 Vdc

Input Impedance

1) RTD: 0.04°C/°C

2) TC @ 25°C (77°F): 0.05°C/°C

10 MΩ for 100 mV

Cold Junction Compensation

1 MΩ for 1 or 10 Vdc

3) Process: 50 ppm/°C

Current Input

 

NMRR 60 dB

0 to 20 mA (5 ohm load)

CMRR 120 dB

Configuration

A/D Conversion

Single-ended

Polarity

Dual slope

Reading Rate

Unipolar

Step Response

3 samples per second

Digital Filter

0.7 sec for 99.9%

Decimal Selection

Programmable

 

None, 0.1 for temperature

Remote Programmer Display

None, 0.1, 0.01 or 0.001 for process

(optional)

Setpoint Adjustment

4-digit, 9-segment LED, 21mm (0.83")

red, green and amber programmable

-1999 to +9999 counts

colors for process variable, set point

 

and temperature units

Span Adjustment

Warm up to Rated Accuracy

0.001 to 9999 counts

 

30 min.

Offset Adjustment

INPUT

-1999 to +9999

 

Input Types

 

Thermocouple, RTD, Analog Voltage,

 

Analog Current

 

Thermocouple Type (ITS90)

 

J, K, T, E, R, S, B, C, N, L

 

Thermocouple Lead Resistance

 

100 ohm max

 

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Image 58
a/d/s/ iSeries manual Part Specifications