Yokogawa Data Acquisition with PID Control CX2000 User Manual

Page 368

14-20

IM 04L31A01-01E

Reference junction compensation accuracy:

Type R, S, B, W, PR40-20, W3Re/W25Re: ±1.0 °C
Type K, J, E, T, N, L, U
PLATINEL: ±0.5 °C
(only when measuring 0 °C or above)

Maximum input voltage: Voltage range less than or equal to 2 VDC and thermocouples:

±10 VDC (continuous)
6 V and higher voltage ranges: ±60 VDC (continuous)

Input resistance:

Voltage range less than or equal to 2 VDC and thermocouples:
10 MΩ or more
6 V and higher voltage ranges: Approx. 1 MΩ

Input source resistance: Volt, TC:

2 kΩ or less

RTD input: 10 Ω or less per wire (the resistance of all three

wires must be equal).

Input bias current:

10 nA or less

Common mode rejection ratio:

120 dB (50/60 Hz ± 0.1%, 500 Ω unbalanced, between the
minus terminal and ground)

Normal mode rejection ratio:

40 dB (50/60 Hz ± 0.1%)

Effects of Operating Conditions

Ambient temperature:

With temperature variation of 10° C:

±(0.1% of rdg + 1 digit) or less for Volt and TC ranges
* Excluding the error of reference junction compensation

±(0.1% of rdg + 2 digits) or less for RTD ranges

Power supply fluctuation: With variation within 90 to 132 V and 180 to 250 VAC (50/60 Hz):

1 digit or less

With variation of ±2 Hz from rated power frequency (at 100 VAC):

±(0.1% of rdg + 1 digit) or less

Magnetic field:

AC (50/60 Hz) and DC 400 A/m fields:

±(0.1% of rdg + 10 digits) or less

Input source resistance: With variation of +1 kΩ :

(1)

Volt range
Ranges of 2 VDC or less:

Within ±10 µ V

Ranges of 6 VDC or greater: ±0.1% of rdg or less

(2)

TC range
Within ±10 µ V (±100 µ V when burnout is specified)

(3)

RTD range (Pt100)
With variation of 10 Ω per wire (when the resistance of all
three wires are equal):

±(0.1% of rdg + 1 digit)

With maximum difference of 40 mΩ between wires:

Approx. 0.1 ° C

Other Specifications

Clock:

With a calendar function

Daylight savings:

Can be enabled
The time can be adjusted by a remote contact.

Accuracy of clock:

±100 ppm, excluding the delay that occurs at power-up (1 s or less)

Keylock function:

Can be turned ON/OFF. Password can be specified.

14.8 General Specifications