OUTLINE

Signal Conditioner Cards, which interface to the

process, are installed in Signal Conditioner Nests. The signal conditioner cards can convert the I/O

signals, isolate the I/O signals, and provide an isolated

power supply from a built-in distributor.

For example, the measuring ranges of temperature

and mV input signal conditioner cards can be changed

by a portable BRAIN terminal. Some cards have

communication functions and supply power to BRAIN Series transmitters (BRAIN UNI∆, BRAIN ADMAG and

BRAIN YEWFLO).

You can select from 16 types of cards according to the

kind of field signal.

Standards Specifications (1)

Name                             mV input card   Thermocouple input Resistance thermometer    Potentiometer

card                        sensor input card              Input card

Model                                    EM1                          ET5                                  ER5                                ES1

RTD (3-wire, Measuring

current: 1mA)

TC JIS C1602:1995,   • JIS C1604:1997, 

Input signal                                               DC voltage            IEC 584:1995,          IEC 751:1995 (ITS-90)       Potentiometer,

-50 to +150 mV      ANSI (ITS-90) Type     Pt100 • JIS:1989, DIN                   3-wire

K.                                                     T, J, E, B, R, S, N    (IPTS-68) Pt100

•  JIS:1989 JPt100

•  JIS:1981 Pt50

10 to 63 mV                                                           Total resistance:

Span                  10 to100 mV DC       (Thermoelectric              10 to 650 _C (*5)             100 to 2000 Ω

Measuring range                                                                        conversion)                                                       Span: 80 to 2000 Ω

Zero elevation                                   Smaller of 3 times           Smaller of 3 times        Max. 5 times span    Within 50 % of total

span and _50 mV     span and _25 mV                                                         resistance

Measuring range change                   Can be changed by BRAIN terminal

Input resistance                                       1 MΩ (10 kΩ             1 MΩ (10 kΩ                                               –

when power off)       when power off)

External input resistance                                           500 Ω max.                               Max. 150 Ω/wire (*1)         Max. 10 Ω/wire

Allowable input voltage                                            -0.5 to 4 V DC                                           –                                     –

Input linearization                                         None                     Provided                          Provided                          None

Output signal                                       1 to 5 V DC, 2 outputs (output resistance: 1 Ω max., load resistance: 2 kΩ min.)

Burnout                                                 Selectable (upscale, downscale) or off (can be changed by BRAIN), scaleout time less than 

60 sec.

Signal isolation                                   Between input and output signals, input signal and power input Between output signal and

power input

Mounting method                                Mounted in special nest (signals and power supply are connected via backboard and connector)

Wiring                                                  External wiring: M4 screw terminals for I/O in special nest Wiring to I/O cards: By special cable

using connector

External dimensions                           73 (Width)x24 (Height)x115 (Depth) mm (including knob)

Weight                                                  70 g

Accuracy rating (*4)                                Within _0.1 %   Within larger of _0.1 %                                                 Within larger of _0.1 % of      Within _0.1 %

of span          of span and _20 _V of         span and 0.2 _C                  of span

input conversion

Reference junction                                          –                    Type R, S: _2 _C                         –                                     –

compensation error                                                           Other types: _1 _C (*3)

Isolation resistance                            Between input and output signals, input signal and power input: at 500 V DC,100 MΩ Between

output signal and power input: at 500 V DC,100 MΩ

Withstanding voltage                         Between input and output signals, input signal and power input: 1500 V AC for 1 minute

Between output signal and power input: 500 V AC for 1 minute

Power supply voltage                         24 V DC _10 %

Max. current consumption (24 V DC)         60 mA                       60 mA                               60 mA                             60 mA

Ambient conditions                             0 to 50 _C /5 to 95 % RH (non-condensing)

Effect of ambient temperature change  Max. _0.2 % of span for 10 _C change

Effect of power supply voltage change  Max. _0.1 % of span for change of 24 V DC _10 %

Reference Junction

Accessory                                                         –               Compensation Sensor                   –                                     –

(*6)

*1:  Influence of external input resistance:  _0.1 _C/10 Ω (3 lines should be in balance)

*2:  Span must be at least 50 % of total resistance.

*3:  For Type B, there is no reference junction compensation.

*4:  Accuracy rating of #2 output:  _0.2 % (deviation from #1 output).

*5:  For JPt100 JIS:1989, Span is 10 to 500 _C.

*6:   Connected it to B and C terminals of signal conditioner.