Yokogawa STED Specifications

General

Specications

Model STED (Style S)
mV, Temperature and Potentiometer/
Voltage Converter

GS 01B04J01-02E

n GENERAL

The Model STED Converter accepts a mV DC,
thermocouple, RTD or potentiometer signal, converts
and normalizes it, provides isolation, and outputs 1
to 5 V DC and 4 to 20 mA DC signals. Two types

are prepared for the STED converter: xed input
type that is xed to mV DC, thermocouple, RTD

or potentiometer, and universal input type that can
select input type from mV DC, thermocouple or RTD.
Burnout function is provided as standard for each
type.

With the VJ77 Parameter Setting Tool you can do the
following:

· Read/write all parameters at once

· Save read parameters to a le

· Copy parameters to other devices of the same model

and sux code (only with style code R or S).

n STANDARD SPECIFICATIONS

Input Signals

mV DC

Thermocouple
Input
Signal
Type

Minimum
Span

Maximum
Span 100 mV 62 mV

Max. Zero
Elevation

Measuring
Range

Measurement
unit

Input
Resistance

Source
(leadwire)
Resistance

Input
Overload

*1: Thermocouple JIS C 1602、IEC 60584-1 (ITS-90)
TypeK, T, E, J, R, S, B, N, W3

*2: RTD JIS C 1604, IEC 60751 (ITS-90) Pt100
JIS C 1604: 1989, DIN (IPTS-68) Pt100
JIS C 1604: 1989, JPt100
JIS C 1604: 1981, Pt50 JIS C 1604

Input

3 mV 3 mV 10°C

Whichever is the smaller,
within three times the
span or

±50 mV ±25 mV

See table of Measuring Ranges

mV

1 MΩ (Power on)

4 kΩ (Power o󰀨)

Up to 500 Ω

Up to ± 4 V DC – –

Note 1: ASTM E988 Standard: W97Re3-W75Re25

(tungsten97% rhenium3%-tungsten75% rhenium25%)

Note 2:ASTM E988 Standard: W95Re5-W74Re26

(tungsten95% rhenium5%-tungsten74% rhenium26%)

(*1)

Input

shown on the right.

°C, K, °F

(*4)

(PT50/Pt100)

500°C (JPt100)

Within ve

times the span
(temperature)

(*6)

°C, K, °F

No greater than
input span (°C) X

0.4 Ω or 10 Ω per

wire, whichever is
the smaller.
Each leadwire
resistance must
be equal.

(Note 1)

RTD Input

3-wire

Current at

0.2 mA DC

650°C

– –

, W5

(*2)

(*3)

(*6)

(*5)

(Note 2)

Potentiometer

Up to 50
% of total
resistance

50 % or
more of total
resistance

Maximum 10

Ω per wire

Each leadwire
resistance
must be
equal.

Input

3-wire

Voltage at

0.5 V DC

80 Ω

2000 Ω

Ω

*3: When used with BARD-300 or BARD-700, the minimum span

is 30°C (60°C for Pt50). The minimum span for Pt50 is 20°C.
(BARD-300 and BARD-700 are safety barriers of YOKOGAWA.)
*4: When used with BARD-200 or BARD-600, the internal

resistance of BARD (235 Ω ± 15 Ω) is not included.

(BARD-200 and BARD-600 are safety barriers of YOKOGAWA.)
*5: When used with BARD-300 or BARD-700, the internal

resistance of BARD (130 Ω ± 3 Ω) is not included.

(BARD-300 and BARD-700 are safety barriers of YOKOGAWA.)
*6: When specify the option code “/FCAL”.

For universal input type, select one input type from
mV DC, thermocouple or RTD.
Measuring Ranges for Each Input

Type Measuring Ranges

mV –50 to 150 mV

(*1)

TC

RTD

Potentiometer

*7: For STED-7 type only
*8: For STED-4 type only
*9: Total resistance

Type K
Type T
Type J
Type E
Type B
Type R
Type S
Type N
Type W3
Type W5

(*2)

JPt100
Pt50
Pt100 (ITS-90)
Pt100 (IPTS-68)

(*8)

–200 to 1200°C
–200 to 350°C

0 to 750°C

–200 to 800°C

600 to 1700°C

0 to 1600°C

(*7)

(*7)

(*7)

0 to 1600°C

–200 to 1200°C

0 to 2000°C

0 to 2000°C
–200 to 510°C
–200 to 649°C

(*7)

–200 to 850°C
–200 to 660°C

100 to 2000 Ω

Output Signals

Output: 1 to 5 V DC (two outputs)
4 to 20 mA DC (one output)
Load Resistance:

2 kΩ or more (1 to 5 V DC output)
750 Ω or less (4 to 20 mA DC output)

(*9)

GS 01B04J01-02E
©Copyright Sep. 2001(MC)
14th Edition Jan. 2021(YK)

(Thermocouple output change/°C near 0°C)

(Thermocouple output change/°C at measurement temperature)

K =

2

BRAIN Communication Function

Sets each parameter, monitors input/output values, and
adju

sts input/output using a PC (VJ77) or the JHT200

Handy Terminal*.

Burnout Function (UP/DOWN/OFF)

Fixed input type: Selection by the jumper switch.
Universal input type: Selection by the parameter.

Calibration

mV DC Input:
Linearity for mV DC and output
Thermocouple Input/RTD Input:
Linearity for temperature and output
Potentiometer Input:
Linearity for resistance value and output

Adjustment Range for Zero and Span

mV DC Input/Thermocouple Input/RTD Input:
±5% of span
Potentiometer Input:
±10% of span
How to Adjust

Fixed input type:
Adjustment by push switch on the front.
Universal input type:
Adjustment using a PC (VJ77) or the

*: When connecting a PC (VJ77) or the JHT200

JHT200 Handy Terminal*.

Handy Terminal, the adapter for modular-jack
(model E9786WH) is required. When using the
BT200 BRAIN Terminal of YOKOGAWA Electric
Corporation, the communication cable of 5-pin
connector type (model F9182EE) and the adapter
for modular-jack (model E9786WH) are required.

n MOUNTING AND APPEARANCE

Mounting: Indoor rack mounting
Wiring

Signal wiring: ISO M4 size (4mm) screws on

Power and Ground wiring

100 V version: JIS C 8303 two-pole plug with

Cable length: 300 mm
Power supply terminal type (option

220 V version: CEE 7 VII (CENELEC standard)

Power supply terminal type (option

External Dimensions:

Weight: 1.7 kg (including rack-mounting case)

terminal block

earthing contact (IEC A5-15,
UL458)

code /TB)

plug (option code /A2ER)
Cable length: 300 mm

code /A2TB)

(Height x Width x Depth from the
mounting face)
180 x 48 x 300 (mm)

n STANDARD PERFORMANCE

Accuracy: ±0.5% of span

<For Thermocouple>
Note that for thermocouple input, add the reference
junction compensation accuracy to the accuracy
above.
Reference Junction Compensation Accuracy

For temperatures 0°C and over:

For temperatures below 0°C:

Reference junction compensation is not performed
for type B.
<For Thermocouple>
±0.5% of span or ±0.1°C, whichever is greater

Burnout Time: 1 minute or less
Maximum Power Consumption

DC voltage: 24 V DC, 75 mA
AC voltage: 100 V AC, 5.5 VA
220 V AC, 7.0 VA

However, there are the following conditions
for TC and RTD inputs.

±0.5°C (except for Types R and S)
±1°C (for Types R and S)

Multiply accuracy for temperatures
over 0°C by K, where

n POWER SUPPLY AND ISOLATION

Power Supply Rated Voltage:
100 V version:
24-110 VDC
100-120 VAC
220 V version:
135-300 VDC
200-240 VAC
Power Supply Input Voltage: AC/DC both usage

100 V version: DC drive 20 to 130 V, no polarity
AC drive 80 to 138 V, 47 to 63 Hz
220 V version: DC drive 120 to 340 V, no polarity
AC drive 138 to 264 V, 47 to 63 Hz

Insulation Resistance

Between I/O terminals and Ground:

100 MΩ/ 500 V DC

Between Power and Ground:

100 MΩ/500 V DC

Dielectric Strength

Between I/O terminals and Ground:
500 V AC for 1 minute.
Between Power and Ground:
1000 V AC for 1 minute (100 V version)
1500 V AC for 1 minute (220 V version)

, -10 %, +10 %, 100 mA

, -10 %, +10 %, 50/60 Hz, 8.0 VA

, -10 %, +10 %, 20 mA

, -10 %, +10 %, 50/60 Hz, 10.0 VA

All Rights Reserved. Copyright © 2001, Yokogawa Electric Corporation

GS 01B04J01-02E

Jan.12, 2021-00

3

n NORMAL OPERATING CONDITIONS

Ambient Temperature: 0 to 50°C
Ambient Humidity: 5 to 90% relative humidity

(non-condensing)

Operating environment: Area free of hydrogen sulde

gas and other corrosive
gases and dust and where
the device is not exposed to
sea breeze or direct sunlight.

Continuous vibration: (at 5 to 9 Hz) Half amplitude of

1.5 mm or less
(at 9 to 150 Hz) 4.9m/s

2

or less,
1 oct/min for 90 minutes each
in the three axis directions

Impact: 49 m/s

2

or less, 11 ms, 3 axes, 6 directions, 3

times each
Installation altitude: 2,000 m or less above sea level
Warm-up time: 15 minutes or more after the power is

turned on

n TERMINAL CONNECTIONS

Terminal arrangement

OUT

K

J

HFDCB

A

Terminal

Designation

A +
B ­C +
D ­F +
H ­J
K

Do not connect to the output terminal when the terminal is not in use.

Output 1 (1 to 5 V DC)

Output 3 (4 to 20 mA DC)

Output 2 (1 to 5 V DC)

n TRANSPORT AND STORAGE

CONDITIONS

Temperature: -25 to 70°C
Temperature change rate: 20°C per hour or less
Humidity: 5 to 95%RH (no condensation)

n OPTIONS

/NHR: Without rack case (internal unit only)
/FBP: Power supply fuse bypass
/LOCK: Power supply plug with lock
/WSW: With spring washer
/REK: Mount to same line with EK series rack
/TB: With power supply terminal
/A2TB: 220V version with power supply terminal
/A2ER: 220V version with power supply plug
/FCAL: Fahrenheit range

Description

Terminal

Designation

1 +

3

5

1

2

4

6

8

7

IN

2 - 2 2

3 3 3

4 4 4

5 5 5

6

7 7 7

8 8 8

For STED-7 type, select one input from mV DC, thermocouple or RTD.

Description

STED-1 and STED-2 STED-3 STED-4

mV DC input or
thermo- couple
input

(RJC block
installation terminal)

Terminal

Designation

Description

1 1

6 6

A

B

B
RTD

input

Terminal

Designation

Description

0%

CENTER

100%
Potentiometer
input

All Rights Reserved. Copyright © 2001, Yokogawa Electric Corporation

GS 01B04J01-02E

Jan.12, 2021-00

n EXTERNAL DIMENSIONS

Power supply plug type

4

180

Cable length: 300 mm

No zero and
span adjustment
push switches
for STED-7 type.

48

Trigonometry
Unit: mm
General tolerance = ±(value of tolerance class IT18 based on JIS B 0401-2016) / 2

Power supply terminal type(option /TB or /A2TB)

136

22

30052

F01.ai

52

180

No zero and
span adjustment
push switches
for STED-7 type.

48

Power supply
terminal block

L N

Trigonometry
Unit: mm
General tolerance = ±(value of tolerance class IT18 based on JIS B 0401-2016) / 2

All Rights Reserved. Copyright © 2001, Yokogawa Electric Corporation

71 300

Power and Ground Terminal connection
(Connection screw: M4)

Symbol

Description
+

L

-

N

Power supply

Ground

GS 01B04J01-02E

136

22

F02.ai

Jan.12, 2021-00

Power supply terminal type(option /REK)

5

200

2-ø7

190

5

52

No zero and
span adjustment
push switches
for STED-7 type.

32 136

48

Power supply
terminal block

L N

71 300

Power and Ground Terminal connection
(Connection screw: M4)

Symbol

Description
+

L

-

N

Power supply

Ground

Trigonometry
Unit: mm
General tolerance = ±(value of tolerance class IT18 based on JIS B 0401-2016) / 2

F03.ai

All Rights Reserved. Copyright © 2001, Yokogawa Electric Corporation

GS 01B04J01-02E

Jan.12, 2021-00

n MODEL AND SUFFIX CODES

Model Su󰀩x Codes Option Codes Descriptions

STED mV, Temperature and Potentiometer/Voltage Converter

Input
Signal

Number of Inputs 1 1 input
Su󰀩x Code 0 Always 0

Auxiliary Codes
STED-110: “-MV”
STED-210: “-TK” to “-TS”
STED-310: “-PA” to “-PD”
STED-410: “-RS”
STED-710: “-UN”

Style Code *S Style S

Option Codes

-1

-2

-3

-4

-7

(*1) (*2) (*3)

-MV

-TK

-TT

-TJ

-TE

-TB

-TR

-TS

-PA

-PB

-PD

-RS

-UN

/NHR
/FBP
/LOCK
/WSW
/REK
/TB
/A2TB
/A2ER
/FCAL

mV DC input
Thermocouple input
RTD input
Potentiometer input
Universal input (mV, TC, RTD input)

mV DC
Type K (ITS90, JIS C1602)
Type T (ITS90, JIS C1602)
Type J (ITS90, JIS C1602)
Type E (ITS90, JIS C1602)
Type B (ITS90, JIS C1602)
Type R (ITS90, JIS C1602)
Type S (ITS90, JIS C1602)
JPt100 (JIS’89)
Pt50 (JIS’81)
Pt100 (ITS-90, JIS C1604)
Potentiometer
Universal input (mV, TC, RTD input)

Without rack case
Power supply fuse bypass
Power supply plug with lock
With spring washer
Mount to same line with EK series rack
With power supply terminal
220V version with power supply terminal
220V version with power supply plug
Fahrenheit range

6

6

*1: /LOCK, /REK, /TB, /A2TB, and /A2ER cannot be specied together.
*2: /FBP, /A2TB, and /A2ER cannot be specied together.

*3: When setting the temperature unit with “deg F”, specify the option code /FCAL.

n ORDERING INSTRUCTIONS

Specify the following when ordering:

1. Model, su󰀩x code and auxiliary code, and optional su󰀩x code, if necessary.

2. Specication of input: Mandatory specication

(1) Fixed-to-mV DC input type

(2) Fixed-to-Thermocouple input type (except for Types N, W3 and W5)

(3) Fixed-to-RTD input type

(4) Fixed-to-Potentiometer input type

(5) Universal input type

3. Burnout selection: Optional specication

Measuring range and unit e.g. 0 to 10 mV DC

Measuring range and unit e.g. 0 to 300 °C

Measuring range and unit e.g. 0 to 300 °C

• Total resistance and unit (R

• Resistance at 0% point and unit (R

• Resistance at 100% point and unit (R
e.g. Resistance of Potentiometer R

T Ω)

0 Ω)

100 Ω)

T = 500 Ω, R0 = 50 Ω, R100 = 450 Ω

• Input type (Select input type from mV DC, thermocouple or RTD.)

• When mV DC input is selected:
Measuring range and unit e.g. 0 to 10 mV DC

• When thermocouple input is selected (see table of Measuring Ranges on page 1):
Thermocouple type e.g. Type K
Measuring range and unit e.g. 0 to 300 °C

• When RTD input is seleccted (see table of Measuring Ranges on page 1):
RTD type e.g. Pt100
Measuring range and unit e.g. 0 to 100 °C

Select from UP, DOWN or OFF.

If not specied: OFF

All Rights Reserved. Copyright © 2001, Yokogawa Electric Corporation

Subject to change without notice.

GS 01B04J01-02E

Jan.12, 2021-00