EKO MS-80 User manual

EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80 - Instruction Manual Ver. 3
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1. Index
1. Index 1
2. Important User Information 2
2-1. Contact Information 2
2-2. Warranty and Liability 2
2-3. About Instruction Manual 3
2-4. Environment 3
2-5. ISO/IEC 17025 4
2-6. CE Declaration 5
3. Safety Information 6
3-1. WARNING/CAUTION 6
4. Introduction 8
4-1. About the Pyranometer Series 9
4-2. Package Contents 12
5. Getting Started 13
5-1. Parts Name and Descriptions 13
5-2. Setup 15
5-3. Measuring Solar Irradiance 20
6. Maintenance & Troubleshooting 22
6-1. Maintenance 22
6-2. Calibration and Measurement Uncertainty 23
6-3. Troubleshooting 24
7. Specifications 25
7-1. Specifications 25
7-2. Dimensions 27
7-3. Output Cables 29
7-4. Accessories List 29
APPENDIX 30
A-1. Radiometric Terms 30
A-2. Pyranometer Characteristics 31
A-3. Configurator Software (MS-80A, MS-80M) 32
A-4. Communication Specifications (MS-80M) 44
A-5. Recalibration (MS-80A, MS-80M) 49
A-6. Temperature Sensor (10k ΩNT C M S -80) 50
A-7. Tem perat ure Conv ersi on Ta ble ( 440 31, 10k ΩNTC) 51

EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80 - Instruction Manual Ver. 3
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2. Important User Information
Thank you for using EKO Products
Make sure to read this instruction manual thoroughly and to understand the contents before starting to operate the
instrument. Keep this manual at safe and handy place for whenever it is needed.
For any questions, please contact us at one of the EKO offices given below:
2-1. Contact Information
EKO INSTRUMENTS CO., LTD.
Asia, Oceania Region
www.eko.co.jp
[email protected]
EKO INSTRUMENTS Co., Ltd.
1-21-8, Hatagaya, Shibuya-ku
Tokyo, 151-0072 Japan
Tel: [phone]
Fax: [phone]
Europe, Middle East, Africa, South America Region
www.eko-eu.com
[email protected]
EKO INSTRUMENTS Europe B.V.
Lulofsstraat 55, Unit 28,
2521 AL, Den Haag, The Netherlands
Tel: [phone]
Fax: [phone]
North America Region
www.eko-usa.com
[email protected]
EKO INSTRUMENTS USA Inc.
111 North Market Street, Suite 300
San Jose, CA 95113 USA
Tel: [phone]
Fax: [phone]
2-2. Warranty and Liability
For warranty terms and conditions, contact EKO or your distributor for further details.
EKO guarantees that the product delivered to customer has been verified, checked and tested to ensure that
the product meets the appropriate specifications. The product warranty is valid only if the product has been
installed and used according to the directives provided in this instruction manual.
In case of any manufacturing defect, the product will be repaired or replaced under warranty. However, the
warranty does not apply if:
Any modification or repair was done by any person or organization other than EKO service
personnel.
The damage or defect is caused by not respecting the instructions of use as given on the product
brochure or the instruction manual.

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2-3. About Instruction Manual
Copy Rights Reserved by EKO INSTRUMENTS CO., LTD. Making copies of whole or parts of this
document without permission from EKO is prohibited.
This manual was issued: 2019/05/20
Version Number: 3
2-4. Environment
1. WEEE Directive 2002/96/EC
(Waste Electrical and Electronic Equipment)
This product is not subjected to WEEE Directive 2002/96/EC however it should not be mixed with general
household waste. For proper treatment, recovery and recycling, please take this product(s) to the designated
collection points.
Disposing of this product correctly will help save valuable resources and prevent any potential negative
effects on human health and the environment, which could otherwise arise from inappropriate waste
handling.
2. RoHS Directive 2002/95/EC
EKO Instruments has completed a comprehensive evaluation of its product range to ensure compliance with
RoHS Directive 2002/95/EC regarding maximum concentration values for substances. As a result all products
are manufactured using raw materials that do not contain any of the restricted substances referred to in the
RoHS Directive 2002/95/EC at concentration levels in excess of those permitted under the RoHS Directive
2002/95/EC, or up to levels allowed in excess of these concentrations by the Annex to the RoHS Directive
2002/95/EC.

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2-5. ISO/IEC 17025
EKO Instruments Co. Ltd. calibration laboratory is accredited by Perry Johnson Laboratory Accreditation, Inc.
(PJLA) to perform pyranometer and pyrheliometer calibrations in accordance with the requirements of
ISO/IEC17025, which are relevant to calibration and testing.
EKO is a unique manufacturer who can offer calibration service for pyranometers and pyrheliometers in-house.
Based on the applied calibration methods EKO provides the best quality solar sensor calibrations compliant to the
international standards defined by ISO/IEC17025 / 9847 (Indoor method) and ISO9059 (Outdoor method)
(Certification: L13-94-R2 / www.pjlabs.com)
ISO/IEC17025 provides a globally accepted basis for laboratory accreditation that specifies the management and
technical requirements. With calibrations performed at the EKO Instruments laboratory we enable our customers
to:
・Clearly identify the applied calibration methods and precision
・Be traceable to the World Radiation Reference (WRR) through defined industrial standards:
ISO9846 Calibration of a pyranometer using a pyrheliometer
ISO9847 Calibration of field pyranometer by comparison to a reference pyranometer
ISO9059 Calibration of field pyrheliometers by comparison to a reference pyrheliometer
・Obtain repeatable and reliable calibration test results through consistent operations
Our clients will obtain a highly reliable data by using an ISO/IEC17025 calibrated sensor. Our Accredited lab is
regularly re-examined to ensure that they maintain their standards of technical expertise.

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2-6. CE Declaration
DECLARATION OF CONFORMITY
We: EKO INSTRUMENTS CO., LTD
1-21-8 Hatagaya Shibuya-ku,
Tokyo 151-0072 JAPAN
Declare under our sole responsibility that the product:
Product Name: Pyranometer
Model No.: MS-80, MS-80A, MS-80M, MS-80U
To which this declaration relates is in conformity with the following
harmonized standards of other normative documents:
Harmonized standards:
EN 61326-1:2006 Class A (Emission)
EN 61326-1:2006 (Immunity)
Following the provisions of the directive:
EMC-directive: 89/336/EEC
Amendment to the above directive: 93/68/EEC
Date: Dec. 1, 2015
Position of Authorized Signatory: Deputy General Manager of QualityAssurance Dept.
Name of Authorized Signatory: Shuji Yoshida
Signature of Authorized Signatory:

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3. Safety Information
EKO Products are designed and manufactured with consideration for safety; however, please make
sure to read and understand this instruction manual thoroughly to be able to operate the instrument
safely in the correct manner.
WARNING
CAUTION
Attention to user; pay attention to the instructions given on the
instruction manual with this sign.
HIGH
VOLTAGE
WARNING
High voltage is used; pay special attention to instructions given on
this instruction manual with this sign to prevent electric leakage
and/or electric shocks.
3-1. WARNING/CAUTION
1. Setup
The installation base or mast should have enough load capacity for the instrument to be mounted.
Fix the pyranometer securely to the base or mast with bolts and nuts; otherwise, the instrument
may drop due to gale or earthquake, which may lead to unexpected accidents.
Make sure the instrument and the cables are installed in a location where they will not get soaked.
When using this instrument by connecting to a measuring instrument, make sure to connect the
shield cable to either the signal ground terminal on the measuring instrument side or GND (the
reference potential on the single end input side). Noise may be included in the measurement
data.
Although this product is tested to meet EMC Directive compliance requirements, it may not fully
satisfy its primary specification/performance when using this product near following locations
where strong electromagnetic wave is generated. Please pay attention to the installation
environment.
Outdoor: High voltage power line, power receiver/distribution facility, etc.
Indoor: Large-size chiller, large rotation device, microwave, etc.
Do not use this product in environment where corrosive gas, such as ammonia and sulfurous acid
gas, are generated. It may cause malfunction.
Do not install in area that cause salt damages. It may cause malfunction by paint peeling off or
corrosion. When installing in area with risk of salt damages, make sure to take following
measures: 1. Wrap the connector with self-fusing tape, 2. Change the fixing screw to bolt screw
made of aluminum, 3. Run the cables in resin pipe or metal pipe treated with salt-resistant paint
such as molten zinc plating, 4. Periodically clean.
Do not use this instrument in vacuum environment.
If the cable and main unit are in risk for getting damaged by birds and small animals, protect the
cable and the main unit by using: 1. Reflective tape, 2. Repellent, 3. Cable duct, 4. Installing
bird-spike

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2. Handling
Be careful with glass dome when handling instruments. Strong impact to this part may damage the
glass and may cause injuries by broken glass parts.
When carrying any MS-80 model with the sunscreen attached, always hold the instrument from the
bottom. Holding only the sunscreen part may lead to dropping the sensor as it comes off from the
sunscreen.
3. Power Supply (MS-80A/MS-80M)
Make sure to ground the grounding cable on the power supply cable. When grounding is
insufficient, it may cause not only measurement error due to noise, but also cause electric shock
and leakage accidents.
Check the voltage and types (AC or DC) of specified power supply before connecting this
instrument. When improper power supply is connected, it may cause malfunction and/or accident.
Use this instrument with 0.5A fuse connected to the power supply line in series. Without
connecting the fuse, it has risks of generating heat and fire due to large-current flowing by the
power supply when internal damage on the electronics will occurs.

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4. Introduction
EKO’s new generation sensor, called MS-80 broke with the rules of traditional pyranometer architecture.
The innovative design was inspired by the combination of latest technologies and state-of-the-art
thermopile sensor, enabling a breakthrough in unprecedented low zero-offset behaviour and fast
sensor response.
The compact sensor with single dome is immune to offsets and integrates all value added functions
such as a ventilator, heater and different industrial interfaces.
MS-80 unique properties:
Long term stability Compared to our conventional pyranometer, the long term stability is further
enhanced with improved airtightness and the sensor architecture with low sensitivity degradation.
Fast detector response The MS-80 is based on the latest thermopile technology, and realized with a
response time of <0.5sec @95% or <1sec @99%. Such response time is suitable for measuring solar
irradiance which changes momentarily.
Excellent temperature coefficient MS-80 has excellent temperature response in wide temperature
range compared to our conventional pyranometer, and it provides linear output against solar irradiance.
Lowest zero off-set Compared to the conventional pyranometers using double-dome, MS-80 has the
lowest zero off-set effects. The combination of the isolated thermopile detector architecture and optics
keep the sensor in thermal balance within variable atmospheric conditions.
Warranty and re-calibration The MS-80 has 5 years warranty and 5 years recommended re-calibration period.
ISO 9060, an international industry standard, was revised to the 2nd edition in 2018. Along with this revision, the
Pyranometers are classified in order of the highest grade "Class A" "Class B" "Class C" and for Pyranometers that
meet the response time and spectral selectivity criteria, "fast response pyranometer" and "spectrally flat
radiometer" are classified as a sub-category.

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4-1. About the Pyranometer Series
EKO offers four different MS-80 pyranometer models each with different features. With this wide range of
sensors, EKO pyranometers can meet all possible application requirements, ranging from PV module
efficiency measurements to climatology research and material durability testing.
The MS-80 sensor gives excellent durability. It is airtight and can be deployed with little maintenance since
the desiccant is incorporated inside.
Solar sensors are applied outdoors, hence the detector black surface, optical components and sensor
mechanics are constantly exposed to solar radiation, temperature and pressure differences. UV radiation
known as harmful radiation to materials can change the chemical properties of substances irreversibly. In
case of the MS-80 the detector it is totally isolated below the sensor optics surface, which is sealed, and can’t
be affected by a high dose of UV, moisture or pressure differences.
During production and inspection, the directional response and temperature dependency are measured and
validated through a measurement report that comes with each sensor. Besides, EKO provides a unique
calibration service for pyranometers compliant to the international standards defined by ISO/IEC17025 / 9847
(indoor method). When an ISO/ IEC17025 calibrated sensor is purchased, EKO offers sensor at nearly
constant calibration uncertainty. The Accredited lab is regularly re-examined to ensure that they maintain
their standards of technical expertise.
In case of MS-80, MS-80A and MS-80M, With combination of optional MV-01 (ventilator + heater unit),
reduces the dew condensation and accumulation of dusts and snow on glass dome by continuously blowing
the air.
In the following paragraphs, the four instrument types are described individually.
1. MS-80
The analogue MS-80 pyranometer can be used as a reference sensor to measure the global broad-band
solar radiation with a high accuracy. With excellent temperature response and non-linearity characteristics, it
provides optimal performance throughout the year and day.
Category of ISO9060: 2018
“Fast response and spectrally flat pyranometer of class A”
Key features:
Fast Response time (<0.5s@95%, <1s@99%)
Excellent temperature response over a wide temperature range (-20 to +50℃)
Low offset characteristics

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2. MS-80A
The MS-80A is a MS-80 with built in 4-20mA converter which can transfer data in long distance. Due to the
ultralow temperature dependency and non-linearity characteristics, the converter guarantees an optimal
sensor performance throughout year and day. For easy conversion, the MS-80 output by the integrated
converter is set to 4-20mA | 0 - 1600 W/m2.
With the optional USB controller and EKO Sense software (Multiple languages), the converter settings can be
freely changed.
Category of ISO9060: 2018
“Spectrally flat pyranometer of class A”
Key features:
Fast Response time (<1.5s@95%, <2s@99%)
Excellent temperature response over a wide temperature range (-20 to +50℃)
Measurements at long distances (Recommended maximum transmission range 1.2km when using
DC24V, AWG28 cable)
3. MS-80M
The MS-80M is a MS-80 with built in MODBUS RTU 485 converter which can be connected in series with
devices using the same communication protocol. It is also compatible to the industrial photovoltaic system
power conditioner input. Due to the excellent temperature dependency and non-linearity characteristics, the
converter guarantees an optimal sensor performance, throughout year. MS-80M can be used with
instruments connected with EKO Modbus Signal Converter MC-20 and MS-80M up to 100 units through BUS
connection. The digital signal from MS-80M can be converted to irradiance 0 - 1600 W/m2(default setting).
With the optional USB controller and EKO Sense software (Multiple languages) the converter settings can
be freely changed.
Category of ISO9060: 2018
“Spectrally flat pyranometer of class A”
Key features:
Fast Response time (<1s@95%, <1s@99%)
Excellent temperature response over a wide temperature range (-20 to +50℃)
Measurements at long distances (transmission distance 1.2km, theoretical value stated on EIA-485.

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4. MS-80U
MS-80U is the most compact and light weight Class A pyranometer on the market. With a total weight of 0.2
kg and low body height the sensor can be easily used for drone and UAV applications.
Category of ISO9060: 2018
“Fast response and spectrally flat pyranometer of class A”
Key features:
Compact and light weight
Fast Response time (<0.5s@95%, <1s@99%)
Excellent temperature response over a wide temperature range (-20 to +50℃)
Low offset characteristics

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4-2. Package Contents
Check the package contents first; if any missing parts or any damage is noticed, please contact EKO
immediately.
Table 4-1. Package Contents
Contents
MS-80 / MS-80A / MS-80M
MS-80U
Pyranometer
○
○
Output Cable*
○
○
Sunscreen
○
-
Instruction Manual
Not included in the package
(Please download from EKO Website)
Inspection Report
○
Quick Start Guide
○
-
Fixing Bolts
( M5 ) x2
(Bolt Length: 75mm )
Washers
( M5 ) x4
Nuts
( M5 ) x2
*In case of MS-80/80A/80M, standard length is 10m for both signal/power cable. For different length of cables
(e.g. to meet your application needs) please contact EKO or your local distributor. MS-80U cable length is 3m,
no other optional lengths are available.

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5. Getting Started
5-1. Parts Name and Descriptions
Each part name and its main function is described below.
Parts Name
A. Diffuser
B. Glass Dome
C. Sensor
D. Body
E. Sunscreen
F. Levelling Screw
G. Cable, Connector
H. Bubble Level
I. Knurling Screw
Parts Name
A. Diffuser
B. Glass Dome
C. Sensor
D. Body
E. Levelling Screw
F. Cable
G. Bubble Level
MS-80 / 80A/ 80M
*Signal converter is built-in for MS-80A and MS-80M.
Figure 5-1. Pyranometer Parts Name (MS-80 / 80A/ 80M)
MS-80U
*The cable can’t be removed from the pyranometer
Figure 5-2. Pyranometer Parts Name (MS-80U)
Table 5-1. Parts Name
(MS-80 / 80A / 80M)
Table 5-2. Parts Name
(MS-80U)

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1. Glass Dome, Diffuser
A glass dome creates a sealed environment for the detector and protects it against dirt and rain. The dome of
the EKO pyranometers is only transparent for radiation emitted by the sun. Hence they block the undesired
infrared radiation emitted by the Earth’s atmosphere. By the combination of the glass dome and the diffuser,
it improves the cosine response generated by the incident light from the entire hemisphere.
2. Sensor
The sensor (thermopile detector), which is the heart of the pyranometer generates a voltage signal that is
proportional to the solar irradiance. The sensor determines the majority of the measurement properties (e.g.
response time, zero offset B, non-linearity, sensitivity, etc.). MS-80 sensor varies less by aging due to special
construction.
3. Sunscreen, Sensor Body, and Level
MS-80, MS-80A and MS-80M have a sunscreen to prevent body temperature increase generated by direct
sun light. Weather resistant metal is used for the body, which has resistant against decrease of nocturnal
radiation and heat radiation, and rain and dusts. The integrated sprit level is used for setup and maintaining
the sensor in a horizontally levelled position.
4. Drying agent
Enclosed drying agents inside the sensor body keep the sensor inside dry, prevents condensation of humidity
inside of the glass dome. There is no need to replace the drying agents as they are replaced when sensor is
recalibrated at EKO.
5. Cable and Cable Connector
MS-80/ 80A/ 80M are shipped with a 10 meter long output cable as standard length*.
Durable materials are used for the cable and connector, and pin terminals are attached at the end of the cable
for easy connection with data logger terminal block.
*If longer cables, round terminals or fork terminals are required, please contact EKO Instruments or your
distributor. (Also see [7. Specification, 7-4. Accessories List] for optional items.)
MS-80U has a 3 meter long output cable already attached, and the leads of the cable are soldered.

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5-2. Setup
In order to obtain high quality measurements from pyranometers, several criteria with respect to set-up and
mounting of the instruments have to be considered. Also see the Quick Start Guide for comprehensive setup
instruction details (included in the package of MS-80, MS-80A and MS-80M).
The ideal mounting position for pyranometers is a location which has a full hemispheric field-of-view without
any obstructions (such as buildings, trees, and mountain); however, it might be difficult to find such locations.
Therefore in practice, it is ideal to install in a position which is free from obstructions at 5° above horizon.
The setup location should be easily accessible for periodic maintenance (glass dome cleaning, desiccant
replacement, etc.), and avoid surrounding towers, poles, walls or billboards with bright colors that can reflect
solar radiation onto the pyranometer.
A strong physical impact to the pyranometer can lead to product damage and/or may cause changes to the
sensitivity.
1. Installing at Horizontal or Tilted Positions
1) Check the installation base where the pyranometer has to be mounted and make sure it has two fixing
holes with the appropriate pitch. The pitch sizes of the fixing holes are as follows (in mm):
Table 5-3. Fixing Hole Pitch and Bolt Size for Pyranometers
MS-80 / 80A / 80M / 80U
Fixing Hole Pitch
65 mm
Fixing Bolt Size
M5 x 75 mm
2) Setup the pyranometer with the signal cable connector facing the nearest Earth’s pole.
In the Northern hemisphere, the connector should be orientated North, in the Southern hemisphere, the
connector should be orientated South. If the signal cable connector is facing towards the sun, the
temperature of the connector increases and may cause measurement error due unwanted
thermoelectric power invited by the connector temperature increase.
3) Remove a sunscreen (except for MS-80U)
The sunscreen can be removed by loosening the knurling screw and sliding it towards the bubble level
direction.
*When carrying the MS-80 with sunscreen attached, always hold the instrument from the bottom.
Holding only the sunscreen part may lead to dropping the sensor as it comes off from the sunscreen.
4) Adjust the pyranometer in a horizontal position by using the 2 levelling screws observing the air bubble
in the bubble level while manipulating the levelling screws. The instrument is levelled horizontally if the
air bubble is in the centre ring.
If the pyranometer is not levelled properly, the pyranometer readings are affected by cosine and azimuth
errors. Periodically check the bubble level and adjust the pyranometer’s position if necessary.

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[Installing at Tilted Position]
After the MS-80 is adjusted to horizontal position in levelled surface, install it on tilted mounting position.
*When installing the instrument, do not remove the levelling feet or fixed feet; if the levelling feet are
removed, it may cause abnormal output values due to the thermal effects from the mounting part.
5) Fasten the pyranometer to the base with the 2 bolts (included) and put the sunscreen back on the
pyranometer.
2. Wiring
To extend the cable lifetime, make sure that the cables are not exposed to direct sun light or rain/wind by
lining the cable through a cable conduit. Cable vibrations will potentially cause noise in the output signal.
Fasten the cable so that the cable does not swing or move by wind blowing.
Exposure of the signal cable to excessive electromagnetic emissions can cause noise in the output signal as
well. Therefore the cable should be lined at a safe distance from a potential source generating EM noise,
such as an AC power supply, high voltage lines or telecom antenna.
Wiring Procedure
1) Connect the output cable to the pyranometer by inserting the cable connector to the connector on the
body then turn the screw cap.
*Make sure to check the pin layout of the connector before connecting the cable. If the connector cannot
be easily inserted, DO NOT use any force as it will damage the connector. Visually check the pin layout
again before retrying to insert the connector.
*Make sure to fasten the screw cap by turning it all the way.
*except for MS-80U
2) Connect the output cable:
2-1. How to Connect MS-80 (See Table 5-3. Wire Color Codes also)
Connect the wires with colors that corresponds to each terminal to voltmeter or data logger.
*Use measuring device with input impedance more than 100MΩ. Noise or offset may be generated
if data logger with low input impedance is used.
*Always connect the shield cable. Failing to do so, it will lead to causing noise.
(*) Please select the ohmmeter or data logger which can measure the resistance value (Ω), in
case of measuring the detector temperature (10kΩ@25℃). Please also see the Appendix A-6.
Figure 5-3. How to Connect MS-80
-
Measuring
Device
+
(*)Ω
SG

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2-2. How to Connect MS-80A (See Table 5-3. Wire Color Codes also)
Connect the output cable ends to DC power supply (12-24V), ammeter, voltmeter or data logger
(voltage can be measured by connecting precision resistance in series). For overcurrent
protection, install fuse (0.5A) in series between the DC power supply and MS-80A connecting wire.
Connection for measuring by Current
Connection for measuring by Voltage
(Connecting precision resistance in series)
*A voltage drop will occur when a precision resistance is connected in series. To compensate the
voltage drop, it is recommended to use 24V for power supply voltage.
*Please choose the precision resistance value and cable length those can keep the power supply
to MS-80 over DC 9.6V
Figure 5-3A. How to Connect MS-80A
Figure 5-3B. How to Connect MS-80A
Power supply
DC12-24V
4-20mA Input
Measurement Device
Fuse (0.5A)
Power supply
DC12-24V
1-5V input
Measurement Device
Device
Fuse (0.5A)
-
+
-
+
250Ω

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2-3. How to Connect MS-80M (See Table 5-3. Wire Color Codes also)
Connect the output cable end to DC power supply (12-24V), PC or data logging device. For
overcurrent protection, install a fuse (0.5A) in series between DC power supply and MS-80M
connecting wire.
2-4. How to Connect Communication with Modbus RTU
MS-80M can connect to a system that communicates with MODBUS RTU by using RS-485.
Maximum of 100 units can be connected, and individual address can be assigned.
Connection of MS-80M to the RS-485 communication network is shown below.
Master represents the data logging device (such a PC), and slaves represent devices such as
MS-80M.
Connect the + and –for the master to (A/Tx) and (B/Rx) for each MS-80M. Also at the end of
network, connect 120Ωterminating resistance.
*Modbus ID setting is required separately. (See [A-5. Change MS-80M Settings]).
Figure 5-4. Communication Connection with Modbus RTU
Figure 5-3C. How to Connect MS-80M
When Connecting to PC
When Connecting to Data Logging Device

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2-5. How to Connect MS-80U (See Table 5-4. Wire Color Codes also)
Connect the wires with colors that corresponds to each terminal to voltmeter or data logger
*Use measuring device with input impedance more than 100MΩ. Noise or offset may be generated
if data logger with low input impedance is used.
*Always connect the shield cable. Failing to do so, it will lead to causing noise.
2-6. Wire Assignments
Also see [7-3. Output Cables].
Table 5-4. Wire Color Codes (MS-80 / 80A / 80M)
No.
Cable Color
MS-80
MS-80A
MS-80M
1.
Brown
mV (+)
4-20mA (+)
Power Supply
DC12V(+)
2.
White
mV (-)
4-20mA (-)
Power Supply
DC12V(-)
3.
Blue
NTC (10kΩ)
---
RS485/USB TD/ (+)
4.
Black
NTC (10kΩ)
---
RS485/USB RD/ (-)
5.
Gray
---
---
RS485 G
Shield
Shield
FG
FG
FG
Table 5-5. Wire Color Codes (MS-80U)
No.
Cable Color
MS-80U
1.
Red
mV (+)
2.
White
mV (-)
3.
Green
NTC (10kΩ)
4.
Black
NTC (10kΩ)
Shield
Shield
FG
(*)Ω
-
+
SG
Figure 5-5. How to Connect MS-80U
Figure 5-6. Connector pin number of
MS-80/80A/80M
Each number corresponds to the number in Table 5-4.
There is no corresponding figure for MS-80U because the
cable can’t be removed from MS-80U body.