WIKA SENSeOR AMS01 User manual

24/7 ASSET MONITORING SOLUTION ENERGY
AMS01 USER MANUAL
Document revision: UM00403EN-AA
Date: 2023-01
SENSeOR (head office)
Bâtiment Natura 2
1198, avenue du Docteur
Maurice Donat
06250 Mougins
France
Contact address:
[e-mail]
Regional distributors
Visit
www.senseor.com for
the latest distribution
locations.

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WARRANTY
These products are warranted to be free from functional defects in material and in workmanship at
the time of the manufacturing and to conform at that time to the specifications set forth in the
relevant instruction manuals or in the data sheets, for such products for a period of one year.
Reference SENSeOR terms and conditions provided at time of purchase for complete warranty details.
SENSeOR (head office)
Bâtiment Natura 2
1198, avenue du Docteur Maurice Donat,
06250 Mougins
France
SENSeOR reserves the right to make technical changes or to modify the content of this document
without prior notice.
SENSeOR is not responsible for errors or for possible lack of information in this document.
All rights reserved. No part of this document may be reproduced, distributed, or transmitted in any
form or by any means, including photocopying, recording, or other electronic or mechanical methods,
without the prior written permission of SENSeOR, except in the case of brief quotations embodied in
critical reviews and certain other non-commercial uses permitted by copyright law.
Copyright © 2023, SENSeOR

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TABLE OF CONTENTS
WARRANTY.............................................................................................................................................. 2
TABLE OF CONTENTS............................................................................................................................... 3
SAFETY INSTRUCTIONS............................................................................................................................ 5
1.0 CONVENTIONS......................................................................................................................... 5
1.1 SAFETY INFORMATIONS .......................................................................................................... 6
OVERVIEW............................................................................................................................................... 7
1.0 AVAILABLE PRODUCTS............................................................................................................. 7
1.1 INSTRUCTIONS FOR USE.......................................................................................................... 7
1.2 READER OVERVIEW ................................................................................................................. 8
1.2.1 SIGNAGE LABEL................................................................................................................ 8
1.2.2 FRONT LABEL ................................................................................................................... 8
1.3 CONNECTORS AND FUNCTIONS .............................................................................................. 9
1.3.1 INPUT POWER (1) ............................................................................................................ 9
1.3.2 ENVIRONMENTAL SENSOR (2)......................................................................................... 9
1.3.3 RF ANTENNAS (3)............................................................................................................. 9
1.3.4 MODBUS RS485 (4)........................................................................................................ 10
1.3.5 RELAY OUTPUT (5)......................................................................................................... 10
1.4 STATUS LED............................................................................................................................ 11
1.4.1 DFU MODE LEDS INDICATION (DEVICE FIRMWARE UPGRADE) .................................... 11
1.4.2 APPLICATIVE MODE LEDS INDICATION.......................................................................... 11
INSTALLATION ....................................................................................................................................... 12
1.5 UNPACKING........................................................................................................................... 13
1.5.1 PHYSICAL DIMENSIONS ................................................................................................. 13
1.6 DIN RAIL MOUNTING............................................................................................................. 13
1.6.1 READER EMPLACEMENT................................................................................................ 14
1.6.2 RECOMMENDED SPACING............................................................................................. 14
WIRING.................................................................................................................................................. 15
1.7 POWER................................................................................................................................... 15
1.7.1 INPUT POWER................................................................................................................ 15
1.7.2 RELAY OUTPUT .............................................................................................................. 16
1.7.3 INTERNAL BATTERY ....................................................................................................... 16
1.8 COMMUNICATION CONNECTIONS........................................................................................ 17
1.8.1 CABLING FOR RS485 COMMUNICATION....................................................................... 17
1.8.2 BUS RESISTIVE TERMINATION ....................................................................................... 17
1.8.3 BUS DATA RATE ............................................................................................................. 18

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1.8.4 BUS LENGTH .................................................................................................................. 18
1.8.5 NUMBER OF READERS................................................................................................... 18
1.8.6 MODBUS-RTU DEFAULT CONFIGURATION.................................................................... 18
1.8.7 CABLING FOR ETHERNET COMMUNICATION................................................................ 19
1.9 ENVIRONMENTAL SENSOR CONNECTION............................................................................. 19
1.10 CONNECTING TO EARTH........................................................................................................ 20
1.11 CONNECTING RF ANTENNAS................................................................................................. 20
SYSTEM INSTALLATION AND CONFIGURATION..................................................................................... 21
1.12 SAW TEMPERATURE SENSORS INSTALLATION...................................................................... 21
1.13 SYSTEM CONFIGURATION ..................................................................................................... 21
1.14 RESET AND DFU..................................................................................................................... 21
1.14.1 DFU MODE..................................................................................................................... 21
1.14.2 RESET............................................................................................................................. 22
SYSTEM INTEGRATION .......................................................................................................................... 23
1.15 MODBUS REGISTERS.............................................................................................................. 23
SPECIFICATIONS..................................................................................................................................... 28
PRODUCT CERTIFICATIONS.................................................................................................................... 29
1.16 CERTIFICATIONS .................................................................................................................... 29

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SAFETY INSTRUCTIONS
IT IS IMPORTANT TO READ THIS MANUAL BEFORE INSTALLING OR COMMISSIONING SENSEOR CRITICAL
MONITORING SYSTEM ASSETS.
1.0 CONVENTIONS
DANGER
DANGER INDICATES AN IMMINENTLY HAZARDOUS SITUATION, WHICH, IF NOT AVOIDED, WILL RESULT
IN DEATH OR SERIOUS INJURY.
FAILURE TO FOLLOW THE INSTRUCTIONS GIVEN WILL RESULT IN DEATH OR SERIOUS INJURY.
WARNING
WARNING INDICATES A POTENTIALLY HAZARDOUS SITUATION, WHICH, IF NOT AVOIDED, COULD
RESULT IN DEATH OR SERIOUS INJURY.
FAILURE TO FOLLOW THE GIVEN INSTRUCTIONS CAN RESULT IN DEATH OR IN SERIOUS INJURY.
CAUTION
CAUTION INDICATES A POTENTIALLY HAZARDOUS SITUATION, WHICH, IF NOT AVOIDED, MAY RESULT
IN MINOR OR MODERATE INJURY.
FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PERSONAL INJURY.
NOTICE
NOTICE PROVIDES GUIDANCE ON DAMAGE UNRELATED TO PERSONAL INJURY, SUCH AS THOSE THAT
CAN CAUSE DETERIORATED PROPERTY.
FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN PROPERTY DAMAGE.
IMPORTANT
IMPORTANT INDICATES ADDITIONAL INFORMATION ABOUT MAKING EFFECTIVE USE OF THIS
PRODUCT.

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1.1 SAFETY INFORMATIONS
Protect product from moisture and humidity.
►Protect product from too high or too low temperature (see Technical data, p. 28).
►Protect product from fire.
►Do not paint the product.
►Do not modify or disassemble the product. Service must be carried out by SENSeOR.
►Store products in dry and dust-free place.

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OVERVIEW
This reader is dedicated to switchgear monitoring with wireless passive SAW temperature sensors and
UHF partial discharge detection. It is designed for interrogation inside metallic cavities like the
switchgear cabinet and tuned to be compliant with IEC 62271 enabling a license-free use in switchgear
worldwide.
1.0 AVAILABLE PRODUCTS
This manual covers the following products:
-AMS01-T: Temperature monitoring only.
-AMS01-P: Partial discharge monitoring only.
-AMS01-TP: Temperature and partial discharge monitoring.
1.1 INSTRUCTIONS FOR USE
The AMS01 reader is dedicated to monitor electrical equipment like switchgears. The temperature of
live conductors is measured by SAW sensors and prevent overheating and overload. Partial discharge
combined with ambient temperature and humidity is measured by antenna pairs and prevent
equipment failure.
The reader is intended to be installed in low voltage compartments of switchgear or in similar type of
assets. It can also be installed in a weatherproof environmental enclosure.
The reader is intended for use at a maximum altitude of 5 km, typically between -20°C to +70°C (refer
to reader specification for the complete specification) and between 10% to 95% non-condensing
relative humidity.
The system has ± 2°C precision (only non-conductive pollution occurs except that occasionally a
temporary conductivity caused by condensation is to be expected).
WARNING
THE READER IS NOT INTENDED FOR INSTALLATION INTO MEDIUM OR HIGH VOLTAGE COMPARTMENT
ASSETS. ONLY SAW TEMPERATURE SENSORS AND RF ANTENNAS ARE INTENDED FOR INSTALLATION
INTO MEDIUM VOLTAGE COMPARTMENTS.

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1.2 READER OVERVIEW
Included in scope of delivery:
• AMS01 reader.
• User manual.
• Micro SD card.
• 1x 2-pin power connector.
• 1x 4-pin environmental sensor connector.
• 1x 2-pin relay connector.
• 1x 35 mm DIN rail mount with 2x M3x6mm screws.
1.2.1 SIGNAGE LABEL
Figure 1: Product signage label
1.2.2 FRONT LABEL
Figure 2: Example of front product label

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1.3 CONNECTORS AND FUNCTIONS
Figure 3: Rear connection view
1.3.1 INPUT POWER (1)
Pin
Type
Description
1 (left)
+24VDC
Main power supply input (24VDC)
2 (right)
GND
Ground
WARNING
DO NOT REVERSE THE POWER SUPPLY POLARITY, THIS MAY CAUSE ELECTRICAL DAMAGE.
1.3.2 ENVIRONMENTAL SENSOR (2)
Pin
Type
Description
1 (left)
+5VDC
Power supply of environmental sensor (5V out from reader)
2
DAT
Data
3
CLK
Clock
4 (right)
GND
Ground
1.3.3 RF ANTENNAS (3)
Connector
Type
Description
1A (left)
RF
RF antenna 1A
2A
RF
RF antenna 2A
3A
RF
RF antenna 3A
4A
RF
RF antenna 4A
5A
RF
RF antenna 5A
1B
RF
RF antenna 1B
2B
RF
RF antenna 2B
3B
RF
RF antenna 3B
4B
RF
RF antenna 4B
5B (right)
RF
RF antenna 5B
1
2
3

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Figure 4: Front connection view
1.3.4 MODBUS RS485 (4)
Pin
Type
Description
1 (left)
-
Not used
2
-
Not used
3
-
Not used
4
A
Data +
5
B
Data -
6
-
Not used
7
-
Not used
8 (right)
GND
Ground
1.3.5 RELAY OUTPUT (5)
Pin
Type
Description
1 (left)
COM
Common for relay
2 (right)
N.O.
Alarm relay activation output
4
5

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1.4 STATUS LED
The status led is used to indicate the functional state of reader.
1.4.1 DFU MODE LEDS INDICATION (DEVICE FIRMWARE UPGRADE)
DFU is an AMS01 internal recovery/update program mode automatically called during firmware
update process.
Following table indicates reader status in this mode.
Description
LED1 status
LED2 status
LED3 status
No power
Off
Off
Off
DFU mode
Flashing a firmware
1.4.2 APPLICATIVE MODE LEDS INDICATION
Description
LED1 Status
LED2 Status
LED3 Status
No power
Off
Off
Off
System working properly
-
-
System warning
-
-
System error
-
-

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INSTALLATION
IMPORTANT
THE INSTALLATION INSTRUCTIONS ARE ONLY FOR THE AMS01 READER.
IT IS ASSUMED THAT SAW TEMPERATURE SENSORS AND PARTIAL DISCHARGE PROBE ANTENNAS HAVE
BEEN CONFIGURED AND INSTALLED.
WARNING
PROFESSIONAL INSTALLATION REQUIRED.
INSTALLATION AND CONFIGURATION SHOULD BE PERFORMED ONLY BY USERS WHO ARE
TECHNICALLY COMPETENT AND AUTHORIZED TO DO SO.
LOCAL REGULATIONS REGARDING ELECTRICAL INSTALLATION AND SAFETY MUST BE OBSERVED.
FAILURE TO FOLLOW THE GIVEN INSTRUCTIONS CAN RESULT IN DEATH OR IN SERIOUS INJURY.
WARNING
THE USE OF THIS EQUIPMENT IN A MANNER NOT SPECIFIED IN THIS MANUAL OR BY THE
MANUFACTURER MAY IMPAIR PROTECTION OF THE USER AND EQUIPMENT.
CAUTION
THIS EQUIPMENT IS DESIGNED FOR INSTALLATION IN AN ENCLOSURE THAT PROVIDES ADEQUATE
PROTECTION AGAINST ELECTRICAL SHOCK.

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1.5 UNPACKING
1.5.1 PHYSICAL DIMENSIONS
Unit in mm.
1.6 DIN RAIL MOUNTING
CAUTION
ENSURE THAT THE LOW-LEVEL COMPARTMENT WHERE THE READER IS MOUNTED IS SUFFICIENTLY
VENTILATED TO PREVENT OVERHEATING.
THE DEVICE MUST BE ELECTRICALLY GROUNDED FOR EMC COMPLIANCE.
The reader is designed for installation on a grounded 35 mm DIN rail. The reader could be mounted in
two different position to facilitate integration. SENSeOR recommends to mount the device vertically
with antennas output to the top.
Figure 5: Reader dimensions views
Figure 6: Front and side DIN rail fixation views

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1.6.1 READER EMPLACEMENT
The reader is intended to be installed in the low voltage compartment of the switchgear. The other
electrical assets are recommended to be weather protected in an enclosed location.
The reader is required to be installed within a maximum distance of 10 meters from the antennas,
corresponding to the maximum length of the antenna cable for SAW temperature sensors and partial
discharge measurement.
1.6.2 RECOMMENDED SPACING
For connectors access, it is recommended to leave the minimum clearance for top and bottom panels
of 5 cm (2 inches).
5 cm
5 cm

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WIRING
1.7 POWER
The reader power connector is a 2-pin male connector. This screw connector supports from 16 to 26
AWG wires. It is recommended to use connector ferrules on the termination of electrical conductors.
1.7.1 INPUT POWER
The reader operates at 24VDC nominal with a total power consumption of 6 Watts.
SENSeOR recommends the use of a DC power supply in the same low-voltage compartment as the
reader. It is possible to run a DC power bus to power multiple readers from one DC power supply.
However, this option requires a careful consideration of the wire diameter, AC/DC and circuit breaker
capabilities.
Power connections are recommended to be at a minimum of 16 AWG and tin-coated, with a soft drawn
copper of ASTM B8, Class B stranding, 300V rated. Insulation shall be EP (Ethylene Propylene) or EPCP
(Ethylene Propylene Chlorosulfonated Polyethylene compound).
If bussed power is being considered, the wire gauge must be selected to prevent excessive voltage
drop between the DC power source and the reader that is electrically farthest from the source.
The following block diagram outlines the recommended power wiring for the reader with a 2-pole
circuit breaker and an AC/DC power supply. Surge suppression devices can also be installed between
the input line and the neutral only if higher safety rating is required.

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1.7.2 RELAY OUTPUT
Output relay connections are recommended to be at a minimum of 16 AWG and tin-coated, with a soft
drawn copper of ASTM B8, Class B stranding, 300V rated. Insulation shall be EP (Ethylene Propylene)
or EPCP (Ethylene Propylene Chlorosulfonated Polyethylene compound).
1.7.3 INTERNAL BATTERY
SENSeORreader has an internal 3VDC non rechargeable battery to keep the UTC date and the time in
case of power down.
It can be replaced only by authorized person using the following or an equivalent reference:
3V Lithium battery CR2032
WARNING
THERE IS A RISK OF EXPLOSION IF THE BATTERY IS REPLACED BY AN INCORRECT TYPE.
BE CAREFUL OF USED BATTERY IN ACCORDANCE WITH YOUR REGIONAL LEGAL INSTRUCTIONS.

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1.8 COMMUNICATION CONNECTIONS
The components are used to connect Modbus devices, energy communication systems and industrial
equipment with each other and to SCADA or cloud systems.
The reader could be connected to a network using RS485 Modbus-RTU or Ethernet Modbus-TCP.
1.8.1 CABLING FOR RS485 COMMUNICATION
SENSeOR recommends the use of shielded cable for the RS485 wiring, providing at least one twisted
pair, one single line, and a drain wire. Although, a typical recommended cable has two twisted pair.
The twisted pair provides DATA ± signals to each reader while the single line would be for D-COM,
providing a low-impedance return for each reader.
Figure 7: RS485 daisy chaining
1.8.2 BUS RESISTIVE TERMINATION
The RS485 bus needs to be terminated at each end with a 120 Ohms resistor when long stretches of
cable are used. This ensures that the bus has the correct impedance.
However, if the bus length is less than 2% of its maximum (20 meters at 9 600 bauds), the termination
resistor may be omitted.
In general, RS485 adapters and master bus provide the source impedance internally and should be
located at one end of the bus. If not, use this pinout to cable the resistor.
Pin
Type
Description
1 (left)
-
Not used
2
-
Not used
3
-
Not used
4
4
Resistance pin 1
5
5
Resistance pin 2
6
-
Not used
7
-
Not used
8 (right)
-
Not used
From PLC/GATEWAY/SCADA
120 Ohms termination

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1.8.3 BUS DATA RATE
The RS485 bus data rate is dependent on the bus cable length and the number of readers on the bus.
In industrial environments, slower data communication rates are generally more reliable.
1.8.4 BUS LENGTH
Bus cable length has an impact on the overall data rates that can be achieved. A conservative rule for
RS485 follows this equation:
Baud rate x cable length (m) < 10 x 106
A 9 600 bauds network would require a bus length less than (10 x 106/ 9 600) equals to 1 042 meters
(about 3 400 feet). This is perfectly adequate for most substation installations.
1.8.5 NUMBER OF READERS
The more readers on the RS485 bus there are, the weaker the baud rate is. Baud rate must be adjusted
to accommodate the electrical characteristics depending on the circuit.
The following table provides an example of recommended baud rate following the number of readers:
Number of readers
Recommended baud rate
1
115 200
2
38 400
3
19 200
From 4 to 15
9 600
SENSeOR recommends to connect a maximum of 15 readers on a RS485 bus.
1.8.6 MODBUS-RTU DEFAULT CONFIGURATION
By default, the reader is configured with the following settings:
-Baud rate: 19 200
-Data bits: 8
-Parity: None
-Stop bits: 1

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1.8.7 CABLING FOR ETHERNET COMMUNICATION
SENSeOR recommends the use of shielded Cat 5e SFTP cable for the Ethernet wiring, with copper cable
and aluminum shielding, providing real improvement to electromagnetic interferences.
Readers Ethernet network is provided by a fixed configuration more detailed below.
Firstly, the IP address is defined by the last four digits of the product serial number printed on the side
of the reader.
Serial number: Q2A123457890
IP address: 10.200.78.90
Secondly, the connected computer must have an IP address in the range of ‘10.200.AA.BB’subnet and
with ‘255.255.0.0’mask. To avoid any IP addresses conflict between the reader and the computer,
‘AA’ and ‘BB’ settings are recommended to be higher or to be equal to the value of ‘100’.
WARNING
IN CASE OF COMMUNICATION TROUBLES WITH THE ‘AMS01 CONFIGURATION TOOL’ APPLICATION,
CHECK THAT THE FOLLOWING COMMUNICATION PORTS ARE OPENED ON THE COMPUTER: ‘6560’,
‘5706’ AND ‘5707’.
1.9 ENVIRONMENTAL SENSOR CONNECTION
The SENSeOR environmental sensor is used for partial discharge detection.
Connection of this environmental sensor must be done respecting cable colors and connector position.

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1.10 CONNECTING TO EARTH
Earth connections must be done using ground lug with a minimum of 16 AWG and tin-coated, with a
soft drawn copper of ASTM B8, Class B stranding, 300V rated cable. Insulation shall be EP (Ethylene
Propylene) or EPCP (Ethylene Propylene Chlorosulfonated Polyethylene compound).
1.11 CONNECTING RF ANTENNAS
Antenna installation should respect following pattern. Two antennas by compartment connected to
the reader using A and B output connectors.
Ground lug
Antenna 1A
Antenna 1B
Compartment 1
(ex.: Bus bar)
Compartment 2
(ex.: Breaker)
Antenna 2B
Antenna 2A
Compartment 3
(ex.: Cable compart.)
Antenna 3A
Antenna 3B