aci PIDS3 User manual

Smart Photoionization Detector Module PIDS3
User Manual
PIDS3 - User Manual (en) - 1.03.docx
Analytical Control Instruments GmbH, Volmerstraße 9A, 12489 Berlin, Germany, www.aci-berlin.com
Page 1 of 58
Smart Photoionization Detector Module
PIDS3
User Manual
from software version: 1.01.002

Smart Photoionization Detector Module PIDS3
User Manual
PIDS3 - User Manual (en) - 1.03.docx
Analytical Control Instruments GmbH, Volmerstraße 9A, 12489 Berlin, Germany, www.aci-berlin.com
Page 2 of 58
Analytical Control Instruments GmbH
Volmerstraße 9A
D-12489 Berlin
Germany
© Analytical Control Instruments GmbH. All rights reserved.

Smart Photoionization Detector Module PIDS3
User Manual
PIDS3 - User Manual (en) - 1.03.docx
Analytical Control Instruments GmbH, Volmerstraße 9A, 12489 Berlin, Germany, www.aci-berlin.com
Page 3 of 58
EU-Konformitätserklärung / EU-Declaration of conformity
Der Hersteller oder sein in der Gemeinschaft niedergelassener Bevollmächtigter /
The manufacturer or the European Authorized Representative:
Analytical Control Instruments GmbH
Volmerstraße 9A
D-12489 Berlin
Germany
erklärt hiermit, dass das Produkt / declares that the product:
Smart Photoionization Detector Module Version 3
Artikelnummer / Part No.:
0003143
Dieses Produkt erfüllt die Bestimmungen der Richtlinie 2014/30/EG (elektromagnetische Verträglichkeit) / This product is in conformance with the
EMC-Directive 2014/30/EU (electromagnetic compatibility):
Normen / Harmonized standards:
EN 50270:2015 –evaluation criteria “B”
Analytical Control Instruments GmbH
Dipl.-Ing. Andreas Otto
Managing Director
Berlin, March 2023

Smart Photoionization Detector Module PIDS3
User Manual
PIDS3 - User Manual (en) - 1.03.docx
Analytical Control Instruments GmbH, Volmerstraße 9A, 12489 Berlin, Germany, www.aci-berlin.com
Page 4 of 58
1Content
2 General.........................................................................................................................................................6
2.1 Correct Use ..........................................................................................................................................6
2.2 Liability Information.............................................................................................................................7
2.3 Safety and Precautionary Measures to be adopted ............................................................................7
2.4 Permanent Instrument Warranty ........................................................................................................7
3 Safety and Usage Instructions......................................................................................................................9
3.1 Terms and Symbols..............................................................................................................................9
4 Technical data............................................................................................................................................10
5 Safety and usage instructions ....................................................................................................................11
5.1 Terms and Symbols............................................................................................................................11
5.2 Correct use.........................................................................................................................................12
5.3 Liability Information...........................................................................................................................12
5.4 Safety and Precautionary Measures to be adopted. .........................................................................13
5.5 Permanent Instrument Warranty ......................................................................................................14
6 Smart Photoionization Detector Modul PIDS3 briefly ...............................................................................15
6.1 Installation .........................................................................................................................................16
6.2 Mechanical Installation......................................................................................................................17
6.3 Electrical Installation..........................................................................................................................18
6.4 Gas supply..........................................................................................................................................20
6.4.1 Using the internal optional pump..............................................................................................20
6.4.2 Using external pump..................................................................................................................21
6.4.3 Using without pump...................................................................................................................21
7 Installation hints ........................................................................................................................................22
8 Operation...................................................................................................................................................23
8.1 Using the module...............................................................................................................................23
8.2 Measurement values .........................................................................................................................25
8.3 Measurement result resolution.........................................................................................................25
9 Measurement config..................................................................................................................................27
9.1 Calibration method............................................................................................................................27
9.2 Gas identification and response factor..............................................................................................27
10 Calibration..............................................................................................................................................28
11 UART Communication............................................................................................................................31
11.1 Message frame...................................................................................................................................32
11.1.1 Checksum calculation.................................................................................................................33

Smart Photoionization Detector Module PIDS3
User Manual
PIDS3 - User Manual (en) - 1.03.docx
Analytical Control Instruments GmbH, Volmerstraße 9A, 12489 Berlin, Germany, www.aci-berlin.com
Page 5 of 58
11.1.2 Message section format.............................................................................................................34
11.2 Module commands ............................................................................................................................35
11.2.1 Module information commands................................................................................................35
11.2.2 Module control commands........................................................................................................36
11.2.3 Module data commands............................................................................................................37
11.2.4 Module Modbus config commands ...........................................................................................40
11.2.5 Module current loop config commands ....................................................................................40
11.2.6 Module autostart config commands..........................................................................................40
11.2.7 Module save config data command...........................................................................................41
11.2.8 Module relays commands..........................................................................................................41
11.2.9 Module lamp commands ...........................................................................................................42
11.2.10 Module sensor commands.....................................................................................................42
12 Modbus Communication .......................................................................................................................43
12.1 Register map ......................................................................................................................................43
12.1.1 Module information register .....................................................................................................43
12.1.2 Module measurement values data registers .............................................................................44
13 Current loop...........................................................................................................................................46
13.1 Connection.........................................................................................................................................46
13.2 Signals and states...............................................................................................................................47
13.3 Configurate measurement range.......................................................................................................47
14 Mechanical Drawing ..............................................................................................................................49
15 Maintenance and Service.......................................................................................................................50
15.2 How To –Replace the PID lamp/front isolation/sensor block...........................................................51
15.3 How To –Clean the PID Lamp............................................................................................................53
15.4 Maintenance Intervals .......................................................................................................................53
16 Ordering information.............................................................................................................................54
16.1 Photoionization Detector Module PIDS3...........................................................................................54
16.2 Type Definition...................................................................................................................................54
17 Spare parts and Accessories ..................................................................................................................55
18 Contact...................................................................................................................................................58

Smart Photoionization Detector Module PIDS3
User Manual
PIDS3 - User Manual (en) - 1.03.docx
Analytical Control Instruments GmbH, Volmerstraße 9A, 12489 Berlin, Germany, www.aci-berlin.com
Page 6 of 58
2General
The company Analytical Control Instruments GmbH (hereinafter the 'manufacturer') provides with the Smart
Photoionization Detector Module PIDS3 (hereinafter the 'module') a complete photoionization detector as a
closed module.
The module detects volatile organic compounds (VOC) with an ionization potential < 10.6 eV in air*.
Other ionization sources are available.
The ionization source is a high-performance vacuum ultraviolet (VUV) hollow cathode lamp with an energy
of 10.6 eV. With its ceramic discharge channel, the stability is improved and a longer service life of up to
15 000 hours and more will be achieved.
With its built-in electronics and microcontroller as well as a combined humidity/temperature sensor, it
provides a flexible and easy to use adaptation into your measurement system. The module comes with a
built-in linearization and temperature/humidity compensation. Built-in barometric pressure sensors offer
later compensation and gas flow monitoring.
The RS485 interface allows additional flexibility to choose the right interface for industrial and laboratory
applications. The optional analog 4 …20 mA output represents the linearized and compensated
concentration value in different scaling.
The module is available in different measurement ranges, with optional included pump and 4 …20 mA
output and MODBUS.
2.1 Correct Use
The device is suitable for outdoor and indoor applications that do not requires explosion protection, e.g.
offshore industry, chemical and petrochemical industry, water and sewage industry. The device comes in a
robust enclosure with dust and water protection.
It is imperative that this user manual be read and observed when using the product. In particular, the safety
instructions, as well as the information for the use and operation of the product, must be carefully read and
observed. Furthermore, the national regulations applicable in the user´s country must be considered for a
safe use.
WARNING
This product is supporting life and health. Inappropriate use, maintenance or servicing may
affect the function of the device and thereby seriously compromise the user`s life.
Before use, the product operability must be verified. The product must not be used if the
function test is unsuccessful, it is damaged, a competent servicing/maintenance has not
been made, genuine manufacturer spare parts have not been used.
Alternative use or use outside this specification will be considered as non-compliance. This also applies
especially to unauthorized alterations to the product and to commissioning work that has not been carried
out by manufacturer or authorized persons.

Smart Photoionization Detector Module PIDS3
User Manual
PIDS3 - User Manual (en) - 1.03.docx
Analytical Control Instruments GmbH, Volmerstraße 9A, 12489 Berlin, Germany, www.aci-berlin.com
Page 7 of 58
2.2 Liability Information
The manufacturer accepts no liability in cases where the product has been used inappropriately or not as
intended. The selection and use of the product are the exclusive responsibility of the individual operator.
Product liability claims, warranties also as guarantees made by manufacturer with respect to the product are
voided, if it is not used, serviced, or maintained in accordance with the instructions in this manual.
2.3 Safety and Precautionary Measures to be adopted
WARNING
The following safety instructions must be observed implicitly. Only in this way can the
safety and health of the individual operators, and the correct functioning of the
instrument, be guaranteed.
•The device described in this manual must be installed, operated, and maintained in strict accordance
with their labels, cautions, instructions, and within the limitations stated.
•The device is designed to detect volatile organic compounds or vapors in air.
•Do not mount the device in direct sunlight as this could cause overheating of the sensor.
•The device must be installed vertical with cable gland and the filter port unit downward to avoid
plugging of the gas inlets by particles or liquids.
•The only absolute method to ensure proper overall operation of the device is to check it with a known
concentration of the gas for which it has been calibrated. Consequently, calibration checks must be
included as part of the routine inspection of the system.
•As with all devices of these types, high levels of, or long exposure to, certain compounds in the tested
atmosphere could contaminate the sensor. In atmospheres where the device may be exposed to such
materials, calibration must be performed frequently to ensure that the operation is dependable and
display indications are accurate.
•Use only genuine manufacturer replacement parts when performing any maintenance procedures
provided in this manual. Failure to do so may seriously impair instrument performance. Repair or
alteration of the device, beyond the scope of these maintenance instructions or by anyone other than an
authorized manufacturer service personnel, could cause the product to fail to perform as designed.
•The device is designed for applications in hazardous areas under atmospheric conditions.
•Significant dust deposits on the gas inlets will increase the response time of the device. Checks for dust
deposits must be done at regular intervals.
2.4 Permanent Instrument Warranty
Warranty
Seller warrants that this product is designed and manufactured to the latest internationally recognized
standards by manufacturer under a quality management system that is certified to ISO 9001. As such the
manufacturer warrants that this product will be free from defective parts and workmanship and will repair
or (at its option) replace any instruments which are or may become defective under proper use within
twenty-four [24] months from date of commissioning by an approved manufacturer representative. This
warranty does not cover wearing parts,
i.e., parts inside the gas way like valves, pumps, lamp and other or damage caused by accident, abuse or
abnormal operating conditions.
Defective goods must be returned to manufacturer premises accompanied by a detailed description of any
issue. Where return of goods is not practicable manufacturer reserves the right to charge for any site
attendance where any fault is not found with the equipment. Manufacturer shall not be liable for any loss or

Smart Photoionization Detector Module PIDS3
User Manual
PIDS3 - User Manual (en) - 1.03.docx
Analytical Control Instruments GmbH, Volmerstraße 9A, 12489 Berlin, Germany, www.aci-berlin.com
Page 8 of 58
damage whatsoever or howsoever occasioned which may be a direct or indirect result of the use or
operation of the Contract Goods by the Buyer or any Party.
This warranty covers instrument and parts sold to the buyer only by authorized distributors, dealers and
representatives as appointed by manufacturer. The warranties set out in this clause are not pro rata, i.e. the
initial warranty period is not extended by virtue of any works carried out there under.
In no event will manufacturer be liable for any incidental damages, consequential damages, special
damages, punitive damages, statutory damages, indirect damages, loss of profits, loss of revenues, or loss of
use, even if informed of the possibility of such damages. Manufacturer is liability for any claims arising out of
or related to this product will in no case exceed the order value. To the extent permitted by applicable law,
these limitations and exclusions will apply regardless of whether liability arises from breach of contract,
warranty, tort (including but not limited to negligence), by operation of law, or otherwise.

Smart Photoionization Detector Module PIDS3
User Manual
PIDS3 - User Manual (en) - 1.03.docx
Analytical Control Instruments GmbH, Volmerstraße 9A, 12489 Berlin, Germany, www.aci-berlin.com
Page 9 of 58
3Safety and Usage Instructions
3.1 Terms and Symbols
In this manual, certain common terms and symbols used to warn you of dangers or to give you cautions that
are important in avoiding injury or damage. Observe and follow these cautions and regulations to avoid
accidents and damage. These terms and symbols explained below.
DANGER
Indicates a hazardous situation, which, if not avoided, WILL result in death or serious injury.
WARNING
Indicates a hazardous situation, which, if not avoided, COULD result in death of serious injury.
CAUTION
Indicates a hazardous situation, which, if not avoided, MAY in minor or moderate injury.
NOTICE
Indicates a property damage message.
Usage
Indicates a helpful information, hints or recommendation.

Smart Photoionization Detector Module PIDS3
User Manual
PIDS3 - User Manual (en) - 1.03.docx
Analytical Control Instruments GmbH, Volmerstraße 9A, 12489 Berlin, Germany, www.aci-berlin.com
Page 10 of 58
4Technical data
*
The indicated values were obtained under standardized conditions with 10.6 eV lamp.
Test gas was Isobutene in synthetic air.
Detector principle
VUV-Photoionization with 10.6 eV hollow cathode lamp
with Ceramic Discharge Channel technology and integrated high voltage supply.
(optional 11.8 eV and 10.0 eV lamp available)
Detection ranges
R0 –0 …2 000 ppm Isobutene *
R1 –0 … 20 ppm Isobutene *
R2 –0 … 5 000 ppm Isobutene *
Lower detection limit
R0 –typical 10 ppb *
R1 –typical 1 ppb *
R2 –typical 1 ppm*
Signal resolution
Dynamic up to 0.01 ppm (0.5 ppb at low range, 0.1 ppm at high range) or
raw precision with 3 digits (5 at low range, 2 at high range)
Response time
T90 < 10 s *
Signal integrity
Up to 100 ppm typical > 98 % *
Up to 5 000 ppm typical > 95 % *
Influence of humidity
Humidity and temperature compensation at 0 ... 60 °C and 0 …90 % rH
residual effect less than < 10 %
Operating conditions
-20 …+50 °C 0 …90 % rH, non-condensing
(-10 …+50 °C with integrated pump)
Storage conditions
-20 …+60 °C 0 …95 % rH, non-condensing
Gas flow
Required 200 …300 ml/min,
Sample inlet with dust and water protection filter
Optional with integrated pump available
Gas connection
Viton tube 1/8” ID (recommended)
Dust and water protection filter required
PID lamp lifetime
Min. 8 000 hours, typical more than 15 000 hours
Handling
Device configuration via RS485 UART
Digital interface
RS485 (UART or MODBUS) galvanic isolated
Analog interface
Current loop, 4 …20 mA (optional)
optional 3 SPDT 30 V / 2 A Relays (surge current)
Power supply
10.0 …28.0 VDC, max 1.5 W, recommended 24.0 VDC
Cable
Cable gland for cable diameter 5 mm … 9 mm
Screw connection inside
Conductor cross section solid max. 1.5 mm²
Conductor cross section stranded max. 1.5 mm²
Calibration
Two-point calibration
Ingress Protection
IP65 enclosure only, IP53 in operation due to gas inlet requirement
Dimension, weight
191 mm x 133 mm x 60 mm (L x W x H), about 1000 g
Warranty
2 years, except for components in gas path and wearing parts