Macurco AimSafety PM400 User manual

IMPORTANT: Keep these user instructions for reference.
AimSafety™ PM400
Multi-Gas Personal Monitor
User Instructions

PM400 Multi-Gas Personal Monitor
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1General Information ................................................................................................................................................ 4
1.1 Key Features ..................................................................................................................................................... 4
1.2 Programmable options (PM Link)..................................................................................................................... 4
1.3 Difference Between PM400 P and PM400 IR ....................................................................................................... 5
1.3.1 Over Range Alarm Function...................................................................................................................... 5
1.3.2 Catalytic Bead technology (PM400 P) Overview ........................................................................................ 5
1.3.3 Non-Dispersive Infra-Red (NDIR) technology (PM400 IR) Overview .......................................................... 6
2Specifications ........................................................................................................................................................... 7
3Product Overview .................................................................................................................................................... 8
3.1 Monitor Overview ............................................................................................................................................ 8
3.2 Display Overview .............................................................................................................................................. 8
3.2.1 LCD display symbols ................................................................................................................................. 9
4Charging, Powering Up and Powering Down........................................................................................................ 10
4.1 Charging the Device........................................................................................................................................ 10
4.2 Power On the Monitor ................................................................................................................................... 10
4.3 Powering Off the Monitor .............................................................................................................................. 11
4.4 User Interface ................................................................................................................................................. 11
4.4.1 Display Modes ........................................................................................................................................ 11
4.5 Menu Screens ................................................................................................................................................. 12
4.6 Alarm and Alerts............................................................................................................................................. 14
4.6.1 Alarm and Alert indication chart ............................................................................................................ 15
4.7 Default Alarm Set Points ................................................................................................................................ 16
4.8 Bump Test Reminder ...................................................................................................................................... 16
5Bump Test .............................................................................................................................................................. 17
6Calibration.............................................................................................................................................................. 20
6.1 Accessing the Calibration Menu..................................................................................................................... 20
6.2 Fresh Air Calibration ....................................................................................................................................... 20
6.3 Span Calibration ............................................................................................................................................. 22
6.4 Exiting the Calibration Menu.......................................................................................................................... 24
7Logging ................................................................................................................................................................... 25
8Maintenance and Cleaning.................................................................................................................................... 26
8.1 Maintenance................................................................................................................................................... 26
8.2 Cleaning .......................................................................................................................................................... 26
9Disposal .................................................................................................................................................................. 26
10 Certificates ......................................................................................................................................................... 27
11 Appendix A – Table of Figures ........................................................................................................................... 28
12 Product limited warranty .................................................................................................................................. 29
Technical Support Contact Information ....................................................................................................................... 29
General Contact Information........................................................................................................................................ 29

PM400 Multi-Gas Personal Monitor
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WARNING
Any unauthorized attempt to repair or modify the product, or any other cause of damage beyond the range of the
intended use, including damage by fire, lightning, or other hazard, voids liability of the manufacturer.
Activate this product only if sensor, visual, detection, and audible cover are clear from contaminants such as dirt and
debris that could block the area where gas is to be detected.
Do not clean and rub the LCD screen of the products with a dry cloth or hands in hazardous environment to prevent static
electricity.
Perform cleaning and maintenance of the products in fresh air that is free of hazardous gases.
Test the response of the sensor regularly with a gas concentration exceeding the alarm set point.
Test LED, audio, and vibration manually.
Gas concentration measurements by the sensor can vary based on the environment (temperature, pressure and
humidity). Therefore, calibration of PM400 should be performed in the same (or similar) environment of the device’s actual
use.
If the temperature changes sharply during use of the device (e.g., indoors vs outdoors), the value of the measured gas
concentration can suddenly change. Please use the PM400 after the gas concentration value has stabilized.
Severe vibration or shock to the device may cause a sudden reading change. Please use PM
400
after the value of gas
concentration has stabilized. Excessive shock to PM400 can cause the device and/or sensor to malfunction.
Alarm values are set based on the alarm standard that are required by international standards. Therefore, alarm values
should be changed only under the responsibility and approval of the administration of the work site where the instrument
is used.
Use IR communications in the safety zone which is free of hazardous gases.
Do not attempt to replace the battery and sensor as PM
400
is designed to be disposable. Changing the battery and sensor
may impair intrinsic safety and the attempt will void warranty.
CAUTIONS
Before operating this device, please read the manual carefully.
This device is not a measurement device, but a gas detector.
If calibration and self-test fails continuously, please do not use the device.
For the O2 detector, perform calibration every 30 days in the fresh air environment.
Before use, please check the activation date, and if the activation date has passed, please do not use the device.
Clean detectors with a soft cloth and do not use chemical substances for cleaning.
To maintain a 24-month lifetime, avoid the below activities except in necessary cases to check events (Max/Min),
lifetime/concentration, and alarm set points. Otherwise, the frequent use of the button will deplete the battery lifetime
less than 24 months.
1. Push the button frequently without valid reasons.
2. Frequent alarm operation or alarms are remained for a long time.
*Normal Alarm Use: 1 time and 2 minutes per day.
3. Connect with the PM Link frequently except the bump testing.
View a serial number on the label at the back side of the device. (ex, 20170101)
1. The serial number indicates below.
ex: SG 01 01 001 2017(Year) 01(Months) 01(Day) 001(Manufacture Order)

PM400 Multi-Gas Personal Monitor
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1General Information
The innovative new AimSafety PM400 4-gas portable monitor brings enhanced convenience and flexibility to gas
detection in hazardous environments. The ergonomic PM400 diffusion gas monitor simultaneously detects up to four
gases, including hydrogen sulfide (H2S), carbon monoxide (CO), oxygen (O2) and combustibles (LEL). AimSafety’s
PM400 is easy to use and delivers continuous visibility of gas concentrations for faster, more informed decisions that
help protect workers and operational assets which can increase revenue and productivity.
The PM400 LCD display provides real-time gas concentrations and allows plant managers or workers to set high and
low alarm set-points for each sensor, and STEL, and TWA alarm set-points for toxic gases. The PM400’s audible, visual
and vibrating alarms alert the user of unsafe gas concentrations. Standard sensors include: Carbon Monoxide,
Hydrogen Sulfide, Oxygen, and either Catalytic Bead (PM400 P) or Infrared (PM400 IR) for combustible gases (LEL). The
PM400 IR will operate continuously for up to 60 days on a single battery charge.
1.1 Key Features
•Easy-to-Read LCD display
•Single button operation
•Rugged, high visual housing
•IP67 dust tight & water resistant
•60-day continuous runtime (IR version)
•IR sensor is immune to poisoning
•IR sensor detects LEL gases in inert (O2deficient) applications
•Sensor options: CO, H2S, O2, LEL
•Event logging
•Visual alarm with bright flashing LEDs
•Distinct audible alarm
•Vibrating alarm
•Durable weather resistant case
•Rugged clip
1.2 Programmable options (PM Link)
•Stealth Mode
•Go/No Go display
•Bump Test due
•Calibration due
•Calibration gas concentrations
•Alarm levels
•STEL and TWA levels
•Firmware upgrades
For a full list of programmable options, please consult the PM Link software manual.

PM400 Multi-Gas Personal Monitor
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1.3 Difference Between PM400 P and PM400 IR
The PM400 P and the PM400 IR are identical units with one exception: The Combustible gas (LEL) sensors are different
in each model. The PM400 P is equipped with a Catalytic Bead (Pellistor) sensor. The PM400 IR is equipped with a
Non-Dispersive Infra-Red (NDIR) sensor. Be sure to understand the strengths and limitations of the sensor that’s
inside the unit (see below). They directly affect the usage and the lifespan of your detection device.
1.3.1 Over Range Alarm Function
Because of the nature of each sensor, the device will behave differently when exposed to high gas levels which
exceed their sensor ranges this is known as an Over Range Alert.
1.3.1.1 PM400 P
In the event of an Over Range alarm, the Catalytic Bead sensor will prompt Over Range alarms and then turn off the
sensor to avoid damaging the sensor elements.
If an Over Range Alarm sounds, exit to a safe area immediately.
The alarm will continue to sound because the sensor is disabled. To silence the alarm, the monitor will need to be
turned off and back on again, thus re-enabling the sensor.
1.3.1.2 PM400 IR
In the event of an Over Range alarm, the NDIR sensor continues to function normally.
If an Over Range Alarm sounds, exit to a safe area immediately.
A simple press of the [Function] key acknowledges and silences the alarm. The sensor continues to stay active even
though the level has exceeded 100% LEL.
1.3.2 Catalytic Bead technology (PM400 P) Overview
1.3.2.1 Advantages of Catalytic Bead technology
•The Catalytic sensor detects a wide range of combustible (LEL) gasses: The PM400 P is the device that should
be used if hydrogen and acetylene are among the gases in your environment that require detection.
Make careful note of the disadvantages of this sensor listed below; they have a direct effect on user safety and on
the function of the device.
1.3.2.2 Disadvantages of Catalytic Bead technology
•The Catalytic sensor can be “poisoned”: Certain chemicals will damage the internal elements and cause the
sensor to lose sensitivity. Common poisons are chemicals which contain silicon (found in hand lotions and
industrial lubricants) and Sulfur compounds, which can be released with gases. Chlorine (found in many
cleaning products) and heavy metals can also poison a catalytic sensor. This list is by no means
comprehensive.
•The Catalytic Bead sensors require oxygen to detect gases: Because a Catalytic Bead sensor burns the
sample of gas, oxygen is required for the monitor to detect the presence of combustible gases.
•The Catalytic Bead sensor can burn out: Exposure to high concentrations of gas can completely disable the
sensor. See section 1.3.1 Over Range Alarm Function.

PM400 Multi-Gas Personal Monitor
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The Catalytic Bead sensor is more prone to sensor drift: These sensors typically require more frequent calibration.
See
•The Catalytic sensor requires more power: Due to the sensor design, the Catalytic Bead sensor requires
more power to operate, thus shortening the runtime of the monitor.
1.3.3 Non-Dispersive Infra-Red (NDIR) technology (PM400 IR) Overview
1.3.3.1 Disadvantages of NDIR technology
•Doesn’t detect certain combustible (LEL) gasses: Gases such as hydrogen and acetylene go undetected by
NDIR sensors.
Be sure the safety of your users isn’t dependent on detecting hydrogen and/or acetylene. The PM400 IR does NOT
detect these gases.
1.3.3.2 Advantages of NDIR technology
•The NDIR sensor does not require oxygen to detect gases: Because the NDIR sensor uses absorbed light
spectrum technology to detect combustible gases, the sensor does not require oxygen to operate, making it
ideal for inert and oxygen deficiency applications.
•The NDIR is more durable: Cannot be inhibited, poisoned by external chemicals and gases.
•The NDIR sensor is more stable: Requires minimal recalibration and is typically stable even after extended
storage.
•The NDIR sensor has a longer lifespan: The sensor has a life expectancy of up to 10 years.
•The NDIR sensor requires less power: Due to the sensor design the NDIR sensor requires less power to
operate, thus allowing for extended runtimes compared to the Catalytic Bead sensor.

PM400 Multi-Gas Personal Monitor
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2Specifications
Model
PM400
Gas Type
LEL
O2
CO
H2S
Detecting Method
Diffusion
Measure type
Catalytic Bead (PM
400
P), Infrared (PM400 IR)
Electrochemical
Cell
Electrochemical
Cell
Electrochemical
Cell
Range
0-100 %LEL
0-30 % by
Volume
0-500 ppm
0-100 ppm
Sensor life
PM
400
P> 2 years,
PM400 IR > 5 years
2 years
> 2 years
> 2 years
Resolution
1%LEL
0.1% by Volume
1 PPM
1 PPM
User Settings
User Selectable via PM Link and PC Software or Bump Test-Calibration Station
Display
Backlit digital LCD display
Alarm display
RED, Flashing LEDs (Light-Emitting Diode)
Audible alarm
90 dB at 4 inches (10 cm)
Vibrating alarm
Vibration Alarm
Alarm level set
User Selectable via PM Link and PC Software or Bump Test-Calibration Station
Event Logging
Data logging: Two months - Continuous at 1 - minute intervals, 24 hours a day, 7
- days a week
Event logging: 30 events, Calibration logging: 30 calibrations, Bump Test logging:
30 bump tests
Mounting type
Clip
Program set mode
User Selectable via PM Link and PC Software or Bump Test-Calibration Station
Operating temperature
-4°F to 122°F (-20°C to 50°C)
Operating humidity
10 to 95% RH (Non-condensing)
Battery
Rechargeable 3.7V Li-ion
Battery Runtime
PM400 P: 24 hours, PM400 IR: 60 days
Material
Polycarbonate and rubber
Dimensions
4.6” (L) x 2.4” (W) x 1.6” (H) (11.8 cm x 6 cm x 4 cm)
Weight (Battery, clip
included)
8.4 oz. (238 g.) – Catalytic Bead model
8.0 oz. (227 g.) – Infrared model
Approval
See Section 10 Certificates
Ingress Rating
IP67 dust tight & water resistant
Compliance
Electromagnetic Compatibility Directive 2014/30/EU
Manufacturing Approval
The detector manufacturer is certified compliant with ISO 9001:2000 provisions
Options
PM Link, PM
400
Bump Test-Calibration Station
Warranty
2 years

PM400 Multi-Gas Personal Monitor
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3Product Overview
3.1 Monitor Overview
3–1 PM400 Monitor
3.2 Display Overview
3–2 PM400 Display Screen

PM400 Multi-Gas Personal Monitor
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3.2.1 LCD display symbols
High Alarm Display Zero Calibration Display
Low Alarm Display
Device Stabilization &
Calibration Succeeded
Alarm Condition Standard Gas Calibration Display
STEL Alarm Display Remaining Battery Display
TWA Alarm Display