AMC 1100 User manual

1100
Portable Trace Gas Monitor
INSTRUCTIONS
Operation of the AMC-1100 Portable Monitor
For Trace Gases.
(CSA)
IMPORTANT:
Please read these operating instructions completely and carefully
before starting.
Filename: Manual_amc1100(csa)_portable for trace gases.doc Revised 7/19/2004 Copyright ©, April 1990, AMC
The Armstrong Monitoring Corporation
215 Colonnade Road South, Nepean, Ontario, Canada K2E 7K3
Tel: [phone] • Fax: [phone] • Canada & U.S. Toll Free: 1-800-465-5777
E-mail: [email protected] • Internet: www.armstrongmonitoring.com/gas/

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TABLE OF CONTENTS
Section Title Page
1WARRANTY..........................................................................................................................3
1.1 LIABILITY.......................................................................................................................3
1.2 MODIFICATIONS AND SUBSTITUTIONS.....................................................................3
1.3 PRODUCT RETURN......................................................................................................3
2PRODUCT INFORMATION...................................................................................................4
3PRODUCT DESCRIPTION ...................................................................................................5
3.1 GENERAL DESCRIPTION.............................................................................................5
3.1.1 MONITOR SPECIFICATIONS ................................................................................5
4OPERATION AND CALIBRATION.......................................................................................7
4.1 OPERATION ..................................................................................................................7
4.2 CALIBRATION................................................................................................................7
4.2.1 ADJUSTMENTS......................................................................................................7
5PREVENTIVE MAINTENANCE ............................................................................................9
5.1 GENERAL ......................................................................................................................9
5.2 VERIFICATION OF OPERATION ..................................................................................9
5.3 SENSOR REPLACEMENT ............................................................................................9

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1WARRANTY
The AMC-1100 series gas monitor is warranted against defects in material and workmanship for
a period of one (1) year from date of shipment. During the warranty period, The Armstrong
Monitoring Corporation will repair or replace components that prove to be defective in the
opinion of AMC. We are not liable for auxiliary interfaced equipment, or consequential damage.
This warranty shall not apply to any product, which has been modified in any way, which has
been repaired by any other party other than a qualified technician or authorized AMC
representative, or when such failure is due to misuse or conditions of use.
1.1 LIABILITY
All AMC products must be installed and maintained according to instructions. Only qualified
technicians should install and maintain the equipment. AMC shall have no liability arising from
auxiliary interfaced equipment, for consequential damage, or the installation and operation of
this equipment. AMC shall have no liability for labour or freight costs, or any other costs or
charges in excess of the amount of the invoice for the products.
THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED,
AND SPECIFICALLY THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE. THERE ARE NO WARRANTIES THAT EXTEND BEYOND THE
DESCRIPTION ON THE FACE THEREOF.
Read this manual carefully, as the purchaser is entirely responsible for installation and
operation.
1.2 MODIFICATIONS AND SUBSTITUTIONS
Due to an ongoing development program, AMC reserves the right to substitute components and
change specifications at any time without incurring any obligations.
1.3 PRODUCT RETURN
All products returned for warranty service will be by prepaid freight and they will only be
accepted with a repair number issued by AMC. All products returned to the client will be freight
collect.
WARNING
USING ELECTRICALLY OPERATED EQUIPMENT NEAR GASOLINE, OR GASOLINE
VAPOURS MAY RESULT IN FIRE OR EXPLOSION, CAUSING PERSONAL INJURY AND
PROPERTY DAMAGE. CHECK TO ASSURE THE WORKING AREA IS FREE FROM
SUCH HAZARDS DURING INSTALLATION OR WHEN PERFORMING MAINTENANCE,
AND USE PROPER PRECAUTIONS.

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2PRODUCT INFORMATION
Monitor Part Number ……………….…….…………….
Monitor Serial Number ……………..…………………..
Sensor Warranty Period ………………….……..…….. 1 year
Power Supply Requirement:
•Internal Battery (see note) …………………….
•Typical Battery Life (non-alarm) ………………
•External DC Supply ……………………………
9 VDC, ALKALINE
500 hours
12 to 24 VDC
Operating Temperature ……………………..……….... 0 to 40°C
Recorder Output Range …………………..…………… 0 to 1 VDC
Certification ……………………………………………… CSA C-22.2 #0-M198 & #157-M1987
(CO, H2S, SO2, NO2, Cl2, HCN)
Calibration adapter Part Number……………………….
Sensor Alarms
Part No. Ser. No. Type of Gas Range Low High
0 - ______ PPM
Note:
For proper operation, use only 9V ALKALINE battery (Duracell MN1604 or equivalent).
Note:
All Armstrong Monitoring systems must be installed and maintained according to
instructions, to ensure proper operation. Only qualified technicians should install and
maintain the equipment.

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3PRODUCT DESCRIPTION
3.1 GENERAL DESCRIPTION
The AMC-1100 series gas monitor is a portable hand-held instrument designed to continuously
or intermittently monitor surrounding air for traces of hazardous gases (see section 2, Product
Information). The unit comes with the following features, as shown in Figure 1.
3.1.1 MONITOR SPECIFICATIONS
1. POWER SWITCH On/off power switch. (when power is on, the digital display
is activated)
2. DIGITAL DISPLAY Meter displays concentration of gas and has a build-in low
battery indicator.
3. LED ALARM INDICATOR A red LED indicates alarm levels of gas.
Flashing: Indicates LOW alarm.
Continuous: Indicates HIGH alarm.
4. AUDIO ALARM INDICATOR A buzzer indicates alarm levels of gas.
Intermittent: Indicates LOW alarm.
Continuous: Indicates HIGH alarm.
5. ZERO ADJUST (Z) Calibrates the display to 0 with zero gas.
6. SPAN ADJUST (S) Calibrates the sensitivity of the display with a known gas
mixture.
7. EARPHONE JACK (EAR) Allows use of an earphone when in a noisy environment.
8. RECORDER JACK (REC) Provides a 0-1 VDC linear output signal proportional to the
gas concentration. It can be connected to any recording
or measuring device with a high-impedance input.
9. EXTERNAL POWER JACK
(EXT PWR) Allows the unit to be powered by an external 12-24 VDC power source.

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FIGURE 1: AMC-1100 series, portable trace gas Monitor.

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4OPERATION AND CALIBRATION
4.1 OPERATION
When the unit is switched-on, a reading can be taken after a warm up period of about one
minute. Gas concentrations are indicated in PPM on the digital display.
ALARMS: At the LOW alarm level, the LED flashes and the buzzer beeps intermittently.
At the HIGH alarm level, the LED stays lit and the buzzer sounds continuously.
BATTERY: The word “BAT” appears on the display as a warning to replace the battery.
4.2 CALIBRATION
Recalibration is necessary when replacing the sensor. Verification of calibration should be done
at least once every 3 months for safety reasons. Weekly testing is recommended for highly
demanding applications.
Factory or on-site calibration services, customer training, and/or calibration adapter can be
provided. Refer to section 2 PRODUCT INFORMATION for part number of calibration adapter.
Specify the sensor type and gas when requesting any of the above.
CAUTION:
Only qualified personnel should perform the actual calibration. Contact the factory for
any specific inquiries regarding calibration or operation.
4.2.1 ADJUSTMENTS
For the following procedures, the calibration adapter must be inserted into the sensor opening.
The only adjustments required for full recalibration are Zero and Span (refer to Figure 2).
NOTE: Clockwise adjustment will increase the display reading.
Zero: When there is no gas present (clean air or zero gas), the digital display should read 0.
Attach the two zeroing plugs to the calibration adapter and wait for the display reading
to stabilize, then adjust the zero (Z) trimmer. Remove the zeroing plugs when finished.
Span: To adjust the sensitivity of the sensor, connect the hose from the cylinder to the
calibration adapter, open the regulator valve to expose the sensor to the calibration gas
sample, then adjust the span (S) trimmer until the displayed value matches the gas
concentration applied.

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FIGURE 2: Operation, calibration set-up and adjustments.

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5PREVENTIVE MAINTENANCE
5.1 GENERAL
The portable monitor unit should be brushed or wiped clean once a year or more, depending on
the accumulation rate of dust or dirt. To avoid sensor damage, the unit MUST NOT be
submerged in any liquid. Hosing or splashing the unit with any liquid must also be avoided.
5.2 VERIFICATION OF OPERATION
To verify the operation of the portable monitor unit ensure that it is still responding to gas. This
test should be performed every few months but for more demanding applications verification
should be performed on a weekly basis.
5.3 SENSOR REPLACEMENT
If the display reading is erratic or unusually low when the unit is exposed to gas, the sensor
should be replaced. To replace the sensor, refer to Figure 3 for procedure and assembly order.

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FIGURE 3: Sensor replacement procedure.