Dansensor ISM-3 User manual

PBI-200114-D
04/2013
ISM-3
User Manual
EN

Dansensor A/S COPYRIGHT © PBI-200114-D 04/2013
ISM-3 EN User Manual
ISM-3
User Manual
Published by:
Dansensor A/S
Rønnedevej 18, DK-4100 Ringsted
Denmark
Tel.: [phone]
Fax: [phone]
E-mail: [e-mail]
Internet: www.dansensor.com
EN

PBI-200114-D 04/2013 COPYRIGHT © Dansensor A/S
2 User Manual EN ISM-3

Dansensor A/S COPYRIGHT © PBI-200114-D 04/2013
ISM-3 EN User Manual 3
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2. Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3. Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
4. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Start up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
General use of buttons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Start and stop of measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
External/manual start and stop of measuring . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Set-up of alarm limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Output of sensor flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Flow alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Sub menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Setting up of options, relay and external measurement control . . . . . . . . . . . . 16
5. Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
6. Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Offset adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7. Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Current output/voltage output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
8. Error indication/error correction . . . . . . . . . . . . . . . . . . . . . . . . . . .23
9. Spare parts and accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Standard accessories (included). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Accessories (extra) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
10. Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Flow system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Operation and connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

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Dansensor A/S COPYRIGHT © PBI-200114-D 04/2013
ISM-3 EN User Manual 5
1. Introduction
ISM-3 is a microprocessor controlled oxygen analyser which automatically controls the concentration of
oxygen (O2) in a given measuring point. The measured O2concentration is shown in a large, easy
readable display.
ISM-3 can via a simple menu structure be programmed to give alarm in case of a too high or too low O2
concentration. Besides that alarm is given in case of insufficient flow of measuring gas, or in case of
other faults in the ISM-3.
ISM-3 is equipped with a relay for alarm in case of too high/low O2concentration, insufficient measuring
gas flow or other vital faults.
ISM-3 is specially developed for being incorporated/mounted on nitrogen generators etc. where the
control of the O2concentration is a vital part of the process.
Fig. 1. ISM-3 Analyser for incorporation
Fig. 2. ISM-3 Analyser designed for retrofitting

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The following makes ISM-3 an unique O2analyser:
• Precise and quick measuring
• Covers all measuring ranges from 100% to 0 ppm with automatic range shift
• Facultative external control of measuring
• Long term stable sensor - long intervals without calibration
• Automatic control of measuring gas flow
• Programmable current oulet/voltage outlet (extra accessories) 0/4-20mA/0/2-10 Volt with galvanic
separation
• 2 alarm limits programmable for O2content
• Calibration with up to 4 calibration gases plus atmospheric air (20.946 % O2)
• Supplied as stand-alone or for incorporation.
ISM-3 is specifically built for measuring on clean dry gases and gas mixtures where a great measuring
precision, reliability and long term stability and alarm control of flow and content of oxygen are required.
As examples of application the following areas can be mentioned:
• Control of gas
• Atmospheric control under industrial or laboratory conditions
• Control of gas mixtures
• Environmental measurements
• Measuring of oxygen within the chemical, metallurgical and medical industry and
research

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2. Safety precautions
Read and understand this manual for your own safety’s sake and for the quality of the work carried out
using this equipment.
The following terms are used:
"DANGER" to designate a condition which MAY involve mortal danger of serious injury
"CAUTION" to designate a condition which MAY involve serious injury
"NOTE" to designate a condition which MAY involve faulty operation of the equipment
thus causing fault measuring results
Follow the below instructions carefully:
DANGER: Opening ISM-3 may involve mortal danger or serious injury as live high-
voltage leads may be exposed. By opening the ISM-3, the mains supply must
always be switched off. By connecting the net ground must always be
connected.
CAUTION: If ISM-3 is moved or transported, make sure it is note exposed to shocks or
impact.
Only use water or a mild soap lather to clean the front panel. Make always
sure that there is at least 5 cm of free air behind the ventilation holes on the
back of ISM-3.
Our warranty does not cover unless the above instruction is strictly adhered
to.
NOTE: Install always a hose on the "Gas out" connection and make sure that the
measuring gas is transported away from the ISM-3, as the surrounding
atmospheric air is used as reference. In order to observe the CE`s EMC
regulation all connections to the ISM-3 (not mains connections) must be
protected. The screen must end in a PG sleeve on the back of ISM-3.
Recommendations
• In order to prolong the life of the analyser it is recommended to let ISM-3 be constantly connected to
the mains voltage.
• Every 6 months it is recommended to control ISM-3`s calibrations by measuring on gases with known
content of O2.
• Recommended control - and calibration interval is 12 months.

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3. Connection
• Measuring control signal for external control of measuring (10-32 VDC)
• Relay output
• Current output/voltage output (optional)
ST1: Gas alarm and system alarm output. Relay connection. Max. 48V, 1A
pin 1: Common terminal (COMMON)
pin 2: Contact set with switch on function (normally connected) (N.C.)
pin 3: Contact set with switch on functions (normally open) (N.O.)
pin 4: Not connected
ST2: Connection to current output/voltage output
pin 1: +0/4 to 20mA (0/2-10Volt)
pin 2: -/GND
ST3: Connection for measuring control signal
pin 1: +10 to 32VDC
pin 2: -/GND
Fuse 0.63 AT (1.6 AT at 115V AC). Placed inside.
Fan
Gas out
Gas in (For ISM-3 without a build-in pump, 2 - 10 bar is labelled upon request)
Cable inlet for mains connection
Cable inlet for display (only for model for incorporation)
Cable inlet for signal cable. The cable is internally connected to ST1, ST2 and ST3.
Current output/voltage output. Yellow + (plus) and Green -(minus)
Alarm relay output Grey and Pink. Switch is open in case of an alarm.
Measuring control input signal (10 to 32 VDC). Brown +(plus) and White-(minus)
RS232C serial communication port.
13
12
11
GAS IN
GAS OUT
3 41 2
1 21 2
103
2
1
14
5
7
6
8 94