Sequoia Sensormetrix Argon 100 User manual

Argon 100
SIM insertion and debugging connectivity issues
Sensormetrix is a division of Sequoia Technology Group Ltd
Registered in England No. 4004881
VAT Registration No. GB614 5653 45
Sensormetrix
sales
[phone]
Basingstoke Road
fax
[phone]
Spencers Wood
email
[email protected]o.uk
Reading
web
www.sensormetrix.co.uk
Berkshire RG7 1PW
Page 1 of 5
Introduction
The purpose of this application note is to explain how to correctly insert the SIM card into the Argon 100 GSM remote
temperature monitor, and to debug the network connection if the product doesn’t work as expected.
SIM Insertion Method
Remove all power to the Argon 100 by unplugging the power supply. Although the unit has been designed so that no
damage should occur if the SIM card is plugged into a powered unit, it is good practice to insert the SIM card without power
applied to prevent any possibility of damage.
Line up the SIM card and the Argon 100 as shown in Figure 1. Note that the SIM card is polarized and the correct orientation
is determined by the position of the cut corner of the SIM card.
Figure 1: Argon 100 and SIM card orientation

Argon 100
SIM insertion and debugging connectivity issues
Sensormetrix is a division of Sequoia Technology Group Ltd
Registered in England No. 4004881
VAT Registration No. GB614 5653 45
Sensormetrix
sales
[phone]
Basingstoke Road
fax
[phone]
Spencers Wood
email
[email protected]o.uk
Reading
web
www.sensormetrix.co.uk
Berkshire RG7 1PW
Page 2 of 5
Take the SIM card and without twisting or turning it, insert it into the slot on the side of the Argon 100 as shown in Figure 2.
Figure 2: Inserting the SIM
Push the SIM card fully into the slot. The SIM card should go fully into the Argon 100 so that no part of the SIM card
protrudes. A click should be heard when the SIM has been fully inserted. A fully inserted SIM will disappear 1-2mm into the
unit. A pen, paperclip or screwdriver may be required to push the SIM card fully into the Argon 100 as shown in Figure 3.
Figure 3: Fully inserted SIM card

Argon 100
SIM insertion and debugging connectivity issues
Sensormetrix is a division of Sequoia Technology Group Ltd
Registered in England No. 4004881
VAT Registration No. GB614 5653 45
Sensormetrix
sales
[phone]
Basingstoke Road
fax
[phone]
Spencers Wood
email
[email protected]o.uk
Reading
web
www.sensormetrix.co.uk
Berkshire RG7 1PW
Page 3 of 5
If the SIM card protrudes from the unit as shown in Figure 4 then the SIM card has not been properly inserted and needs to
be pushed further into the SIM card slot.
Figure 4: Incorrectly inserted SIM
Once the SIM card has been inserted, apply power. Dependant on network coverage, it may take up to 2 minutes before the
unit will register on a network. However, in most cases this should take no more than 15 seconds.

Argon 100
SIM insertion and debugging connectivity issues
Sensormetrix is a division of Sequoia Technology Group Ltd
Registered in England No. 4004881
VAT Registration No. GB614 5653 45
Sensormetrix
sales
[phone]
Basingstoke Road
fax
[phone]
Spencers Wood
email
[email protected]o.uk
Reading
web
www.sensormetrix.co.uk
Berkshire RG7 1PW
Page 4 of 5
Argon 100 Debugging
There are 3 holes beside the SIM card holder behind which are LEDs that will be visible if turned on. There are 3 LEDS: Blue,
red and green as shown in Figure 5.
Figure 5: LED positions
When power is first applied to the Argon 100, all three LEDs will briefly illuminate. The red LED can be used for network
connection debugging purposes, and the green LED can be used to determine that the main Argon application firmware is
working correctly.
Red LED
There are 4 states indicated by the red LED:
On continuously
Ringing or call in progress
Off
Unit powered off
Blinking once/second
Searching for network/not registered/turning off
Blinking once every 3 seconds
Registered, full service
If the LED is blinking once/second, there are a number of fault possibilities that need to be checked:
1. Try SIM in a mobile phone at the site. Does it register on a network? Is it possible to send a text message (i.e. is
there credit on the SIM)?
2. Is the antenna connected properly?
3. Is the SIM card seated properly?
4. Does the SIM card have a pin number active on it (if so, the pin number needs to be disabled before insertion into
the Argon 100).
5. Does the network provider support the 2G network used by the Argon 100? The Argon 100 supports quad band
GSM but not UMTS (3G) or CDMA. In the UK, this means that the 3 network will not work as they only support
UMTS. A good guide to network operator support can be found at
http://en.wikipedia.org/wiki/Mobile_country_code. Any operator supporting GSM850, GSM900, GSM1800 or
GSM1900 will work with the Argon 100.
Once the LED starts blinking once every 3 seconds, the Argon 100 has been successfully attached to a mobile network and
is now ready for operation. A more robust method of proving that the Argon 100 is attached to the network is to make a
voice call (from another GSM or a land line) to the voice number of the SIM card. Although the Argon 100 will not answer,
the red LED will light continuously indicating that the call is ringing on the Argon 100.

Argon 100
SIM insertion and debugging connectivity issues
Sensormetrix is a division of Sequoia Technology Group Ltd
Registered in England No. 4004881
VAT Registration No. GB614 5653 45
Sensormetrix
sales
[phone]
Basingstoke Road
fax
[phone]
Spencers Wood
email
[email protected]o.uk
Reading
web
www.sensormetrix.co.uk
Berkshire RG7 1PW
Page 5 of 5
Green LED
The green LED indicates what the application in the Argon is doing, and any faults that it encounters. In normal operation,
the green LED will blink between 1 and 5 times, within 20 seconds or so of the last activity. The normal operation
indications are:
Number of Flashes
Description of action
1
Main loop processed
2
Read temperature
3
Alert triggered
4
Log triggered
5
Notify successful
Normally there will be a single flash to indicate the start of the loop followed soon after by 2 flashes to indicate a
temperature read. What happens after that will depend on the alarm and log settings set up when the unit was configured.
If no further action is required by the application after a temperature read, the main loop should commence again after
about 20 further seconds.
Error messages described by the Green LED are:
Number of flashes
Description of Error
11
No temperature read
12
Notify failed
13
HTTP socket: Open failed
14
HTTP socket: Missing 200 OK response
15
HTTP socket: Too much data
16
HTTP socket: Disconnected
17
HTTP socket: Timeout
18
Temperature read failed
19
GSM network not registered
Author: John Culver
Revision B, released 07 January 2014
© 2014 Sequoia Technology Group Ltd. All rights reserved.
No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any
language in any form or by any means without the written permission of Sequoia Technology Group Ltd.
To improve internal design, operational function, and/or reliability, Sequoia Technology Group Ltd reserves the right to
make changes to the products described in this document without notice. Sequoia Technology Group Ltd does not assume
any liability that may occur due to use, or application of, the product(s) or circuit layouts(s) described in this document.