Gemini Tinyview TV-0020 User manual

Gemini Data LoggersGemini Data Loggers
Tinyview Logger Manual
The name ‘TINYVIEW’ covers a range of
miniature dataloggers fitted with LCD display,
capable of recording and displaying readings.
TINYVIEW offers many features including:
•14992 Reading capacity
•LCD display: 4 digits plus indicators
•Logging intervals of 1 second to 10 days
•Programmable delayed and trigger start
•Off-load whilst logging
•Min/Max/Actual readings
•Two programmable alarms
•3 Stop options
•Manufactured to BS EN ISO9002
•Complies with EN 50082 Pt1&2: 1992/95
TV-0020 TV-0050 TV-0073 TV-0076
TV-0104 TV-0204 TV-0304
9800-4346 Iss. 3 E&OE.

If this equipment is installed or used in a
manner not specified by the manufacturer then
the protection provided by the equipment may
be impaired.
This equipment contains a lithium battery
which must not be cut open, incinerated,
exposed to temperatures above 85°C (185°F)
or recharged. Dispose of in accordance with
local regulations.
The lithium battery should be replaced by a
trained technician using the battery supplied in
the appropriate manufacturer’s service pack.
This equipment should only be interfaced to a
UL or CSA listed computer.
WARNINGS

This equipment should only be interfaced to
equipment which is powered by a Safety Extra
Low Voltage Supply. The maximum voltage
levels are to be 30Vrms, 42V peak or 60V dc
and separated from hazardous voltages by
double or reinforced insulation. For the United
States consider a Safety Extra Low Voltage
Supply to be a Class 2 source as defined in the
National Electrical Code. It the unit is
connected to a computer outdoors the
computer must also comply.
This equipment is safe to use indoors or
outdoors over the temperature range –40°C to
85°C (-40°F to 185°F).

Contents
Features.................................................1
Managing software................…....…........4
Care of unit.........................…................5
IP Ratings……………………………………….…..5
Battery........................................…........6
Specification.........................…...............7
EMC Environment...............….……...........8
TINYVIEW Temperature....…….………….....8
TINYVIEW PT100 & PT1000.….…….……..10
TINYVIEW Rel. Humidity...………………....11
Calibration............................................13
Notes………………………………………………..14
Approvals.............................................15
Warranty..............................................16

FEATURES
Reading Capacity
TINYVIEW stores 14992 data readings, along
with related information such as the logging
interval and description/title, together with
details of the individual logger including the
unique serial number.
Delayed and Trigger Start
The logger may be programmed to delay the
start of the logging cycle by up to 45 days. The
delay can be set as relative or actual time and
will have full date/time retention. A clock face
symbol on the display indicates that the logger
is set for delayed start. Alternatively, it may be
set to start logging when a magnet is applied
to the case. This is indicated by arrows on the
screen pointing to where the magnet must be
applied.
Logging Intervals
The logging interval can be specified in either
seconds or minutes. The seconds mode can be
set up to 4.5 hours, the minutes mode up to 10
days. Certain features are only available in 1

minutes mode. An arrow on the display points
to a graph symbol when the unit is logging.
Off-load While Logging
When the logging interval is specified in
minutes it is possible to retrieve data from a
TINYVIEW without interrupting the logging
program.
Stop Options
TINYVIEW may be set to stop logging in one of
three ways:
i. Never (wraparound). In this mode
the logger continues to record, over-
writing the oldest data first once full.
ii. When full.
iii. After a specified number of readings.
Minimum, Maximum or Actual Readings
It is possible to record minimum, maximum or
actual readings. For minimum and maximum
readings, the recorded value is calculated from
readings taken during the logging interval.
Therefore a minimum logging interval of 2
minutes is needed for these functions.
2

Alarms
TINYVIEW has two programmable alarms. Both
use the LCD display to show an alarm state.
Both are fully programmable for:
i. Alarm trip point
ii. Over or under value.
iii. Latching or non-latching.
Alarm status is shown by the presence of Lo1,
Lo2, Hi1 and Hi2 indicators at the top of the
LCD. These can be cleared via the Windows
software without interrupting the logging.
Display
Numerical reading: Actual temperature or
Relative Humidity level. For temperature, an
arrow pointing to the bottom of the display
indicates the units used (degrees Centigrade or
Fahrenheit). The display is updated every 4
seconds.
Word ’STOP’: Logger in stop mode.
Display blank: In stop mode the logger
turns the display off after 5 minutes to
preserve battery life. When you connect to the
logger in GLM the display turns on again.
3

Word ‘CAL’: Indicates that the logger is
due or nearly due for calibration. This will only
appear on calibrated units and will not stop the
logger functioning. The word CAL will also
appear on calibrated units for a few seconds
each time the battery is inserted. Uncalibrated
units will display ‘BATT’ instead.
MANAGING SOFTWARE
Logging is started and the data retrieved by
means of the management software (GLM)
which is run on a Windows™ based host
computer. In order for TINYVIEW units to
communicate with the host computer, the
correct interface cable is required for
connection between a spare serial port on the
computer and your TINYVIEW data logger
(part number CAB-0007). Should any difficulty
be experienced in communicating with the unit,
firstly check that the cable is properly
connected to the correct serial port. Please
read the GLM manual before using your
TINYVIEW data logger.
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Exporting Data
Data may be exported from the software in text
formats ready for importing into spreadsheet or
other programs. Exported data may include the
title, description and other headings.
CARE OF UNIT
General
Care must be taken to ensure that no dirt or
moisture gets into any connector. Moisture will
cause the unit to stop recording and can lead
to corrosion. Do not open the unit for any
purpose other than to change the battery,
particularly with RH units, as calibration may be
affected. Where the unit has been used in cold
conditions, allow it to warm to room
temperature prior to opening to avoid
condensation forming inside.
IP Ratings
TINYVIEW loggers are rated IP65 splashproof,
but only when connector caps are securely
fitted. In RH models, the sensor is necessarily
only protected to IP20.
5

Battery (Observe warnings inside cover)
Size: 3.6v ½ AA size Lithium
Life: Up to 1 year for PT100, 2 years for
other types.
Battery replacement is recommended at least
yearly for PT100 and every 2 years for the
other types. A Service kit including battery, O-
ring seal and silica gel pack is available from
your TINYVIEW distributor, Part No. SER-9550.
Always stop the unit logging before changing
the battery. To open the unit, unscrew the lid
from the base. Care should be taken when
handling the unit once the lid is removed, since
it may be damaged by static electricity.
Check that the replacement is aligned with
markings on battery holder. The word ‘batt’ will
appear on the display for a few seconds,
followed by the word ‘stop’. If it does not,
remove the battery and try again. When
replacing the battery, it is recommended that
the rubber seal and silica gel pack are also
replaced (see above). When refitting the lid
ensure that the electronics are seated properly
and that no wires are trapped.
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To maximise battery life, use longer logging
intervals (in minutes mode) if possible, and do
not leave the logger connected to the host
computer for long periods. Low temperatures
also reduce battery life.
SPECIFICATION
Physical Dimensions
Basic diameter: 60mm / 2.36”
Length (Int. sensor): 88mm / 3.46”
Length (Ext. sensor): 84mm / 3.31”
Length (Stab probe): 150mm / 5.91”
Width (Int. sensor): 65mm / 2.56”
Width (others): 76mm / 2.99”
Depth: 35mm / 1.38”
Weight (Stab probe): 100g / 3.53 oz. (approx.)
Weight (others): 85g / 3 oz. (approx.)
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EMC environment
The operating environment for TINYVIEW is as
defined in EN50081 pt1: 1992 and EN50082
pt1&2: 1992/95. TINYVIEW complies with EMC
generic immunity standard EN50082 pt1&2:
1992/95 with any standard leads or sensors
supplied. User-supplied leads and sensors may
affect this compliance. Some degradation in
accuracy of the logged variable may occur if
the unit is subject to RF electromagnetic
disturbance (as per generic immunity standard
EN50082 pt 1&2: 1992/95).
TINYVIEW Temperature
Operating Temperature
TINYVIEW range G and H loggers are designed
to operate over a temperature range of -40°C
to +85°C (-40°F to +185°F). The unit may be
permanently damaged if operated outside this
range. See also battery warnings at the front of
this manual. The measuring range can be
extended by using the external probe version.
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TINYVIEW TEMP Sensor ranges
TINYVIEW Temperature loggers use 10K NTC
Thermistors. Ranges available are:
Range G -40°C to +125°C (-40°F to
+185°F)
Range H -30°C to +50°C (-22°F to +122°F)
Approximate Thermal Time Constants
Internal sensor: 10 min. in moving air
Stab sensor: Less than 1 min. in water
Probe sensor: See probe data sheets.
Accuracy and Resolution
Sensor Accuracy
Internal and Stab sensor loggers:
±0.2°C From 0°C to 70°C
(±0.36°F from 32°F to 158°F)
See probe data sheets for probe sensor
accuracy.
Logger Resolution
Range G 0.4°C at +25°C (0.72°F at 77°F)
Range H 0.25°C at 0°C (0.45°F at 32°F)
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TINYVIEW PT100 and PT1000
Loggers
Operating Temperature
TINYVIEW PT100 units are designed to operate
over a temperature range of 0°C to +85°C
(32°F to 185°F), and PT1000 units have an
operating range of -40°C to +85°C (-40°F to
185°F). The unit may not work properly if
operated outside this range. See also battery
warnings at the front of this manual.
Sensor Range
The standard range for TINYVIEW PT100
loggers is -50°C to +300°C (-58°F to +572°F),
and for PT1000 loggers it is –200°C to +100°C
(-328°F to +212°F) (probe tip temperature).
Temperatures below -40°C (-40°F) or above
+200°C (392°F) at the back of the probe may
cause damage to sleeving and reduce
accuracy.
Logger Resolution
PT100: 1°C at 0°C (1.8°F at 32°F)
PT1000: 0.45°C at -200°C (0.7°F at -328°F)
10

PT Sensor Accuracy & Response time
Please refer to the relevant probe data sheet.
TINYVIEW RH LOGGERS
Operating Range
0% to 95% RH (Non-condensing) between
-20°C and +85° C (-4°F to +185°F), but see
sensor working range below.
Accuracy and Resolution
±3% RH at 25°C (77°F).
Temperature Dependency is low.
Resolution is better than 0.5% RH. 11
RH Sensor working range
0
10
20
30
40
50
60
70
80
90
100
0 10 20 30 40 50 60 70 80 90
Temperature [°C]
Humidity [%RH]

Response Time
Less than 10 seconds to 90% in a non-
condensing atmosphere. If wetted the sensor
may take up to 30 minutes to recover.
The RH sensor
The sensor is necessarily exposed and
therefore care must be taken not to cause
damage. It may be gently cleaned in de-ionised
water or pure isopropanol but NOT abrasive
cleaners. Any scratch or residue on the delicate
surface of the sensor will affect the accuracy of
readings. It is recommended that the unit is
checked for re-calibration every six months.
Chemical Resistance
The sensor will resist chemical attack by small
amounts of the following vapours or gases:
Carbon monoxide, Ammonia, Sulphur dioxide,
Chlorine, Formaldehyde, Ethylene oxide, Freon,
Hydrogen chloride, Hydrogen fluoride, Nitrogen
dioxide, Ethanol, Methanol, Ozone,
Isopropanol, Methyl chloride and Hydrogen
peroxide. It also offers resistance to ultraviolet
rays. Permanent sensor degradation may be
caused by contact with substances such as
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salt solution, which can crystallise within the
porous layers of the sensor affecting local
moisture levels there, and hence readings.
CALIBRATION
For critical applications, TINYVIEW can be
supplied with a traceable calibration certificate.
All calibrated units are fitted with a tamper-
proof seal and re-calibration date label. To
assist you in maintaining calibration, all
TINYVIEWs that have been calibrated will warn
you when re-calibration date falls due by
showing the word ’CAL’ on the display every
few seconds. This calibration warning can only
be cleared by returning the unit to your
supplier for calibration cancellation or an
approved Calibration Service, which also
includes battery and O-ring replacement, re-
sealing and dating.
The period for which a calibration is valid will
depend upon the type of logger.
Please note that the Manufacturers Warranty is
NOT extended by the Calibration Service.
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NOTES
14

APPROVALS
This equipment complies with part 15 of the
FCC Rules. Operation is subject to the following
two conditions: (1) this device may not cause
any harmful interference, and (2) this device
must accept any interference received,
including interference that may cause
undesired operation.
Manufactured within the Orion Group to:
ISO EN 9002 part 2. (Cert. No 6134)
15
TINYVIEWs conform to:
EN 50081 pt1:1992
EN 50082 pt1&2:1992/95

WARRANTY
TINYVIEW units carry a manufacturing defects
warranty of 12 months from the date of purchase.
Units returned under warranty will be repaired or
replaced at the manufacturer’s discretion. This
warranty does not cover mishandling, modification or
battery replacement and is subject to the standard
Terms and Conditions of Sale, a copy of which is
available upon request.
Note: The equipment/goods are sold "as is" and
with "all faults".
Claims under warranty should be referred to the point
of sale. ‘Tinytag’ and ‘Tinyview’ are regd. trade marks.
Gemini Data Loggers UK Ltd
e-mail: [email protected]
Australia: Gemini Data Loggers Pty
e-mail: [email protected]
USA: Gemini Data Loggers Inc
e-mail: [email protected]
http://www.geminidataloggers.com
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