Martel BetaProbe TI Assembly instructions

BetaProbe TI
High Accuracy
Digital Thermometer
User Reference Manual

1. Introduction
The BetaProbe TI is designed to be a high precision digital thermometer
that can be used in place of mercury liquid in glass (LIG) thermometers.
It can also be used as a reference standard to check the accuracy of
other types of digital or analog thermometers. Because of its intrinsically
safe certification it can be used in many of the same hazardous locations
as analog thermometers.
The long stem 3/16" diameter probe houses a fast responding thin film
sensor that allows very accurate readings to be taken quickly and with
minimal insertion depth.
A rotatable probe mount allows for both horizontal and vertical
orientation of the display module.
A unique feature of the BetaProbe TI are the trend indication arrows
which the user can configure to show when the readings are considered
to be stable enough to record the reading.
Additional features such as min/max storage, selectable sample rate,
auto-shutoff, backlight and damping allow the user to tailor the TI for their
specific application.
Battery life is up to 300 hours. With the auto-shutoff feature the typical
user may only have to change the batteries a few times per year.
1.1 Customer Service Corporate Office:
www.martelcalibrators.com
e-mail: [email protected]
Tel: [phone] Fax: [phone]
Martel Electronics
3 Corporate Park Drive
Derry, NH 03038
1.2 Standard Equipment
Check that your BetaProbe TI has arrived intact. Batteries are factory
installed. Save the packing materials at least until you have verified that
there is no concealed damage.
1.3 Safety information
A Warning identifies conditions and actions that pose hazard(s) to the
user; a Caution identifies conditions and actions that may damage the
Calibrator or the equipment under test.
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Symbols Used
The following table lists the International Electrical Symbols. Some or all
of these symbols may be used on the instrument or in this manual.
Symbol Description
Power OFF
Power ON
Earth ground
Risk of Danger. Important information. Refer to manual.
Battery
Hazardous Voltage
Conforms to ATEX requirements
Conforms to relevant European Union directives.
Wheeled bin, conforms to EC directive 2002/96/EC
Hazard Location Information/Approvals
Ex Hazardous Areas
An Ex-hazardous area as used in this manual refers to an area made
hazardous by the potential presence of flammable or explosive vapors.
These areas are also referred to as hazardous locations.
Ex ia IIB T4 Gb (Ta=–10... +50°C)
KEMA 10ATEX1303
Ex ia IIB T4 Gb (Ta=–10... +50°C)
II 2 G IECEx CSA XX.XXXX
Manufactured by Martel Electronics, Inc.,
3 Corporate Park Dr.
Derry, NH, USA
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Special Conditions for Safe Use:
Misuse
Should the BetaProbe TI be overheated or exposed to sudden physical
shock (i.e. being dropped) it should be examined for any damage that
may cause a safety concern. If in doubt please return the unit for
evaluation to Martel Electronics. Please refer to the Customer Service
Section for contact information.
WARNING
The BetaProbe TI is intended for installation only in locations providing
adequate protection against the entry of solid foreign objects or water
capable of impairing safety.
Caution
To avoid possible damage to calibrator or to equipment
under test:
If the message changes to “OL” the range limit is exceeded and the
BetaProbe TI must immediately be removed from the heat source to
prevent damage.
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2. BetaProbe TI Display and Controls
Item Description
1 Power Key Used to turn the unit on and off
2 Min/Max Key Used to toggle the main display value between min,
max, and trend modes
3 Setup Key Used to change the various set-up parameters of the
unit
4 Enter Key Used to enter data in set-up modes
5 Primary Display Used to display the temperature values in °C or °F.
Also used in set-up mode.
6 Icon Area Used in regular and setup modes
7 Stability Display Used to show the trend and stability of data.
8 Arrow Keys Secondary functions of the MAX/MIN and SETUP keys.
Used for data entry in the setup modes.
9 Backlight Key Secondary function of the ENTER key, turns backlight
on or off.
10 Low Battery Display Flashes when the battery needs to be changed.
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3. Operation
Insertion Depth and Usage
The Standard 12 inch BetaProbe TI can be used with insertion depths
of as little as 4 inches up to 10 inches. For all probes, be sure the last
two inches of probe closest to the head of the device are not inserted
into temperature source. Over insertion of probe may damage the
head of the BetaProbe TI.
For best results, allow ample time for the probe to stabilize before
recording measurements. The stability display is helpful for this.
Power
Push the power button momentarily to turn the unit on or off.
Normal Operation
Controlling the Backlight
Press the enter button to turn the backlight on or off.
Controlling the Primary Data Display
Use the MIN/MAX key to toggle the numeric display between the
current reading, minimum, maximum and 1 minute trend values in
either °C or °F as calculated since power up or since the last reset of
the values. Press and hold the Min/Max key for 2 seconds until "CLR"
is displayed to reset the MIN/MAX/TREND values.
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Stabilty Display
The stability display shows the general stability level relative to a user
configurable stability limit. There are 4 preset settings for stability
represented in °C or °F (0.01, 0.1, 1.0, or 10.0). When the limit is
exceeded, it also shows the general direction in which the readings are
presently moving. The stability level is calculated from a moving
sample window of six seconds duration, with the value extrapolated to
a 1 minute time base.
Segments are turned on to indicate the stability level as follows:
• Center only (stable) when half of the 1 minute trend value is less than
or equal to the stability limit, i.e. maximum deviation –limit to +limit.
• Center plus one arrow up or down (depending on the trend) when
half of the 1 minute trend value is greater than the stability limit and is
less than or equal to twice the stability limit.
• Center plus two arrows up or down (depending on the trend) when
half of the 1 minute trend value is greater than twice the stability limit
and is less than or equal to three times the stability limit.
• Center plus three arrows up or down (depending on the trend) when
half of the 1 minute trend value is greater than three times the
stability limit.
Set-up and Configuration
Use the set-up key to enter the setup modes. Inside the setup modes
the keys work as described below.
MAX/MIN Exit to the main display.
SETUP Step to the next menu item, exiting to the main display after
the last item.
ENTER Enter the data edit mode for the present menu item.
During the data edit mode, use the sand tkeys to scroll through the
values. Use ENTER to exit back to the menu item.
The following paragraphs describe the set-up items in the order in
which they appear.
Temperature Unit Selection
The Temperature Unit Selection menu allows the user to chose the unit
used when displaying the primary variable.
sChange the unit °C or °F.
tChange the unit °C or °F.
ENTER Exit back to menu item
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Stability Limit
The stability limit setting is used to determine when the secondary
display will indicate that the reading is stable. There are 4 preset
settings for stability (0.01, 0.1, 1.0, or 10.0) expressed in the presently
selected units.
sChange the unit stability limit setting to the next greater
setting.
tChange the unit stability limit setting to the next lesser
setting.
ENTER Exit back to menu item
Auto Off Selection
The Auto Off parameters control when the unit automatically turns off
after inactivity on the keypad.
sIncrease the auto off setting and the primary data field,
advancing from "OFF" to 1 minute and stopping at 30
minutes.
tDecrease the auto off setting and the primary data field,
advancing from 1 minute to "OFF" and stopping at "OFF".
ENTER Exit back to menu item
Battery Life
Initially the primary data field shows the percentage of battery life that
is remaining. This display can be toggled to show the battery voltage.
This display is updated continually to reflect the present battery
capacity.
Press the ENTER key to toggle between the two data displays.
Operating Temperature
This selection shows the operating temperature of the unit head in °C
or °F.
sChange the unit °C or °F.
tChange the unit °C or °F.
ENTER Exit back to menu item
Note: Should the head temperature rise above 50°C (122°F) an
“Overtemp” warning will be displayed.
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Damping
The Damping function is a running average of readings used filter out
"noisy" temperature sources. The choices are OFF, 2, 5, or 10 sample
average.
sChange the damp setting to the next item in the list, cycling
from the last to the first.
tChange the damp the previous item in the list, cycling from
the first to the last.
ENTER Exit back to menu item
Sampling Rate
The sampling rate determines how often the Beta Probe samples data.
The settings are (0.5, 1.0, or 2.0), expressed in samples per second.
sChange the rate setting to the next item in the list, cycling
from the last to the first.
tChange the rate setting to the previous item in the list,
cycling from the first to the last.
ENTER Exit back to menu item.
Display Resolution
Display resolution is the number of digits to the right of the decimal
point. The settings are (0.1, 0.01, or 0.001).
sChange the resolution setting to the next item in the list,
cycling from the last to the first.
tChange the resolution setting to the previous item in the list,
cycling from the first to the last.
ENTER Exit back to menu item.
RS232 Communication
The baud rate can be set to 2400 or 9600.
sChange the RS232 communication setting in the list, cycling
from the last to the first.
tChange the RS232 communication setting to the previous
item in the list, cycling from the first to the last.
ENTER Exit back to menu item.
Note: The following Data Logging functions can only be
enabled with the optional BetaLOG-TI program which is
available from Martel or your Martel distributor. Detailed
information on the Logging functions is included with the
BetaLOG software.
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