Tenmars TM-197 User manual

TM-197 AC/DC Magnetic Field Meter
User’s Manual
HB2TM1970000

Contents:
1 Introduction.......................................................1
2 Accessories.......................................................1
3 Safety Precaution:.............................................2
4 Instrument Description: .....................................3
5 Operation:.........................................................4
5.1 Zeroing………….........................................5
5.2 Peak Measurement…………......................5
5.3 Relative Value Measurement......................6
5.4 Turn on backlight........................................6
5.5 Manual Record for One Log.......................6
5.6 Auto Record...............................................6
5.7 Read the record data from RAM.................7
5.8 Data Hold...................................................7
5.9 The Max./Min. Values Hold: .......................7
5.10 Disable Auto Power Off Function:...............7
5.11 Stopping buzzer.........................................7
5.12 Manual range mode/Automatic range
mode 8
5.13 AC/DC Switching magnetic field.................8
5.14 Setup：Step 1~ Step 8...............................8
6 Software Installation:.......................................10
7 General Specifications: ...................................12
8 Electrical Specification: ...................................14
9 Maintenance or Repair....................................15
10 Battery Replacement.......................................15
11 End of Life Disposal ........................................15

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1Introduction
Measurement for the magnetic field generated from Direct
Current (DC, with display by N/S Magnetic polarity) or
Alternating Current (AC in 40-500Hz).
Measurement for the residual magnetic after processing
of mechanical parts
Measurement for the magnetic field strength of magnetic
applications
Measurement for the residual magnetic generated from
the stress after processing of stainless material
Measurement for the magnetic force of magnetic
materials
Measurement for the various steel materials with natural
magnetism
Measurement for the magnetic field strength of motors in
various electrical appliances
Measurement for the magnetic field strength of permanent
magnets
Detection for the magnetic field of leakage generated from
superconductive magnets
2 Accessories
1
Meter
1
AC/DC
magnetic probe
1
User’s Manual
6
Battery 1.5V(UM4/AAA)
1
Carrying case
1
Power adapter DC 9V
1
USB cable and Installation disk

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3 Safety Precaution:
Caution! Please refer to this manual.
Improper use may damage the meter and
its components.
Complies with European Directive.
Do not operate in environments with flammable gas or
humid environments.
Operating altitude: up to 2000M.
Operating environment: Indoor use; Pollution degree 2.
Clean with soft cloth when dirty, such as glasses cloth.
Do not clean with chemicals and other solvents.
EMC: EN61326-1:CISPR 11:Group 1, Class B
Class B – Equipment for use in all establishments other
than
domestic.
Group 1 – RF energy generated is needed for internal
functioning.

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4 Instrument Description:
1. Data hold
2. Power
3. Backlight button
4. SET/Peak value hold
5. Read the record data from RAM (R-M)/Left
6. Set to Zero (Zero)/ Relative Value (REL)
7. AC/DC switch/Up
8. Manual range mode/Automatic range mode
9. Manual record (REC)/ Auto record (LOG)
10. Buzzer/GO & NO-GO
11. The max. & min. value hold/Down
12. Probe connector
13. External power DC 9V input
14. USB data output jack
15. Battery cover and tilt stand
16. LCD display

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5 Operation:
1. Press to turn on or turn off.
2. Remove the cap of probe.
3. Move the HALL ELEMENT which is located on
the tip of probe close to the magnet under test
and start measuring. Please refer to Fig. 1.
4. Read the measured value from the LCD
display.
5. Cover the cap of probe back.
If the probe not inserted into the host or
not inserted completely, , will
appear. Please turn power off and
ensure to insert the probe into the host;
again, turn power on.
If the probe is disconnected with the
host while working, will appear
for warning.
Fig. 1
Correct
Incorrect
Magnet Magnet

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5.1 Zeroing
Move the probe away from the magnetic field and
press , ZERO will appear on the LCD. After
zeroing completed, the ZERO disappears.
If more than 3G or 0.3mT, will
appear to prevent from erroneous
zeroing the value in measuring. (from
PC)
If more than 3G or 0.3mT, will
appear to prevent from erroneous
zeroing the value in measuring. (from
HOST)
The zeroing function is unavailable for
temperature.
5.2 Peak Measurement
Move the probe away from the magnetic field, then
press and hold for ≥2 seconds to start Peak
Measurement. The upper digit row presents the
instant measuring; the lower digit row presents the
peak value x.x
Again, press and hold to quit this function.
Zeroing will run automatically in prior to
Peak Measurement. If more than 3G or
0.3mT, will appear to prevent
from erroneous zeroing the value in
measuring.

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5.3 Relative Value Measurement
Press and hold for ≥2 seconds to start
Relative Value Measurement.
The difference between the two magnetic fields can
be compared here. For instance, the 1st magnetic
field is measured to be 100. At the time, press
“REL” button, and the LCD displays 0; again,
measure the 2nd magnetic field. If the measured
value of the 2nd magnetic field is 120, the LCD will
display 20 (120-100=20).
Again, press and hold to quit this function.
5.4 Turn on backlight
Press to turn the backlight on or off.
If connected via an external power supply, the
backlight will lit automatically and stay on.
＊The backlight will automatically turn off after
being lit for 30 seconds.
5.5 Manual Record for One Log
Press to save one log of data, the LCD will
show “REC” and the number of logs. For instance, if
the current number is 10, it will be increased by 1 at
each pressing. The number of logs is limited to be
200; if exceeded, the LCD will show “Full”.
5.6 Auto Record
Press and hold , LCD displays , and the
auto-recording function is enabled.
Again, press to quit this function.
The record is setup on PC via USB
connection.
If the power is insufficient when
recording in logs,
will appears.

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5.7 Read the record data from RAM
Press for the reading mode, and
appears on the LCD. Press or to select
the log number for reading. Press and hold to
quit this mode.
5.8 Data Hold
Press to enable or disable the data hold
function.
5.9 The Max./Min. Values Hold:
Press to enable MIN/MAX function; again,
press to show the MAX and MIN values by
turns. Press and hold to quit.
The measured data can be held and updated as the
measured the MAX and MIN values.
5.10 Disable Auto Power Off Function:
With power off mode, keep pressing and
press to turn on power, LCD will show
"n-SL" that means to disable auto power off function.
Re-starting will reset to the auto power off function.
The function will be disabled when an external
power is detected.
5.11 Stopping buzzer
Press to stop the buzzer’s beep.

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5.12Manual range mode/Automatic range
mode
Press to operate in the manual range mode
with the LCD showing . This can change into two
different range modes.
Press and hold for ≥ 2 seconds to return to
automatic range mode with LCD showing .
5.13AC/DC Switching magnetic field
Press to switch the measurement between AC
magnetic field and DC magnetic field.
5.14Setup：Step 1~Step 8
Press to enter the setup procedure from step
1 to step 8, while flashes on the LCD.
Step 1. Setup unit G or mT.
1. Press or to select the unit G or mT.
2. Again, press to go to Step 2.
Step 2. Setup unit ℃or ℉
1. Press or to select the unit ºC or ºF.
2. Again, press to go to Step 3.
Step 3. Set up the upper limit (Max.) for alarm
GO/NO-GO
1. The default value is 20000G (2000.0mT). Press
or to modify and setup the default
value.
2. Again, press to go to Step 4.

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Step 4. Set up the lower limit (Max.) for alarm
GO/NO-GO
1. The default value is 0G (0.0mT). Press or
to modify and setup the default value.
2. Again, press to go to Step 5.
If the min. value is more than the max.
value,
appears.
Step 5. Setup the measurement interval of alarm
GO/NO-GO
1. The default value is 2 seconds. Press or
to modify and setup the default value.
2. Again, press to go to Step 6.
Step 6. Setup year/month/date
1. Go to the mode to setup the year/month/date.
2. Press or to select the item to
modify, the digits of the selected item will flash.
3. Then, press or to correct the value.
4. Again, press to go to Step 7.
Step 7. Setup hour/minute:
1. Go to the mode to setup the hour/minute.
2. Press or to select the item to
modify, the digits of the selected item will flash.
3. Then, press or to correct the value.
4. Again, press to go to Step 8.
Step 8. Clear the manual record:
1. Go to the mode to clear the manual record
LCD shows .

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2. Press or to select or where
the default value is 。
3. If the record is not cleared, press again
to return to the measurement mode when the
LCD shows .
4. If is selected, press to return to the
measurement mode and clear the record while
LCD shows "CLEAR".
6Software Installation:
Windows 7 / Windows 10 operating systems
Place the CD included with this meter into the
CD/DVD-ROM drive of the PC to connect to and install
the desktop program:
Run the desktop application:
Connect the USB cable included with this meter
to the PC, as shown in the figure below.

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Execute the PC desktop software program:
Double-click the left mouse button on the desktop
program (Thermometer Meter) to execute the desktop
program.

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7 General Specifications:
Liquid crystal display (LCD) of 5 digits with the
displaying value up to 30000.
Backlight display. The backlight is manually
turned on (it will turn off automatically after turned
on for 30 seconds) and turned off. If connected
via an external power supply, the backlight will lit
and stay on; it will turn off until the external power
supply disconnected.
Enable and disable auto power off function
(default 15 minutes).
Measurement range: 0~3000mT (milli Tesla)
/0~30000G (Gauss); Auto Range function (with
Automatic Measurement).
Conversion of units: 1mT (milli Tesla) = 10G
(Gauss)
Relative value/Peak hold/Real time Zeroing
function.
Enable and disable auto power off function
(default power off is 15 minutes from the last
operation).
DATA HOLD(Data hold)
MAX/MIN (Maximum hold/ Minimum hold)
The GO and NO-GO alarm function and its
settings that can be applied to detect good and
defective products on the production line.
Unit switch for Gauss/Tesla.
The maximum, minimum, and average values:
auto export the top 10 max./top 10 min./ average
values based on the data which is recorded and
downloaded to the computer.
As connected to a PC, press REC to record the
real-time data in the PC.
Overload display: “OL”.
Manual recording: up to 200 logs.

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Automatic recording: up to 7000 logs where the
record interval shall be setup with PC.
" ": detection for battery low
Battery life: Approximately 100 hours.
Operation temperature and humidity: 5°C to 40°C (41°F
to 104°F), < 80%RH。
Storage temperature and humidity:0°C to 50°C, relative
humidity under 70%.
Weight: Approximately 320 grams (with battery)
Dimensions: 156 (L) x 73 (W) x 35 (H) mm
AC to DC Adaptor
External AC 100~240V to DC 9V/0.5A power
supply
Plug: The pin in the center connects to the
positive electrode and the outer case is negative
electrode
Diameter: 5.5mm; internal diameter: 2.1mm

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8Electrical Specification:
Accuracy is indicated as [% rdg + dgt] at 23°C ± 5°C
with RH < 80%.
Specifications
Range
Resolution
Accuracy
DC milli Tesla
300.00 mT
0.01 mT
±(4% + 10dgt)
2000.0 mT
0.1 mT
2000.1 ~
3000.0 mT
0.1 mT N/A
DC Gauss
3000.0G
0.1G
±(4% + 10dgt)
20,000G
1G
20,001 ~
30,000 G 1G N/A
AC milli Tesla
150.00mT
0.01 mT
±(5% + 20dgt)
1500.0mT
0.1 mT
AC Gauss
1500.0G
0.1G
15,000G
1G
Temperatures:
Range -20~50℃/-4~122℉
Resolution ±0.1℃/±0.1℉
Tolerance ±1.0℃/±1.8℉

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9 Maintenance or Repair
1.When the When “ ” symbol is displayed on the LCD, it
means that there is insufficient power; please change the
battery immediately in order to ensure its accuracy.
2.Do not place the meter in locations that have high
temperature, humidity or that are exposed to direct
sunlight.
3.Remember to turn off the power after usage; remove the
battery if not used for a long period of time in order to
prevent battery leakage and causing damages to internal
components.
4.When the instrument failure, only by the authorized
service provider or return the original repair.
10Battery Replacement
1. Turn off the power.
2. Open the frame and battery cover at the back of the
meter, remove the batteries.
3. Insert 6 pcs of new AAA 1.5V batteries according
to the battery polarity.
4. Put the battery cover and frame back in place.
11 End of Life Disposal
Note: This symbol indicates that the meter
and its accessories must be separated and
processed properly.

TENMARS ELECTRONICS CO., LTD.
6F, NO.586 Ruiguang Rd, Neihu Dist.
Taipei City, Taiwan
E-mail: [e-mail]
http://www.tenmars.com