Amphenol Temposonics MH Series Manual do utilizador - Página 9
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3. Operations (continued)
3.2.2 Current (Curr)
The current range will be displayed in Milliamps for M-Series sensor with current output. The current range shown will depend on the sensor model selected.
3.2.3 Battery Level (bAtt)
The M-Series tester utilizes a battery to power both the charger and the sensor.
The M-Series Tester contains circuitry that continually measures the device
battery level to ensure that the necessary voltage is available to power the
sensor. If the battery level drops below 9 volts, the tester will not have the
power to energize most M-Series sensors.
Some M-Series model sensor only require a 5 volt supply and for these transdu-
cers test box battery voltage levels lower than 5 volts will interrupt sensor output.
Low battery (LOBA)
If 'LOBA' (Low Battery) displays, connect the 12 volt power adapter to the charger port. Whenever the internal battery is allowed to discharge below 1.8 volts, the
device will enter low power mode. In the event the device enters low power mode, connect the supply voltage to the charger port and cycle the power. When the
battery level drops below 1.8 volts there is not enough voltage to drive the internal circuitry of the M-Series Tester.
3.2.4 Battery Charging
To recharge the battery of the M-Series Tester, connect the supplied AC power
plug adapter to the charger port on the top of the device. The LED indicator on
the charger will indicate the state of the charging process. The smart charger
that is included in the M-Series Tester Kit will give the battery a quick charge
first and then apply a constant float charge to maintain battery level.
3.2.5 Scaled PWM (Puum)
Configuring the M-Series Tester to PWM mode will allow the output of the scaled PWM sensor to be displayed.
The M-Series Tester will initially show the frequency of the attached scaled PWM sensor output. This will be displayed for 2 seconds before switching the display to
the sensor output range.
The scaled PWM sensor output will display the sensor position as a % of the full stroke length. At the zero position the "zero percent"-value for the attached sensor
will be displayed. At the full stroke position the "full scale percent"-value for the attached sensor will be displayed.
Example readings for the various sensor types:
PWM Sensor Type
% at Zero Position
5 % - 95 %
10% - 90 %
15 % - 85 %
20 % - 80 %
25 % - 75 %
To view the frequency of the scaled PWM sensor:
1.
Press the ‚A' button once.
2.
Frequency will display for 1 second after "puum" for the current mode is displayed.
% at 1/4 stroke
5 %
27,5 %
10 %
30 %
15 %
32,5 %
20 %
35 %
25 %
37,5 %
Note:
1. See sensor model specification to determine what supply voltage is needed.
2. The LOBA (Low Battery) status alert will disrupt the output readings of the
sensor every 60 seconds for 3 seconds until the power adapter is connected
to the tester via the charger port.
Warning:
Only use the supplied 12 volts adapter to charge the M-Series Tester. Using an
off the shelf AC adapter without smart charging capabilities can result in over-
charging the internal Sealed Lead Acid (SLA) batteries. Overcharging the batte-
ries could lead to overheating and damage to the battery cells.
% at 1/2 stroke
50 %
50 %
50 %
50 %
50 %
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M-Series Tester
User's Manual
% at 3/4 stroke
% at full stroke
72,5 %
95 %
70 %
90 %
67,5 %
85 %
65 %
80 %
62,5 %
75 %
MTS Sensors