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- Harmonic Noise Analysis
- Continuous On-Line Help
- Harmonic Table: 60Hz or 50Hz (depending on Model)
- Direct Access to Filters
- "Green Window" Test
- Standard Noise Measurement Features
- Digital Signal Processing Technology
using High Resolution FFT
- Spectral Update Time of 7.5 Seconds
- 90dB On Screen Display
- Harmonic Current Probe Input up to 100 Amps
- Peak Finder
- Analysis Mode
- Weather Resistant
- Portable, Durable & Lightweight
- Data Logging
- Auto Dial (DTMF & Dial Pulse)
- Digital Memory
- Hardcopy printout (w/ external printer)
- Selectable Impedance:
600Ω, 900Ω and Bridged (600Ω or 900Ω)
- Filters:
60Hz: C-Message, 3KHz Flat, 20/F
50Hz: Psophometer, 3KHz Flat (C.C.I.T.T.), 1/F, None
- Zoom Mode
- Geiger Mode
- Automatic Shut-Off to conserve battery life
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The Mitigator from Triplett Corporation. A portable, weather-resistant, noise
mitigation test set tailored to the needs of the entire Telco industry. The
Mitigator, available in both 60Hz and 50Hz models, excels at measuring
noise caused by excessive radiated harmonics. The Mitigator has a number
of unique features such as: the "Green Window" Test, Data Logging,
Analysis Mode and Peak Finder, just to name a few. All data analysis is
accomplished internally and does not require additional PC support.
The user-friendly Mitigator is menu driven and has a "HELP" key for
continuous on-line assistance.
Once the desired test has been selected from the main menu, The
Mitigator, quickly and automatically, gathers the necessary data
and displays it on the LCD screen. The data gathered can be stored
in one of the numerous, non-volatile, digital memories and recalled
later for analysis or for a hardcopy print-out via an external serial
printer. |
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- "Smokestack" LCD Readout
While in the Spectrum Mode, the LCD screen produces a "smokestack" display of
vertical bars that detail the level and frequency of the harmonic noise present in the
measured signal. This type of display is ideal for examining the harmonic noise commonly
associated with energy radiated from the power lines of an electric utility. The
LCD screen also displays other pertinent measurements, such as; Circuit Loss, Circuit
Noise and Power Influence. 600 Ohm, 900 Ohm and bridging input impedances
are also provided as well as selectable weightings (C-Message, 3KHz Flat & 20/F) or
[Psophometer, 3KHz Flat (C.C.I.T.T.), 1/F & None].
- Peak Finder
This feature enables you to move from one spectral peak to another, either in the left
or right direction. This eliminates having to scroll through each and every spectral
measurement just to view peaks."Green Window" Test
Sometimes referred to as the "Probe Wire Test", the Green Window Test is a function
that enables you to gather useful information about the power line in a very simple
manner. Once the power line height is entered, The Mitigator will automatically
measure and compute the Ground Return I T, C-Message [PMSG] noise per mile
[KM] and 60Hz [50Hz] voltage per mile [KM].
- Data Logging
This feature enables you to save data over a specified amount of time at specified
intervals using the internal, real-time clock. The data is stored in non-volatile memory
which can be recalled and displayed on the LCD screen or printed out via the RS-
232 Port and external serial printer.
- Zoom Mode
In the "ZOOM" mode, the LCD screen can "zoom in" on an offending frequency,
enlarge it on the screen, and display it along with adjacent frequencies on either side
of it. There are three levels in the "ZOOM" Mode: Low, Medium and High.
Geiger Mode
The "GEIGER" mode allows you to select a function that acts like a Geiger counter.
In this mode, The Mitigator can be used to search for the source of user-definable
noise. A beeper in The Mitigator beeps faster as the source of noise increases in
level. When used in conjunction with a loop coil, this function allows you to employ
a "search-and-find" technique for locating the noise source. The beeper allows you
to search for the noise without looking at the front panel. This is particularly helpful in
situations when you are searching for a noise source while operating a motor vehicle.
- Analysis Mode
The "ANALYSIS" Mode is a sub-feature of the Spectrum Mode. The Analysis Mode
uses data gathered in the Spectrum Mode and enters that data into a probability
matrix containing common problems that relate to power lines. The problems are
then displayed in order of highest probability.
- Three-Way Power Operation
The Mitigator can be powered by three different methods: an AC Power Pack, an
internal rechargeable battery and a 12 volt vehicle system (cigarette lighter). Standard
household current (120Vac) [47 to 63Hz, 218 to 264Vac] will power the unit
through the AC Power Pack and also recharge the internal battery which will operate
the unit for approximately 2 hours on a full charge. The internal battery can be
completely recharged overnight. A unique topology also allows the internal battery
to recharge from a 12 volt vehicle system. All three interfaces are included with The
Mitigator.
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| LCD Frequency: |
60kHz Version |
50kHz Version |
| Display Range (Low Zoom): |
20Hz to 4080Hz |
20Hz to 3400Hz |
| Resolution (Zoom Model |
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Low:
Medium:
High: |
36Hz
12Hz
1Hz |
30Hz
10Hz
1Hz |
| Zoom Mode Window Ranges |
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Low:
Medium:
High: |
4068Hz
1404Hz
117Hz |
3380Hz
1150Hz
117Hz |
| Weighting (Filters): |
C-Message,
3KHz Flat, 20/F |
Psophometer, 3KHz Flat (C.C.I.T.T.),
None, 1/F |
| Max. Input Levels |
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| Across Tip & Ring: |
24VAC & 200VDC |
24VAC & 200VDC |
| Tip-Ring to Ground |
200VAC & 200VDC |
200VAC & 200VDC |
| Noise Measurement Mode Range: |
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Power Influence:
Circuit Noise:
Circuit Loss: |
20 fi 140 dBrn
0 fi 120 dBrn
-90 fi 30 dBm |
| Noise Measurement Mode Accuracy: |
± .5dB |
| Spectrum Mode Range: |
0 fi 120 dBrn Line/Cir
20 fi 140 dBrn Line/PIF |
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| Spectrum Mode Level Accuracy: |
±1dB |
| Spectrum Mode Frequency Accuracy: |
±1Hz |
| Update Time (Spectrum): |
7.5 seconds |
| Update Time (Geiger): |
2 seconds |
| Harmonic Current Probe Range: |
0 - 10A, 0 - 100A |
| Harmonic Current Probe Resolution: |
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| 0 to 30 Amps: |
0.01 Amps |
| 30 to 100 Amps: |
0.1 Amps |
| LCD on Screen Display Range: |
90dB
Input Impedances: 600Ω, 900Ω,
Bridging (600Ω or 900Ω) |
| Hold Circuit: |
Electronic |
| Battery Life (rechargeable): |
2 Hours Typical |
| Dimensions (H x W x D): |
10.75" L x 9.75" W x 5" D |
| Weight: |
Approximately 10 pounds |
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 General Specifcations |
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