Hickok Electrical Instrument Company 3310 Multimètre numérique
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Modèle:
3310
Date:
1971
Catégorie:
Groupe:
Description:
Information
The Model 3310 Universal Digital multimeter has 32 ranges
covering ac volts and ac current, dc volts and dc current,
resistance, and direct reading true rms dBm at lmW/600
n or 1 mW/900i2 reference. The multimeter may be operated
from a 115 or 230 volt * ac line or from an internal
rechargeable battery pack (The rechargeable nickel cadmium
battery pack is optional). The batteries permit measurement
with complete isolation from power line interference
(infinite common mode rejection). Battery life is 20 hours
on all functions except ac volts, ac current and dBm
where life is minimum of 8 hours. The battery operated
version may be operated from the ac power line while
the batteries are being recharged. Charging circuits are
internal to the multimeter.
The bright fluorescent digital display consists of
seven-segment numerical indicators which provide a maximum
display of 1999. The display features include non-blinking
buffered readout, automatic polarity indicator, automatically
positioned decimal point and blinking overrange indication.
The reading rate is twice per second. The blinking over
range indication occurs when the reading exceeds 1999.
Operator convenience and safety have been stressed in
the design of the Model 3310, The equipment case consists
of box-in-box construction with outer case connected
to third wire ground. The input terminals and internal
circuitry may be elevated 1500 volts from line ground
without damage to the instrument. A color coded front
panel is provided for ease in selection of the 32 ranges.
High input impedance, guarded circuitry and true rms conversion
minimize erroneous measurements. The direct reading dBm
ranges provide conversion free dBm (1 mW/600i2 or 1 mW/900 n)
measurements over a 110 dB range.
Rugged construction, wide temperature operating range,
exceptional overload specifications, and operator convenience
make the Model 3310 ideal for laboratory, production
line or field applications.
Type manuel:
manuel de réparation
Pages:
57
Taille:
13.49 Mbytes (14143118 Bytes)
Langue:
english
Révision:
Manuel-ID:
2490-635
Date:
Qualité:
Document scanné, tous les lisible.
Date de transfert:
2013 01 07
MD5:
b9ed06657b29c6adac506eff73d0d5a3
Téléchargements:
704
Information
I GENERAL INFORMATION ... 1-1
II SPECIFICATIONS ... 2-1
III OPERATING INSTRUCTIONS ... 3-1
Battery Operation ... 3-1
AC Operation ... 3-1
Front Panel ... 3-2
Measurements ... 3-2
DC Volts ... 3-2
AC Volts ... 3-2
Ohms ... 3-2
DC Current ... 3-3
AC Current ... 3-3
Guard ... 3-3
dBm ... 3-3
IV MINIMIZING EXTERNAL SOURCES OF ERROR ... 4-1
Loading Errors - AC ... 4-1
AC Interference on DC Measurements ... 4-1
Dielectric Absorption ... 4-1
Loading Errors - DC ... 4-1
Environment ... 4-1
Ohms Measurements ... 4-1
AC Distortion ... 4-2
V THEORY OF OPERATION ... 5-1
VI CIRCUIT DESCRIPTION ... 6-1
VII FUNCTIONAL OPERATION ... 7-1
Positive DC Volts ... 7-1
Negative DC Volts ... 7-3
Ohms Operation ... 7-3
Megohms Operation ... 7-4
AC Volts and Current Operation ... 7-6
DC Current Operation ... 7-7
dBm ... 7-7
VIII TROUBLESHOOTING ... 8-1
Recommended Equipment ... 8-1
Troubleshooting ... 8-1
1. MOS-IC Outputs and Display ... 8-1
2. Integrator Check ... 8-2
3. Comparator Check ... 8-2
4. Input and Self-zero Switching ... 8-2
5. Reference FET Switching
and Flip-Flop (Megohms Operation) ... 8-3
6. Output Circuitry and YN ... 8-3
7. Function and Range Switching ... 8-3
8. DC Voltage Regulators ... 8-3
9. Reset and Latch Toggle ... 8-4
10. Reference Supply ... 8-4
11. Power Supply ... 8-4
12. AC/DC Converter ... 8-4
12.1. RMS Converter ... 8-4
12.2. Log Converter (dBm) ... 8-5
IX CALIBRATION ... 9-1
Cleaning Procedure ... 9-1
Recommended Calibration Equipment ... 9-1
Calibration Procedure ... 9-1
1. Voltage Regulator ... 9-1
2. Zero and Ohms Adjust ... 9-1
3. Ohms ... 9-1
4. DC Volts ... 9-2
5. AC Volts ... 9-2
6. Current ... 9-2
7. dBm ... 9-2
X PARTS LIST ... 10-1