Fluke 35035 User Manual
35035
mA/mAs Meter
February 2005
Manual No. 37549 Rev.5
©2004, 2005 Fluke Corporation, All rights reserved. Printed in U.S.A.
All product names are trademarks of their respective companies
Operators Manual
Fluke Biomedical
Radiation Management Services
6045 Cochran Road
Cleveland, Ohio 44139
440.498.2564
www.flukebiomedical.com/rms
Table of Contents
Section 1: General Information................................................................................... 1-1
1.1 Specifications............................................................................................... 1-1
1.2 Introduction .................................................................................................. 1-2
1.3 Safety Precautions....................................................................................... 1-2
Section 2
2.1 Introduction .................................................................................................. 2-1
2.2 Instrument Features..................................................................................... 2-2
2.3 Manual Addenda.......................................................................................... 2-3
Section 3: Operation.................................................................................................... 3-1
3.1 Battery Installation ....................................................................................... 3-1
3.2 Operating Instructions.................................................................................. 3-1
3.3 Signal Input Limits ....................................................................................... 3-2
Section 4: Maintenance ............................................................................................... 4-1
4.1 General ........................................................................................................ 4-1
4.2 Cleaning the Instrument............................................................................... 4-1
4.3 Test Equipment............................................................................................ 4-2
4.4 Performance Tests ...................................................................................... 4-2
4.4.1 mA Performance Tests........................................................................... 4-2
4.4.2 mAs Performance Tests ......................................................................... 4-2
4.5 Instrument Calibration.................................................................................. 4-3
4.6 Battery Replacement ................................................................................... 4-4
4.7 Fuse Replacement....................................................................................... 4-5
4.8 Recalibration & Repair Information/Technical Assistance............................ 4-5
4.9 Warranty Information ................................................................................... 4-5
: Theory of Operation................................................................................... 2-1
i
General Information
Specifications
1
Section 1
General Information
1.1 Specifications
CURRENT (mA) MILLIAMP SECONDS (mAs)
Range Resolution
20 mA 0.01 mA 100 Ohms
200 mA 0.1 mA 10 Ohms 200 mAs 0.1 mAs 3.2 mA 10 Ohms
2000 mA 1 mA 1 Ohm 2000 mAs 1 mAs 32 mA 1 Ohm
SIGNAL INPUT LIMITS
Function Range Maximum Input Limit Function Range Maximum Input Limit
mA OFF Input shorted –2.0 A max
20 250 mA for 30 sec* 200 1 A for 30 sec*
200 1 A for 30 sec* 2000 2.0 A max (fuse protected)
2000 2.0 A max (fuse protected)
Input Impedance*
Range Resolution
mAs 20 Input shorted –2.0 A max
(fuse protected)
Threshhold
Current
(fuse protected)
Input
Impedance*
* Limit set by power dissipation rating of shunt resistors. Maximum common mode voltage is 500 V.
GENERAL
Meter Accuracy: ±1% of rdg + 2d on all ranges Input Jacks: touch - protected 4 mm banana
Battery Type: Eveready type 522 or equivalent
Battery Life: Approximately 200 hours
Display: 3-1/2 digit LCD; low battery annunciator,
0.50 in high digits
Test Leads: 91.4 cm (36 in.) safety set with finger
guards on probes and shrouded banana plugs
* Specifications subject to change without notice.
Fuse: 5 x 20 mm type F2AH250V fuse
Environmental:
Operating Temperature: 5°C to 35°C
Storage Temperature: -20°C to 50°C
Humidity: 0 to 80%
Dimensions and Weight:
15 cm wide x 5.0 cm deep
x 8.75 cm high (6 in x 2 in x 3-1/2 in);
0.35 kg (0.78 lb)
1-1
35035
Operators Manual
1.2 Introduction
The following safety precautions should be observed before and while operating the Model 35035. They
must be observed in conjunction with those outlined in the manual for the x-ray generator to which the
instrument is connected.
Circuit protection provisions are built into the Model 35035. However, they primarily protect the meter
circuit itself. The x-ray generator must therefore contain voltage and current limiting components within
its circuitry for its own protection as well as for the safety of the technician or operator making the
connections to and performing the tests on the generator.
1.3 Safety Precautions
This instrument is intended for use by qualified personnel who recognize shock hazards and are familiar
with the safety precautions required to avoid possible injury. Read this manual carefully before operating
the Model 35035 mA/mAs Meter.
Exercise extreme caution when a shock hazard is present at the instrument’s input. The American
National Standards institute (ANSI) states that a shock hazard exists when voltage levels greater than 30
V RMS or 42.4 V Peak are present. A good safety practice is to expect that a hazardous voltage is
present in any unknown circuit before measuring.
Do not exceed 500 V peak between input low and earth ground.
Inspect the test leads for possible wear, cracks, or breaks before each use. If any defects are found,
replace the test leads with ones that have a reputable measure of safety. For optimum safety, do not
touch the test leads or the instrument while power is applied to the circuit under test. Turn the x-ray
generator power off before connecting or disconnecting the instrument.
Do not exceed the instrument’s maximum allowable input as defined in the Sections 1 and 3.
The symbol on the instrument indicates that a potential shock hazard may exist during use.
Always expect a shock hazard at the input terminals when the unit is connected to the x-ray generator
and the generator is powered.
Do not make any contact with the unit during exposures. The voltage potential at the input could exceed
the insulating capacity of the case and test leads under fault conditions.
1-2
Loading...