Summary of Contents for Ferret instruments 94
- Page 1 Digital Multimeter 2000 Count Display Hold Button ON/OFF Button Rotary Switch Common Input Input MilliAmp/ Volts/Ohms MicroAmp Diode Input Input OPERATORʼS MANUAL...
- Page 2 Instrument Service & Technical Support Questions or inquiries about service can be answered by contacting Ferret Ferret Instruments, Inc., 1310 Higgins Drive, Cheboygan, MI 49721 (231) 627-5664, Fax (231) 627-2727, Toll Free (800) 627-5655. Battery Replacement The Meter uses a 9V battery (NEDA 1604 or IEC 6F22). To replace the battery, remove the two screws of the battery compartment from the back of the Meter and lift off the cover of the compartment.
- Page 3 Ranges & Accuracy Accuracy is give as ± ([% of reading] + [number of least significant digits]) at 18°C to 28°C with relative humidity up to 80%, for a period of one year after calibration. Function Range Resolution Accuracy Input Impedance DC Volts 200mV 100µV...
- Page 4 Voltage WARNING! TO AVOID THE RISK OF ELECTRICAL SHOCK AND INSTRUMENT DAMAGE, INPUT VOLTAGES MUST NOT EXCEED 1000V DC OR 750V AC RMS. DO NOT ATTEMPT TO TAKE ANY UNKNOWN VOLTAGE MEASUREMENT THAT MAY BE IN EXCESS OF 1000V DC OR 750V AC RMS. NOTE: When taking voltage measurements, this Meter must be connected in PARALLEL with the circuit, or circuit element under test.
- Page 5 Resistance/Continuity Resistance is measured in Ohms(Ω) and the values can greatly vary from a few Milliohms (mΩ) for contact resistance to millions of ohms for insulators. The Meter can measure down to about 0.1 Ohms and measure as high as 40MΩ. WARNING! TURN OFF POWER AND DISCHARGE ALL CAPACITORS ON CIRCUIT TO BE TESTED BEFORE ATTEMPTING IN CIRCUIT RESISTANCE...
-
Page 6: Diode Check
Diode Check A diode is an electronic switch that allows current to flow in one direction only. It turns on when the voltage is over a certain level, generally greater than 0.3 Volts for a silicon diode. The Meter has a special mode called “Diode Check”. - Page 7 Current CAUTION THE CURRENT FUNCTIONS ARE PROTECTED BY A FUSE OF 600 VOLT RATING. TO AVOID DAMAGE TO THE INSTRUMENT, CURRENT SOURCES HAVING OPEN CIRCUIT VOLTAGES GREATER THAN 600 VOLTS DC OR AC MUST NOT BE MEASURED. NOTE: When taking current measurements, this Meter must be connected In SERIES with the circuit (or circuit element) under test.
- Page 8 SAFETY PRECAUTIONS —Read All Instructions Before Using The Probe— Exceeding the limits of this meter is Dangerous. It will expose you to serious or possible fatal injury. Carefully read and understand the cautions and the specifications limits of this meter. Do not try to measure any voltage that exceeds 1000V DC or 750V AC RMS.
Need help?
Do you have a question about the 94 and is the answer not in the manual?
Questions and answers