Related Manuals for Iso-Tech IDM91E
Summary of Contents for Iso-Tech IDM91E
- Page 1 INSTRUCTION MANUAL IDM91E DIGITAL MULTIMETER...
- Page 2 ISO - TECH IDM 91E DIGITAL MULTIMETER INSTRUCTION MANUAL...
- Page 4 WARNING THESE SERVICING INSTRUCTIONS ARE FOR USE BY QUALIFIED PERSONNEL ONLY. TO AVOID ELECTRIC SHOCK, DO NOT PERFORM ANY SERVICING OTHER THAN THAT CONTAINED IN THE OPERATING INSTRUCTIONS UNLESS YOU ARE QUALIFIED TO DO SO. TO AVOID ELECTRIC SHOCK, DISCONNECT MEASURING TERMINALS BEFORE OPENING ENCLOSURE.
- Page 5 INTRODUCTION 1-1 Unpacking and Inspection Upon removing your new Digital Multimeter from its packing, you should have the following items: 1. Digital Multimeter. 2. Test lead set (one black, one red). 3. Instruction Manual. 4. Protective holster. 1-2 Meter Safety Terms marked on Equipment ATTENTION —...
- Page 6 Symbols in this Manual This symbol indicates where cautionary or other information is found in the manual. Battery 1-3 Front Panel Refer to Figure 1 and the following numbered steps to familiarize yourself with the meter's front panel controls and connectors.
- Page 7 Figure 1...
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Page 8: Specifications
SPECIFICATIONS 2-1 General Specifications This instrument has been designed and tested in accordance with IEC Publication 1010 Pt 1, Class II, Safety Re- quirements for Electrical Equipment for Measurement, Control and Laboratory Use. This level of safety can only be guaranteed while the limits of section 2.2 are observed. - Page 9 2-2 Environmental Conditions: Maximum Altitude : 2000m Installation Category : IEC 1010 600V CAT II 300V CAT III. Pollution Degree : 2 Operating Temperature : 0°C to 50°C, 0 to 80% R.H. Storage Temperature : -20°C to 60°C, 0 to 80% R.H when battery removed from meter. Temperature Coefficient : 0.15 x (Specified accuracy) / °C, <18°C or >28°C.
- Page 10 2-3 Electrical Specifications Accuracy is ± (% reading + number of digits) at 23°C ± 5°C, less than 75% R.H. (1) DC Volts Over voltage Range Resolution Accuracy protection 200mV 100µV ±(0.5%reading + 1digit) 600V d.c. or 600 V a.c. rms 10mV 200V 100mV...
- Page 11 (2) AC Volts Over voltage Range Resolution Accuracy protection 200mV 100 µV ±(1.25%reading + 4digit) 10mV 600V d.c. or 600 V a.c. rms 40Hz — 500Hz 200V 100mV 600V Input Impedance : 10MΩ, less than 100pF...
- Page 12 (3) DC Current Range Resolution Accuracy Voltage Burden 200 µA 0.1 µA 1 µA 600mV max. ±(1.0%reading + 1digit) 20mA 10 µA 200mA 100 µA 900mV max. 10mA ±(2.0%reading + 3digit) Overload Protection : 1A/415V fast blow fuse for mA, µA input. 10A/415V fast blow fuse for 10A input.
- Page 13 (4) AC Current Range Resolution Accuracy Voltage Burden 200 µA 0.1 µA 1 µA 600mV rms max. ±(1.5%reading + 3digit) 40Hz — 500Hz 20mA 10 µA 200mA 100 µA 900mV rms max. ±(2.5%reading + 3digit) 10mA 40Hz — 500Hz Overload Protection : 1A/415V fast blow for mA, µA input. 10A/415V fast blow for 10A input.
- Page 14 (5) Resistance Max.Test Max.Open Range Resolution Accuracy Current Circuit Voltage 200Ω 0.1Ω ±(0.75%reading + 4digit) 2.5mA 3.2V 200 µA 2KΩ 1Ω 20KΩ 10Ω 40 µA ±(0.75%reading + 1digit) 4 µA 200KΩ 100Ω 0.5V 2MΩ 1KΩ 400nA ±(1.5%reading + 5digit) 40nA 20MΩ...
- Page 15 (6) Diode Check Max.Test Max.Open Range Resolution Accuracy Current Circuit voltage ±(1.5%reading + 5digit) 1.5mA 3.2V * Overload Protection: 500V d.c/a.c max. Instant Continuity Description: Internal sounder operates when resistance is less than 50Ω. (7) Auto Power Off: The meter will automatically shut itself off after approximately 30 minutes when the rotary switch is not changed. The meter can be turned back on by switching to another range.
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Page 16: Operation
OPERATION 3-1 Preparation and Caution before Measurement 1. Allow at least 60 seconds after switching on before taking measurements. 2. Remove test leads from the circuit under test before changing the measurement range. 3. If the equipment is used near noise generating equipment, be aware that the display may become unstable or indicate large errors. - Page 17 TEST EQUIPMENT RISK ASSESSMENT (UK RECOMMENDATION) Users of this equipment and/or their employers are reminded that Health and Safety legislation require them to carry out valid risk assessments of all electrical work so as to identify potential sources of electrical danger and risk of electrical injury such as from inadvertent short circuits.
- Page 18 3-3 Current Measurements 1. Set the rotary switch to the required position. 2. Connect black test lead to "COM" terminal. 3. Connect red test lead to "mA/µA" terminal for measurement up to 200mA. For measuring current between 200mA and 10A, connect test lead to "10A" terminal. 4.
- Page 19 3-5 Diode Check 1. Set the rotary switch to the " " position. 2. Connect the black test lead to the "COM" terminal and the red test lead to the "VΩ " input terminal. 3. Connect the test lead to the diode. Normally the forward voltage drop of good silicon diode is shown between .500V and .900V.
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Page 20: Maintenance
MAINTENANCE To keep the instrument clean, wipe the case with a damp cloth and detergent, do not use abrasives or solvents. Any adjustment, maintenance and repair of opened instrument with voltage present shall be avoided as far as possible and, if inevitable, shall be carried out by a skilled person who is aware of the hazard involved. Whenever it is likely that the protection has been impaired, the instrument shall be made inoperative and be secured against any unintended operation. -
Page 21: Battery Replacement
BATTERY REPLACEMENT The meter is powered by a single 9V battery. Refer to Figure 2A and use the following procedure to replace the battery: 1. Disconnect the test leads and turn the meter off. Remove the test leads from the front terminals. 2. -
Page 22: Fuse Replacement
FUSE REPLACEMENT Refer to Figure 2B and use the following procedure to examine or replace the meter's fuse: 1. Perform steps 1 through 3 of the battery replacement procedure. 2. Lift the circuit board from the case top. Do not remove the screws from the circuit board. 3. - Page 23 Battery Replacement Case Bottom Fuse 2 9V Battery Case Top Battery Connector Fuse 1 Figure 2A Figure 2B...
- Page 24 HOW TO USE THE PROBE HOLDER Clip one probe on the holster for Wrap the leads around the one handed meter operation. holster to store the test probes.
- Page 25 HOW TO USE THE TILT STAND AND HOLSTER Swing the stand out for easier meter reading. Swing the upper holder out and hook it over a door.
- Page 26 HOW TO USE THE TILT STAND AND HOLSTER Meter in holster face down. Hang on a nail at the workbench...
- Page 27 Asia Iso-Tech 7410 Pebble Drive 460 Alexandra Road, #15-01A Fort Worth PSA Building Texas 76118-6961 Singapore 119963 Europe Canada Iso-Tech 1701 Woodward Drive PO Box 99 Ste 108 Ottawa Corby Ontario K2C 0R4, Canada Northamptonshire NN17 9RS United Kingdom Japan...