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Iso-Tech IDM 91E, Instruction Manual

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Iso-Tech IDM 91E Instruction Manual Download Page 15

14 

(6) Diode Check

 

Range 

Resolution 

Accuracy 

Max.Test  

Current 

Max.Open 

Circuit voltage 



 

1mV 

±(1.5%r 5digit) 

1.5mA 

3.2V 

* Overload Protection: 500V d.c/a.c max. 

 

Instant Continuity Description: 

 
Internal sounder operates when resistance is less than 50

Ω

. 

 

(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. 

 
(

8) Sounder Guard 

 
The sounder will operate if the test lead is connected to the mA/µA (10A) input terminal while the rotary function 
selector is not in mA/µA (10A) position.  There is no sounder guard on the 20mA/10A range of DC and AC function. 

Summary of Contents for IDM 91E

Page 1: ... INSTRUCTION MANUAL IDM91E DIGITAL MULTIMETER EN FR IT DE JP ...

Page 2: ...1 ISO TECH IDM 91E DIGITAL MULTIMETER INSTRUCTION MANUAL ...

Page 3: ...2 ...

Page 4: ... 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: ... 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 Refer to Manual DOUBLE INSULATION Protection Class II DANGER Risk of electric shock ...

Page 6: ...al Display The digital display has a 3 1 2 LCD readout maximum reading 1999 with automatic polarity overrange and low battery indicators 2 Rotary Switch Select the Function and Range desired 3 COM Input Terminal Ground input connector 4 V Ω Input Terminal Positive input connector for Volts Ohms and Diode 5 mA µA Input Terminal Positive input connector for mA and µA measurements up to 200mA 6 10A I...

Page 7: ...6 1 2 4 3 5 6 Figure 1 ...

Page 8: ... of safety can only be guaranteed while the limits of section 2 2 are observed Display 3 1 2 digit Liquid Crystal Display LCD with a maximum reading of 1999 Polarity Indication Automatic positive implied negative indicated Zero Adjustment Automatic Overrange Indication 1 or 1 Low Battery Indication is displayed when the battery voltage drops below operating voltage Measuring Rate 2 5 times per sec...

Page 9: ...ttery removed from meter Temperature Coefficient 0 15 x Specified accuracy C 18 C or 28 C Power Requirements Alkaline 9V battery NEDA 1604A JIS 6AM6 IEC 6LF22 Battery Life Alkaline 300 hours Dimensions WxHxD 84mm x 175mm x 31mm without holster 95mm x 192 mm x 50 mm with holster Weight including battery 340 gms without holster 550 gms with holster Supplied Accessories Protective Holster Battery ins...

Page 10: ...uracy is reading number of digits at 23 C 5 C less than 75 R H 1 DC Volts Range Resolution Accuracy Over voltage protection 200mV 100µV 0 5 reading 1digit 2V 1mV 20V 10mV 200V 100mV 600V 1V 600V d c or 600 V a c rms Input Impedance 10MΩ ...

Page 11: ... 2 AC Volts Range Resolution Accuracy Over voltage protection 200mV 100 µV 1 25 reading 4digit 40Hz 500Hz 2V 1mV 20V 10mV 200V 100mV 600V 1V 600V d c or 600 V a c rms Input Impedance 10MΩ less than 100pF ...

Page 12: ...Accuracy Voltage Burden 200 µA 0 1 µA 1 0 reading 1digit 600mV max 2mA 1 µA 20mA 10 µA 200mA 100 µA 10A 10mA 2 0 reading 3digit 900mV max Overload Protection 1A 415V fast blow fuse for mA µA input 10A 415V fast blow fuse for 10A input ...

Page 13: ...oltage Burden 200 µA 0 1 µA 1 5 reading 3digit 40Hz 500Hz 600mV rms max 2mA 1 µA 20mA 10 µA 200mA 100 µA 10A 10mA 2 5 reading 3digit 40Hz 500Hz 900mV rms max Overload Protection 1A 415V fast blow for mA µA input 10A 415V fast blow for 10A input ...

Page 14: ...cy Max Test Current Max Open Circuit Voltage 200Ω 0 1Ω 0 75 reading 4digit 2 5mA 3 2V 2KΩ 1Ω 0 75 reading 1digit 200 µA 20KΩ 10Ω 40 µA 200KΩ 100Ω 4 µA 20MΩ 10KΩ 1 5 reading 5digit 40nA 0 5V 2MΩ 1KΩ 400nA Overload Protection 500V d c a c max ...

Page 15: ...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 8 Sounder Guard The sounder will operate if the test lead is connected to the mA µA 10A input terminal while the rotary function selector is not in mA µA 10A position There is no sounder guard on th...

Page 16: ...efore 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 3 2 Voltage Measurements 1 Set the rotary switch at the required position 2 Connect black test lead to COM terminal and red lead to VΩ input terminal 3 Connect test leads to measuring points and read the display value ...

Page 17: ...the use of fused test leads constructed in accordance with the HSE guidance note GS38 Electrical Test Equipment for use by Electricians should be used WARNING TO AVOID ELECTRIC SHOCK HAZARD OR DAMAGE TO METER DO NOT ATTEMPT TO MEASURE VOLTAGE THAT MIGHT EXCEED 600 V d c OR 600V a c rms DO NOT APPLY MORE THAN 600V d c OR a c rms BETWEEN THE COMMON INPUT TERMINAL AND EARTH GROUND NOTICE UNSTABLE DIS...

Page 18: ...up to 200mA For measuring current between 200mA and 10A connect test lead to 10A terminal 4 Connect test leads to measuring points and read the display value 3 4 Resistance Measurement 1 Set the rotary switch to the required position 2 Connect black test lead to COM terminal and read lead to VΩ input terminal 3 Connect test leads to measuring points and read the display value ...

Page 19: ...est is defective 000 short circuit or 1 non conductance is displayed Reverse check of diode If the diode under test is good 1 is displayed If the diode under test is defective 000 or other values are displayed 3 6 Continuity Check by sounder 1 Set the rotary switch at the position 2 Connect the black test lead to COM terminal and the red test lead to VΩ input terminal 3 Connect test leads to the c...

Page 20: ... 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 The protection is likely to be impaired if for example the apparatus shows visible damage fails to perform the intended measurements has been subjected to prolonged storage under unfavorable conditions has been subjected ...

Page 21: ...e bottom gently until it unsnaps from the case top at the end nearest the LCD 4 Lift the battery from the case top and carefully disconnect the battery from battery connector leads 5 Fit the battery connector leads to the terminals of a new battery and reinsert the battery into the case top Make sure that the battery leads to not become pinched between the case bottom and case top 6 Replace the ca...

Page 22: ...ding the fuse out of the fuse holder 4 Install a new fuse of the same size and rating Make sure the new fuse is centered in the fuse holder 5 Make sure that the case top rotary switch and circuit board switch both are in the OFF position 6 Replace the case top and case bottom Make sure that all gaskets are properly seated and the battery leads do not become pinched between the case halves and the ...

Page 23: ...22 Case Bottom Case Top 9V Battery Battery Connector Fuse 2 Fuse 1 Figure 2A Figure 2B Battery Replacement ...

Page 24: ...23 HOW TO USE THE PROBE HOLDER Clip one probe on the holster for one handed meter operation Wrap the leads around the holster to store the test probes ...

Page 25: ...24 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: ...25 HOW TO USE THE TILT STAND AND HOLSTER Meter in holster face down Hang on a nail at the workbench ...

Page 27: ...United Kingdom Japan West Tower 12th Floor Yokohama Business Park 134 Godocho Hodogaya Yokohama Kanagawa 240 0005 Japan USA 7410 Pebble Drive Fort Worth Texas 76118 6961 Canada 1701 Woodward Drive Ste 108 Ottawa Ontario K2C 0R4 Canada South America Av Pdte Eduardo Frei M 6001 71 Centro Empresas El Cortijo Conchali Santiago Chile ...

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