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HT321 - HT322

EN - 11

4.3.5. Temperature

measurement (only HT322)

Fig. 6: Using the instrument for Temperature measurement

1. Switch on °C°F.
2. Pressing SEL key to select °C or °F measurements
3. Insert the T10 adapter optional accessory into

V



°C°F

jack, and COM jack with

respect of red and black colours (see Fig. 6)

4. Connect the optional K probe (see § 6.3.2) into the adapter with respect the correct

positive and negative polarity then reading will be displayed

5. For HOLD function and Maximum value measurement please refer to § 4.2

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Содержание HT321

Страница 1: ... Copyright HT ITALIA 2012 Release EN 2 00 19 04 2012 ENGLISH User manual ...

Страница 2: ... 4 2 4 SEL Key 6 4 2 5 Backlight key only HT322 6 4 2 6 Auto Power OFF 6 4 3 Measurements 7 4 3 1 DC Voltage measurement 7 4 3 2 AC Voltage measurement 8 4 3 3 Resistance measurement 9 4 3 4 Diode test and Continuity test 10 4 3 5 Temperature measurement only HT322 11 5 MAINTENANCE 12 5 1 General information 12 5 2 Battery replacement 12 5 3 Cleaning 12 5 4 End of life 12 6 TECHNICAL SPECIFICATION...

Страница 3: ...TION refer to the instruction manual an improper use may damage the instrument or its components Danger high voltage risk of electric shocks Double insulated meter AC voltage DC voltage 1 1 PRELIMINARY This instrument has been designed for use in environments of pollution degree 2 It can be used for VOLTAGE measurements on installations of CAT III 1000V or CAT IV 600V This instrument is not suitab...

Страница 4: ...category 6 7 4 Measuring circuits OMISSIS Circuits are divided into the following measurement categories Measurement category IV is for measurements performed at the source of the low voltage installation Examples are electricity meters and measurements on primary overcurrent protection devices and ripple control units Measurement category III is for measurements performed in the building installa...

Страница 5: ...lectrically prior to shipment All possible cares and precautions were taken to let you receive the instrument in perfect conditions Notwithstanding we suggest you to check it rapidly eventual damages may have occurred during transport if so please contact the local distributor from whom you bought the item Make sure that all standard accessories mentioned in 6 3 1 are included Should you have to r...

Страница 6: ... DESCRIPTION 4 1 1 Front panel description CAPTION 1 LCD 2 HOLD Key 3 R Key 4 MAX Key 5 SEL Key 6 Backlight Key For HT322 7 Function selector 8 COM input terminal 9 V input terminal for 321 COM and V C F input terminal for HT322 Fig 1 Instrument description ...

Страница 7: ... by meter Press MAX key again or rotate the selector to another position to exit from this function 4 2 4 SEL Key By pressing SEL key the selection of a double measured functions which are present at display is possible In particular this key is active only in position to select between diode test and continuity test or in C F position only HT322 position to select between C and F temperature meas...

Страница 8: ...e value under test is unknown select the highest range 3 Insert the test leads into the jacks the red plug into V for HT321 V C F for HT322 jack and black plug into COM jack 4 Connect the red and black test leads to the positive and negative poles of the circuit under test respectively see Fig 2 The voltage value is displayed 5 If the message O L is displayed select a higher range 6 The symbol on ...

Страница 9: ...key to select the correct range or using the Autorange feature see 4 2 2 If the voltage value under test is unknown select the highest range 3 Insert the test leads into the jacks the red plug into V for HT321 V C F for HT322 jack and black plug into COM jack 4 Connect the test leads to the circuit under test see Fig 3 The voltage value is displayed 5 If the message O L is displayed select a highe...

Страница 10: ... test is unknown select the highest range 3 Insert the test leads into the jack the red plug into V For HT321 V C F For HT322 jack and black plug into COM jack 4 Connect the test leads to the circuit under test see Errore L origine riferimento non è stata trovata The resistance value is displayed 5 Indications as value k or value M respectively for 2k or 2M mean 0 valuek and 0 valueM The zero befo...

Страница 11: ...r polarities indicated in Fig 5 The threshold voltage value expressed in mV under this situation is displayed 4 If the message O L is displayed the diode terminals are reversed the diode P N junction is damaged 5 For Continuity test switch on then push SEL button 6 Insert the test leads into the jack the red plug into V for HT321 V C F for HT322 jack and black plug into COM jack 7 Connect the test...

Страница 12: ...ct C or F measurements 3 Insert the T10 adapter optional accessory into V C F jack and COM jack with respect of red and black colours see Fig 6 4 Connect the optional K probe see 6 3 2 into the adapter with respect the correct positive and negative polarity then reading will be displayed 5 For HOLD function and Maximum value measurement please refer to 4 2 ...

Страница 13: ...ries are to be replaced CAUTION Before replacing the battery disconnect test leads from any energised circuits to avoid electrical shocks 1 Turn off the instrument 2 Disconnect the test leads from the input terminals 3 Remove the fixing screws from the back case and detach it 4 Replace the battery with a new one of the same type refer to Errore L origine riferimento non è stata trovata observing t...

Страница 14: ... 0 001V 1 5 rdg 3dgt 20V 0 01V 200V 0 1V 600V 1 V Resistance Range Resolution Accuracy Max Open Loop Voltage Overload protection 200 0 1 1 0 rdg 8dgt About 3 0V 600VDC Acrms 30sec 2k 0 001k 1 0 rdg 3dgt 20k 0 01k 200k 0 1k 2M 0 001M 20M 10k 3 0 rdg 3dgt Diode Test Range Resolution Max Open Loop Voltage Overload protection 1mV About 1 5Vdc 600Vrms 30sec Continuity Test Range Beeper Max Open Loop Vo...

Страница 15: ...rence temperature 23 5 C 73 41 F Working temperature 5 40 C 23 104 F Relative humidity 80 HR Storage temperature 10 60 C 14 140 F Storage humidity 70 HR This product conforms to the prescriptions of the European directive on low voltage 2006 95 EEC LVD and to EMC directive 2004 108 EEC 6 3 ACCESSORIES 6 3 1 Standard accessories Test leads Batteries B80 carrying case User manual 6 3 2 Optional acce...

Страница 16: ...nsit Repairs made necessary by previous attempts for repair carried out by non skilled or unauthorized personnel Instruments for whatever reason modified by the customer himself without explicit authorization of our Technical Dept The contents of this manual may not be reproduced in any form whatsoever without the manufacturer s authorization Our products are patented and our logotypes registered ...

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