CM3920 3 1/2 Digits Multi Function Multimeter with ...

1 CALTEK INDUSTRIAL( )LTD. CM3920 CM3920 . 3 1/2 Digits Multi Function Multimeter with Capacitance and Temperature Measurement Features: z 3 Digits LCD Display z Max. reading 1999. z DC voltage 200mV up to 600V. z AC voltage 2V up to 600V. z DC current 2mA up to 20A. z AC current 200mA/20A. z Resistance 200 up to 200M . z Capacitance 2000pF up to 20 F. z Transistor test z Temperature measurement z Diode test z Continuity test z Low battery warning display z Power single 9V NEDA 1604. z Conform to IEC1010/EN61010. CAT II, CE-EMC & LVD. General Specifications Display : 3 1/2 Digits LCD with max. reading of 1999. Polarity : Automatic, (-) negative polarity indication.

2 Zero adjustment : Automatic. Over range indication : Only the MSD 1 is displayed. Power : Single, standard 9 volt battery NEDA 1604, JIS 006P, IEC6F22. Dimension : 88 (W) x 172 (H) x 37 (D) mm. Weight : Approx. 340 g (including battery). Due to our policy of continual product development, we reserve the right to amend the specifications of all mentioned products without prior notice. Page 1 of 4. CALTEK INDUSTRIAL( )LTD. CM3920 Electrical Specification Accuracies are (% of reading + number of least significant Digits ) at 23 C 5 C, less than 75%RH. DC voltage measurement Overload Range Resolution Accuracy Input impedance Protection 200mV 2V ( +.)

3 20V 1dgt) 600V. 10M . 200V DC/ACrms ( +. 600V 1V. 2dgt). AC voltage measurement Frequency Input Overload Range Resolution Accuracy range impedance Protection 2V ( +. 20V 3dgt) 600V. 200V 40~400Hz 10M . DC/ACrms 600V 1V ( +. 3dgt). DC current measurement Range Resolution Accuracy Voltage drop Overload Protection 2mA ( +. Fast 20mA 1dgt). 200mA/250V. ( +. 200mA 200mV Fused 1dgt). ( + Unfused (up to 20A 5dgt) 15sec.). Due to our policy of continual product development, we reserve the right to amend the specifications of all mentioned products without prior notice. Page 2 of 4. CALTEK INDUSTRIAL( )LTD. CM3920 AC current measurement Range Resolution Accuracy Frequency Voltage Overload range drop Protection Fast ( +.

4 200mA 200mA/250V. 3dgt). 40~400Hz 200mV Fused ( + Unfused (up to 20A 7dgt) 15sec.). Resistance measurement Range Resolution Accuracy Overload Protection 200 ( + 3dgt). 2k . 20k . ( + 1dgt) 250V DC/AC rms 200k . < 30sec. 2M . 20M ( + 2dgt). 200M ( + 10dgt). Capacitance Measurement Overload Range Resolution Accuracy Protection 2000pF 1pF. 20nF 250V DC/AC rms 200nF ( Read. + 5dgt). <30 sec. 2 F F. 20 F F. Transistor Test Open circuit Overload Range hFE value Base current voltage Protection 250V DC/AC rms hFE 0-1000 Approx. 10 A Approx. <30 sec. Due to our policy of continual product development, we reserve the right to amend the specifications of all mentioned products without prior notice.

5 Page 3 of 4. CALTEK INDUSTRIAL( )LTD. CM3920 Temperature Internal Probe Range Resolution Accuracy Overload Protection 250V DC/AC rms 0 40 1 (2dgt). <30 sec. Temperature K-type Probe Range Resolution Accuracy Overload Protection -50 400 ( Read. + 3dgt) 250V DC/AC rms 1 . 401 1000 ( Read. + 15dgt) <30 sec. Diode Test Range Test current Max open circuit voltage Overload Protection Approx. 250V DC/AC rms 1mA <30 sec. Continuity Test Range Test current Max open circuit Overload Protection voltage Approx. 1mA 250V DC/AC rms <30 sec. (*) The instrument emits a sound signal when the resistance value is lower than 30 . CALTEK INDUSTRIAL ( ) LTD. Hong Kong: Singapore : China (Guangzhou): Flat E, 12/F.

6 , Effort Industrial Bldg., Level 15, Suite 27, 4/F., Li Zhi Wan, Zhen Xing Road, 2-8 Kung Yip Street, Kw ai Chung, Prudential Tower, 30 Cecil Street, Dagang Town, PanYu, N .T., Hong Kong Singapore 049712 GuangZhou, China. Tel: (852) 2401-1222 Tel: (65) 6232 2903 Tel: (86-20) 3493 6162. Fax: (852) 2420-3472 Fax: (65) 6232 2888 Fax: (86-20) 3493 6163. Email: .hk Email: sales_sg@ .hk Email: Due to our policy of continual product development, we reserve the right to amend the specifications of all mentioned products without prior notice. Page 4 of 4.