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GENERAL SPECIFICATIONS

Distance between
transmitter and receiver

Transmission frequency

910MHz (CMR35) or 912.4MHz (CMR35A)

Sampling rate

Three times/second with no transmission;
once/sec with transmission

Number of data logs

Unlimited

storable

Operating temperature/

14° to 122°F (-10° to 50°C) at less than 80% relative

humidity

humidity (noncondensing)

Storage temperature/

-4° to 140°F (-20º to 60°C) at less than 70% R.H.

humidity

(noncondensing)

Power supply

Two “AA” Alkaline batteries each for transmitter and
receiver. Alternatively (receiver only), via 3-V AC/DC supply
at 10 mA through 3.5mm stereo mini-plug

Transmitter Receiver

Battery life

Without transmission:

300 hours

With transmission With transmission span

span of 2 seconds: of 2 seconds:
~100 hours ~100 hours

LCD size 2.05(H) x 1.14(W) in. 1.77(W) x 1.04(H) in.

(52 x 29mm) (45 x 26.5mm)

Dimensions 8.66(L) x 2.52(W) 7.05(L) x 2.83(W)

x 1.38(H) in. x 1.26(H) in.
(220 x 64 x 35mm) (179 x72 x32mm)

Maximum clamp opening 0.39 x 1.38 in.

(10 x 35mm)

—

Weight 8.85 oz. (251g), 6.24 oz. (177g),

excluding batteries excluding batteries

333 ft. (100m) maximum; less with obstacles in path and
when either unit is inside metallic structure

CMR35 Manual FINAL4_020911:awb 2/9/11 11:54 AM Page 32

Содержание CMR35 Series

Страница 1: ...UE RMS CLAMP MULTIMETER SYSTEM USER S MANUAL CMR35 SERIES CMR35 910MHz CMR35A 912 4MHz Please read this manual carefully and thoroughly before using this product Transmitter Receiver CMR35 Manual FINAL4_020911 awb 2 9 11 11 54 AM Page 1 ...

Страница 2: ... Transmission Span and ID Code Channel 12 15 Operating the Receiver 16 21 Reading Holding Storing and Recalling Data 16 18 Setting Alarms and Setpoints 18 19 Setting the Clock 20 Setting the Receiver s Transmission Span and ID Code Channel 20 21 Data Logging with a Computer 22 29 Installing the Software and a USB Driver 22 23 Verifying the Installation 23 Using the Software 24 29 Specifications 30...

Страница 3: ...e of 328 ft 100m with no obstructions in between measurements made by the transmitter can be displayed remotely and in real time on the receiver s display Measurements also can be time stamped by the included data logging software and transferred from the receiver to a Windows computer via a USB cable As the computer stores the measurements they can be viewed in the software s Monitor window in re...

Страница 4: ...ads Autoranging Supports setting of Hi and Lo alarm setpoints Tests diodes and performs continuity checks Wireless receiver works at up to 333 ft 100m with no objects between it and transmitter Stores and recalls minimum and maximum readings WHAT S IN THE CASE The two main components of the CMR35 Series system the clamp meter transmitter CMR35T transmitter and the data logging receiver CMR35R rece...

Страница 5: ...Fig 2 shows the symbols used by the transmitter s liquid crystal display as well as their positions 햲 Clamp 햳 Clamp tips opening 햴 Guard ring 햵 Clamp trigger 햶 Function switch 햷 HOLD button 햸 햹 REL SEL button 햺 TX ON button 햻 FUNCTION button 햽 SET button 햾 Nameplate 햿 COM negative or ground input jack 헀 쏋 positive input jack 헁 Liquid crystal display Fig 1 The transmitter s controls indicators and ...

Страница 6: ...age measurement mode Lit in AC voltage measurement mode Lit when measuring negative polarity Autoranging on indicator Lit in continuity check mode Lit in diode check mode Data hold indicator Lit in relative mode or when zeroing display Lit when battery voltage is low Lit in frequency measurement mode Unit of resistance measurement Unit of voltage measurement Unit of current measurement Measured va...

Страница 7: ...the following figure Read the value once it stabilizes It is good practice to measure the current carried by the hot line usually a black or red wire Measurements of current through the return or neutral conductor usually a white wire may be misleading because the return may be used by other circuits To measure the current drawn by an appliance with a fixed power cord General recommends using an i...

Страница 8: ...points whose potential difference you wish to measure WARNING To avoid exposing yourself to a harmful or fatal voltage and damaging the transmitter make sure that the potential you are attempting to measure is less than 600VDC As in current measurement mode the CMR35T automatically chooses the narrowest measurement range that includes the tested value The five available full scale ranges are 0 to ...

Страница 9: ...en which you wish to measure the resistance To avoid affecting the measurement make sure not to touch the metal tip of either probe The CMR35T automatically chooses the narrowest measurement range that includes the tested resistance value The six available full scale ranges are 0 to 400Ω 0 to 4kΩ 0 to 40kΩ 0 to 400kΩ 0 to 4MΩ and 0 to 40MΩ Read the measured value once it stabilizes When you have f...

Страница 10: ...ts most sensitive modes Move the function switch to the Ω position and press the REL SEL button until the symbol appears at the lower left of the display Then plug the rubber covered end of the black probe into the COM jack of the transmitter and the rubber covered end of the red probe into the jack Then touch the metal ends of the black and red probes to the points between which you wish to check...

Страница 11: ...tive measurements can be carried out indefinitely Pressing the REL SEL button when the transmitter is operating in AC or DC current measurement mode also deactivates the autoranging function This causes the AUTO RANGE text to disappear from the transmitter s display and sets the transmitter s measurement range to a fixed value the lowest full scale value that can accommodate the value being measur...

Страница 12: ...seconds to enter transmission span selection mode Once in this mode briefly press but do not hold the SET button as many times as needed to set the transmission span duration to 2 10 30 60 or 120 seconds Then save the setting by pressing the FUNCTION button for two seconds to return to measuring mode The next step is to set the ID code Channel of the transmitter to match the ID code Channel of the...

Страница 13: ...o operating the receiver familiarize yourself with Figures 3 and 4 Fig 3 shows the controls indicators and jacks of the receiver Fig 4 shows the symbols used by the receiver s liquid crystal display and their positions CMR35 Manual FINAL4_020911 awb 2 9 11 11 54 AM Page 13 ...

Страница 14: ...red value 햷 MAX MIN button Main use is for entering maximum minimum measurement mode Secondary function indicated by stencil at right of button is to change digits of clock and alarm settings 햸 ALARM button 햹 CLOCK SET button 햺 SEARCH button Main use is for enabling manual searching Secondary function indicated by MUTE ALARM stencil below button is to mute setpoint alarms 햻 CHANNEL button 햽 USB ja...

Страница 15: ...e Lit in continuity check mode Display reading Lit when receiver s batteries need replacing Lit when transmitter s batteries need replacing Lit when reading memorized maximum or minimum value Lit when measurement is held Lit when USB connection to PC is enabled Lit in alarm mode When blinking indicates measured value exceeds alarm setpoint Indicates displayed value is transmission span When multip...

Страница 16: ...onds READING HOLDING STORING AND RECALLING DATA To use the button to recall stored maximum or minimum values follow the instructions embedded in the next two figures To call up a display without stored MAX MIN data To call up a display with stored MAX MIN data 16 CMR35 Manual FINAL4_020911 awb 2 9 11 11 54 AM Page 16 ...

Страница 17: ... current reading To enter MAX HOLD mode and recall MAX measurements To use the button to store maximum and minimum values follow the instructions embedded in the next figure 17 CMR35 Manual FINAL4_020911 awb 2 9 11 11 54 AM Page 17 ...

Страница 18: ... the clock and alarm refer to the figure below When the digit is blinking press the key to move to the next digit SETTING ALARMS AND SETPOINTS To use the button follow the instructions embedded in the following sets of figures To set the alarm 18 CMR35 Manual FINAL4_020911 awb 2 9 11 11 54 AM Page 18 ...

Страница 19: ...ress button to choose or symbol Press button 햴 Set alarm setpoint Press button and use button to set value Press button 햵 Move position of decimal point Press button to move position of decimal point 19 Press button 햶 Select unit Press button to select V A or mV unit Press ALARM button or wait 10 seconds 햷 Save setting Press ALARM button or wait 10 seconds to save ALARM setpoint setting Then retur...

Страница 20: ...N AND ID CODE CHANNEL These parameters of the receiver are set in the same way that they were set for the transmitter Follow the instructions embedded in the next two figures Transmission span setting 20 Press SEARCH button and hold for two seconds to enter ID code selection mode Press SEARCH button again to enter transmission span selection mode Press HOLD MAX H button as many times as needed to ...

Страница 21: ...ed ID Code Channel on or off Press CHANNEL button to switch to different ID code Channel Press HOLD MAX H button to switch selected ID code Channel on or off Press SEARCH button and hold for two seconds to save setting and return receiver unit to measuring mode ID code Channel from 1 to 6 CMR35 Manual FINAL4_020911 awb 2 9 11 11 54 AM Page 21 ...

Страница 22: ... Security Warning Respond to the question Do you want to run or save this file the 20 0KB install exe file by clicking Run 5 The next screen will be a Windows User Account Control dialog box Respond to the question Do you want to allow the following program from an unknown publisher to make changes to your computer by clicking Yes 6 The dark blue Wireless clamp meter Setup screen that appears next...

Страница 23: ... into a USB port on your computer 2 Power on the transmitter and receiver 3 Make sure that the jaws of the transmitter clamp are closed and not enclosing a current carrying conductor 4 On the transmitter set the function switch to the position and press the TX ON button 5 Note that the transmitter s display is reading stray voltages of less than 1V Confirm that the receiver s display is tracking t...

Страница 24: ...iew menu section cover the features of the software s three main windows the Monitor the Table and the Graph The File menu Note Since the main display window can only show data for one channel to save data for another channel the display must be configured to show it To configure the system and software to log and display data from more than one transmitter follow the instructions for the Monitor ...

Страница 25: ...The Edit menu The View menu The four options above also are available from the toolbar below the main menu as shown below 햲 The Table window 25 CMR35 Manual FINAL4_020911 awb 2 9 11 11 54 AM Page 25 ...

Страница 26: ...itor window will display only if the three parameters in the bottom row V P F Power Factor and Unit Price have been entered using the Setup menu If you do not know the P F of the machine whose power consumption you wish to track assume it is 1 0 and enter that value If you know the machine s P F enter it 0 8 is the value shown in the screen shot above 26 CMR35 Manual FINAL4_020911 awb 2 9 11 11 54...

Страница 27: ...onditions are met the Electric Power Cost Monitor window will automatically be displayed and updated Unlike the Monitor Record and Graph windows the Electric Power Cost Monitor window cannot be minimized maximized or adjusted in size The Record menu 햲 Connect When checked indicates interface to receiver is enabled 햳 Start When checked indicates data from transmitter is being logged 햴 Pause When ch...

Страница 28: ...The Option menu 28 Table tab Select table background color and type of grid line flat inset or raised CMR35 Manual FINAL4_020911 awb 2 9 11 11 54 AM Page 28 ...

Страница 29: ...onitor windows to default positions The Window menu The Help menu Open Wireless Clamp Meter User s Manual Windows Windows 7 Windows Vista and Windows XP are registered trademarks of Microsoft Corporation CMR35 Manual FINAL4_020911 awb 2 9 11 11 54 AM Page 29 ...

Страница 30: ...f reading 5 digits DC Voltage Measurement Range Resolution Accuracy Input impedance Maximum input voltage 400mV 0 1mV 0 75 of 7100MΩ 600V reading 3 digits 4V 0 001V 11MΩ 40V 0 01V 400V 0 1V 600V 1V AC Voltage Measurement Range Resolution Accuracy Input impedance Maximum input voltage 4V 0 001V 1 5 rdg 11MΩ 40V 0 01V 400V 0 1V 1 5 rdg 600V 1V 30 1 5 of reading 10 digits 1 of reading 3 digits 600Vrm...

Страница 31: ...oltage 1 000V 0 001V 10 of reading Open circuit 600V 5 digits voltage is 1 5V Frequency Measurement Range Resolution Accuracy Remarks Maximum input Voltage 5Hz 0 001Hz 50Hz 0 01Hz 500Hz 0 1Hz 5kHz 0 001kHz 50kHz 0 01kHz 100kHz 0 1kHz For measurements below 64 F 18 C or above 82 F 28 C decrease stated accuracy by an additional 10 per 1 C change 31 1 of reading 5 digits Open circuit voltage is 0 4V ...

Страница 32: ...eceiver Alternatively receiver only via 3 V AC DC supply at 10 mA through 3 5mm stereo mini plug Transmitter Receiver Battery life Without transmission 300 hours With transmission With transmission span span of 2 seconds of 2 seconds 100 hours 100 hours LCD size 2 05 H x 1 14 W in 1 77 W x 1 04 H in 52 x 29mm 45 x 26 5mm Dimensions 8 66 L x 2 52 W 7 05 L x 2 83 W x 1 38 H in x 1 26 H in 220 x 64 x...

Страница 33: ...ound to comply with the limits for a Class B Digital Device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction may cause harmful interference to radio communicati...

Страница 34: ...an extended period of time several months If either the transmitter or receiver needs cleaning use a soft dry cloth Never use organic solvents to clean the housing or display OPTIONAL ACCESSORIES The only accessory for the CMR35 avaliable from General is an AC line splitter General p n ACL10 WARRANTY INFORMATION General Tools Instruments General s CMR35 Wireless Data logging Clamp Multimeter Syste...

Страница 35: ...to obtain an RGA Return Goods Authorization number before forwarding the unit via prepaid freight to the atten tion of our Service Center at this address General Tools Instruments 80 White Street New York NY 10013 212 431 6100 Remember to include a copy of your proof of purchase your return address and your phone number and or e mail address 35 CMR35 Manual FINAL4_020911 awb 2 9 11 11 54 AM Page 3...

Страница 36: ...LL FREE 800 697 8665 e mail sales generaltools com www generaltools com CMR35 Series User s Manual Specifications subject to change without notice 2011 GENERAL TOOLS INSTRUMENTS NOTICE WE ARE NOT RESPONSIBLE FOR TYPOGRAPHICAL ERRORS MAN CMR35 2 9 11 CMR35 Manual FINAL4_020911 awb 2 9 11 11 54 AM Page 36 ...

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