Elma 30C Скачать руководство пользователя страница 9

 

Auto Ramping the mA Output 

Auto  ramping  allows  you  to  continuously  apply  a  varying  current  from  the 

Calibrator  to  a  passive  (sourcing)  or  active  (simulate)  loop.  Your  hands  remain 

free to rest the transmitter’s response. 

Press                    to enter the Auto Ramp mode and step to a ramp type. 

The Calibrator applies or controls a continuously repeating mA signal a 4-20mA 

span in one of three ramp types: 

SLOW (            ) 0% to 100% to 0% smooth ramp over 50 sec. 

FAST (              ) 0% to 100% to 0% smooth ramp over 20 sec. 

STEP (          ) 0% to 100% to 0% stair-ramp in 25% steps, pausing 5 sec at each 

step. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Replacing the Battery 

  Warning

 

To  avoid  false  readings,  which  could  lead  to  electric  shock  or  injury, 

replace  the  battery  as  soon  as                  (low  battery  indicator)  appears  on 

the display. 

Use only a single 9V battery, properly installed, to power the Calibrator. 

The  Calibrator  uses  a  single  9V,  alkaline  battery  (ANSI/NEDA  1604A  or  IEC 

6LR61). To replace the battery: 

1. Press            to turn the Calibrator OFF. 

2. Remove the test leads from the terminals. 

3. Remove the holster. 

4. Lift off the bottom case of the Calibrator. 

5. Remove the battery. 

6. Insert the replacement battery and restore the battery door. Make sure it 

is securely in place. 

 

 

 

 

 

 

 

 

 

 

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Содержание 30C

Страница 1: ...Loop Calibrator Instruction Sheet ...

Страница 2: ...s that can lead to electric shock l Remove test leads from the Calibrator before opening the case or battery door Symbol Symbol Meaning Earth ground Caution Important information Refer to instruction sheet Double insulated Battery Conforms to European union requirements Direct current 3 ...

Страница 3: ...to 24mA and 4 to 20mA current loops and instruments In SOURCE mode the Calibrator supplies the current In SIMULATE mode the Calibrator simulates a 2 wire transmitter in an externally powered current loop Changing the mA Output Span The Calibrator has two mA output spans l 4mA to 20mA 0 to 100 default l 0mA to 24mA 25 to 125 optional Sourcing mA Use SOURCE mode to supply current to a passive circui...

Страница 4: ...itter at the same time with carry a DMM l Innovation output adjustment dial with 1mA and 100mA resolution l Storage temperature 40 C to 60 C l Operating temperature 10 C to 55 C l Power requirements Single 9V battery ANSI NEDA 1604A or IEC 6LR61 l Battery life typical Approx 15 hours l Size 88mm W 178mm L 33mm H 3 5 in W 7 in L 1 3 in H l Weight 300g with holster 14 Simulating a Transmitter When s...

Страница 5: ...atement for warranty terms conditions and product return information If the warranty has lapsed the Calibrator will be repaired and returned for a fixed fee Cleaning Periodically wipe the case with a damp cloth and detergent do not use abrasives or solvents Calibration Calibrate the Calibrator once a year to ensure that it performs according to its specifications 12 Measuring dc mA with LOOP POWER...

Страница 6: ...e Calibrator before use Do not use it if appears damaged l Check the test leads for continuity damaged insulation or exposed metal Replace damaged test leads l Never apply more than 40V between any two terminals or between any terminal and earth ground l Use the proper terminals mode and range for your measuring or sourcing application l To prevent damage to the unit under test put the Calibrator ...

Страница 7: ...rrent in 1mA steps simply turn the knob l To adjust the current in 200mA steps push in and turn the knob Press to step the current up 25 of full scale 20mA At full scale press to step the current down 25 of full scale Press simultaneously to enter the Auto Ramp mode and select a ramp form A continuously supplied or controlled mA ramping signal is produced in one of three ramp forms slow fast or st...

Страница 8: ...0 05 rdg 5dgts up to 15V non specification 20V 1 TX SIMULATOR 2wire transmitter simulation External excitation voltage 12V min 30V max The current sink levels are adjustable with accuracies as in the source OUTPUT RAMP Current Ramp 4 to 20 on all ranges Ramp times 50sec 20sec 5sec 3 ramp type Ramp operation is also available in TX SIMULATOR function 15 ...

Страница 9: ...0 to 100 to 0 stair ramp in 25 steps pausing 5 sec at each step 8 Replacing the Battery Warning To avoid false readings which could lead to electric shock or injury replace the battery as soon as low battery indicator appears on the display Use only a single 9V battery properly installed to power the Calibrator The Calibrator uses a single 9V alkaline battery ANSI NEDA 1604A or IEC 6LR61 To replac...

Страница 10: ...MEASURE mA is displayed 2 Touch test lead probes to the circuit across the load or power source as shown below 10 Measuring dc Volts Caution To prevent damage to the unit under test ensure that the Calibrator is in the correct mode before connecting the test leads To measure dc Volts 1 Press to step to MEASURE mode MEASURE V is displayed 2 Touch test lead probes across the load or power source 11 ...

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