Dwyer Instruments CSG Operation & User’s Manual

0.0 to 20.0mA DC in 1 mA steps 0.0 to 10.0V DC in 1V steps Current +/- 0.05mA DC Voltage: +/- 0. 0SV DC Load Impedance Current: 300 ohms maximum Voltage: 1000 ohms minimum External mA Transmitter Source Voltage: 12V minimum to 30V peak maximum RAMPING Manual Auto Values: Step Time: DISPLAY Anywhere in range User adjustable Min. & Max. values anywhere within range User adjustable from 1 to 20 seconds, in 1 second increments Numerical LCD, 00.0 to 99.9, 0.59"H (15mm) Annunciators "RAMP", "OVER LOAD"', "mA", "V'. ''TIME". and symbol for low battery Blue Backlight Energized with momentary side switch ENVIRONMENT Operating POWER 9V Battery Low Battery 120 V AC 32 to 122°F (0 to 50°C) NEDA1604. JIS006P. or IEC6F22 (Duracell MN1604 or equivalent) Up to 30 hours continuous use Indicator comes on below approximately 7 volts Plug-in 9V DC output supply for bench-top use Auto Power Off User adjustable delay time from MECHANICAL Dimensions Weight 1 to 20 minutes after last key press Can also be disabled 5.5"H x 2S-W x 1.4"0 (140H x 63.5W x 35.60 mm) 6 oz (170 g) USER'S GUIDE ModelCSG Current & Voltage Calibrator l'lw9e 20□ RAMP P6'ffl mA • ¥i1.1:: -----✓) • • • mA mA ·,n.ilb .. i.;• ;.,.,,i. ··, ,·pq· ;"4J,1•.,1 .,. .. \· ! Copyright @ 2006. All rights reserved including the right of reproduction in whole or in part in any form Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 TestEquipmentDepot.com

plugged into the EXT POWER jack. The AC adapter disconnects the internal battery. To turn the CSG on, press and hold the upper red ON/OFF but­ ton for at least 2 seconds. The LCD annunciators will cycle and then hold steady when the CSG is turned on. To tum off, press and hold the ON/OFF button for 5 seconds until "TIME" annunciator is displayed. SELECTING OUTPUT MODE Plug the test lead assembly into the appropriate output jack as shown below. If the lest leads are plugged into the mA XMTR or mA OUTPUT jack, or no leads are plugged in. ·mA" will tum on. If the load resistance is too high or the leads are left open, "OVERLOAD" will tum on. If the leads are plugged into the VOLTS OUTPUT jack. ··v will turn on. If the load resistance is loo low or the leads are shorted. "mA" may stay on or turn on. Fig 1. Voltage Output Fig. 2 mA SourƘe Output LOAD LOAD + + ._ ______ ....., _ __, VOLTS BLACK BLACK mA OUTPUT Fig 3. Simulate a 2-Wiro mA T ransmitter Loop With External 12 to 30V DC Supply. A similar connection can be used to extend output range of CSG beyond 300 ohms A 24V source will allow CSG to source into an impedance of >1000 ohms. EXTERNAL LOOP SUPPLY + 12 to 30V _ mA XMTR + LOAD BLACK MANUAL SELECTION OF OUTPUT LEVEL To increase the output. press the 'fr key. To reduce the output, press the \ key. New output value will be displayed on the display. AUTO RAMPING The output is preprogrammed lo ramp between 4 to 20 mA(or 2 to 10V) and back in 1.0 mA(or 1.0 V) steps, with 5 seconds between each step. See below to change the ramp end points and step time interval. To start ramping the output, press the RAMP/TIME key for 2 seconds. "RAMP" will tum on and the output will start ramping within the minimum and maximum values programmed into the CSG. It will start at the output value manually set on the CSG before the key is pressed. To stop the ramping and return to manual mode. press the RAMP/TIME key again. CHANGING THE AUTO RAMPING END POINTS AND STEP TIME Press and hold the RAMP/TIME key. and immediately (within 2 seconds) press the -0- key without releasing the RAMP/TIME key until "RAMP" and "TIME· tum on. "mA" will tum off. Set the time duration for eacJ;i step increment from 1.0 to 20.0 seconds, in 1.0 second increments by using the 'fr and \ keys. To store the desired time interval. press the RAMP/TIME key again. "TIME" will turn off and the appropriate "mA" or -V will flash. "RAMP" will remain on. Set the first end point by using the 'fr and \ keys. To store the first end point. press the RAMP/TIME key again. The appropriate "mA" or ·v· and "RAMP" will flash. Set the second end point by using the 'fr and \ keys. To store the second end point and exit the programming mode, press the RAMP/TIME key again. T he second value stored will be displayed along with the appropriate "mA" or ·v. SETTING THE AUTO POWER OFF DELAY TIME With the unit ON, press and hold the RAMP/TIME key, and im­ mediately (within 2 seconds) press the 'fr key without releasing the RAMP/TIME key until "TIME" turns on. All other annunciators are off. Set the time delay from the last key press until the unit automatically turns OFF by using the 'fr and -0- keys The time delay can be set from 1 O to 20.0 minutes In 1.0 minute ,ncremenls. If the delay time Is set lo 00.0 minutes. the Auto Power Off Delay function is disabled This is useful when the unit is used on a bench with the AC adapter To store the desired time delay. press the RAMP/TIME key again ... TIME" will turn off and the appropriate "mA" or ·v· will turn on Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 TestEquipmentDepot.com