Technical Data Sheet No. TD0003 Rev.
Aalborg7 is a registered trademark of Aalborg7 Instruments & Controls. NOTE: Aalborg7 reserves the right to change designs and dimensions at its sole discretion at any time without notice. For certified dimensions please contact Aalborg7.
TABLE OF CONTENTS (a) UNPACKING THE TOTALIZER.................................................. 1 a.1 Inspect Package for External Damage.............................................. 1 a.2 Unpack the Totalizer......................................................................... 1 a.3 Returning Merchandise for Repair.................................................... 1 (b) DESCRIPTION.....................................................................2 (c) FEATURES....................................
(a) UNPACKING THE TOTALIZER a.1 Inspect Package for External Damage Your Totalizer was carefully packed in a sturdy cardboard carton, with antistatic cushioning materials to withstand shipping shock. Upon receipt, inspect the package for possible external damage. In case of external damage to the package contact the shipping company immediately. a.2 Unpack the TOTALIZER Open the carton carefully from the top and inspect for any sign of concealed shipping damage.
(b) DESCRIPTION MODEL TOT-10: Totalizer designed to be used with existing models of GFM mass flow meters and GFC mass flow controllers (calibrated for given flow rate specified on the back label). It can be connected to the modular jack instead of the LCD display, or optionally with the additional connector (CBLTOT-10) in parallel with the LCD display. Mechanically TOT-10 can be installed on the top of the LCD display with two brackets and screws (supplied only for model TOT-10).
(d) SPECIFICATIONS d.1 General Attributes INPUT ANALOG RANGE: 5 to 10 VDC or 0 to 5 VDC jumper selectable. POWER SUPPLY REQUIREMENTS: 12Vdc, 100mV Pk-Pk, less than 0.5 watts. (OPTIONAL, require only for TOT-05). POWER CONSUMPTION: 10 mA at 12 VDC, less than 0.125 watts. ACCURACY: ±0.5% of full scale. TEMPERATURE STABILITY: ±200 ppm/ FC in the range of 5 FC to 50 FC. DISPLAY: 7 digit, 8-mm figure height. READING BACKUP: 20 years lithium battery, no external power required.
(e) ELECTRICAL CONNECTIONS e.1 Connector Pin Assignments All connections are made at connector J1 (telephone modular plug). Models TOT-10 can be connected directly to the GFM or GFC. Model TOT-05 have to be connected with optional cable with stripped wires as described below: T1 (Yellow) T2 (Green) T3 (Black) T4 (Red) - Analog input 0 to 5Vdc from transducer. 5.0Vdc reference input (used only for TOT-10). 12Vdc Power Supply input. Power supply return (GND), analog input return (Common).
Improper setting of jumpers may result in incorrect CAUTION: operation of the unit and could cause damage to the Totalizer. (f) CALIBRATION PROCEDURE f.1 Equipment Required for Calibration You will need: 1. Two 4-1/2" digit Digital Multi Meters set to the selected analog output range and frequency. 2. For TOT-10: GFM mass flow meter or GFC mass flow controller with power supply. 3. For TOT-05: Any transducer with 0-5 Vdc output and time based engineering units and +12Vdc power supply. f.
Choose from TABLE 1 the option which better matches your case: TABLE 1 1 2 3 4 If Totalizer has label with The Totalizer is ready for use and corresponding flow rate on the back does not require any adjustment. and you do not plan to change the full scale range. If Totalizer has label with corresponding flow rate on the back and you do plan to change the full scale range. Refer to f.4 RE-SCALING OF TOTALIZER If Totalizer does not have label Refer to f.
f.3 f.4 GAIN Adjustment (required only if potentiometer R12 GAIN was accidentally readjusted) 1. Carefully remove front panel from the Totalizer. 2. Set potentiometer R8 (SCALE) into completely up position (CW direction). 3. Connect the Totalizer to the transducer (see e.1). 4. Using a digital multimeter connected to the 0 to 5 Vdc signal at the output of transducer, set the output rate on the transducer to full scale (5 Vdc).
2. Choose scale factor Vs and division factor D from Table 2 which correspond to your previously calculated Fs. 3. Connect the Totalizer to the transducer (see e.1) 4. Carefully remove front panel from the Totalizer. Using the digital multi meter connected to the 0 to 5 Vdc signal at the output of transducer, set the flow rate on the transducer to the full scale flow (5 Vdc).
(g) TROUBLE SHOOTING Your Totalizer was thoroughly checked at numerous quality control points during and after manufacturing and assembly operations. It was calibrated in accordance to conditions for a given. It was carefully packed to prevent damage during shipment.
APPENDIX 1 GLOSSARY Fm Full scale range in [UNIT/MINUTE] for which your transducer has been calibrated (usually shown on the front label). If engineering unit is not minute based it has to be converted. For example 300 SCFH has to be converted to 300/60 = 5 cubic feet/minute. Fs Full scale range specified in UNIT/SEC. Vs SCALE FACTOR in kHz which corresponds output frequency for given flow rate (see Table 2).
APPENDIX 2 COMPONENT DIAGRAM R19- OFFSET ADJUSTMENT R12- GAIN ADJUSTMENT R8-SCALE ADJUSTMENT 11
APPENDIX 3 DIMENSIONS TOTALIZER NOTE: Aalborg7 reserves the right to change designs and dimensions at its sole discretion at any time without notice. For certified dimensions please contact Aalborg7.
APPENDIX 4 WARRANTY Aalborg7 Mass Flow Systems are warranted against parts and workmanship for a period of one year from the date of purchase. Calibrations are warranted for up to six months after date of purchase, provided calibration seals have not been tampered with. It is assumed that equipment selected by the customer is constructed of materials compatible with gases used. Proper selection is the responsibility of the customer.
