VDIV10.1, VDIV2.1 Voltage Divider Terminal Input Modules Revision: 5/07 C o p y r i g h t © 1 9 9 6 - 2 0 0 7 C a m p b e l l S c i e n t i f i c , I n c .
Warranty and Assistance The VDIV10.1, VDIV2.1 VOLTAGE DIVIDER TERMINAL INPUT MODULES are warranted by CAMPBELL SCIENTIFIC, INC. to be free from defects in materials and workmanship under normal use and service for twelve (12) months from date of shipment unless specified otherwise. Batteries have no warranty. CAMPBELL SCIENTIFIC, INC.'s obligation under this warranty is limited to repairing or replacing (at CAMPBELL SCIENTIFIC, INC.'s option) defective products.
VDIV10.1, VDIV2.1 Table of Contents PDF viewers note: These page numbers refer to the printed version of this document. Use the Adobe Acrobat® bookmarks tab for links to specific sections. 1. Function........................................................................1 2. Specifications ..............................................................1 2.1 VDIV10.1 .................................................................................................1 2.2 VDIV2.1 ...............................
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VDIV10.1, VDIV2.1 Voltage Divider Terminal Input Modules 1. Function Terminal input modules connect directly to the datalogger's input terminals to provide completion resistors for resistive bridge measurements, voltage dividers, and precision current shunts. Voltage dividers are used to divide a voltage to provide a reduced voltage output that is a fraction of the original voltage. The VDIV10.
VDIV10.1, VDIV2.1 Voltage Divider Terminal Input Modules 90 kΩ H H 10 kΩ 90 kΩ L L G or G 10 kΩ FIGURE 2-1. Voltage Divider Module Schematic 2.2 VDIV2.1 2:1 Resistive Divider Resistors Ratio Tolerance @ 25 °C Ratio Temperature coefficient Power rating Maximum Input Voltage 10 kΩ/10 kΩ ±0.02% 2 ppm/°C 0.25 W 10 volts 3. Wiring Each voltage divider module may be used to measure one differential voltage (Figure 3-1) or two single-ended voltages (Figure 3-2).
VDIV10.1, VDIV2.1 Voltage Divider Terminal Input Modules Datalogger H H L L AG or G or G SENSOR Signal Ground SENSOR Signal Ground Shields FIGURE 3-2. Wiring for Single-Ended Voltage Measurements TABLE 3-1. VDIV10.1 or VDIV2.1 Connections to Campbell Scientific Dataloggers Function Output High Output Low Ground Label/Lead H L G CR10X, CR510 1H 1L AG CR800, CR850, CR3000, CR5000, CR23X, CR1000 1H 1L 21X/CR7 1H 1L 4.
VDIV10.1, VDIV2.1 Voltage Divider Terminal Input Modules The following examples show the measurement instruction for each of the different dataloggers to measure the battery voltage described above. 4.1.1 CR1000, CR800, CR850 Public BattVolt VoltDiff (BattVolt,1,mV2500,1,True ,0,250,0.01,0) 4.1.2 CR3000, CR5000 Public BattVolt VoltDiff (BattVolt,1,mV5000,1,True ,0,250,0.01,0) 4.1.3 CR9000(X) VoltDiff(BattVolt, 1, mV5000, 5, 1, 1, 0, 0, 0.01, 0) 4.1.
VDIV10.1, VDIV2.1 Voltage Divider Terminal Input Modules 4.1.7 21X 1: Volt (Diff) (P2) 1: 1 2: 5 3: 1 4: 1 5: 0.
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