Delta NANOTRACE DF-745 Instruction Manual download pdf (Page 13)

Specifications DF-745 9

3 Specifications

3.1 Moisture

Lowest Detection Level (LDL): 2 ppb @ Constant Conditions

Resolution: Analytical (Smallest Detectable Change): .5 ppb

Display: 100 ppt

Accuracy: Greater of ±3% of reading or ±1 ppb @ Constant Conditions

Speed of Response: Typically 10 minutes to reach 90 percent of an upward step change

Upset Recovery Time: Typically less than 5 minutes from a high ppb upset to within 10

ppb of the previously stable reading.

Range: 0-20 ppm

Background Gas Compatibility: All inert and passive gases including N

, H

, He, Ar

and O

3.2 General

Warranty: One year from ship date on the entire instrument. See Warranty section on

page 81.

Power Requirements: 100 to 120 VAC, 50/60 Hz, standard, 5 Amps

200 to 240 VAC, 50/60 Hz (optional), 2.5 Amps

Display: 7.4 inch VGA Color (640X480)

Ambient Operating Temperature: 10° C to 40° C (50° F to 105° F)

Output Signals:

Analog Output: User Scalable: 0-2 ppb to 0-20 ppm Moisture

0-1, 0-2, 0-5, or 0-10 VDC (minimum load resistance 1K)

Isolated 4-20 mADC, 1K ohm loop resistance max (28V Compliance voltage provided)

Digital Communications: Two-way RS-232 or RS-485 set at the time of order

Operating Inlet Pressure: 5 to 30 psig (0.3 to 2 bar)

Flow Rate: 0.5 – 4.0 slpm N

Sample Temperature: 10° C to 80°C (50° F to 176° F)

EMI Sensitivity: Tested to standards EN61000-3-3 and EN61326-1

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Delta NANOTRACE DF-745 Instruction Manual Page 13