-4 to 140 deg F storage temperature, 0 to 80 percent RH
9 V, NEDA 1604A, IEC 6LR61 9 V alkaline battery power
200 hr battery life (manometer only, backlight off), 12 hr (pressure switch testing at 27 percent pump speed, BL off, approximate - 2-1/2 in WC induced pressure without pump bleed accessory)
15 minutes auto power off
Low battery indication
0.01 in WC resolution
17.4 psi maximum pressure
Compatible with dry, non-corrosive gases
Pressure ports, 2 connectors (P1, P2) for flexible tubing (4-1/2 mm to 8 mm ID)
Pump port, 1 connector (pump) for 5 mm (3/16 in) ID flexible tubing
Lead jacks - 2 banana plug jacks for testing open/close switch status
Correct pressure switch operation is integral to the safety of a furnace environment
SDMN6 is a dual port manometer that also accurately tests pressure switches by simulating a draft with an internal pump
Adjust the pump's speed to create a negative pressure (vacuum)
Red LED indicates when the switch closes, view the closing/opening pressures directly on the LCD
Dual port manometer measures +/- 60 in of water column, high enough for gas pressures
Check building pressurization with static pressure resolution of 0.01 in WC, view P1-P2 in the bottom line of the display for checking pressure differentials
Use the static pressure probes to check for a pressure drop across two points in a duct, is useful for evaluating a blower or finding airflow restrictions in the ductwork
+/- 1.5 percent FS at 32 to 122 deg F accuracy