406850 Datasheet, PDF (2/6 Pages) Extech Instruments Corporation. – Differential Pressure Manometer

Introduction
Congratulations on your purchase of the Extech 406850 Differential Pressure Manometer.
This device measures Gauge/Differential Pressure from 0 to 55.40 inH₂O (inches of water).
It features 5 selectable units of measure: inH₂O, psi, bar, mbar, mmH₂O. Additional features
include: Data Hold, Auto Power Off disable, and an RS-232 interface for capturing readings
to a PC using optional software (407752). Careful use of this meter will provide years of
reliable service.
Specifications
Function
inH₂O
psi
bar
mbar
mmH₂O
Range
±55.40inH₂O
±2.000psi
±0.137bar
±137.8mbar
±1407mmH₂O
Resolution
0.01inH₂O
0.001psi
0.001bar
0.1mbar
1mmH₂O
Display
Accuracy
Repeatability
Linearity/Hysteresis
Combined Accuracy
Connectors
Maximum Pressure
Response Time
Compatibility
Low Battery Indicator
Overrange Indicator
Underrange Indicator
Compensated Temperature Range
Operating Conditions
Storage Conditions
Power Supply
Dimensions / Weight
Dual LCD
±0.3%FS at ±25^ºC
±0.2% to 0.5%FS
±0.2%FS
±1.0%FS
Two metal 4.8mm ports for flexible tubing
20psi
0.5 seconds typical
Air or Non-Corrosive Gases
Yes
Err.1
Err.2
32 to 122^ºF (0 to 50^ºC)
32 to 122^ºF (0 to 50^ºC); < 80% RH non-condensing
-4 to 140^ºF (-20 to 60^ºC); <80% RH non-condensing
1 x 9V battery
7.1 x 2.8 x 1.1” (182 x 72 x 30mm); 7.7 oz. (220g)
Note: Exceeding maximum pressure will cause sensor damage.
2
406850 V2.0 6/06