Specifications - Extech Instruments 406800 User Manual

Introduction
Congratulations on your purchase of the Extech 406800 Differential Pressure Manometer.
This device measures Gauge/Differential Pressure from 0 to 138.3 inH
It features 11 selectable units of measure: inH
2
ftH O, cmH O, kg/cm . Additional features include: Data Hold, Auto Power Off disabled,
2 2
and an RS-232 for capturing readings to a PC using optional software (407752). Careful
use of this meter will provide years of reliable service.

Specifications

Function
inH O
2
psi
bar
mbar
kPa
inHg
mmHg
2
ozin
ftH O
2
cmH O
2
2
kgcm
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
Note: Exceeding maximum pressure will cause sensor damage.
O, psi, bar, mbar, kPa, inHg, mmHg, oz/in
2
Range
±138.3inH O
2
±5.000psi
±0.344bar
±344.7mbar
±34.47kPa
±10.18inHg
±258.5mmHg
2
±80.00oz/in
±11.53ftH O
2
±350.1cmH O
2
2
±0.351kg/cm
Dual LCD
±0.3%FS
±0.2% to 0.5% FS
±0.3%FS
±1.1%FS (+5 to -4psi) (-4 to -5psi unspecified)
Two metal 4.8mm ports for flexible tubing
20psi
0.5 seconds typical
Air or Non-Corrosive Gases
Yes
Err.1
Err.2
º
32 to 122 F (0 to 50
º
32 to 122 F (0 to 50
º
-4 to 140 F (-20 to 60
1 x 9V battery
7.1 x 2.8 x 1.1" (182 x 72 x 30mm); 7.7 oz. (220g)
2
O (inches of water).
2
Resolution
0.1inH O
2
0.001psi
0.001bar
0.1mbar
0.01kPa
0.01inHg
0.1mmHg
2
0.01oz/in
0.01ftH O
2
0.1cmH O
2
2
0.001kg/cm
º
C)
º
C); < 80% RH non-condensing
º
C); <80% RH non-condensing
406800 V2.1 11/06
2
,