Precision Digital Manometers - Differential and Absolute
with built in data logger and analogue output

Differential manometer, built in sensor
Selectable units mbar, bar, kPa, MPa, mmHg, PSI, mm H2O
Data Logging
Analogue Output
Several Models cover wide range
Absolute pressure version 1300 mBar
High Speed Sampling
Alarms
Intrinsically Safe Ex option
Digital Interface USB connection
Portable battery powered
Auto switch off power saver
Backlit LCD Display
Calibration Certificate
ISO quality assurance
2 year warranty
Intrinsically safe option ->
EPS 09 ATEX 1 227 X, II 2 G Ex ib IIC T4

GMH Series robust portable high precsion manometers for measuring differential gauge and vacuum. Wide range of applications with high accuracy. Tough ABS casing. Applications include Gas flow measurement Tank level monitoring Laboratory/Chemical/Pharmaceutical, Engineering, Environmental, HVAC, Maintenance, Diagnostics, leak checking. Built in data logger an recorded data on the fly or be programmed for automatic data collection. Eight different ranges to choose from see below. The image shows a differential manometer with two input connections. The absolute pressure version has only one input and will normally show atmospheric pressure in the absense of an input. (The absolute pressure reading can be compensated to sea level )

Common Specifications

Functions	Pressure difference, Tare (zero) function, Hold function, Min/Max Alarm, Averaging, data logging, Peak value memory, real time clock.
Pressure units	Selectable, mbar, bar, kPa, MPa, mmHg, PSI, m H2O
Measuring rate	slow: 4 meas./sec (ConF-Rate = Slow) fast: >1000 meas./sec (ConF-Rate = FASt and P.dEt)
Nominal Temperature	25°C
Sensor	Piezo-resistive relative pressure sensor integrated in device. Suitable for air and non-corrosive and non-ionizing gases and liquids. (Not suitable for direct contact with water – use air buffering)
Connection	2 (1) metal pressure ports for connection to 6 x 1 mm (4 mm inner tube Ø) or 8 x 1 mm (6 mm inner tube Ø) tubes at the top of device
Display	2 four digit LCDs (12.4 mm high and 7 mm high) for measuring values, and for min/ max memories, hold function, etc. as well as additional functional arrows.
Keypad	Membrane keypad 6 buttons
Data Logger	Store data at push of a button, or programmable in intervals of 1 to 3600 seconds, maximum of 10000 data sets
Output	Analogue output 0-1 volt scaleable
Interface	Serial interface (3.5mm jack) can be connected to USB or RS232 interface of a PC via electrically isolated interface adapter USB 3100, USB 3100 N, GRS 3100 or GRS 3105 (see accessories).
Power Supply	9V battery, type: IEC 6F22 (included in scope of supply) as well as additional d.c. connector (diameter of internal pin 1.9 mm) for external 10.5-12V direct voltage supply. (suitable power supply: GNG10/3000) Power
Power consumption	0.6 mA
Low Battery Warning	' bAt '
Operating Conditions	-20 ... +50 °C, 0 ... 95 %RH (not condensing)
Storage Temp	-20 ... +70 °C
Housing	Impact resistant ABS
EMC	2004/108/EG

Model	3181-002	3181-001	3181-07H	3181-07	3181-07B	3181-13	3181-13MB	3181-12
Range mBar	–5.000 to +5.000	-1 to +25	-1 to +70	-10 to +350	-10 to +420	-100 to +2000	-1000 to +2000	0-1300 Absolute
Resolution mBar	0.001	0.01	0.01	0.1	0.1	1	1	1
Accuracy	±0.3 % FS	±0.3 % FS	±0.1 % FS	±0.2 % FS	±0.1 % FS	±0.2 % FS	±0.2 % FS	±0.2 % FS
Max overload	250 mBar	100 mBar	1 Bar	1 bar	1 Bar	4 bar	4 Bar	4 Bar

1 Atmosphere equals 14.7 psi = 406.9" H2O = 101,325 Pascals = 1013 mBar

Ordering Information

Model	Price each	Order Online
3181-001, 002	$599.00
3181-07B, 07H	$660.00
3181-12, 07, 13	$567.00
3181-13MB	$589.00
Ex option intrinsically safe add "EX" to part number - additional price	$320.00
Serial interface adapter	$95.00

Precision Digital Manometers - Differential and Absolute with built in data logger and analogue output

Common Specifications

Ordering Information

Precision Digital Manometers - Differential and Absolute
with built in data logger and analogue output