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Hitachi

Hitachi High-Technologies in Singapore

Digital Manometer

Compact, multi-functional and high accuracy digital pressure gauge that is easy to use for field measurements.

Features

  • The semiconductor composite sensor allows measurement with high accuracy and stability.
  • A variety of useful measurement ranges from micro pressure (2kPa) to ultra-high pressure (20MPa) and absolute pressure.
  • Equipped with a convenient function for calibration work in the field.
    (Driving battery, DC24V power supply for transmitter, voltage / current meter and measurement data storage)
  • Employed Ni-MH battery for the environmentally friendly products. Power consumption has been reduced 30%. (Compared to the conventional model DMS-7)
  • Enhanced case robustness and extended operation time under battery power (approx. 9 hours) for the better use in field measurements.

Common Specifications

Display unit Graphic LCD 240 x 64 dots, with backlight
Displayed items Pressure : 4 digits/5 digits or 5 digits/6 digits selectable
Voltage/current : 4 digits/5 digits selectable (with a voltage/current input changeover switch)
Memory No. : 1 to 512
Tag. No. display : Specify any 10-digit number
Display update interval Approx. 0.4 seconds
Response time Approx. 2 seconds (in reaching the accuracy)
Operating temperature range 0 to 40°C
Storage temperature range -20 to 60°C
Operating humidity range 20 to 85% (non-condensing)
Transmitter power supply Output voltage 24±2 VDC fixed (with an ON/OFF switch)
Output current 40 mA max.
(with a short circuit protection)
Communication RS-232C interface, D-sub 9 pin, 2400 bps
Data memories 512data (1 screen / data)
Analog output 0 to ±5 VDC (proportional to the reference pressure range, with variable output voltage)
Accuracy: ±0.1% FS added to the pressure accuracy
Power supply AC power supply 100 to 240 VAC, 50/60 Hz
Allowable supply voltage range: 85 to 264 VAC
Internal battery: Ni-MH battery (Nickel Metal Hydride battery)
Continuous usage hour: approx. 9 hours (Tested with the backlight, analog output and 24VDC power are turned off)
Power consumption
(with 100 VAC)
Normal : 7 VA
Max. : 20 VA
For battery charging only : 12 VA
Battery charging time : constant current charge (approx. 5 hours) + trickle charge
Warm-up time 30 minutes
Pressure connection Rc1/4
Dimension (W) 294mm× (D) 276mm× (H) 104mm(excluding protrusion and handle)
Weight Approx. 5.2 kg (20 MPa pressure range model: approx. 5.7 kg)
Accessories Power cord ・・・1
Fuse (2A) ・・・1
3P-2P converter adapter for AC power supply・・・1
2P banana plug・・・2
Instruction manual・・・1

Standard specifications 1

ItemDMS-7A-2KDMS-7A-50KDMS-7A-200K
Application pressure Micro Low Moderate
Reference pressure range 2kPa 50kPa 200kPa
Measuring rangePressure
(Readout range)
-2 to 2kPa
(-2.2 to 2.2kPa)
-50 to 50kPa
(-55 to 55kPa)
-100 to 200kPa
(-100 to 200kPa)
Voltage -6 to 6 VDC (input impedance: approx. 1MΩ)
Current -24 to 24 mADC (input impedance: approx. 250Ω)
Maximum allowed pressure 50kPa 100kPa 240kPa
Applicable fluids
(non-flammable and non-corrosive fluids)
Gases
(5 to 40ºC)
Gases and liquids
(5 to 40°C)
Accuracy
(23±3°C)
PressurePositive ±0.1% FS
(0 to 2kPa)
±0.03% FS
(0 to 50kPa)
±0.03% FS
(0 to 200kPa)
Negative ±0.2% FS
(-2 to 0kPa)
±0.1% FS
(-50 to 0kPa)
±0.1% FS
(-100 to 0kPa)
Voltage/current ±(0.03%FS+2digits):Voltage range 0 to ±6 VDC, current range 0 to ±24 mADC
Temperature effectsPressureZero ±0.3%FS/10°C ±0.1%FS/10°C ±0.05%FS/10°C
Span ±0.1%FS/10°C ±0.1%FS/10°C ±0.05%FS/10°C
Voltage/current ±0.05%FS/10°C
Analog output range -5 to 0 to 5 VDC -5 to 0 to 5 VDC -2.5 to 0 to 5 VDC

Standard specifications 2

ItemDMS-7A-2MDMS-7A-20MDMS-7A-200A
Application pressure High Ultra high Absolute
Reference pressure range 2MPa 20MPa 200kPa abs.
Measuring rangePressure
(Readout range)
0 to 2MPa
(0 to 2.2MPa)
0 to 20MPa
(0 to 22MPa)
0 to 200kPa abs.
(0 to 220kPa abs.)
Voltage -6 to 6 VCD(input impedance: approx. 1MΩ)
Current -24 to 24 mADC(input impedance: approx.250Ω)
Maximum allowed pressure 2.4MPa 24MPa 240kPa abs.
Applicable fluids
(non-flammable and non-corrosive fluids)
Gases and liquids(5 to 40°C) Gases(5 to 40°C)
Accuracy
(23±3°C)
PressurePositive ±0.03% FS
(0 to 2MPa)
±0.07% FS
(0 to 20MPa)
±0.07% FS
(0 to 200kPa abs)
Negative - - -
Voltage/current ±(0.03%FS+2digits):Voltage range 0 to ±6 VDC,
current range 0 to ±24 mADC
Temperature effectsPressureZero ±0.05%FS/10°C
Span ±0.05%FS/10°C
Voltage/current ±0.05%FS/10°C
Analog output range 0 to 5 VDC 0 to 5 VDC 0 to 5 VDC

Accessories

ModelDescription
DMB-12A Ni-MH battery for model DMS-7A digital manometer (spare) 12 VDC, approx. 500 g
DMD-7 Measurement cable approx. 1.7 m (Alligator clip - 2P banana plug)
DME-7 Carrying case

The handy carrying case protects the main unit and also accommodates documents.
The case features side pockets on both sides for a hand pump and tuning tools