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Electronic Pressure Calibrator
TLDMM |
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Digital Reference Presssure Indicator Type
TLDMM
(electronic Pressure Calibrator)
Datasheet

- Accuracy ±0.05% FS
- Pressure ranges up to 29000 psi / 2000 bar available
- Battery operated (1 year autonomy)
- Pressure units "bar", "mbar", "psi", "MPa", "kPA"
selectable
- PEAK-function (positive and negative)
- Programmable digital Filter
- Pressure connection 1/2" BSP male
- Large and clear LCD display
- Including S.I.T. Calibration Certificate,
traceable
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The pressure calibrator
TLDMM is a microprocessor
based digital pressure gauge, made of particularly high long-term stable
analogue section and a 16 bit A/D converter which ensure 65,000 internal
divisions. These features, together with a 0.05% accuracy class, make it
ideal as a laboratory instrument: in fact the pressure calibrator TLDMM
is proposed as a first line sample for Calibration Laboratories and is
provided with a S.I.T. calibration certificate, traceable to
international standard.The pressure calibrator
TLDMM has
internal batteries with 1 year autonomy, also guaranteed by the
Auto-PowerOff function, which activated if no measurements changes are
detected in the previous 30 minutes.
The user
can select different engineering units (bar, mbar, psi, MPa, KPa),
resolution and digital filter, suitable for measurements to be
performed. In order to increase the level of integration among
components, a combined (traditional and SMT) technology has been used,
that makes this reference pressure gauge more resistant against
mechanical stresses and vibrations and guarantees maximum reliability
for the circuit. The display also shows an analogue indication bar for
pressure, that is still on, even in the programming menu.
As an option, the pressure calibrator
TLDMM is
available with a RS232 interface. A connection cable and a simple Software to
read out the RS232 interface can be supplied on request.
A carrying case and a S.I.T. calibration certificate are
included in standard supply.
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Ranges and max. Display Resolutions:
Pressure Range
PSI |
Pressure Range
BAR |
max. Display Resolution |
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0...14.5 psi |
0...1 bar |
0.0001 bar |
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0...36 psi |
0...2,5 bar |
0.0005 bar |
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0...72.5 psi |
0...5 bar |
0.0005 bar |
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0...145 psi |
0...10 bar |
0.001 bar |
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0...290 psi |
0...20 bar |
0.002 bar |
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0...725 psi |
0...50 bar |
0.005 bar |
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0...1450 psi |
0...100 bar |
0.01 bar |
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0...3626 psi |
0...250 bar |
0.02 bar |
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0...5076 psi |
0...350 bar |
0.05 bar |
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0...7252 psi |
0...500 bar |
0.05 bar |
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0...10153 psi |
0...700 bar |
0.05 bar |
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0...14503 psi |
0...1000 bar |
0.1 bar |
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0...21756 psi |
0...1500 bar |
0.2 bar |
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0...29007 psi |
0...2000 bar |
0.5 bar |
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-30inHg/+14.5 psi |
-1...+1 bar |
0.0001 bar |
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-30inHg/+35 psi |
-1...+2,5 bar |
0.0005 bar |
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-30inHg/+72.5 psi |
-1...+5 bar |
0.0005 bar |
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-30inHg/+290 psi |
-1...+20 bar |
0,002 bar |
Technical Data:
| Linearity and
Hysteresis: |
better ±0.05%
FS |
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Readings per sec. (0 filter) |
10 (100 ms) |
| Reference
Temperature: |
+23°C |
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Ambient Temperature: |
0...+50°C |
| Storage
Temperature: |
-10...+60°C |
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Zero Function: |
50% |
| Digital Filter
(programmable): |
0...99% |
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Display Resolution (programmable): |
1, 2, 5 or 10 Digits |
| Pressure units
(switcheable): |
bar, mbar,
psi, MPa, KPa |
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Baud Rate at optional RS232 Interface: |
19200, 9600, 4800 |
| PEAK function: |
Positive (+)
and Negative (-) |
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Display: |
LCD, height 16 mm |
| Power Supply: |
4 Alkaline
Batteries 1,5 V (size AA) |
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Service Pressure: |
max. 100% FS |
| High Dynamic
Pressure: |
max. 75% FS |
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Permissible Pressure: |
max. 150% FS |
| Breaking
Pressure: |
>300% FS |
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Standard Process Coupling: |
1/2" BSP male |
| Recommended
Gasket: |
USIT A 63-18 |
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Tightening Torque: |
28 Nm (Tightening Wrench: 27 mm) |
| Housing
Material: |
Aluminium |
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Dimensions: |
appr. 132 x 80 x 48 mm (Height incl. coupling x Width x Depth) |
| Protection: |
IP 40 |
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RS232-Interface (Option): |
9-pol D-SUB (female) |
Options:
- Build-in version for panel mounting 83x83 mm,
back connection
- Version with mains power supply 230 VAC (no
batteries)
Recommendes pressure sources:
-
LPP 30 portable calibration handpump,
pneumatic,
pressure up to 35 bar (500 psi), vaccum -0,95 bar (-28 inHg)
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LPP 700 portable calibration
handpump, hydraulic,
pressure up to 700 bar (10000 PSI)
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LPP 1000 portable calibration
handpump, hydraulic,
pressure up to 1000 bar (14500 psi)
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LSP bench type pressure comparison
pump, hydraulic spindle pump, pressure up to 1000 bar (14500 psi) ... 7000
bar (101500 psi)
Notes:
- If used together with our calibration handpump
LPP 30, we recommend the
volume-reducer order-code VRS-G12.
- For a safe pressure connection at pressure
ranges >1000 bar (>14500 psi) we recomment our optional double
sealing cone order-code TLDMM-DK.
We offer complete pressure calibration systems "
LPP-Kit"
with
- Calibration Test Pump
- Reference Pressure Gauge / Pressure Calibrator
- Test hose
- Set of adapters
- Carrying case

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