Time Electronics 7038 - Multifunction Pressure Indicator Module
The 7038 is a precision multifunction indicator module that can be used for pressure or vacuum calibration. It also has the provision to measure process loop current. This allows pressure transmitters and converters to be calibrated directly (using external DC supply or accompanying module). The following versions are available; Vacuum, 0.2, 2, 5, 10, 20, 35, 70, 100, 200, 400, or 600bar.
The display is 4.5 digit LCD and pressure can be displayed in any of nine popular engineering units (Bar, PSI, kPa, Mpa, inWg, cmWg, inHg, mmHg, Kg/cm2, atm, specify 9 on ordering). Basic accuracy is 0.04% for pressure. Loop current is displayed in mA, or percentage of span (4-20mA). A leak rate function is also provided and displays leakage, either in pressure units per second, or per minute as selected in the 'User Set-Up'. Additionally maximum and minimum pressure (or loop current) can be displayed.
The module is fitted as standard with an RS232 interface situated on the rear of the CalBench console. This enables communication and readback with EasyCal calibration software (supplied as standard with the 7051 multifunction calibrator/control centre module). With EasyCal the user can define pressure calibration procedures and create and print traceable calibration certificates.
For input pressure external pumps are available. The 7090 pneumatic (-950mbar to 40bar), 7095 hydraulic (0 to 700bar) hand pumps or the 7194 benchtop pneumatic pump (0.95bar vacuum to 120bar) are ideal for this purpose.
- Vacuum to 600bar versions
- Best accuracy 0.04% of full scale
- Pneumatic or hydraulic input
- > 70ppm/°C temperature stability
- 4.5 digit display
- Loop current measure
- EasyCal software compatible
Technical Specifications
| Range (bar) | Vac | 0.2 | 2 | 5 | 10 | 20 | 35 | 70 | 100 | 200 | 400 | 600 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Accuracy (% of fs) |
0.04 |
0.1 |
0.04 |
0.04 |
0.04 |
0.04 |
0.04 |
0.04 |
0.04 |
0.1 |
0.1 |
0.1 |
| Resolution (bar) | .0001 | 0.01mb | .0001 | .0001 | .0001 | .0001 | 0.001 | 0.01 | 0.01 | 0.01 | 0.1 | 0.1 |
| Temperature Stability | Less than 70ppm per °C |
| Linearity | 0.02% of full scale |
|
Units |
bar, PSI, kPa, MPa, inWg, cmWg, inHg, mmHg, Kg/cm2, atm (9 units only, specify on order) |
| Maximum Pressure | 2 x range, 1.5 x range for 20bar and above |
| Sensor | Piezo-resistive - stainless steel diaphragm |
| Over pressure warning | 1.2 x range full scale - audio and visual (on LCD) warning |
| Fittings | Minimess (>20bar versions) & Quick Release (<20bar versions) |
Loop Current Calibration
|
Range |
+/- 200mA , or % of 4 - 20mA |
| Display | -199.99 to +199.99mA, or -25% to +200% |
|
Resolution |
Resolution: 10μA (200mA range), (%4-20mA = 0.1%) |
|
Accuracy |
0.05% of reading +/- 2 digit (%4-20mA = 0.1%) |
|
Loop Resistance |
Less than 2 ohms |
|
Protection |
250mA automatic reset Poly-Fuse |
| Terminals | 4mm industry standard terminal posts |
General Specifications
|
Display |
4.5 digit LCD |
|
Interfaces |
RS-232 for readback (suitable for use with EasyCal and 7051 multifunction calibrator & control module) |
|
Module Width |
100mm (primary or secondary console fitting) |
|
Optional Extras |
Hand and desktop pumps, fittings/adaptors kits, EasyCal calibration software, and calibration certificates |
| Country of Origin | UK |
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