Strain Gauge or Load Cell Handheld Display with RS232 Data PortPSD232
SKU: PSD232
Description
The PSD and TR150 handheld indicators have now been replaced by the PSDS.
For applications requiring RS232 communication, the only remaining legacy model in production is the PSD232.
The strain gauge or load cell handheld display with RS232 interface enables the connection to many devices whether a PC or simple data logger. The PSD232 is fitted with a 8 pin connector which allows users to connect the appropriate cabling for their application.
The PSD232 weighs only 250 grams and has a 7 digit LCD display with 6 tactile push buttons for access to on/off, gross/net, peak, trough, display hold and shunt cal functions. The indicator is designed to interface with any full bridge sensor with an output sensitivity of up to 50 mV/V. Bridge resistances from 85 ohms upwards can be used.
Two units of measure are able to be read and displayed such as kg & lbs. An annunciator indicates which range has been selected and there is a window, to insert a legend, describing each unit of measure.
The menu options on the strain gauge or load cell handheld display is accessed via the tactile keypad and offers the ability to tailor the instruments response to the application, including configuring the display update rate to either 0.5 Hz, 1 Hz, 3 Hz or 10 Hz setting, auto power down and overload. Calibration is also performed from the menu. Up to 450 hours battery life can be achieved whilst in power save mode with powering via 2 x AA Alkaline batteries (not included). An auto sleep/off function can be set ranging from 1 minute up to 99 minutes.
PSD232 is TEDS ‘Plug and Play’ (Transducer Electronic Data Sheets) enabled.
1 year warranty with accessory options of a black leather carry case with shoulder strap which allows full operation of the PSD232 whilst being carried in the case.
The Case is Registered Design No. 3021311
Product Features & Benefits
- The RS232 version of the PSD the load cell or strain gauge handheld display with RS232 interface. This allows for connections to many interfaces including PCs and data loggers.
- Portable digital display for use as a strain gauge handheld. Easy to carry weighing only 250grams
- Waterproof IP65 NEMA4 battery powered
- 7 digit LCD display, with battery, peak, trough, net, overload and shunt cal indication
- Battery powered with life of 450 hrs in power save mode
- Tactile keyboard, with on/off, range select, peak/valley hold, and gross/net controls
- Microprocessor based, allowing single pass calibration facility (direct mV/V)
- Dual range for values such as Kg and lb
- TEDS enabled for automatic sensor calibration (IEEE1451 – template 33)
Specifications
| Parameter | Min | Typical | Max | Units |
|---|---|---|---|---|
| Non linearity | 0.001 | 0.005 | % FR | |
| Internal resolution | 24 | Bits | ||
| Resolution at 1 Hz sample rate | 250,000 | Counts /Divisions | ||
| Resolution at 10 Hz sample rate | 65,000 | Counts /Divisions | ||
| Temperature effect on zero | 0.0002 | 0.0007 | ±%FC/°@2.5mV/V | |
| Temperature effect on span | 0.0002 | 0.0005 | ±%/°C | |
| Offset stability | 0.002 | 0.008 | ±%FR* | |
| Gain stability | 0.003 | 0.01 | % per annum | |
| Excitation voltage | 4.8 | 5 | 5.2 | Vdc |
| Strain gauge impedance | 85 | 350 | 5,000 | Ohms |
| Sensitivity full range, setting 1 | -5 | +5 | mV/V | |
| Sensitivity full range, setting 2 | -50 | +50 | mV/V | |
| * from original offset at any time |
| Performance | |
|---|---|
| Input Type | Strain Gauge Full Bridge Sensors |
| Internal Battery | 2 x AA Alkaline, access via sealed rear compartment, please note batteries are not included |
| Battery Life | With 350R sensor continuously on 35 hours or up to 450 hrs in low power mode |
| Update Rate Strain Gauge Full | 10mS to 2s Including Peak/Valley Hold capture rate |
| Indication | |
|---|---|
| Display Type | 7 digit LCD display, 8.8mm high digits |
| Display Resolution | 1 part in 250,000 at 1s update |
| Annunciators | Low battery warning peak, trough, hold, net, shunt cal, range, by LCD annunicators |
| Control Variables | |
|---|---|
| Front Panel User Keys | Tactile Keys for:-
|
| Settable Parameters | Display Resolution Rate 0.5, 1, 3, 10, 25Hz Low power modes |
| Calibration | By front panel keypad buttons protected by key sequence |
| Extra connector | RS232 comms port |
| Environmental | ||
|---|---|---|
| Storage Temperature | -40 to +65ºC (excluding batteries) | |
| Operating Temperature | -10 to +50ºC (excluding batteries) | |
| CE Environmental Approvals | European EMC Directive 2004/1108/EC, Low Voltage Directive 2006/95/EC | |
Dimensions
Downloads
FAQ
| Q | Can I connect to RS232 using the PSD? |
| A | Yes, via the PSD232. This handheld can connect to most RS232 interface whether it’s a PC or simple data logger.
The PSD232 sends the displayed value to the RS232 port at 9600 baud in an ASCII format, terminated by a carriage return and line-feed making it suitable for stand alone data loggers, larger serial displays as well as interfacing onto a PC for logging which can provide a useful record during a calibration or load cell test. The RS232 output is provided at the same time that the display is updated The update rate is user configurable with updates rate of up 10Hz. |
| Q | Can I use the handheld to indicate different engineering units? |
| A | Yes, 2 separate ranges are available, which enable the instrument to read and display two separate engineering units; i.e. lbs/kg, tonne/kN, etc. The menu options provide the user with the ability to completely tailor the operation of each range such as the display update rate, low power operation and RS232 output along with the resolution and decimal point position. Each range tracks its own peak and trough as well as its Gross/Net state all of which are saved on powering. |
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