- Relay option board
- Lab stand / bench mount
- 4-up rack adapter
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Explanation
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Accessories
The Schaevitz® microprocessor based LVDT indicator and set-point controller is designed for industrial and process control applications utilizing any LVDT/RVDT-based measurement device. In addition to displaying real-time readings of LVDTs, RVDTs and gage heads, the MP2000 also displays MIN, MAX, TIR, A+B and A-B values. Programmable, opto-isolated, open collector set-points may be assigned to any of the above functions.
A 17-bit analog-to-digital converter provides excellent performance and resolution. A new standard 9-pin RS-232 pin-out provides serial data output to a PLC or PC com port.
MP Series readout/ controllers are packaged in a 1/4 DIN aluminum case with a EL back-lit, it-mapped LCD display. (Units are splash-proof when mounted with a gasket.)
FEATURES
- Large 10 mm High Display Characters
- Software Set-Up Menu
- Industry Standard 9-Pin RS-232 Connector
- Greatly Enhanced Long-Term Reliability
- Rugged DIN Style Power Supply Connector
- Two Channels for the Price of One
APPLICATIONS
- LVDT-Based Weighting Systems
- Pass/Fail Part Sorting
- Roller Gap Control
- Concentricity Gaging
- Press Cycle Control
- Part Classification
Set-point Control
Four user-programmable digital set-points are used to monitor any display parameter. Any combination of high or low set-points may be selected. User programmable, high and low hysteresis values may be used to create set-point dead band, for prevention of control relay chatter. Each channel decimal point is individually programmable, via the set-up menu.
Auto-Calibration
A front panel push-button auto-zeros (tares) over the ± full scale range. Auto-calibration eliminates calculation of slope or gain factors. Calibration and setup parameters are stored in nonvolatile memory for retention on power down or interruption.
Readings
A large, easy to read, bit-mapped display provides user-friendly, menu driven prompts for simple push-button system setup, calibration and monitoring of in-process measurement parameters.
- Current value
- min/max
- A + B (sum of two channels)
- A - B (difference between two channels)
- TIR (Total Indicated Run-out)
Outputs
A real-time scaled analog output, proportional to the digital readout is provided for each LVDT channel. An RS-232 output is provided for data transfer to a computer at 1200 to 19.2K baud.
Specifications
|
LVDT excitation voltage: |
1 Vrms, 3 Vrms |
|
LVDT drive current: |
Up to 25 mArms per LVDT |
|
Excitation frequency: |
2.5 / 3.3 / 5 / 10 kHz (±5 %) |
|
Input sensitivity: |
0.6 Vrms or 1.2 Vrms for full scale readout |
|
Input impedance: |
>100 kOhm |
|
Linearity: |
≤±0.02 % of full scale |
|
Digital display: |
5 digit ±99.999 10 mm (0.4”) high bitmapped LCD with EL backlight |
|
Analog outputs: |
±5 V, 0 … 10 V |
|
Set-points: |
user-programmable, high or low with on-board LED indicators |
|
Set-point hysteresis: |
user programmable |
|
Set-points outputs: |
opto-isolated open collector logic outputs, 5 VDC, 4 mA per set-point |
|
Response: |
typically within 20 ms |
|
Operating temperature: |
0 … + 55 °C |
|
Power requirements: |
100 … 240 VAC, 47 … 63 Hz |
Connections
Pin Connections Output Ausgang J3:
1 -
2 - TxD
3 - RxD
4 - DSR
5 - Dig GND
6 - DTR
7 -
8 -
9 -
Pin Connections Output J4:
1 - Setpoint #4
2 - DSR
3 - TxD
4 - DTR
5 - TxD
6 -
7 - Sync input
8 - Sync output
9 -
10 -
11 -
12 -
13 -
14 - Remote zero
15 - Setpoint #3
16 - Setpoint #2
17 - Setpoint #1
18 - Setpoint return
19 - Remote reset
20 - Output channel B
21 - Output channel A
22 -
23 - Vcc (5 VDC)
24 - Dig. GND
25 - Analog GND
Input LVDT J1 and J2:
Dimensions
Shown with optional relay card.
Dimensions incl. front, H x W x D: approx. 99 x 99 x 180 mm.
All dimensions in inches, valuesin brackets in mm, approx. values.
These drawings are forinformation only and not intended for construction purpose. Please ask for detailed drawings.
