Model MA8390 is a universal transmitter for all ALMEMO® sensors. It is especially easy and convenient to operate. The sensor programming is saved in the ALMEMO® connector. The transmitter automatically recognizes the sensor that is connected together with measuring range, units, comments, adjustment and correction values, and analog output scaling.
Transmitter and sensor can be changed quickly and easily. There is no need to alter the configuration. For customer-specific sensors, ready-fit ALMEMO® connectors are available.
Digital output is included as standard. The unit is ideally suitable for networked data acquisition and computer-supported on line operation. Sensors can be programmed and device parameters can be configured via interface commands. Packaging is a compact case with wall mounting or adapter for DIN rail mounting.
Measuring Inputs: 1 ALMEMO® input socket for 1
ALMEMO® sensor
Channels: Per sensor max. four channels (sensor-type specific,
measuring and function channels)
Input current: < 20 nA
A/D converter: Delta-sigma, 16-bit
Measuring ranges: as on Sensors for AMR Dataloggers bulletin
but:
Pt100 : with resolution 0.01K to +300°C
Ohm : 0 to 500 ohms, resolution 0.1
Volt DC : -2.0 to +2.6 V
Milliampere DC : -26 to +26 mA
Pt1000: not available
Measuring current Pt100 : < 0.5 mA
System accuracy: ±0.03% of measured value ±3 digits
Sensor power supply Network adapter : approx. 12 V, maximum 70 mA
Outputs:1 ALMEMO® socket for analog output cable or for
ALMEMO® data cable RS-232 / network cable
Option E : Ethernet interface, electrically isolated,
socket : RJ45 10/100 base-T, automatic switchover
Option Rx :analog output R2 : 0-10 V; R3 : 4-20 mA electrically
isolated, resolution : 15 bit
Standard equipment:
Date and time-of-day: software clock (not buffered)
Device address: 2 coding switches on the rear of the device
Power supply: 7 to 13 V DC, not electr. isolated
Option U : 10 to 30 V DC, electr. isolated
Current consumption: without input and output modules, without
options approx. 5.5 mA
Housing: (HxWxD) 60 x 108 x 29 mm, ABS (acrylo-nitrile butadiene
styrene) high impact resistance (max. 70°C)
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| PLEASE CALL 1-800-253-2497 TO ORDER THESE ITEMS | |
| Model | Description |
| MA8390-1 | Universal transmitter ALMEMO® 8390-1, Operating instructions,ALMEMO® Manual and AMR-Control software options |
| Options | |
| OA8390-R3 | Single analog output 4 to 20 mA, electr. isolated |
| OA8390-U | Power supply, electrically isolated, 10 to 30 V |
| OA8390-E | DC Ethernet interface (OA8390U not possible) |
| OA8390-R2 | Single analog output 0 to 10 V, electr. isolated |
| OA2290-HS | Option HS : Fixture for DIN rail mounting |
| Accessories | |
| ZA1909-DK5 | ALMEMO®RS232 data cable, electr. isolated, 9600 baud, 1 mA, 1.5m |
| ZB8390-H | Mounting plate with 2 clips |
| ZB1012-NA2U/USA | AC Power adapter 12 V / 200 mA |
| ZA1601-RK | ALMEMO®analog output cable, -1.25 to 2.00 V, 0.1 mV / digit, 1.5m |
| ZA5099NVL | ALMEMO®network distributor RS-422 (see ALMEMO Network Connections bulletin) |
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