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BP104 

 

 

© BMC Messsysteme GmbH 

 

Page 4 

Important notes for using the BP104 

 

The 

BP104 

is only suitable for extra-low voltages, please observe the relevant regulations! 

 

Only use an electrical isolated power supply unit (with CE). 

 

All accessible pins are electrostatic devices. Workplace must be conductive during installation. 

 

The construction height depends on the height of the used measuring amplifiers. 

 

The 

BP104 

must only be used in closed housings (for reasons relating to EMC). 

 

For cleaning use water and mild detergent only.  

 

The device is designed to be maintenance-free. To calibrate the board it must be sent in to bmcm. 

 

The sensors or signals are connected at the input plug. Make sure to use shielded cables. 

 

For a good noise suppression connect the shield to ground at one end only. Close open inputs if possible. 

 

The 

BP104 

ground is electrically connected to the next connected measuring system and therefore also to the 

ground of the PC, which is usually also connected to earth. Be sure to avoid earth and ground loops during sensor 
wiring, since they will cause measuring errors! 

 

The device must not be used for safety-relevant jobs. With the use of the product the customer becomes manufac-
turer by law and is therefore fully responsible for the proper installation and use of the product. In case of improper 
use and/or unauthorized interference our warranty ceases and any warranty claim is excluded. 

 

Do not dispose of the product in the domestic waste or at any waste collection places. It has to be either duly 
disposed according to the WEEE directive or can be returned to bmcm at your own expense. 

Standard measuring amplifiers available for the BP104 

Order number 

Physical quantity to be measured 

Measuring range 

MAL-UI 

voltage or current 

±

10V, 

±

5V, 

±

1V, 

±

20mA 

MAL-PT100 

temperature with PT100 (linearized) 

0..300°C 

MAL-R1K 

resistance 

0..1k

Ω

 

MAL-SG2 

strain gauge at 5V DC excitation 

±

2mV/V 

MAL-SG5 

strain gauge at 5V DC excitation 

±

5mV/V 

MAL-THR 

thermocouple type K (without linearization) 

0..1250°C 

MAL-ISO10 

voltage 

±

10V 

MAL-ISO5 

voltage 

±

5V 

MAL-ISO1 

voltage 

±

1V (factory setting), 

±

20mA 

Ex works the MAL-UI are configured in the measuring range 

±

10V. For MAL-THR the cold junction compensation is not realized. 

Technical data BP104 (typical at 20°C) 

 

General 

Power supply: 

+5V DC from the PC/104 power supply

No-load current: 

app. 25mA

Operating current: 

max. 250mA

Sensor supply: 

1x +5V DC, max. 20mA, accuracy typ.: 

±

0.25%, TK typ.: 20ppm

Amplifier supply: 

app. 

±

12V max. 20mA

Dimensions: 

app. 90mm x 96mm x 25mm

Temperature range: 

-25°C..+70°C

Relative humidity: 

0 - 90% (not condensing)

Max. permissible potentials: 

60V DC acc. to VDE

CE standards: 

EN61000-6-1, EN61000-6-3, EN61010-1; for decl. of conformity (PDF) visit www.bmcm.de

ElektroG // ear registration: 

RoHS and WEEE compliant // WEEE Reg.-No. DE75472248

Accessories: 

miniature measuring amplifiers and converters of the MAL / MAL-ISO series, 

PC/104 base board GP

Delivery: 

product, bolts M3 x 15mm, description

Guarantee: 

2 years with effect from sales date, damages at product caused by improper use excluded

 

Connections 

Amplifier inputs: 

20-pole pin connector

Power supply: 

via PC/104 system plug

Amplifier outputs: 

16-pole pin connector

 
 
 
 

Manufacturer: BMC Messsysteme GmbH. Subject to change due to technical improvements. Errors and printing errors excepted. Rev. 1.0 

03/12/2009

 

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